Expressway wave-shaped guardrail docking mechanism with integrated collision sensing function

Abstract

The invention belongs to the technical field of expressway traffic safety facilities, and particularly relates to an expressway wave-shaped guardrail butt joint mechanism with an integrated collision sensing function, which comprises a wave-shaped guardrail body, an intelligent control system and a buffer mechanism, Q235 carbon structural steel is adopted and subjected to hot-dip galvanizing treatment, a butt joint is made of hard anodized aluminum alloy, and the collision sensing function is achieved. By matching with firm locking of an eccentric wheel lock catch, it is ensured that the butt joint part is resistant to impact and falling off, secondary accidents caused by guardrail disintegration during collision are avoided, a buffering mechanism in a cavity is made of elastic materials such as ethylene propylene diene monomer, collision energy is efficiently absorbed through a buffering plate and a buffering column, and rigid impact damage to a vehicle is reduced; the intelligent control system integrates a high-precision acceleration sensor and a high-sensitivity piezoelectric sensor, can instantly capture a collision signal, triggers an audible and visual alarm through a 4G / 5G dual-mode communication module, synchronously reports GPS / Beidou positioning information, and provides dual warning for a driver and passengers and rear vehicles.

Description

Technical Field

[0001] This invention relates to the field of highway traffic safety facilities technology, specifically a highway corrugated guardrail docking mechanism with integrated collision sensing function. Background Technology

[0002] Corrugated guardrails are indispensable safety protection facilities in traffic scenarios such as highways and municipal roads. They are named for their continuous corrugated structure. Their core function is to absorb collision energy through their own deformation, preventing vehicles from running off the road or into oncoming lanes, thus reducing the risk of traffic accident injuries and fatalities. The main body consists of corrugated steel plates, posts, anti-blocking blocks, and connectors. In terms of protection principle, when a vehicle hits the guardrail, the curved structure of the corrugated panel disperses the impact force. At the same time, the elastic deformation of the posts and the buffering effect of the anti-blocking blocks prolong the collision contact time, reduce the instantaneous impact force on the vehicle and its occupants, and guide the vehicle to decelerate smoothly and return to its normal driving trajectory. They are widely used on highways, rural roads, both sides of bridges, and dangerous road sections. They are the first line of defense for road safety protection. With their advantages of convenient installation, low maintenance costs, and significant protective effects, they have become one of the core facilities for ensuring traffic safety.

[0003] Currently, existing corrugated guardrail connection structures suffer from the following technical defects: First, the internal structure of the connecting sleeve is poorly adapted to the shape of the guardrail's troughs, resulting in excessively large connection gaps. This makes the guardrail prone to detachment or displacement during collisions, affecting the protective effect. Second, the energy dissipation mechanism is poorly designed, often using only metal baffles or simple deformed structures, failing to absorb collision energy efficiently and effectively. This results in the impact force being transferred to the vehicle body during a collision, increasing the risk of personal injury. Third, installation relies heavily on bolt tightening, requiring multiple people to work together with specialized tools, leading to low installation efficiency and inconvenient maintenance and disassembly. Fourth, there is a lack of effective accident monitoring and location functions. After a vehicle collides with the guardrail, the accident must be detected by passing vehicles' alarms or manual patrols, making rapid response and rescue difficult and potentially delaying the optimal rescue opportunity. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a highway corrugated guardrail docking mechanism with integrated collision sensing function. This mechanism solves the following technical defects of existing corrugated guardrail docking structures: First, the poor compatibility between the internal structure of the connecting sleeve and the shape of the guardrail's troughs leads to excessively large connection gaps, making the guardrail prone to detachment or displacement during collisions, thus affecting the protective effect. Second, the energy dissipation mechanism is poorly designed, often using only metal baffles or simple deformed structures, failing to absorb collision energy in an orderly and efficient manner. This results in the impact force being transmitted to the vehicle body during a collision, increasing the risk of personal injury. Third, installation methods often rely on bolt tightening, requiring multiple people to operate with specialized tools, leading to low installation efficiency and inconvenient disassembly and maintenance. Fourth, it lacks effective accident monitoring and location functions. After a vehicle collides with the guardrail, it relies on passing vehicles to trigger alarms or manual patrols to discover the accident, making rapid response and rescue difficult and potentially delaying the optimal rescue opportunity.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a wave-shaped guardrail body, an intelligent control system, and a buffer mechanism. The wave-shaped guardrail body has a connecting joint sleeved on its exterior. Two sets of connecting holes are formed on the outer surface of the wave-shaped guardrail body. Two positioning holes are formed on the outer surface of the wave-shaped guardrail body, one of which has a positioning pin inside. An eccentric wheel lock is installed outside the positioning pin. An audible and visual alarm is installed on the outer surface of the connecting joint. Two reflective strips are connected to the outer surface of the connecting joint. A cavity is formed on the right side of the wave-shaped guardrail body. The buffer mechanism is embedded inside the cavity. The intelligent control system includes an accelerometer, a piezoelectric sensor, a GPS / BeiDou positioning chip, a central processing unit, a wireless communication module, and a power module. The buffer mechanism includes a buffer plate and two sets of buffer posts.

[0006] As a preferred embodiment of the present invention, the outer surface of the wave-shaped guardrail body is provided with two sets of circular holes, and the outer surface of the connector is provided with two sets of limiting holes.

[0007] As a preferred embodiment of the present invention, the ends of the two sets of buffer columns that are close to each other are connected to a buffer plate, and the front side of the buffer plate is provided with a groove.

[0008] As a preferred embodiment of the present invention, the intelligent control system is installed inside the groove, and the buffer plate and each buffer column are made of EPDM rubber, chloroprene rubber or styrene-butadiene rubber.

[0009] In a preferred embodiment of the present invention, the accelerometer, piezoelectric sensor, and GPS / BeiDou positioning chip are all electrically connected to the central processing unit via wires. The central processing unit is electrically connected to the wireless communication module via wires, and the wireless communication module is connected to the audible and visual alarm signal.

[0010] As a preferred embodiment of the present invention, the eccentric wheel lock consists of a wheel body and an operating handle, and the eccentricity of the wheel body is 5-8mm. The audible and visual alarm consists of a warning light and a buzzer.

[0011] As a preferred embodiment of the present invention, the reflective strip is connected to the connector by high-strength double-sided adhesive, and the surface of the reflective strip is provided with a microprism structure.

[0012] As a preferred embodiment of the present invention, the accelerometer has a measurement range of -500g to +500g and a measurement accuracy of ±0.5g, and the piezoelectric sensor has a sensitivity of 10-20pC / N.

[0013] As a preferred embodiment of the present invention, the wireless communication module supports 4G / 5G dual-mode communication and has a built-in Beidou short message module, and the wave guardrail body is made of Q235 carbon structural steel and the surface is hot-dip galvanized.

[0014] As a preferred embodiment of the present invention, the connector is made of aluminum alloy and its surface is subjected to hard anodizing treatment, with an oxide film thickness of 15-20μm and a hardness of not less than HV300.

[0015] Compared with the prior art, the present invention provides a highway corrugated guardrail docking mechanism with integrated collision sensing function, which has the following beneficial effects: 1. This highway corrugated guardrail docking mechanism with integrated collision perception function uses Q235 carbon structural steel with hot-dip galvanizing treatment. The joint is made of hard anodized aluminum alloy, and the eccentric wheel lock provides a firm lock, ensuring that the docking part is impact-resistant and prevents it from falling off, thus avoiding secondary accidents caused by guardrail disintegration during a collision. The buffer mechanism inside the cavity uses elastic materials such as EPDM rubber, which efficiently absorbs collision energy through buffer plates and buffer columns, reducing rigid impact damage to vehicles. The intelligent control system integrates a high-precision acceleration sensor and a high-sensitivity piezoelectric sensor, which can instantly capture collision signals and trigger an audible and visual alarm through a 4G / 5G dual-mode communication module, while simultaneously reporting GPS / BeiDou positioning information, providing dual warnings for drivers and passengers and vehicles behind, significantly reducing the risk of accident injury.

[0016] 2. This highway corrugated guardrail docking mechanism with integrated collision sensing function achieves rapid and accurate docking of the guardrail through the cooperation of positioning holes and positioning pins. The operating handle design of the eccentric wheel lock simplifies the disassembly and assembly process, allowing maintenance to be completed without complicated tools. The reflective strip adopts a microprism structure and is connected with high-strength double-sided adhesive, providing strong day and night visibility and reducing collision risks from the source. The hot-dip galvanizing and hard anodizing treatment of the component surface gives it excellent corrosion resistance and extends its service life. The wireless communication module has a built-in Beidou short message function, ensuring accurate transmission of guardrail status and accident location even in extreme environments, helping management departments to quickly dispatch repair resources and shorten road closure time. The material combination of aluminum alloy joint and Q235 steel guardrail ensures strength while achieving lightweight, reducing transportation and construction labor costs. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a rear view of the present invention; Figure 3 This is a side view of the present invention; Figure 4 This is a three-dimensional structural diagram of the connector in this invention; Figure 5 This is a three-dimensional structural diagram of the buffer mechanism in this invention; Figure 6 This is a system diagram of the present invention.

[0018] In the diagram: 1. Waveform guardrail body; 2. Intelligent control system; 201. Accelerometer; 202. Piezoelectric sensor; 203. GPS / BeiDou positioning chip; 204. Central processing unit; 205. Wireless communication module; 206. Power module; 3. Connecting hole; 4. Connector; 5. Positioning hole; 6. Positioning pin; 7. Eccentric wheel lock; 8. Audible and visual alarm; 9. Buffer mechanism; 901. Buffer plate; 902. Buffer column; 903. Groove; 10. Reflective strip; 11. Cavity; 12. Round hole; 13. Limiting hole. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example Please see Figure 1-6This implementation plan includes a corrugated guardrail body 1, an intelligent control system 2, and a buffer mechanism 9. The corrugated guardrail body 1 is fitted with a connector 4. Two sets of connection holes 3 are formed on the outer surface of the corrugated guardrail body 1. Two positioning holes 5 are formed on the outer surface of the corrugated guardrail body 1, with a positioning pin 6 inside one of the positioning holes 5. An eccentric wheel lock 7 is installed on the outside of the positioning pin 6. An audible and visual alarm 8 is installed on the outer surface of the connector 4. Two reflective strips 10 are connected to the outer surface of the connector 4. A cavity 11 is formed on the right side of the corrugated guardrail body 1, and the buffer mechanism 9 is embedded inside the cavity 11. The intelligent control system 2 includes an acceleration sensor 201, a piezoelectric sensor 202, a GPS / BeiDou positioning chip 203, a central processing unit 204, a wireless communication module 205, and a power module 206. The buffer mechanism 9 includes a buffer plate 901 and two sets of buffer pillars 902, which can provide support for emergency repair and dispatch when a vehicle collision occurs, achieving automated collaborative operation of collision protection, signal perception, and warning reporting throughout the entire process.

[0021] In this embodiment, two sets of circular holes 12 are provided on the outer surface of the wave-shaped guardrail body 1, and two sets of limiting holes 13 are provided on the outer surface of the connector 4. The ends of the two sets of buffer posts 902 that are close to each other are connected to the buffer plate 901. The front side of the buffer plate 901 is provided with a groove 903. The intelligent control system 2 is installed inside the groove 903. The buffer plate 901 and each buffer post 902 are made of EPDM rubber, neoprene rubber or styrene-butadiene rubber. The acceleration sensor 201, the piezoelectric sensor 202 and the GPS / BeiDou positioning chip 203 are all electrically connected to the central processing unit 204 through wires. The central processing unit 204 is electrically connected to the wireless communication module 205 through wires. The wireless communication module 205 is connected to the sound and light alarm 8. This not only makes the buffering effect of the equipment better, but also enables the equipment to automatically alarm when it is hit by a collision.

[0022] In this embodiment, the eccentric wheel lock 7 consists of a wheel body and an operating handle, with an eccentricity of 5-8mm. The audible and visual alarm 8 consists of a warning light and a buzzer. The reflective strip 10 is connected to the connector 4 with high-strength double-sided adhesive, and the surface of the reflective strip 10 has a microprism structure. The acceleration sensor 201 has a measurement range of -500g to +500g and a measurement accuracy of ±0.5g. The piezoelectric sensor 202 has a sensitivity of 10-20pC / N. The wireless communication module 205 supports 4G / 5G dual-mode communication and has a built-in Beidou short message module. The wave-shaped guardrail body 1 is made of Q235 carbon structural steel and its surface is hot-dip galvanized. The connector 4 is made of aluminum alloy and its surface is hard anodized with an oxide film thickness of 15-20μm and a hardness of not less than HV300. This not only enables the device to effectively warn vehicles but also significantly increases the strength of the connector 4.

[0023] The working principle and usage process of this invention are as follows: First, the positioning holes 5 and positioning pins 6 of the wave guardrail body 1 are precisely aligned, and the adjacent guardrail bodies are fitted into the joint 4. The eccentric wheel lock 7 is rotated by the operating handle with an eccentricity of 5-8mm to achieve a firm lock of the docking part. With the auxiliary fixing of the connecting hole 3 and the limiting hole 13, the structural stability of the guardrail after splicing is ensured. The microprism structure reflective strip 10 on the surface of the connector 4 enhances the visibility of the guardrail through reflection in both day and night environments, thus mitigating the risk of collision in advance. In the event of a collision, the impact force transmitted by the corrugated guardrail body 1 first acts on the buffer mechanism 9 within the cavity 11. The buffer column 902 and the buffer plate 901 absorb the collision energy through deformation, reducing the damage caused by rigid impact. Simultaneously, the intelligent control system 2 within the groove 903 activates its sensing function. The accelerometer 201 captures the collision acceleration signal, and the piezoelectric sensor 202 detects the collision pressure data. Both transmit the signals synchronously to the central processing unit 204. After analyzing and judging the signals, the central processing unit 204 triggers the audible and visual alarm 8 on the connector 4 via the wireless communication module 205 to issue an immediate warning to surrounding vehicles and personnel. On the other hand, combined with the precise location information obtained by the GPS / BeiDou positioning chip 203, the system reports the accident location, collision intensity, and other data to the management platform via 4G / 5G dual-mode communication or the BeiDou short message module, providing support for emergency repair scheduling and rescue.

[0024] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A highway corrugated guardrail docking mechanism with integrated collision sensing function, characterized in that: The system includes a corrugated guardrail body (1), an intelligent control system (2), and a buffer mechanism (9). A connector (4) is fitted onto the outside of the corrugated guardrail body (1). Two sets of connecting holes (3) are opened on the outer surface of the corrugated guardrail body (1). Two positioning holes (5) are opened on the outer surface of the corrugated guardrail body (1). A positioning pin (6) is provided inside one of the positioning holes (5). An eccentric wheel lock (7) is installed on the outside of the positioning pin (6). An audible and visual alarm (8) is installed on the outer surface of the connector (4). Two reflective strips (10) are connected to the outer surface of the head (4). A cavity (11) is opened on the right side of the wave guardrail body (1). The buffer mechanism (9) is embedded in the cavity (11). The intelligent control system (2) includes an acceleration sensor (201), a piezoelectric sensor (202), a GPS / Beidou positioning chip (203), a central processing unit (204), a wireless communication module (205), and a power module (206). The buffer mechanism (9) includes a buffer plate (901) and two sets of buffer columns (902).

2. The highway corrugated guardrail docking mechanism with integrated collision sensing function according to claim 1, characterized in that: The outer surface of the wave-shaped guardrail body (1) is provided with two sets of round holes (12), and the outer surface of the connector (4) is provided with two sets of limiting holes (13).

3. The highway corrugated guardrail docking mechanism with integrated collision sensing function according to claim 1, characterized in that: The two sets of buffer columns (902) are connected to a buffer plate (901) at their closest ends. The buffer plate (901) has a groove (903) on its front side.

4. A highway corrugated guardrail docking mechanism with integrated collision sensing function according to claim 3, characterized in that: The intelligent control system (2) is installed inside the groove (903), and the buffer plate (901) and each buffer column (902) are made of EPDM rubber, chloroprene rubber or styrene-butadiene rubber.

5. A highway corrugated guardrail docking mechanism with integrated collision sensing function according to claim 1, characterized in that: The accelerometer (201), piezoelectric sensor (202) and GPS / BeiDou positioning chip (203) are all electrically connected to the central processing unit (204) via wires. The central processing unit (204) is electrically connected to the wireless communication module (205) via wires. The wireless communication module (205) is connected to the audible and visual alarm (8) via signal.

6. The highway corrugated guardrail docking mechanism with integrated collision sensing function according to claim 1, characterized in that: The eccentric wheel lock (7) consists of a wheel body and an operating handle, and the eccentricity of the wheel body is 5-8mm. The audible and visual alarm (8) consists of a warning light and a buzzer.

7. A highway corrugated guardrail docking mechanism with integrated collision sensing function according to claim 1, characterized in that: The reflective strip (10) is connected to the connector (4) by high-strength double-sided adhesive, and the surface of the reflective strip (10) is provided with a microprism structure.

8. A highway corrugated guardrail docking mechanism with integrated collision sensing function according to claim 1, characterized in that: The accelerometer (201) has a measurement range of -500g to +500g and a measurement accuracy of ±0.5g. The piezoelectric sensor (202) has a sensitivity of 10-20pC / N.

9. A highway corrugated guardrail docking mechanism with integrated collision sensing function according to claim 1, characterized in that: The wireless communication module (205) supports 4G / 5G dual-mode communication and has a built-in Beidou short message module. The waveform guardrail body (1) is made of Q235 carbon structural steel and its surface is hot-dip galvanized.

10. A highway corrugated guardrail docking mechanism with integrated collision sensing function according to claim 1, characterized in that: The connector (4) is made of aluminum alloy and its surface is hard anodized. The oxide film thickness is 15-20μm and the hardness is not less than HV300.

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