A road accident enhanced warning device

Abstract

The utility model discloses a road accident enhanced warning device, including road portal, flexible graphic warning sign and turnover drive arrangement, flexible graphic warning sign includes a plurality of narrow strip shape flexible strip, a plurality of narrow strip shape flexible strip interval setting along the road portal extension direction, and the narrow strip shape flexible strip front and back are all provided with graphic warning sign, and can change warning graphics through rotating narrow strip shape flexible strip, and flexible graphic warning sign can move from the standby position to the working position through horizontal opening and closing mechanism or vertical lifting mechanism, turnover drive arrangement sets up on the road portal, and is connected with all narrow strip shape flexible strip's top, and turnover drive arrangement is used for driving all narrow strip shape flexible strip to rotate simultaneously to change warning graphics. This road accident enhanced warning device can switch warning information dynamically, and the manufacturing cost is low, and the visibility is good, and can effectively reduce the damage to the vehicle and itself when the unexpected collision.

Description

Technical Field

[0001] This utility model relates to the field of road safety equipment technology, specifically to a road accident enhanced warning device. Background Technology

[0002] When a road traffic accident occurs, especially on a highway or expressway, it is necessary to quickly and effectively warn vehicles behind to prevent secondary accidents. Currently, commonly used warning devices on roads mainly include fixed signs and variable message signs (such as LED displays).

[0003] Existing fixed signs (such as "Accident Ahead, Slow Down") have the advantages of low cost and simple structure, but the information they convey is fixed. They cannot dynamically update the information at different stages of accident handling (e.g., displaying "Accident Ahead" during accident handling and "Road Open" after handling), resulting in poor flexibility.

[0004] Existing variable message signs, especially large electronic displays, while capable of dynamically displaying different information, are expensive to manufacture and maintain, consume a lot of power, and may have poor visibility under direct sunlight. Furthermore, these two traditional warning devices are typically rigid structures, making them highly susceptible to severe damage to the vehicle upon impact, while also being completely destroyed, resulting in high repair or replacement costs. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the technical problem to be solved by this utility model is to provide a road accident enhanced warning device that can dynamically switch warning information, and has low manufacturing cost, good visibility, and can effectively reduce damage to vehicles and itself in the event of an accidental collision.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a road accident enhanced warning device, comprising: Road gantry; A flexible graphic warning sign, comprising multiple narrow flexible strips spaced apart along the extension direction of the road gantry, with graphic warning signs on both the front and back of each strip. The warning graphics can be changed by rotating the strips. The flexible graphic warning sign can be moved from a standby position to a working position via a horizontal opening / closing mechanism or a vertical lifting mechanism. A flip drive device is installed on the road gantry and connected to the top of all the narrow flexible strips. The flip drive device is used to simultaneously drive all the narrow flexible strips to rotate to change the warning graphics.

[0007] Furthermore, the flipping drive device includes a rotating shaft, driven gears, and a rotary drive mechanism. A rotating shaft is fixed to the top of each flexible strip, and a driven gear is fixedly sleeved on the rotating shaft. The rotary drive mechanism is connected to all the driven gears and can simultaneously drive all the driven gears to rotate at least 180°.

[0008] Furthermore, the rotary drive mechanism includes a telescopic power source, a drive rod, and a drive rack. The drive rod is slidably mounted on the road gantry and spaced apart along the extension direction of the road gantry. The telescopic power source is used to drive the drive rod along the extension direction of the road gantry. The drive rack is fixed on the drive rod and meshes with all the driven gears to simultaneously drive all the gears to rotate.

[0009] Furthermore, a first detachable connecting device is provided between each of the flexible strips, and the connection of the first detachable connecting device can be broken when it is impacted.

[0010] Furthermore, a flexible counterweight device is provided at the lower part of the flexible graphic warning sign. The flexible counterweight device is connected to the graphic warning sign by a second detachable connection device, which can be disconnected when impacted.

[0011] Furthermore, when a vertical lifting mechanism is used, the flexible graphic warning sign is normally rolled up on the road gantry, and is driven down by the vertical lifting mechanism during operation.

[0012] Furthermore, the vertical lifting mechanism includes a rotary power source, the road gantry includes two opposing support rods and a crossbeam that can rotatably be disposed between the two support rods, the rotary power source is connected to the crossbeam and is used to drive the crossbeam to rotate, and the flipping drive device and the flexible graphic warning sign are both disposed on the crossbeam.

[0013] Furthermore, the narrow flexible strip is a hollow strip, and an air inlet is provided on the narrow flexible strip that can communicate with an external inflation device.

[0014] Furthermore, it also includes a smoke detector, which is installed behind or on the road gantry and emits smoke backwards when activated.

[0015] The beneficial effects of this utility model are: The aforementioned enhanced road accident warning device has at least the following advantages: 1. Since the flexible graphic warning sign is composed of multiple narrow flexible strips with different graphics printed on both sides, and is driven to rotate as a whole by a flipping drive device, the device can quickly and synchronously switch the warning content displayed to the driver according to the progress of the accident scene handling, which greatly improves the timeliness and flexibility of the warning information.

[0016] 2. Multiple narrow, flexible strips hang naturally after unfolding, forming a continuous, large-area warning curtain. This curtain-like visual presentation, compared to isolated, small-sized traditional signs, can capture the driver's attention from a greater distance, providing a stronger visual impact and thus more effectively serving as a warning.

[0017] 3. By incorporating a horizontal opening and closing mechanism or a vertical lifting mechanism, flexible graphic warning signs can move between a "standby position" and a "working position." During non-accident periods, the device can be stored in a standby position (e.g., rolled up or folded up) to avoid visual interference or physical obstruction to normal traffic. It can be quickly deployed only when needed, achieving "on-demand activation" and improving the utilization efficiency of road space.

[0018] 4. The core warning component adopts a "flexible" strip design. In the event of an unavoidable collision, the flexible strip can deform, bend, or even detach, rather than impacting the vehicle hard like a rigid sign. This significantly reduces the damage to the colliding vehicle and also prevents the main body of the device (road gantry and drive mechanism) from being pulled or destroyed, reducing accident losses and device maintenance costs, and improving overall safety and reliability. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0020] Figure 1 A schematic diagram showing the status of a road accident enhanced warning device provided in an embodiment of this utility model; Figure 2 for Figure 1 The diagram shown illustrates another state of the road accident warning device. Figure 3 for Figure 1 The diagram shown is a side view of the enhanced road accident warning device. Figure 4 for Figure 1 The diagram shows the vertical lifting of the tilt drive device and the vertical lifting mechanism in the road accident enhanced warning device shown. Figure 5 for Figure 4A schematic diagram at point A in the middle; Figure label: 100. Road gantry; 200. Flexible graphic warning sign; 300. Tilting drive device; 310. Rotating shaft; 320. Driven gear; 330. Rotary drive mechanism; 331. Telescopic power source; 332. Drive rod; 333. Drive rack; 400. First detachable connecting device; 500. Flexible counterweight device; 600. Vertical lifting mechanism; 700. Smoke detector; 800. Lighting lamp; 900. Audible and visual alarm. Detailed Implementation

[0021] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0022] Please see Figures 1 to 5 This utility model provides a road accident enhanced warning device, including a road gantry 100, a flexible graphic warning sign 200, and a flipping drive device 300.

[0023] Specifically, the road gantry 100 is installed across the road, providing a supporting foundation and installation space for other functional components.

[0024] The flexible graphic warning sign 200 comprises multiple narrow, flexible strips. These strips are arranged at regular intervals along the extension direction of the road gantry 100 (i.e., across the road), and hang naturally under their own weight, forming a conspicuous warning curtain. Different graphic warning signs are printed or attached to the front and back of each narrow, flexible strip; for example, one side may read "Accident Ahead" and the other "Stop."

[0025] The flexible graphic warning sign 200 can move from a standby position to a working position via a horizontal opening and closing mechanism or a vertical lifting mechanism 600; the standby position is a position away from the road and where vehicles can pass safely, and the working position is the position where the graphic warning sign can be fully exposed.

[0026] A tilt drive unit 300 is mounted on the road gantry 100 and mechanically connected to the top of all narrow flexible strips. The tilt drive unit 300 simultaneously rotates all the narrow flexible strips to change the warning text. When it is necessary to change the warning information displayed to the driver (e.g., after an accident has been resolved, changing "Accident Ahead" to "Stop"), the control system activates the tilt drive unit 300. This unit outputs torque to simultaneously drive all the narrow flexible strips to rotate around their suspension axes. Since the strips are marked on both sides, a 180-degree rotation achieves a complete information switch.

[0027] During non-accident periods, the device is in standby mode. The flexible graphic warning sign 200 can be moved from the standby position to the working position via a horizontal opening and closing mechanism or a vertical lifting mechanism 600. Afterward, the flip drive device 300 can operate normally to switch the graphics. The naturally drooping strips form a continuous visual barrier, which is more visually impactful than isolated signs and effectively attracts the driver's attention. At the same time, because the flexible graphic warning sign 200 is a flexible, narrow strip, it avoids the damage to the vehicle caused by traditional rigid flexible graphic warning signs 200, even when the driver is not braking.

[0028] In this embodiment, the tilting drive device 300 specifically includes a rotating shaft 310, driven gears 320, and a rotary drive mechanism 330. The top end of each flexible strip is fixed to an independent rotating shaft 310, which is rotatably supported on the gantry beam. A driven gear 320 is fixedly fitted onto each rotating shaft 310. The rotary drive mechanism 330 is connected to all driven gears 320 and can simultaneously drive the driven gears 320 to rotate at least 180°.

[0029] In this embodiment, the rotary drive mechanism 330 includes a telescopic power source 331 (such as a cylinder, hydraulic cylinder, or electric push rod), a drive rod 332, and a drive rack 333. The drive rod 332 is slidably mounted on the road gantry 100 via a structure such as a slider or guide rail, with its sliding direction parallel to the extension direction of the gantry. The cylinder body of the telescopic power source 331 is fixed to the gantry, and the end of its piston rod is connected to the drive rod 332. A long drive rack 333 is fixed to the drive rod 332 and simultaneously meshes with the driven gears 320 at the tips of all the narrow strip-shaped flexible strips.

[0030] When the strip needs to be flipped, the telescopic power source 331 activates, pushing or pulling the drive rod 332 to move linearly. The drive rod 332 drives the drive rack 333 on it to move synchronously. During the movement, the drive rack 333 engages and drives all driven gears 320 to rotate, thereby driving all rotating shafts 310 and the flexible strip to rotate together. By controlling the stroke of the telescopic power source 331, the rotation of the gears can be precisely controlled to 180 degrees or the desired angle. The single drive rack 333 ensures that all driven gears 320 obtain exactly the same linear displacement, thereby achieving absolute synchronous flipping of all warning strips and a uniform visual effect.

[0031] In a preferred embodiment, a first detachable connecting device 400 is provided between each flexible strip, and the first detachable connecting device 400 can be disconnected when it is impacted, for example, by Velcro or a fragile connecting piece.

[0032] The flexible graphic warning sign 200 has a flexible counterweight device 500 at its lower part. The flexible counterweight device 500 is connected to the graphic warning sign by a second detachable connecting device, which can be broken upon impact, such as a small rubber ball filled with water or sand. The second detachable connecting device can also be made of Velcro or a fragile connector that is easy to break.

[0033] When an oversized or overweight vehicle or cargo accidentally strikes the warning device, the impact force first acts on the flexible strips. The detachable connections between the strips will break first, dispersing the strips and reducing resistance. Simultaneously, the connection between the bottom counterweight and the strips will also detach, causing the counterweight to fall and allowing the entire warning sign to detach smoothly, maximizing its ability to avoid impact. This avoids damage to the gantry or drive mechanism caused by rigid connections, reducing maintenance costs and downtime. It also prevents the device from being dragged and causing a larger accident. Furthermore, even if part of the strips detach, the remaining unaffected strips can still provide basic warning functionality.

[0034] In addition, the narrow flexible strip can be configured as a hollow structure with an air inlet that connects to an external inflation device. When the environment is harsh or the wind is strong, air can be injected into the narrow flexible strip to increase its strength and prevent it from curling or deforming.

[0035] In this embodiment, the flexible graphic warning sign 200 can be driven by the vertical lifting mechanism 600 to move from a rolled-up, stored standby position to a drooping, unfolded working position. The flexible graphic warning sign 200 is normally rolled up on the road gantry 100, and is lowered by the vertical lifting mechanism 600 during operation.

[0036] The vertical lifting mechanism 600 includes a rotary power source, the road gantry 100 includes two opposing support rods and a rotatable crossbeam disposed between the two support rods, the rotary power source is connected to the crossbeam and is used to drive the crossbeam to rotate, the flipping drive device 300 and the flexible graphic warning sign 200 are both disposed on the crossbeam.

[0037] During non-accident periods, the device is in standby mode. In this state, the rotary power source drives the crossbeam to rotate, tightly winding all the flexible strips around it like a roller blind, neatly concealing them and reducing weathering and aging. When an accident occurs requiring a warning, the rotary power source reverses its direction, driving the crossbeam to release the flexible strips, allowing them to hang naturally to their working position under gravity. Afterward, the tilting drive 300 can then operate normally to switch between graphics and text.

[0038] In practical implementation, a smoke detector 700 can be installed on or behind the road gantry 100, which emits smoke upon activation to serve as a warning. Additionally, a control light 800 can be installed on the road gantry 100 to illuminate and point towards the flexible graphic warning device, making it easier for drivers to see the warning content. Furthermore, an audible and visual alarm 900 and a directional speaker can be installed on the road gantry 100. The audible and visual alarm 900 emits an audible and visual alarm signal in the event of an accident, while the directional speaker can play accident information and vehicle and pedestrian guidance information.

[0039] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A road accident enhanced warning device, characterized in that, include: Road gantry; A flexible graphic warning sign, comprising multiple narrow flexible strips spaced apart along the extension direction of the road gantry, with graphic warning signs on both the front and back of each strip. The warning graphics can be changed by rotating the strips. The flexible graphic warning sign can be moved from a standby position to a working position via a horizontal opening / closing mechanism or a vertical lifting mechanism. A flip drive device is installed on the road gantry and connected to the top of all the narrow flexible strips. The flip drive device is used to simultaneously drive all the narrow flexible strips to rotate to change the warning graphics.

2. The road accident enhanced warning device according to claim 1, characterized in that, The flipping drive device includes a rotating shaft, driven gears, and a rotary drive mechanism. A rotating shaft is fixed to the top of each flexible strip, and a driven gear is fixedly sleeved on the rotating shaft. The rotary drive mechanism is connected to all the driven gears and can drive all the driven gears to rotate at least 180° simultaneously.

3. The road accident enhanced warning device according to claim 2, characterized in that, The rotary drive mechanism includes a telescopic power source, a drive rod, and a drive rack. The drive rod is slidably mounted on the road gantry and spaced apart along the extension direction of the road gantry. The telescopic power source is used to drive the drive rod along the extension direction of the road gantry. The drive rack is fixed on the drive rod and meshes with all the driven gears to simultaneously drive all the gears to rotate.

4. The road accident enhanced warning device according to claim 2, characterized in that, Each of the flexible strips is provided with a first detachable connecting device, and the connection of the first detachable connecting device can be broken when it is impacted.

5. The road accident enhanced warning device according to claim 1, characterized in that, The flexible graphic warning sign is equipped with a flexible counterweight device at its lower part. The flexible counterweight device is connected to the graphic warning sign by a second detachable connection device, which can be disconnected when subjected to impact.

6. The road accident enhanced warning device according to claim 1, characterized in that, When a vertical lifting mechanism is used, the flexible graphic warning sign is normally rolled up on the road gantry and is lowered by the vertical lifting mechanism during operation.

7. The road accident enhanced warning device according to claim 6, characterized in that, The vertical lifting mechanism includes a rotary power source, the road gantry includes two opposing support rods and a rotatable crossbeam disposed between the two support rods, the rotary power source is connected to the crossbeam and is used to drive the crossbeam to rotate, the flipping drive device and the flexible graphic warning sign are both disposed on the crossbeam.

8. The road accident enhanced warning device according to claim 1, characterized in that, The narrow flexible strip is a hollow strip, and an air inlet is provided on the narrow flexible strip that can communicate with an external inflation device.

9. The road accident enhanced warning device according to claim 1, characterized in that, It also includes a smoke detector, which is installed behind or on the road gantry and can emit smoke when activated.

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