A warning and interception device for use in front of potential road disaster points

Abstract

The present invention relates to the technical field of highway interception devices, and in particular to an early warning interception device for use in front of potential highway disaster sites. The device comprises: a bracket, a plurality of light source emitters are evenly arranged on both sides of the bracket in the height direction, a box is provided above the bracket, a first space and a second space are sequentially arranged inside the box from top to bottom, a feed shaft is provided at the connection between the first space and the second space, the first space is filled with dust, a mixing chamber is provided in the second space, and an exhaust assembly is provided at the bottom of the mixing chamber, the exhaust assembly sprays dust downward to form a dust wall; the present invention is arranged at the tunnel entrance and dangerous area, and in the event of a sudden accident, the device uses the blocking form of lights or dust walls to achieve early warning and blocking of subsequent vehicles, reduce the impact of the accident, and effectively ensure the personal safety of the driver.

Description

Technical Field

[0001] The present invention relates to the technical field of highway interception devices, and in particular to an early warning interception device used in front of a potential disaster point on a highway. Background Art

[0002] When a sudden geological disaster or accident occurs at a highway disaster risk point, the traditional blocking and warning method is usually to use highway patrol officers to set up roadblocks before driving to the designated area. The response speed is slow, and during the intermediate time, subsequent vehicles are likely to enter the dangerous area, causing greater accident losses and endangering the lives of drivers. Therefore, for highway disaster risk points prone to geological disasters, there is an urgent need for a fast and timely early warning and interception device. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to address the above-mentioned technical deficiencies and provide an early warning and interception device for use in front of potential road disaster points. By being arranged at the tunnel entrance or other road areas, when a sudden accident occurs, it uses lights or dust walls to block subsequent vehicles, thereby reducing the impact of the accident and effectively ensuring the personal safety of the driver.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows:

[0005] A bracket, wherein multiple light source emitters are evenly arranged on both sides of the bracket along the height direction, a box is provided above the bracket, and a first space and a second space are provided inside the box from top to bottom, a feed shaft is provided at the connection between the first space and the second space, the first space is filled with dust, a mixing chamber is provided in the second space, and an exhaust component is provided at the bottom of the mixing chamber, and the exhaust component sprays the dust downward to form a dust wall.

[0006] Preferably, the mixing chamber includes an upper channel, a middle chamber and a lower channel; the upper channel is connected to the top of the second space, and a plurality of air inlets are provided on the upper channel; the middle chamber is connected to the upper channel at the top and is connected to the exhaust assembly through the lower channel at the bottom, and a plurality of nozzles are provided on the middle chamber; a control valve assembly is provided in the lower channel.

[0007] Preferably, a plurality of diverter strips are evenly distributed in the upper channel.

[0008] Preferably, a pointed baffle is provided in the middle of the intermediate cavity, and two side surfaces of the baffle are respectively opposite to the upper nozzle, and stepped protrusions and guide platforms are respectively provided on both sides of the lower side of the intermediate cavity.

[0009] Preferably, the exhaust assembly includes a fan and a docking channel; the docking channel is connected to the lower channel, and a plurality of first partition plates are provided inside the docking channel; a plurality of the fans are installed below the docking channel, an exhaust port connected to the external space is provided below the fan, and a second partition plate is provided inside the exhaust port.

[0010] Preferably, a collecting box pre-buried in the road surface is provided under the bracket, a plurality of air holes are evenly provided above the collecting box, a sliding gate plate and a partition are sequentially provided below the air holes, one end of the gate plate is connected to a thrust piece, a collecting trough is provided under the collecting box, and return air ducts are provided at both ends of the collecting trough; air inlet ducts are respectively provided at both ends of the first space, the air inlet duct and the return air duct are connected through a pipeline, and a plurality of separation plates are provided in the first space.

[0011] Preferably, two air curtains are symmetrically arranged below the box.

[0012] Preferably, drainage grooves are symmetrically provided on both sides of the collection trough; a baffle is provided in the middle of the collection box, and a support plate connected to a rotating shaft is symmetrically provided below the baffle; a sliding block connected in a sliding manner is provided at the front and rear of the collection box, a first connecting rod connected to the support plate is symmetrically provided on both sides of the slider, and a second connecting rod connected to the thrust piece is provided above the slider.

[0013] Preferably, a support plate is provided below the slider, a driving shaft is provided on the support plate, and a cleaning piece is provided on the driving shaft, and the front and rear ends of the collecting trough are respectively provided with sliding grooves for displacement of the driving shaft.

[0014] Preferably, gas storage parts are symmetrically provided on both sides of the exhaust assembly, and the gas storage parts are connected to the exhaust assembly through pipelines, and the gas storage parts are filled with gas.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1. In a driving environment with good lighting, when a road hazard occurs, the dust is evenly dispersed when passing through the mixing chamber and ejected downward by the exhaust assembly, forming a colored dust wall that is easy for the driver to observe and serves as a barrier and warning. It also does not endanger the driver's safety when a vehicle mistakenly enters the road, and has a flexible barrier function. In nighttime environments, the light beam can be used to warn the driver, achieving a flexible barrier warning effect.

[0017] 2. The structural design of the stepped protrusions and guide platform can change the movement path of dust in the mixing chamber and prolong the passing time. Combined with the use of the nozzle, it can greatly improve the mixing effect of dust and air, thereby ensuring the uniformity of dust in the ejected air flow and improving the visual effect of the dust wall;

[0018] 3. The control valve assembly can adjust the outlet area of the lower channel, thereby controlling the discharge amount and adjusting the concentration of the dust wall as needed to achieve different early warning effects;

[0019] 4. The structural design of the gas storage component can store irritating gas inside and discharge it through the exhaust component, which can also realize odor warning within a certain range, improve the warning effect, and achieve the role of coordinated warning;

[0020] 5. The structural design inside the collection box can collect and reuse the sprayed dust, which can reduce the consumption of dust on the one hand, and reduce the impact of dust dispersion on subsequent road cleaning on the other hand. It can also effectively improve the overall interception time, making it more practical and reliable;

[0021] 6. The structural design of the support plate can cope with the situation of water ingress into the collection box when not in use. It can divert rainwater and avoid water accumulation in the collection tank. When collecting dust, the support plate rotates to improve the connectivity between the collection tank and the space above, ensuring smooth airflow and improving the recovery effect.

[0022] 7. The rotation of the support plate is synchronized with the gate plate, which reduces the demand for power source and realizes linkage. The structural design is reasonable and ingenious. In addition, the design of the driving shaft can complete the cleaning operation inside the collection tank by driving the cleaning part to rotate during the working process, avoiding the accumulation of dust.

[0023] 8. This device can be used in front of areas prone to sudden accidents such as highway tunnels and mountain roads according to needs, playing the role of flexible blocking and early warning, improving response speed and reducing the occurrence of secondary accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of an early warning and interception device used in front of potential road disaster risk points;

[0025] Figure 2 Schematic diagram of the internal structure of the box;

[0026] Figure 3 is a schematic diagram of the structure in the second space;

[0027] Figure 4 It is a schematic diagram of the connection between the mixing chamber and the exhaust component;

[0028] Figure 5 This is a schematic diagram of the rear end structure of the box;

[0029] Figure 6 This is a schematic diagram of the entire box body;

[0030] Figure 7 It is a schematic diagram of the cross section of the feed shaft;

[0031] Figure 8 Schematic diagram of the internal structure of the collection box;

[0032] Figure 9 Schematic diagram of the upper surface structure of the collection box;

[0033] Figure 10 This is a connection diagram at the support plate;

[0034] Figure 11 This is a schematic diagram of the side section of the collection box;

[0035] Figure 12 This is a schematic diagram of the internal connection between the support plate and the collection box;

[0036] Figure 13 This is a connection diagram at the driving shaft;

[0037] Figure 14 This is a schematic diagram of the full section of the collection box;

[0038] Figure 15 It is a schematic diagram of the arrangement of the support plate and the collection tank;

[0039] Figure 16 It is a schematic diagram of the structure on both sides of the box.

[0040] In the figure: 1, bracket; 2, first space; 3, second space; 4, mixing chamber; 5, exhaust assembly; 6, collecting box; 7, slider; 8, chute; 9, air storage member; 101, light source emitter; 102, box body; 103, feed shaft; 104, air curtain; 201, separation plate; 301, air inlet pipe; 401, upper channel; 402, middle chamber; 403, lower channel; 404, air inlet; 405, nozzle; 406, control valve assembly; 407, diverter strip; 408, baffle; 409, stepped protrusion; 4091, guide platform; 501, fan; 502, docking channel; 503, first partition plate; 504, exhaust port; 505, second partition plate; 601, air hole; 602, gate plate; 603, partition plate; 604, thrust piece; 605, collecting trough; 606, return air duct; 607, drainage trough; 608, shielding plate; 609, support plate; 701, first connecting rod; 702, second connecting rod; 703, support plate; 704, driving shaft; 705, cleaning piece. DETAILED DESCRIPTION

[0041] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessary confusion of the concepts of the present invention.

[0042] Specific implementation method 1: Combination Figure 1-16 As shown, a warning and interception device for use in front of a potential disaster point on a highway comprises: a bracket 1, a plurality of light source emitters 101 are evenly arranged on both sides of the bracket 1 along the height direction, and at the same time, the light source emitters 101 on the front and rear of the bracket 1 are staggered to form multiple layers of light in a horizontal state, so as to achieve the effect of flexible blocking and early warning, a box 102 is fixed above the bracket 1, and a first space 2 and a second space 3 are arranged in sequence from top to bottom inside the box 102, a feed shaft 103 is provided at the connection between the first space 2 and the second space 3, the first space 2 is filled with dust, and a mixing chamber 4 is provided in the second space 3, and the dust is driven into the mixing chamber 4 by the rotation of the feed shaft 103 to realize the feeding operation, and an exhaust component 5 is provided at the bottom of the mixing chamber 4, and the exhaust component 5 sprays the dust downward to form a dust wall.

[0043] The preferred embodiment, combined with Figure 2-4 As shown, the mixing chamber 4 includes an upper channel 401, an intermediate chamber 402 and a lower channel 403; the upper channel 401 is connected to the top of the second space 3, and at the same time, there are multiple air inlets 404 on both sides of the upper side of the upper channel 401 for external airflow to enter and mix with the dust; the upper side of the intermediate chamber 402 is connected to the upper channel 401, and the lower side is connected to the exhaust component 5 through the lower channel 403. A plurality of nozzles 405 are provided on the intermediate chamber 402, and the nozzles 405 are connected to the air supply device, and each group of nozzles 405 can be controlled separately. A control valve assembly 406 is provided in the lower channel 403 for controlling the outlet area at the lower channel 403.

[0044] The preferred embodiment, combined with Figure 3 As shown, a plurality of diverter strips 407 are evenly distributed in the upper channel 401, and the diverter strips 407 on each layer are staggered with the diverter strips 407 on the lower layer, so that diversion and diffusion are achieved after the dust falls, which is convenient for improving the mixing effect after entering the middle cavity 402; wherein, the cross-sectional diameter of the diverter strip 407 is circular, and the overall structure is a round rod. After the diverter strip 407 is arranged, when the nozzle 405 generates an airflow to impact and mix the dust, it can also avoid the airflow directly impacting the feed shaft 103 upwards, affecting the normal feeding of the dust, and the cross-sectional shape of the diverter strip 407 can also be triangular, similar to the structure at the baffle 608, which can also play the role of diversion and dispersion, and avoid the airflow impacting upwards.

[0045] The preferred embodiment, combined with Figure 3 and Figure 4As shown, in order to optimize the mixing effect of dust and air and ensure continuous and stable feeding, a pointed baffle 408 is set in the middle of the middle chamber 402, and the two side surfaces of the baffle 408 correspond to the upper nozzle 405 respectively, that is, the airflow ejected by the nozzles 405 on both sides of the upper side directly pushes the dust to collide with the baffle 408, forming a vortex phenomenon and improving the uniform dispersion speed, and stepped protrusions 409 and guide platforms 4091 are respectively provided on both sides of the lower side of the middle chamber 402, which are respectively located on both sides of the lower nozzle 405. The stepped protrusions 409 can guide the airflow to impact the guide platform 4091, and cooperate with the nozzle 405 here to push the airflow upward along the guide platform 4091 to contact the baffle 408 again. After multiple reciprocating impacts between the airflow and the dust, the mixing effect of the two can be greatly improved, so that after the exhaust component 5 is discharged, a dust wall with a relatively uniform concentration is formed. In addition, this structural design prolongs the passage time of the airflow, plays a synergistic role, and improves the mixing effect.

[0046] In a preferred embodiment, the exhaust assembly 5 includes a fan 501 and a docking channel 502; the docking channel 502 is connected to the lower channel 403, and a plurality of first partition plates 503 are provided inside the docking channel 502, which can divert the incoming airflow to ensure uniform airflow in the extraction area of each fan 501, thereby improving the feeding effect; a plurality of fans 501 are installed below the docking channel 502, and an exhaust port 504 connected to the external space is provided below the fan 501, and the bottom outlet position of the exhaust port 504 is flat, which reduces the outlet area and can increase the speed of the exhaust airflow, and a plurality of second partition plates 505 are arranged at equal intervals at the outlet to achieve a diversion effect.

[0047] In a preferred embodiment, in order to realize dust recovery, improve utilization efficiency, extend working time, and reduce the impact on the external environment, a collection box 6 pre-buried in the road surface is provided below the bracket 1, and the upper surface of the collection box 6 is flush with the road surface. At the same time, a plurality of air holes 601 are evenly provided on the upper surface of the collection box 6, and a slidable gate plate 602 and a partition plate 603 are sequentially provided below the air holes 601. A thrust piece 604 is connected to one end of the gate plate 602, and the sliding control of the gate plate 602 is achieved by the thrust piece 604, and filter holes are evenly arranged on the partition plate 603, which can play a role in protecting external garbage. A collection trough 605 is provided below the collection box 6, and the collection The bottom of the collecting trough 605 is a circular bottom surface, and return air ducts 606 are provided at both ends of the collecting trough 605. Air inlet ducts 301 are respectively provided at both ends of the first space 2. At the same time, an exhaust fan is arranged at the air inlet duct 301 to produce a negative pressure adsorption effect. The air inlet duct 301 is connected to the return air duct 606 through a pipeline, and a plurality of separation plates 201 are provided in the first space 2. The recovered dust enters the first space 2 again under the action of the exhaust fan, and changes the direction of the airflow by contacting the separation plate 201. The gravity of the dust is used to achieve a separation effect, so that the dust can smoothly settle to the lower position of the first space 2; wherein, the thrust piece 604 preferably adopts a hydraulic cylinder structure.

[0048] The preferred embodiment, combined with Figure 1 and Figure 16 As shown, two air curtain machines 104 are symmetrically arranged below the box 102. The air curtain machines 104 can blow air downward to form a wind wall. On the one hand, it can prevent the spread of dust and ensure the stability of the dust wall. On the other hand, it can cope with the impact of external wind on the dust wall and ensure the stability of the overall structure.

[0049] The preferred embodiment, combined with Figure 8 、 Figure 9 、 Figure 14 and Figure 15As shown, drainage grooves 607 are symmetrically provided above both sides of the collection tank 605, and one end of the drainage groove 607 is connected to the drainage pipe arranged outside; a shielding plate 608 is provided in the middle of the collection box 6, and a support plate 609 connected to the shaft is symmetrically provided below the shielding plate 608. The shielding plate 608 also adopts a pointed top structure to cover the area where the support plate 609 is connected to the shaft to prevent water from falling into the collection tank 605 from here. Sliding sliders 7 are provided at the front and rear of the collection box 6, and the sliders 7 are symmetrically provided on both sides. There is a first connecting rod 701 connected to the support plate 609, and a second connecting rod 702 connected to the thrust piece 604 is provided above the slider 7. When dust recovery is required, the thrust piece 604 is used to pull the gate plate 602 to move so that the hole position on the gate plate 602 is aligned with the air hole 601. At the same time, the second connecting rod 702 is used to push the slider 7 downward, triggering the two support plates 609 to rotate downward, thereby improving the smoothness of the airflow. In addition, relying on a power source of the thrust piece 604, the synchronous drive of multiple position structures is completed, with an ingenious structure and a reasonable design layout.

[0050] In order to avoid dust residue in the collection tank 605 and to clean the collection tank 605, the preferred embodiment is combined with Figure 8-15 As shown, a support plate 703 is welded under the slider 7, and a driving shaft 704 is provided on the support plate 703. The two ends of the driving shaft 704 are respectively connected to the support plate 703 as a rotating shaft, and a driving motor is fixed on one of the support plates 703 to drive the driving shaft 704 to rotate. A cleaning piece 705 is provided on the driving shaft 704, and the front and rear ends of the collecting trough 605 are respectively provided with a slide 8 for the displacement of the driving shaft 704. During the downward displacement of the slider 7, the support plate 703 is synchronously driven to move downward, and at the same time, the surface of the support plate 703 is in close contact with the collecting trough 605, which can seal the slide 8 and reduce leakage. After reaching the specified position, the cleaning piece 705 comes into contact with the collecting trough 705 at the same time to achieve the function of cleaning and lifting; wherein, the cleaning piece 705 can adopt an end-mounted brush structure or a scraper structure.

[0051] The preferred embodiment, combined with Figure 3 and Figure 4 As shown, gas storage parts 9 are symmetrically provided on both sides of the exhaust component 5. The gas storage parts 9 can be gas storage tanks to store irritating gases. The gas storage parts 9 are connected to the exhaust component 5 through pipelines. At the same time, a solenoid valve is provided on the pipeline to control the opening and closing of the pipeline. In the process of discharging dust from the exhaust port 504, irritating gases can be released synchronously to achieve early warning in the area and remind vehicles to slow down. At the same time, the feed shaft 103 can also be closed to achieve gas early warning alone, but the diffusion of gas requires a certain amount of time and has a delay, so it should be selected according to the situation.

[0052] Combine Figure 4As shown, the control valve assembly 406 includes a control hydraulic cylinder and a valve plate; the control hydraulic cylinders are arranged in pairs, and the ends are respectively fixed at the right position of the second space 3. The push rods of the control hydraulic cylinders are fixedly connected to the valve plate. The valve plate passes through the right position of the lower channel 403. The valve plate is pushed by the control hydraulic cylinder to move, so as to adjust the size of the outlet of the lower channel 403. In order to avoid residue at the valve plate and reduce interference with the air flow, the valve plate can also be designed as a rubber membrane. The front and rear ends of the rubber membrane have elastic arc sheets, and the elastic arc sheets are fixedly connected to the rubber membrane. At the same time, the upper part of the rubber membrane is fixedly connected to the right side wall of the lower channel 403, and the lower end is a movable connection. A rectangular horizontal strip is fixed on the push rods of the two control hydraulic cylinders. The horizontal strip is fixedly connected to the rubber membrane. By pulling the rubber membrane by the control hydraulic cylinder, the size of its own arc can be changed, thereby realizing the control and adjustment of the outlet size. As a preference, the horizontal strip has a sliding groove, and the sliding groove is slidably connected to the push rod. During the pushing deformation process, the horizontal strip can be displaced upward for a distance.

[0053] Combine Figure 3 、 Figure 5 and Figure 7 As shown, one end of the feed shaft 103 is connected to the motor, and the other end is connected to the box body 102 as a rotating shaft, which can realize the driving of the feed shaft 103. At the same time, there are multiple storage troughs on the feed shaft 103, and there are multiple storage troughs evenly distributed along the circumferential direction, preferably 3, to realize the feeding operation; at the same time, in order to prevent the dust in the first space 2 from accumulating and affecting the material falling, a stirring shaft is installed in the first space 2, and one end of the stirring shaft is also connected to the motor. By driving the stirring shaft to rotate, the dust is stirred and loosened.

[0054] Combine Figure 2 and Figure 5 As shown, there is an air outlet on the top of the box 102 for exhausting dust during the dust separation process. At the same time, the air outlet needs to be sealed and waterproofed, and the pipes and protective nets in the existing structure can be used.

[0055] Combine Figure 14 As shown, the two upper sides of the collecting box 6 are provided with tracks for connecting the gate plate 602 to slide, so as to support the sliding displacement of the gate plate 602 .

[0056] Application Scenario 1

[0057] For sections of road prone to geological disasters, such as collapse, landslide, and debris flow, the device can be placed at an appropriate position in front of the section. When the road is unobstructed, the device will not work as a whole. When an unexpected accident or geological disaster occurs, it is necessary to remind subsequent vehicles to avoid entering dangerous sections. The fan 501 is started and the feed shaft 103 rotates at the same time, continuously driving the dust through the upper channel 401 into the middle cavity 402 for mixing, and enters the exhaust port 504 from the lower channel 403 and is sprayed downward to form a dust wall, thereby closing the road and having a color. The dust wall makes it easy for the driver to observe abnormalities from a distance. The falling dust enters through the air holes and is recycled and reused after passing through the partition 603 and the collection tank 605, thereby reducing the waste of dust. There will still be a certain amount of dust diffusion, but it will not affect the overall use. And when it is necessary to warn the entire area within a certain range, the air storage part 9 can also be opened to realize the diffusion of irritating odors and issue early warnings to vehicles in the area. In the working state, even if a vehicle passes through the device by mistake, the dust will not cause harm to the vehicle and personnel, thus achieving the function of flexible blocking.

[0058] Application Scenario 2

[0059] The device is placed at an appropriate location at the tunnel entrance. When an accident occurs inside, it is activated in time to respond to the early warning, which greatly reduces the occurrence of subsequent accidents and protects the safety of people and property.

[0060] For sections of road with a large number of people, it is necessary to install a collection box structure to reduce dust diffusion, and odor warnings must be selected carefully.

[0061] By adding an existing PLC and receiving module to the device, when an accident or disaster is detected in the area, a signal is sent to the receiving module, which is processed by the PLC and controls the internal structure to start, thus completing the requirements of rapid response interception and warning.

[0062] Regarding the choice of dust: plant fiber powder, which is of natural origin, biodegradable, non-toxic and harmless; after adding dyes, it has high visibility, such as 50-100 micron fluorescent yellow, fluorescent orange, and red, which are suitable for tunnel accident warning and flexible blocking;

[0063] Mineral powder, derived from natural minerals, has good stability and is not hygroscopic; it can be colored with dyes, such as 80-150 microns in various colors (environmentally friendly dyes must be used), and is suitable for applications in outdoor or semi-enclosed environments;

[0064] Starch-based powder is biodegradable and non-toxic. It can be dyed to produce a variety of colors, such as 30-80 micron food-grade dyes (e.g., food coloring), and is suitable for indoor applications or low-wind environments.

[0065] Silica gel microspheres are chemically stable and can be coated with dyes. They are non-hygroscopic and easy to control the suspension time. They are available in sizes of 50-200 microns and in various colors (customizable upon request). They are suitable for applications in high humidity or complex environments.

[0066] Preferred materials: Plant fiber powder or starch-based powder. Recommended dyes: Food-grade fluorescent dyes (such as fluorescent yellow or fluorescent orange) ensure safety and high visibility. Particle size: It is recommended to control between 50-100 microns to ensure suspension performance without posing a health risk.

[0067] Regarding the demand for dust quantity; dust concentration refers to the mass of dust contained in a unit volume of air (usually expressed in grams per cubic meter); based on actual needs and safety considerations, the recommended dust concentration range is 50 g / m³ to 100 g / m³; lower concentrations (such as 50g / m³) are suitable for long-distance observation, with weaker visual effects but saving materials; higher concentrations (such as 100g / m³) are suitable for close-up observation, with stronger visual effects.

[0068] Volume of wind wall: The volume of wind wall can be calculated by its height and width: V = height × width × thickness;

[0069] Calculated under the conditions of height: 4 meters, width: 12 meters, thickness: 0.5 meters (adjustable according to actual needs): V=4m×12m×0.5m=24m 3 ;

[0070] Dust demand per minute:

[0071] The dust demand can be calculated using the following formula: mass = dust concentration × wind wall volume;

[0072] Dust demand at different concentrations, dust concentration is 50g / m³: mass = 50g / m 3 ×24m 3 =1200g=1.2kg, 1.2kg of dust is required per minute;

[0073] When the dust concentration is 100 g / m³: mass = 100 g / m 3 ×24m 3 =2400g=2.4kg, 2.4kg of dust is required per minute.

[0074] According to the above calculations, with a height of 4 meters and a width of 12 meters:

[0075] When the dust concentration is 50 g / m³, 1.2 kg of dust is required per minute;

[0076] When the dust concentration is 100 g / m³, 2.4 kg of dust is required per minute, which can meet the actual use requirements.

[0077] Regarding gas selection:

[0078] Dimethyl sulfide has a distinct odor (similar to the smell of cooked cabbage or rotten eggs), is highly diffusible, and can spread rapidly in the air. It is harmless to the human body at low concentrations, but may cause mild irritation at high concentrations. It has low cost and is widely used in food flavoring and industrial fields.

[0079] Regarding the amount of gas diffusion required: Target coverage: a circular area with a radius of 1 km;

[0080] Target concentration: Assume that the olfactory threshold concentration of the gas needs to be reached (such as 0.00003 ppm for ethyl mercaptan);

[0081] Ambient wind speed: Assume the wind speed is 2m / s (common outdoor wind speed);

[0082] Gas type: Calculate using ethyl mercaptan as an example;

[0083] Calculation steps: Air volume, a circular area with a radius of 1 km, assuming the gas diffusion height is 10 meters (typical outdoor diffusion height), the total volume is: V=π×r²×h;

[0084] V = 3.14 × (1000 m)² × 10m;

[0085] V=31400000m³;

[0086] Target mass: The odor threshold of ethyl mercaptan is 0.00003 ppm (i.e., 0.00003 mg of ethyl mercaptan per cubic meter of air). Total mass: M = V × C = 31400000 m 3 ×0.00003mg / m 3 =942mg=0.942g;

[0087] Adjustment of actual demand: Due to wind speed and diffusion loss, the actual required gas volume needs to be increased several times or even dozens of times. Assuming the diffusion efficiency is 10% (i.e., only 10% of the gas can effectively cover the target area), the actual demand is: Mactual = M / efficiency;

[0088] Mactual = 0.942 g / 0.1;

[0089] Mactual = 9.42 g;

[0090] Under the above conditions, about 9.42 grams of ethyl mercaptan is needed to produce a noticeable odor within a range of one kilometer.

[0091] Regarding the choice of light source transmitter: a semiconductor laser (monochromatic laser light) is used with a wavelength of 520nm (green) or 635nm (red). Green light is within the sensitive range of the human eye and is easier to identify. The power is 5W to 10W, which is enough to cover a width of 6 meters and maintain clear visibility. It has high brightness and can be clearly seen even in the daytime. It has strong anti-interference ability and is not easily affected by natural light or car lights. It has a compact structure and is easy to install. It can be widely used for highway warnings at night or in low visibility conditions, forming a clear light wall or beam to alert drivers.

[0092] Multi-color full-color laser light; Wavelength: supports red, green, and blue primary color combinations, and can generate a variety of colors; Power: 20W to 50W, suitable for a wider range of light coverage, and can convey more information through different color combinations (such as red for danger, green for passage). The light intensity is high and is not easily disturbed by external ambient light. It supports dynamic effects (such as flashing, scanning, etc.) to enhance the warning effect and can be used for multi-scenario warnings in complex traffic environments.

[0093] When the amount of dust is large and the impact on the surrounding environment is not considered, this device can adjust the angle direction of the exhaust port 504 to discharge the dust directly in the direction of the vehicle, forming a dust mist accumulation, which plays a role in early warning and interception. However, it is not suitable for strong winds and the concentration problem must be controlled.

[0094] It should be understood that the above-described specific embodiments of the present invention are merely illustrative or illustrative of the principles of the present invention and do not constitute limitations of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included within the scope of protection of the present invention. In addition, the appended claims are intended to cover all variations and modifications that fall within the scope and metes and bounds of the appended claims, or equivalents thereof.

Claims

1. A warning and interception device for use in front of potential road disaster points, characterized in that: include: A bracket (1), wherein a plurality of light source emitters (101) are evenly arranged on both sides of the bracket (1) along the height direction, a box (102) is provided above the bracket (1), a first space (2) and a second space (3) are sequentially provided inside the box (102) from top to bottom, a feed shaft (103) is provided at the connection between the first space (2) and the second space (3), the first space (2) is filled with dust, a mixing chamber (4) is provided in the second space (3), and an exhaust assembly (5) is provided at the bottom of the mixing chamber (4), and the exhaust assembly (5) sprays the dust downward to form a dust wall; The mixing chamber (4) comprises an upper channel (401), an intermediate chamber (402) and a lower channel (403); the upper channel (401) is connected to the top of the second space (3), and a plurality of air inlets (404) are provided on the upper channel (401); the upper portion of the intermediate chamber (402) is in communication with the upper channel (401), and the lower portion is in communication with the exhaust assembly (5) through the lower channel (403); the intermediate chamber (402) is provided with a plurality of nozzles (405); and a control valve assembly (406) is provided in the lower channel (403); A pointed baffle (408) is provided in the middle of the intermediate cavity (402), and two side surfaces of the baffle (408) are respectively opposite to the nozzle (405) above. Stepped protrusions (409) and guide platforms (4091) are respectively provided on both sides of the lower side of the intermediate cavity (402). The exhaust assembly (5) comprises a fan (501) and a docking channel (502); the docking channel (502) is communicated with the lower channel (403), and a plurality of first partition plates (503) are provided inside the docking channel (502); a plurality of fans (501) are installed below the docking channel (502), an exhaust port (504) communicating with an external space is provided below the fan (501), and a second partition plate (505) is provided inside the exhaust port (504).

2. The early warning and interception device for use in front of a potential highway disaster point according to claim 1, characterized in that: A plurality of diverter strips (407) are evenly distributed in the upper channel (401).

3. The early warning and interception device for use in front of a potential highway disaster point according to claim 1, characterized in that: A collecting box (6) pre-buried in the road surface is provided below the bracket (1); a plurality of air holes (601) are evenly provided above the collecting box (6); a slidable gate (602) and a partition (603) are sequentially provided below the air holes (601); one end of the gate (602) is connected to a thrust piece (604); a collecting trough (605) is provided below the collecting box (6), and return air ducts (606) are provided at both ends of the collecting trough (605); air inlet ducts (301) are provided at both ends of the first space (2); the air inlet duct (301) and the return air duct (606) are connected through a pipeline, and a plurality of separation plates (201) are provided in the first space (2).

4. The early warning and interception device for use in front of a potential highway disaster point according to claim 3, characterized in that: Two air curtain machines (104) are symmetrically arranged below the box (102).

5. The early warning and interception device for use in front of a potential highway disaster point according to claim 3, characterized in that: Drainage grooves (607) are symmetrically provided on both sides of the collecting trough (605); a shielding plate (608) is provided in the middle of the collecting box (6); a supporting plate (609) connected to a rotating shaft is symmetrically provided below the shielding plate (608); a sliding block (7) is provided at the front and rear of the collecting box (6); first connecting rods (701) connected to the supporting plate (609) are symmetrically provided on both sides of the sliding block (7); and a second connecting rod (702) connected to the thrust member (604) is provided above the sliding block (7).

6. The early warning and interception device for use in front of a potential highway disaster point according to claim 5, characterized in that: A support plate (703) is provided below the slider (7), a driving shaft (704) is provided on the support plate (703), and a cleaning member (705) is provided on the driving shaft (704). The front and rear ends of the collecting trough (605) are respectively provided with sliding grooves (8) for displacement of the driving shaft (704).

7. The early warning and interception device for use in front of a potential highway disaster point according to claim 1, characterized in that: Gas storage components (9) are symmetrically provided on both sides of the exhaust component (5), and the gas storage components (9) are connected to the exhaust component (5) through pipelines. The gas storage components (9) are filled with gas.

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