Warning device and vehicle

Abstract

The embodiment of the application relates to the technical field of vehicle safety, and discloses a warning device and a vehicle, wherein the warning board of the warning device comprises a folding mechanism and a reflective layer; the folding mechanism is in a tetrahedron structure when in an unfolded state; the reflective layer is wrapped on the outer surface of the folding mechanism, and the reflective layer is provided with a warning mark. The barrel of the ejection mechanism has a containing cavity, the barrel is arranged on a vehicle body, an elastic unit is arranged in the barrel, the folded warning board is arranged in the barrel and faces the outlet of the barrel relative to the elastic unit, and a switch unit is arranged in the barrel and used for controlling the elastic unit to eject the folded warning board out of the vehicle body and unfold the warning board. The warning device can achieve the technical effect of fast, safe and efficient warning.

Description

Technical Field

[0001] This application relates to the field of vehicle safety technology, specifically to a warning device and a vehicle. Background Technology

[0002] With the development of intelligent transportation systems and the continuous growth of car ownership, road safety has become an increasingly important concern. After a vehicle collision or malfunction, timely placement of warning signs is crucial to preventing secondary accidents. Currently, most vehicles are equipped with portable warning triangles, which drivers must manually remove and place at a prescribed distance behind the vehicle after an accident, typically at least 50 meters.

[0003] However, the manual placement method mentioned above has problems such as long response time and operational danger. Utility Model Content

[0004] In view of the above problems, this application provides a warning device and vehicle to solve the technical problems of long response time and dangerous operation in the manual placement method in the prior art.

[0005] A first aspect of this application provides a warning device, comprising:

[0006] The warning sign includes a folding mechanism and a reflective layer. When the folding mechanism is in the unfolded state, it has a tetrahedral structure. The reflective layer covers the outer surface of the folding mechanism and has warning markings on it.

[0007] The ejection mechanism includes:

[0008] A cylindrical body having a receiving cavity, the cylindrical body being disposed on a vehicle body;

[0009] An elastic unit is disposed inside the cylinder, and the foldable warning sign is folded inside the cylinder and faces the outlet of the cylinder relative to the elastic unit;

[0010] A switching unit is disposed in the cylinder, and the switching unit is used to control the elastic unit to pop out and unfold the folded warning sign toward the outside of the vehicle body.

[0011] This application provides a warning device that automatically launches a folding warning sign stored inside the vehicle to a safe area behind the vehicle using a built-in ejection mechanism without manual operation. The sign self-unfolds during flight or landing, forming a stable three-dimensional reflective structure. Due to its tetrahedral unfolding configuration, multiple sides remain exposed regardless of landing posture, significantly improving visibility and recognition rate in complex environments. The reflective layer further enhances the warning effect at night and in low-light conditions. The entire process has a response time of less than 3 seconds, far faster than manual placement, avoiding the risk of drivers and passengers being exposed to traffic flow. It solves the technical problems of slow response, dangerous operation, and poor visibility associated with traditional warning methods, achieving a fast, safe, and efficient warning effect. This solution is applicable to various passenger cars, commercial vehicles, and special vehicles, and can also be extended to the active safety systems of intelligent connected vehicles.

[0012] In one alternative embodiment, the switching unit includes:

[0013] The control structure is located on the outside of the cylinder.

[0014] The connector has one end connected to the control structure and the other end passing through the cylinder and inserted into the elastic unit to limit the displacement of the elastic unit; the connector is also used to move outward toward the cylinder under the control of the control structure to release the restriction on the elastic unit.

[0015] In one alternative embodiment, the control structure includes:

[0016] An acceleration sensor is used to acquire acceleration data of the vehicle body;

[0017] A control unit is used to receive and process the acceleration data, and control the connector to release the restriction on the elastic unit when the acceleration data reaches a first critical value.

[0018] A positioning system is electrically connected to the control unit, which is used to control the positioning system to send positioning information to the outside when the acceleration data reaches a first critical value.

[0019] In one alternative embodiment, the resilient unit comprises:

[0020] A compression spring, one end of which is connected to the inner bottom wall of the receiving cavity, and the other end of which faces the outlet of the cylinder;

[0021] A pressure plate is disposed at the end of the compression spring facing the outlet, and the side of the pressure plate facing away from the compression spring is used to support the warning sign;

[0022] The end of the connector facing away from the control structure passes through the cylinder and is inserted into the pressure plate.

[0023] In one alternative embodiment, the folding mechanism includes three side display sections and a base structure;

[0024] The reflective layer covers at least three of the side display sections, and the base structure supports the three side display sections.

[0025] In one alternative embodiment, the folding mechanism includes:

[0026] The first push rod includes a first end and a second end;

[0027] The second push rod includes the third and fourth ends;

[0028] The third push rod includes the fifth and sixth ends;

[0029] A first hinge is used to connect the first end, the third end, and the fifth end to each other, so that the first top rod, the second top rod, and the third top rod are folded or unfolded about the first hinge to form three side display sections.

[0030] In one alternative embodiment, the folding mechanism further includes:

[0031] A first folding support rod is rotatably connected at one end to the second end and at the other end to the fourth end, so as to unfold and support the second end and the fourth end when the folding mechanism is unfolded.

[0032] The second folding support rod is rotatably connected to the fourth end at one end and to the sixth end at the other end, so as to unfold and support the fourth end and the sixth end when the folding mechanism is unfolded;

[0033] The third folding support rod has one end rotatably connected to the sixth end and the other end rotatably connected to the first end, so that it can unfold and support the sixth end and the first end when the folding mechanism is unfolded;

[0034] The first folding support rod, the second folding support rod, and the third folding support rod together form the base structure.

[0035] In one alternative embodiment, the first folding strut includes a first sub-strut, a second sub-strut, and a second hinge;

[0036] One end of the first sub-rod is rotatably connected to the first end, and the other end is folded and connected to one end of the second sub-rod via the second hinge. The other end of the second sub-rod is rotatably connected to the third end.

[0037] In one alternative embodiment, the warning sign further includes a light-emitting element disposed on the folding mechanism;

[0038] And / or,

[0039] The warning sign also includes a counterweight structure;

[0040] The first folding support rod, the second folding support rod, and the third folding support rod together form a base structure, and the counterweight structure is disposed on the base structure.

[0041] A second aspect of this application also provides a vehicle, including a vehicle body and a warning device as described above. Attached Figure Description

[0042] The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0043] Figure 1 A schematic diagram of the structure of a warning device provided in an embodiment of this application;

[0044] Figure 2 This is a schematic diagram of the structure of a warning sign provided in an embodiment of this application.

[0045] Figure label:

[0046] 100. Warning signs;

[0047] 110. Folding mechanism; 120. Reflective layer; 130. Warning sign; 140. Side display section; 150. Base structure;

[0048] 111. First push rod; 112. Second push rod; 113. Third push rod; 114. First hinge; 115. First folding strut; 116. Second folding strut;

[0049] 1111, First end; 1112, Second end; 1121, Third end; 1122, Fourth end; 1131, Fifth end; 1132, Sixth end; 1151, First sub-rod; 1152, Second sub-rod; 1153, Second hinge;

[0050] 200. Ejection mechanism;

[0051] 210. Cylinder body; 220. Elastic unit; 230. Switching unit;

[0052] 211. Receiving cavity; 212. Outlet; 221. Compression spring; 222. Pressure plate; 231. Control structure; 232. Connector. Detailed Implementation

[0053] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the specific technical solutions of this application will be further described in detail below with reference to the accompanying drawings of the embodiments of this application. The following embodiments are used to illustrate this application, but are not intended to limit the scope of this application.

[0054] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0055] Furthermore, in the embodiments of this application, directional terms such as "upper," "lower," "left," and "right" are defined relative to the positions in which the components are schematically placed in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the position of the components in the accompanying drawings.

[0056] In the embodiments of this application, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can mean a fixed connection, a detachable connection, or an integral part; it can mean a direct connection or an indirect connection through an intermediate medium.

[0057] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0058] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0059] The manual placement method mentioned above suffers from problems such as long response time and operational hazards. These issues arise because this manual placement method presents risks, especially on high-speed roads or in low-visibility environments, where the driver's exit from the vehicle can easily trigger a secondary collision. Furthermore, due to human error, the warning sign may not be correctly deployed or stably placed, resulting in reduced warning effectiveness.

[0060] To address the aforementioned issues, this application provides a warning device and vehicle. By integrating an ejection mechanism and a foldable tetrahedral warning sign into the vehicle body, combined with an automatic triggering mechanism, the warning sign can be quickly ejected to a safe area behind the vehicle and automatically unfolded without manual intervention upon collision. Because it utilizes an elastic unit for energy storage and releases it under the control of a switching unit, it achieves millisecond-level response, solving the delay and safety hazards associated with traditional warning signs that rely on manual operation. After unfolding, the folding mechanism forms a tetrahedral structure with three or more sides facing upwards, which, combined with a reflective layer, significantly improves visibility and warning effect from multiple angles and in all weather conditions. The overall structure is compact and reliable, meeting the application requirements of automated and intelligent vehicle safety systems.

[0061] The warning device and vehicle provided in this application will now be described with reference to the accompanying drawings and specific embodiments.

[0062] refer to Figure 1 and Figure 2 This application provides a warning device, which may include a warning sign 100 and a ejection mechanism 200.

[0063] The warning sign 100 may include a folding mechanism 110 and a reflective layer 120. When the folding mechanism 110 is in the unfolded state, it has a tetrahedral structure. The reflective layer 120 covers the outer surface of the folding mechanism 110 and has a warning sign 130 on it.

[0064] The warning sign 100, as the core component for visual warning, includes a folding mechanism 110 and a reflective layer 120. When unfolded, the folding mechanism 110 forms a three-dimensional tetrahedral structure, which can be a triangular pyramid or a regular tetrahedron, ensuring that at least three sides face upwards after landing, thus forming an effective visual recognition surface from any direction. This structure can be automatically unfolded via a hinged frame and a resetting elastic element. The material can be lightweight, high-strength aluminum alloy or engineering plastics, balancing structural strength and overall weight control. The reflective layer 120 covers the outer surface of the folding mechanism 110 and uses a microprism-type reflective film with high retroreflective performance, significantly improving visibility distance under vehicle headlights at night. The surface of the reflective layer 120 is marked with standardized red / orange "!" or "Danger" warning symbols 130, meeting the graphic and color requirements for road traffic accident warning signs. In the non-working state, the warning sign 100 is folded and compact, easily stored inside the cylinder 210.

[0065] The ejection mechanism 200 may include a cylinder 210, an elastic unit 220, and a switching unit 230. The cylinder 210 has a receiving cavity 211 and is designed to be mounted on a vehicle body. The elastic unit 220 is disposed within the cylinder 210, and the folded warning sign 100 is folded and positioned within the cylinder 210, facing an outlet 212 relative to the elastic unit 220. The switching unit 230 is disposed within the cylinder 210 and controls the elastic unit 220 to eject and unfold the folded warning sign 100 towards the outside of the vehicle body.

[0066] The cylinder 210 has a hollow shell structure with an internal cavity 211 for accommodating the folded warning sign 100 and some drive components. The cylinder 210 is fixedly installed below the rear of the vehicle or inside the rear bumper, with the outlet 212 facing the rear of the vehicle to ensure a reasonable ejection direction. The cylinder 210 can be made of metal or reinforced engineering plastic, possessing sufficient structural rigidity to withstand the ejection impact, and is equipped with a guide structure to ensure the warning sign 100 moves along a predetermined trajectory. An elastic unit 220 is disposed within the cavity 211 of the cylinder 210, serving as a power source. One end of the elastic unit 220 is connected to the bottom of the cavity 211, and the other end faces the outlet 212 of the cylinder 210. The folded warning sign 100 is located between the elastic unit 220 and the outlet 212. The elastic unit 220 can be in the form of a compression spring 221, a pneumatic piston, or a composite energy storage material. A pre-compressed helical spring can be selected, capable of stably storing energy under prolonged compression and rapidly performing work upon release to propel the warning sign 100 out at high speed. The switch unit 230 is mounted on the cylinder 210 and is used to lock or release the energy output path of the elastic unit 220. Its function is to maintain the constraint on the elastic unit 220 under normal driving conditions to prevent accidental triggering; when a start signal is received, the constraint is immediately released, allowing the elastic unit 220 to push the warning sign 100 outward. The switch unit 230 can be implemented based on electromagnetic locks, mechanical pins, or electric push rods, etc., and has a fast response speed, high reliability, and is compatible with vehicle electronic control systems.

[0067] When a vehicle collides or reaches a preset acceleration threshold, the control system sends a command to the switching unit 230. The switching unit 230 releases the constraint on the elastic unit 220, and the elastic unit 220 quickly releases its stored energy, propelling the folding warning sign 100 to accelerate out along the outlet 212 of the cylinder 210. During ejection or at the moment of landing, the warning sign 100 automatically unfolds into a tetrahedral structure by relying on the elastic restoring force of its own folding mechanism 110, and finally stands stably on the ground. The reflective layer 120 provides multi-angle high visibility warnings in all directions.

[0068] Through the above technical solution, this application achieves automatic ejection of the folding warning sign 100 stored inside the vehicle to a safe area behind the vehicle using a built-in ejection mechanism 200, without relying on manual operation. The sign self-unfolds during flight or landing, forming a stable three-dimensional reflective structure. Due to its tetrahedral unfolding configuration, multiple sides are always exposed upwards regardless of the landing posture, greatly improving visibility and recognition rate in complex environments. The reflective layer 120 further enhances the warning effect at night and in low-light conditions. The entire process has a response time of less than 3 seconds, far faster than manual placement, avoiding the risk of drivers and passengers being exposed to traffic flow. It solves the technical problems of slow response, dangerous operation, and poor visibility in traditional warning methods, achieving a fast, safe, and efficient warning effect. This solution is applicable to various passenger cars, commercial vehicles, and special vehicles, and can also be extended to the active safety systems of intelligent connected vehicles.

[0069] refer to Figure 1 and Figure 2 In some embodiments, the switching unit 230 may include a control structure 231 and a connector 232.

[0070] The control structure 231 is located on the outside of the cylinder 210. One end of the connector 232 is connected to the control structure 231, and the other end passes through the cylinder 210 and is inserted into the elastic unit 220 to limit the displacement of the elastic unit 220. The connector 232 is also used to move outward from the cylinder 210 under the control of the control structure 231 to release the restriction on the elastic unit 220.

[0071] The connector 232 serves as a mechanical actuator connecting the control structure 231 and the elastic unit 220. One end connects to the output mechanism of the control structure 231 (such as an electromagnetic push rod, motor lead screw, or shape memory alloy actuator), while the other end extends into the cylinder 210 and inserts into a critical force-bearing part of the elastic unit 220 (such as a limiting hole on the pressure plate 222), forming a physical lock. This connector 232 is typically made of high-strength metal materials, such as stainless steel or surface-hardened alloy steel, possessing sufficient shear strength and wear resistance to ensure no deformation or jamming during long-term compressed energy storage. Its cross-section can be designed as circular, square, or polygonal to match corresponding guide holes and anti-rotation grooves, preventing rotation from causing tripping failure.

[0072] When the system is in standby mode, the elastic unit 220 (such as compression spring 221) is pre-compressed to a set stroke, and energy is stored in the spring. At this time, the connector 232 remains inserted, fixing the pressure plate 222 or other load-bearing components in the initial position, effectively preventing the warning sign 100 from popping out unexpectedly. Once the control structure 231 receives a sudden acceleration signal or an airbag deployment command, it immediately initiates the unlocking procedure, driving the connector 232 to be pulled out axially, releasing it from the constraint of the elastic unit 220. Subsequently, under the action of restoring force, the elastic unit 220 rapidly pushes the pressure plate 222 and the folded warning sign 100 it carries towards the outlet 212 of the cylinder 210, completing the ejection action.

[0073] As an optional implementation, the control structure 231 can use an electromagnetic drive mechanism as the power source, i.e., an electromagnetic lock: when energized, a magnetic force is generated to attract the connector 232 and maintain the locked state; when de-energized, a reset spring pulls the connector 232 out, realizing the "power-off unlocking" logic and improving fault safety. In another alternative, the connector 232 can be directly driven by an electric push rod or a micro linear motor, supporting bidirectional control (it can be actively inserted or actively removed), suitable for applications requiring multiple tests or self-test functions.

[0074] The assembly relationship between the components is as follows: A through hole is provided on the cylinder 210 for the connector 232 to pass through, and a sliding fit is achieved through bearings or bushings; the control structure 231 is fixed to a pre-reserved mounting base on the outer wall of the cylinder 210 to ensure reliable connection with the end of the connector 232; the inner end of the connector 232 extends into the receiving cavity 211 and forms a plug-in fit with the pressure plate 222 in the elastic unit 220. This fit can be an interference fit, a clearance fit with a limiting step, or a pin key structure to enhance shear resistance. The design of the entire switching unit 230 takes into account response speed, structural compactness, and long-term stability.

[0075] Through the above technical solution, this application achieves the following: In the event of a vehicle emergency, the control structure 231 can quickly respond to external signals, drive the connector 232 to exit, release the energy lock on the elastic unit 220, and allow the pre-stored mechanical energy to be released instantaneously, causing the warning device to automatically pop out. Because the connector 232 adopts a through-type layout, the control structure 231 does not need to be built into a high-pressure, high-stress environment, improving the service life of electronic components and the overall reliability of the system. At the same time, this mechanical locking mechanism has a simple structure and reliable operation, effectively avoiding false triggering or failure to activate, ensuring the normal operation of the warning device at critical moments.

[0076] refer to Figure 1 and Figure 2 In some embodiments, the control structure 231 may include an acceleration sensor, a control element, and a positioning system.

[0077] An accelerometer is used to acquire acceleration data of the vehicle body. A control unit receives and processes the acceleration data, and when the acceleration data reaches a first critical value, controls connector 232 to release the restriction on elastic unit 220. A positioning system is electrically connected to the control unit, which controls the positioning system to send positioning information externally when the acceleration data reaches the first critical value.

[0078] As the front-end sensing unit of the system, the accelerometer continuously detects changes in acceleration experienced by the vehicle during operation, paying particular attention to high-amplitude acceleration signals generated by sudden, severe deceleration or collision impacts. This sensor can be installed in areas with high structural rigidity, such as below the vehicle's center console or along the longitudinal beams of the vehicle body, to ensure the authenticity and reliability of the measurement data.

[0079] As the core decision-making component of the entire control structure 231, the control unit is responsible for receiving raw data from the acceleration sensor and analyzing and judging it according to a preset algorithm. Specifically, the control unit has a built-in signal processing module and a logic judgment module, which can analyze the time series characteristics of the acceleration data and identify whether there is a transient peak value exceeding the "first threshold". This first threshold value can be set to a threshold such as 5g, 8g, or 15g according to different vehicle models, usage scenarios, and safety standards. For example, when a vehicle experiences a collision of moderate or greater intensity, it will usually generate a longitudinal deceleration greater than 8g, which is considered to meet the trigger condition. Once the determination is made, the control unit immediately outputs a control signal to drive the connector 232 to act, release the mechanical lock on the elastic unit 220, and simultaneously activate the external communication function of the positioning system. The control unit can be a vehicle-specific microcontroller (MCU).

[0080] The positioning system and control unit communicate via electrical connection for data exchange and command response. Its primary function is to rapidly acquire the vehicle's current geographic coordinates upon receiving a start signal from the control unit and wirelessly transmit accident location information. This positioning system can integrate the Global Positioning System (GPS) and / or the BeiDou Navigation Satellite System (BDS), supporting multi-satellite joint positioning to ensure rapid acquisition of effective satellite signals even in complex environments such as urban canyons, achieving meter-level or even sub-meter-level positioning accuracy. The acquired location information can be broadcast via radio frequency (RF) transmitter using a specific protocol format (such as DSRC or C-V2X short-range communication protocol), with a communication range of up to 500 meters, enabling warning systems of following vehicles to receive timely information and alert drivers to potential accident risk areas ahead.

[0081] Through the above technical solution, this application achieves automatic triggering of the warning device release action without manual intervention when a vehicle encounters a sudden collision, and simultaneously releases the accident location information to the public. Because the accelerometer can sensitively capture abnormal vehicle dynamics, the system response time is significantly shortened, improving by several orders of magnitude compared to the traditional method of manually placing a warning triangle. Furthermore, the introduction of the positioning system overcomes the distance limitations of purely visual warnings, achieving long-distance, all-weather, and all-time information transmission capabilities. Therefore, this embodiment effectively solves the problems of untimely post-accident warnings, the risk of secondary injury due to personnel needing to get out of the vehicle to place signs, and the lack of proactive information notification functions in existing technologies, significantly enhancing driving safety protection levels, and is particularly suitable for emergency response in high-risk scenarios such as highways, nighttime, or inclement weather.

[0082] refer to Figure 1 and Figure 2 In some embodiments, the elastic element 220 may include a compression spring 221 and a pressure plate 222.

[0083] One end of the compression spring 221 is connected to the inner bottom wall of the receiving cavity 211, and the other end faces the outlet 212 of the cylinder 210. A pressure plate 222 is disposed at the end of the compression spring 221 facing the outlet 212, and the side of the pressure plate 222 facing away from the compression spring 221 is used to support the warning sign 100. The end of the connector 232 facing away from the control structure 231 passes through the cylinder 210 and is inserted into the pressure plate 222.

[0084] The compression spring 221 serves as an energy storage element. One end is fixedly connected to the bottom wall of the cylinder 210, forming a stable support point, while the other end acts on the pressure plate 222, storing sufficient ejection energy through pre-compression. The pressure plate 222 is a rigid plate-shaped component positioned between the compression spring 221 and the warning sign 100. The side facing the compression spring 221 receives the thrust when the spring is released, while the side facing away from the spring directly contacts and supports the folded and stored warning sign 100, thus playing a role in force transmission and distribution and preventing the warning sign 100 from shifting or getting stuck due to uneven force during ejection.

[0085] The shape of the pressure plate 222 is adapted to the internal cross-section of the cylinder 210. It is usually a circular or regular polygonal flat plate structure. The edge may be provided with guide flanges or sliding bearings so that it can slide smoothly along the axis inside the cylinder 210 and avoid rotation or tilting.

[0086] The connector 232 penetrates through the side wall of the cylinder 210 and is inserted into the positioning hole or limiting groove on the pressure plate 222, thereby locking the position of the pressure plate 222 in the non-working state and indirectly maintaining the energy storage state of the compression spring 221. The connector 232 can be a pin-type structure, and its insertion depth is sufficient to resist the static pressure of the spring without slippage. When the control system sends a trigger signal, the connector 232 is pulled outward under the action of electromagnetic force or mechanical driving force, releasing the constraint on the pressure plate 222, allowing the compression spring 221 to quickly release energy and push the pressure plate 222 and the warning sign 100 as a whole to move towards the outlet 212.

[0087] Through the above technical solution, this application achieves the following: upon receiving a control signal, the connector 232 releases its restraint on the pressure plate 222, and the compression spring 221 immediately releases its pre-stored energy, pushing the pressure plate 222 to push the folded warning sign 100 out at high speed along the axial direction of the cylinder 210. Due to the presence of the pressure plate 222, the spring force is evenly distributed at the bottom of the warning sign 100, significantly improving the stability and reliability of the ejection process. Simultaneously, the design of the connector 232 acting directly on the pressure plate 222 makes the locking and releasing actions more precise and controllable, avoiding the risk of delay or failure caused by intermediate transmission links. Therefore, this structure effectively solves the problems of unstable power transmission and unreliable release during automatic ejection, ensuring that the warning device can be deployed promptly and accurately in emergency situations.

[0088] refer to Figure 1 and Figure 2 In some embodiments, the folding mechanism 110 may include three side display sections 140 and a base structure 150. A reflective layer 120 covers at least the three side display sections 140, and the base structure 150 supports the three side display sections 140.

[0089] Among them, the three side display sections 140 are the core components constituting the main visible area of ​​the warning sign 100. When unfolded, they are distributed approximately symmetrically around the central axis, forming a spatial geometric shape resembling a triangular prism or a non-closed tetrahedron. Each side display section 140 has an independent display surface for supporting the reflective layer 120 and the warning sign 130. Its shape can be an isosceles triangle, trapezoid, or polygon, and the specific shape is designed to adapt to the overall folding logic and unfolding trajectory.

[0090] In addition, the display sections 140 on each side are connected by hinges, such as pivots, hinges or flexible crease structures, so that they can be radially folded inward in the compressed state to reduce volume and make it easy to store them in the cylinder 210.

[0091] The reflective layer 120 covers at least the outer surface of three side display sections 140, and optionally covers the entire exposed surface to maximize the reflective area.

[0092] The base structure 150 is located at the bottom of the three side display sections 140, serving as the supporting foundation for the entire folding mechanism 110. Its main function is to provide a horizontal contact surface after the warning sign 100 is placed on the ground, preventing it from tipping over due to uneven ground or wind. The base structure 150 can be designed as a flat, curved-foot, or support-leg structure, with the specific form adjusted according to the requirements of unfolding dynamics and stability.

[0093] In one alternative embodiment, the base structure 150 is formed by a combination of multiple folding struts connected by hinges to achieve automatic conversion from a folded state to an unfolded state.

[0094] Through the above technical solution, this application achieves the following: the warning device automatically deploys upon triggering without manual intervention, and through the structural cooperation of the three-sided display and the base support, it ensures that it maintains an effective warning posture after landing. Because of the three side display sections 140 and the independent base structure 150, the technical problems of existing warning devices being prone to tipping over and having limited visibility after deployment are solved, thus achieving a comprehensive and highly stable road warning effect, especially suitable for automatic emergency response scenarios after sudden situations involving high-speed vehicles.

[0095] refer to Figure 1 and Figure 2 In some embodiments, the folding mechanism 110 may include a first push rod 111, a second push rod 112, a third push rod 113, and a first hinge 114.

[0096] The first push rod 111 may include a first end 1111 and a second end 1112, the second push rod 112 may include a third end 1121 and a fourth end 1122, and the third push rod 113 may include a fifth end 1131 and a sixth end 1132.

[0097] The first hinge 114 is used to connect the first end 1111, the third end 1121 and the fifth end 1131 to each other so that the first push rod 111, the second push rod 112 and the third push rod 113 are folded or unfolded about the first hinge 114 to form three side display sections 140.

[0098] Each top rod has two ends: for example, the first end 1111 of the first top rod 111 connects to the first hinge 114, while the second end 1112 extends to the distal end to form an edge of the side display section 140; similarly, the third end 1121 of the second top rod 112 connects to the first hinge 114, and the fourth end 1122 extends outward; the fifth end 1131 of the third top rod 113 connects to the hinge, and the sixth end 1132 is a free-extending end. This design ensures that each top rod can stably support a side display surface covered by a reflective layer 120 when in the unfolded state.

[0099] The first hinge 114 adopts a multi-arm pivot structure, with a shared pivot or ball joint inside, allowing the three push rods to rotate relative to each other at the same pivot point. This hinge can be fixed to the vicinity of the outlet 212 of the cylinder 210 or other mounting base by riveting, threading, or integral molding, serving as the starting fulcrum of the entire folding mechanism 110. When the warning sign 100 is compressed and stored inside the ejection cylinder 210, the three push rods retract inward around the first hinge 114, forming a compact folded state; once the ejection is initiated, under the thrust of the elastic unit 220, the push rods move outward with inertia, and the energy stored in the preset return spring or torsion spring is released, driving the three rods to unfold synchronously until they reach the predetermined angle position, forming a stable three-dimensional configuration.

[0100] The connection between each top rod and the first hinge 114 can be a sliding fit with a limiting buckle, or a damping element can be set to adjust the unfolding speed to prevent structural impact damage due to excessive unfolding. In addition, the hinge part can also integrate a limiting structure, such as a stop boss or an angle limiting groove, to limit the maximum unfolding angle and ensure that the three side display sections 140 ultimately maintain a 120° included angle distribution, achieving a uniform radial visual effect.

[0101] Through the above technical solution, this application achieves the automatic conversion process of the warning sign 100 from folding to unfolding without the need for external power intervention, relying on a mechanical linkage structure. Because of the design of three top rods sharing a single first hinge 114, the multiple side display sections 140 can be subjected to balanced forces and move in a coordinated manner during launch, solving the problems of jamming and asynchrony that easily occur in traditional multi-part independent folding, and improving the reliability and response speed of the unfolding action. At the same time, this structure simplifies the assembly process, reduces the number of connecting parts, helps reduce manufacturing costs, and improves the overall durability and vibration resistance of the structure, making it suitable for applications in vehicle environments with frequent vibrations and sudden impacts.

[0102] refer to Figure 1 and Figure 2 In some embodiments, the folding mechanism 110 may further include a first folding strut 115, a second folding strut 116, and a third folding strut.

[0103] The first folding support rod 115 is rotatably connected at one end to the second end 1112 and at the other end to the fourth end 1122, so that it can unfold and support the second end 1112 and the fourth end 1122 when the folding mechanism 110 is unfolded.

[0104] The second folding strut 116 is rotatably connected at one end to the fourth end 1122 and at the other end to the sixth end 1132, so that it can unfold and support the fourth end 1122 and the sixth end 1132 when the folding mechanism 110 is unfolded.

[0105] One end of the third folding strut is rotatably connected to the sixth end 1132, and the other end is rotatably connected to the first end 1111, so that it can unfold and support the sixth end 1132 and the first end 1111 when the folding mechanism 110 unfolds.

[0106] The first folding support rod 115, the second folding support rod 116, and the third folding support rod together form the base structure 150.

[0107] One end of the first folding support rod 115 is rotatably connected to the second end 1112 of the first top rod 111, and the other end is rotatably connected to the fourth end 1122 of the second top rod 112. This rotatable connection can adopt a hinge pin structure, allowing the support rod to rotate relative to the top rod, adapting to spatial changes in both folded and unfolded states. In the folded state, the first folding support rod 115 folds and collapses with the overall structure, reducing its volume and facilitating its placement within the cylinder 210. When it begins to unfold after being ejected, as the angle between the first top rod 111 and the second top rod 112 increases, the first folding support rod 115 is gradually stretched and unfolded until it reaches its limit position and forms a rigid support. The support rod can be made of lightweight, high-strength materials, such as aluminum alloy or carbon fiber composite materials, which meets mechanical performance requirements while controlling the overall weight. Optionally, a return spring can be integrated inside the first folding support rod 115 to assist it in quickly reaching its final position during unfolding.

[0108] Similarly, one end of the second folding strut 116 is rotatably connected to the fourth end 1122, and the other end is rotatably connected to the sixth end 1132, which is the free end connecting the second top rod 112 and the third top rod 113. Its connection method and unfolding mechanism are the same as those of the first folding strut 115, both relying on the relative motion between the top rods to drive the struts to unfold.

[0109] The third folding strut connects the sixth end 1132 with the first end 1111, that is, the free ends of the third top rod 113 and the first top rod 111, completing the construction of the triangular closed-loop structure. The three folding struts—the first, second, and third folding struts—when fully unfolded, together form a planar structure that is approximately equilateral or isosceles triangle, serving as the base structure 150 of the entire warning sign 100.

[0110] The base structure 150 is not an independent component, but rather a bearing surface naturally formed by the support rods during the unfolding process, exhibiting a "dynamic forming" characteristic. Since the three top rods converge at a single point via the first hinge 114 (i.e., the first end 1111, the third end 1121, and the fifth end 1131 are hinged together), their unfolding trajectory is radial, driving the three support rods to extend outward synchronously, ultimately locking into a stable geometric configuration. This structural design fully utilizes the principle of geometric constraints, allowing the base to automatically form without additional assembly.

[0111] The rotational connection between each folding strut and the top strut forms a multi-link linkage mechanism, which automatically unfolds after the release of external force (such as ejection) by relying on inertia and elastic potential energy. The three sets of struts not only provide support but also serve to limit and orient the movement, ensuring that the unfolding process is controllable and reliable.

[0112] The base structure 150, formed by three folding struts, is located below the three side display sections 140, forming a cone-shaped support system that is larger at the bottom and smaller at the top, which significantly improves the anti-overturning ability.

[0113] Through the above technical solution, this application achieves the following: During the automatic ejection and deployment of the warning sign 100, the rotational connection between the three sets of folding support rods and the top rod allows the support rods to open synchronously with the main structure, ultimately forming a stable base structure 150 together with the first, second, and third folding support rods. This base structure 150 automatically forms without additional operation, solving the problems of traditional portable warning signs 100 requiring manual installation and being prone to tipping over, thus improving the reliability of the device in complex outdoor environments. Due to its compact structure, rapid response, and strong stability, it is particularly suitable for emergency warning scenarios involving automatic deployment after vehicle accidents.

[0114] refer to Figure 1 and Figure 2 In some embodiments, the first folding support 115 may include a first sub-rod 1151, a second sub-rod 1152, and a second hinge 1153. One end of the first sub-rod 1151 is rotatably connected to a first end 1111, and the other end is folded and connected to one end of the second sub-rod 1152 via the second hinge 1153. The other end of the second sub-rod 1152 is rotatably connected to a third end 1121.

[0115] The first sub-rod 1151 and the second sub-rod 1152 can be made of lightweight, high-strength materials, such as aluminum alloy or carbon fiber reinforced composite materials, which ensures structural rigidity while reducing overall weight and improves launch response speed. The second hinge 1153 can adopt a pin-type hinge structure, including a hinge body, a pivot, and a torsion spring element. The torsion spring has a preset rebound torque, which can actively drive the two sub-rods to tend to be collinear during deployment, improving deployment reliability.

[0116] One end of the first sub-rod 1151 is rotatably connected to the first end 1111 of the first top rod 111, and can be assembled by a U-shaped fork arm and a pin, allowing it to swing around a fixed axis during unfolding. Similarly, the other end of the second sub-rod 1152 is also rotatably connected to the third end 1121 of the second top rod 112, ensuring matching degrees of freedom of movement. The second hinge 1153 in the middle serves as a secondary folding point, giving the entire support rod a dual folding capability—not only can it fold along with the overall frame when the top rod is retracted, but it also further reduces its space occupation in the length direction.

[0117] The components work in concert: When the folding mechanism 110 is ejected from the cylinder 210, as the first push rod 111, the second push rod 112, and the third push rod 113 gradually unfold under the action of the first hinge 114, the three side display sections 140 begin to separate. At this time, the first folding support rod 115 is pulled by the increased distance between the two end connection points, and the originally folded second hinge 1153 is stretched accordingly. The two sub-rods transition from a bent state to an approximately straight state, and finally, together with other folding support rods, they form a stable triangular base structure 150. This process does not require external power intervention and is completed automatically entirely by mechanical linkage and the release of elastic potential energy.

[0118] Through the above technical solution, this application achieves a highly integrated design of the support structure for the three-dimensional warning sign 100 within a limited installation space. Because a foldable second hinge 1153 is introduced in the middle of the support rod, the axial dimension of the first folding support rod 115 is significantly reduced in the folded state, making it easier to accommodate within the cylindrical housing in the rear overhang area of ​​the vehicle, thus solving the problem of limited space in the vehicle environment.

[0119] refer to Figure 1 and Figure 2 In some embodiments, the warning sign 100 may also include a light-emitting element disposed on the folding mechanism 110.

[0120] The light-emitting element can be a high-brightness LED, arranged on the surface or inside at least one side display section 140 of the folding mechanism 110, and can be distributed along each side to ensure all-around visibility. In a specific implementation, the light-emitting element can be integrated under the reflective layer 120 through a flexible circuit board, which does not affect the reflective performance and ensures uniform light transmission.

[0121] In some other embodiments, the warning sign 100 may also include a counterweight structure, with the first folding support rod 115, the second folding support rod 116 and the third folding support rod together forming a base structure 150, and the counterweight structure being disposed on the base structure 150.

[0122] The counterweight structure is housed within the base structure 150, which is formed by the first folding support rod 115, the second folding support rod 116, and the third folding support rod. Its material can be a metal block (such as lead, cast iron, or stainless steel), a high-density polymer, or a composite material, used to increase the base mass and lower the overall center of gravity. The counterweight structure can be designed as a single unit or in parts; for example, multiple small mass blocks can be embedded in the cavities of each folding support rod to optimize weight distribution. Furthermore, the base structure 150 itself can be constructed with a lightweight, high-strength aluminum alloy frame, covered with an engineering plastic shell, with internal space reserved for fixing the counterweight structure, balancing structural strength and ease of assembly.

[0123] Through the above technical solution, this application achieves automatic deployment of three-dimensional warning signs with active light emission and stable support capabilities without relying on manual intervention. Because of the light-emitting component, the problem of traditional reflective signs being invisible without external light source illumination is solved, thereby improving the warning effectiveness at night and in adverse weather conditions. Furthermore, the counterweight structure located within the base structure 150 enhances the overall structure's anti-tipping performance, effectively coping with complex outdoor airflow environments and ensuring the stability of the warning device after landing.

[0124] This application also provides a vehicle, which may include a vehicle body and the warning device as described above.

[0125] This application achieves deep integration of an automatic ejector warning device into the entire vehicle system. Because the warning device is integrated with the vehicle body, there is no need for drivers and passengers to manually place a traditional triangular warning sign 100, avoiding the risk of secondary accidents. Furthermore, the entire deployment process can be completed within seconds of an accident, far faster than manual operation, significantly improving emergency response efficiency.

[0126] In some embodiments, the vehicle may be a gasoline-powered vehicle, or it may be a new energy vehicle, such as a pure electric vehicle (PEV / BEV), a range-extended electric vehicle (REEV), a hybrid electric vehicle (HEV), or a fuel cell electric vehicle. The vehicle may also be any vehicle equipped with a battery.

[0127] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made based on the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A warning device, characterized in that, include: The warning sign (100) includes a folding mechanism (110) and a reflective layer (120). When the folding mechanism (110) is in the unfolded state, it has a tetrahedral structure. The reflective layer (120) covers the outer surface of the folding mechanism (110) and has a warning sign (130) on the reflective layer (120). The ejection mechanism (200) includes: A cylindrical body (210) having a receiving cavity (211), the cylindrical body (210) being disposed on a vehicle body; An elastic unit (220) is disposed inside the cylinder (210), and the warning sign (100) is folded and disposed inside the cylinder (210) and faces the outlet (212) of the cylinder (210) relative to the elastic unit (220); A switch unit (230) is disposed on the cylinder (210). The switch unit (230) is used to control the elastic unit (220) to pop out and unfold the folded warning sign (100) toward the outside of the vehicle body.

2. The warning device according to claim 1, characterized in that, The switching unit (230) includes: A control structure (231) is disposed on the outside of the cylinder (210); The connector (232) is connected at one end to the control structure (231) and at the other end passes through the cylinder (210) and is inserted into the elastic unit (220) to limit the displacement of the elastic unit (220); the connector (232) is also used to move outward from the cylinder (210) under the control of the control structure (231) to release the restriction on the elastic unit (220).

3. The warning device according to claim 2, characterized in that, The control structure (231) includes: An acceleration sensor is used to acquire acceleration data of the vehicle body; A control unit is used to receive and process the acceleration data, and control the connector (232) to release the restriction on the elastic unit (220) when the acceleration data reaches a first critical value; A positioning system is electrically connected to the control unit, which is used to control the positioning system to send positioning information to the outside when the acceleration data reaches a first critical value.

4. The warning device according to claim 2, characterized in that, The elastic unit (220) includes: A compression spring (221) has one end connected to the inner bottom wall of the receiving cavity (211) and the other end facing the outlet (212) of the cylinder (210); A pressure plate (222) is disposed at one end of the compression spring (221) facing the outlet (212), and the side of the pressure plate (222) facing away from the compression spring (221) is used to support the warning sign (100); The end of the connector (232) facing away from the control structure (231) passes through the cylinder (210) and is inserted into the pressure plate (222).

5. The warning device according to claim 1, characterized in that, The folding mechanism (110) includes three side display sections (140) and a base structure (150); The reflective layer (120) covers at least three of the side display sections (140), and the base structure (150) supports the three side display sections (140).

6. The warning device according to claim 5, characterized in that, The folding mechanism (110) includes: The first push rod (111) includes a first end (1111) and a second end (1112); The second push rod (112) includes a third end (1121) and a fourth end (1122); The third push rod (113) includes the fifth end (1131) and the sixth end (1132); A first hinge (114) is used to connect the first end (1111), the third end (1121) and the fifth end (1131) to each other so that the first top rod (111), the second top rod (112) and the third top rod (113) are folded or unfolded about the first hinge (114) to form three side display sections (140).

7. The warning device according to claim 6, characterized in that, The folding mechanism (110) further includes: A first folding support rod (115) is rotatably connected at one end to the second end (1112) and at the other end to the fourth end (1122) so that it can unfold and support the second end (1112) and the fourth end (1122) when the folding mechanism (110) is unfolded. The second folding support rod (116) is rotatably connected at one end to the fourth end (1122) and at the other end to the sixth end (1132) so as to unfold and support the fourth end (1122) and the sixth end (1132) when the folding mechanism (110) is unfolded. The third folding support rod is rotatably connected at one end to the sixth end (1132) and at the other end to the first end (1111), so that it can be unfolded and support the sixth end (1132) and the first end (1111) when the folding mechanism (110) is unfolded. The first folding support rod (115), the second folding support rod (116), and the third folding support rod together form the base structure (150).

8. The warning device according to claim 7, characterized in that, The first folding strut (115) includes a first sub-strut (1151), a second sub-strut (1152), and a second hinge (1153); One end of the first sub-rod (1151) is rotatably connected to the first end (1111), and the other end is folded and connected to one end of the second sub-rod (1152) via the second hinge (1153). The other end of the second sub-rod (1152) is rotatably connected to the third end (1121).

9. The warning device according to claim 7, characterized in that, The warning sign (100) also includes a light-emitting element, which is disposed on the folding mechanism (110); And / or, The warning sign (100) also includes a counterweight structure; The first folding support rod (115), the second folding support rod (116), and the third folding support rod together form a base structure (150), and the counterweight structure is disposed on the base structure (150).

10. A vehicle, characterized in that, It includes the vehicle body and the warning device as described in any one of claims 1 to 9.

Images