Flexible blocking equipment

Abstract

The invention belongs to the technical field of emergency management and control, and particularly discloses flexible blocking equipment which comprises a box body, a smoke forming unit is installed in the box body, and a light curtain belt forming unit is further installed on one side of the box body. The smoke forming unit comprises an air inlet cover, a fan and a smoke guide cover which are connected in sequence; a smoke storage tank is arranged in the air inlet cover; the smoke guide cover comprises an upper guide cover and a lower guide cover, a guide grid surface is arranged on the guide smoke outlet, and the guide grid surface comprises a plurality of guide grids which are vertically arranged at intervals; flow guide columns are arranged in the upper flow guide cover and the lower flow guide cover, and the closed surfaces of the two flow guide columns and the inner sides of the upper flow guide cover and the lower flow guide cover form a smoke outlet ring belt respectively; the light curtain belt forming unit comprises a mounting frame, a plurality of aspherical lenses and a plurality of LED light sources, the mounting frame is hollow, and the aspherical lenses and the LED light sources are arranged on the two sides of the mounting frame in a right-facing mode respectively. The smoke screen belt with uniform laminar flow can be formed, and a more striking flexible blocking effect is formed by combining the smoke screen belt with the light screen belt.

Description

Technical Field

[0001] The present invention relates to the technical field of emergency control, and in particular to a flexible blocking device. Background Art

[0002] In view of the current situation where once an emergency occurs in a tunnel, subsequent vehicles may continue to drive into the tunnel due to the inability to obtain accurate information in the first time, which may cause the severity of the accident to increase. In combination with the need for tunnel safety protection, it is necessary to set up a blocking system on the traffic road to prevent the rear vehicles from continuing to drive.

[0003] Once an emergency occurs in the tunnel, multiple blocking systems are set up at the entrance or before and after the entrance to implement flexible spatial area traffic flow blocking in the entire space in a combination of longitudinal and lateral forms, preventing vehicles from entering the tunnel from behind, and avoiding traffic congestion in the accident tunnel, which may cause difficulties in evacuating and rescuing people, and even cause secondary accidents.

[0004] The blocking system in the prior art uses a water curtain combined with light projection to form an image on a water curtain or a water screen, thereby playing the role of blocking vehicles in three-dimensional space. However, the imaging method of the water curtain or water screen has low recognition and needs to be implemented inside or at the entrance of the cave, which limits the usage scenarios. In addition, this method has low recognition and is not eye-catching enough. It can only be seen from a close distance, which can easily lead to rear-end collisions due to untimely braking of vehicles.

[0005] In order to solve the above problems, the invention patent with publication number CN115565318A in the prior art discloses a road traffic emergency blocking light smoke screen forming control method based on the Tyndall effect. The patent uses a smoke screen to play a blocking role. Compared with a water curtain or a water curtain, the smoke screen is more eye-catching and will not cause the road surface to be slippery.

[0006] This patent uses a light curtain combined with a smoke screen to enhance the blocking effect. However, the smoke ejected by the smoke generator in this patent cannot be effectively sprayed in a uniform laminar flow to form a uniform smoke screen belt after leaving the equipment. It will form clustered smoke rings of varying shades with the flow direction of the natural wind in the environment. The position of the smoke ring is not fixed and may be blown away from the lane by the natural wind in the environment. The stability of the smoke belt in the prior art is insufficient, which is not conducive to long-distance observation by drivers and passengers. In addition, the smoke ejected by the existing smoke generator is white smoke, which is less conspicuous under sunlight.

[0007] In addition, the light curtain in the patent is formed by emitting light source by laser, which has the following disadvantages:

[0008] The laser uses a laser superimposed with a polarizer to emit light. The thermal stability of the laser light source is poor, the brightness has thermal attenuation, and the heat dissipation is difficult to handle. It is not suitable for hot outdoor environments. Specifically:

[0009] 1. Usually, the laser generates a laser beam. The laser beam generated by the laser is very concentrated, the heat dissipation pressure is very high, and the light source density is very high, which causes the laser to be under very high pressure. Then, when the laser is under very high pressure, a large thermal conductivity area and heat dissipation area are required to disperse the heat and ensure the effectiveness of the emitted light.

[0010] 2. Electronic devices are very sensitive to heat, and lasers are the most sensitive to heat. If the temperature rises by only a few degrees, the power loss will be very large. This will greatly limit the range of environmental conditions in which the laser can be used. For example, when used in summer, the light attenuation is serious and the expected effect cannot be achieved. Strong light cannot be seen, which affects the blocking effect. Although the heat can be dissipated by blowing air, the temperature of the wind is high in summer, and the heat dissipation effect is not good, resulting in insufficient light output power and low efficiency.

[0011] 3. In addition, the laser emitted by the laser is shot out directly, and its density is too high, which may cause photobiological damage when used, and there are potential safety factors. Summary of the invention

[0012] The present invention provides a flexible blocking device, the purpose of which is to form a uniform laminar smoke screen belt and to form a more eye-catching flexible blocking effect in combination with a light curtain belt.

[0013] The present invention is implemented by the following technical scheme: a flexible blocking device comprises a box body, one side of the box body is provided with a fluid inlet, the other side of the box body is provided with a fluid outlet, a smoke forming unit is installed in the box body, and a light curtain belt forming unit is also installed on one side of the box body;

[0014] The smoke shaping unit comprises an air inlet hood, a fan and a smoke guide hood connected in sequence;

[0015] The air inlet cover is installed at the fluid inlet, and a smoke storage tank is arranged in the air inlet cover, and the chemical substances in the smoke storage tank can generate smoke after being ignited;

[0016] The smoke deflector is in the shape of an 8, and comprises an upper deflector and a lower deflector, the upper deflector and the lower deflector are connected to each other, and the upper deflector and the lower deflector are connected to each other on one side away from the fan, and a deflector grille surface is provided on the smoke outlet, and the deflector grille surface comprises a plurality of deflector grilles arranged at vertical intervals, and the deflector grille surface is installed on the fluid outlet; deflector columns are provided in the upper deflector and the lower deflector, and two deflector columns are connected to the deflector grille surface, one end of the deflector column away from the fan is a closed surface, and the other end of the deflector column is a deflection conical surface, and the closed surfaces of the two deflector columns respectively form a smoke outlet annulus with the inner sides of the upper deflector and the lower deflector;

[0017] The light curtain belt forming unit is located on the same side as the guide grille surface in the smoke forming unit, and the light curtain belt forming unit includes a mounting frame, a plurality of aspheric lenses and a plurality of LED light sources. The mounting frame is hollow, and the plurality of aspheric lenses and the plurality of LED light sources are vertically spaced apart along the mounting frame. The plurality of aspheric lenses and the plurality of LED light sources are respectively arranged on both sides of the mounting frame facing each other.

[0018] Compared with the prior art, this solution has the following advantages and beneficial effects:

[0019] In this scheme, the outside wind enters the air inlet hood from the fluid inlet under the negative pressure of the fan. The smoke generated by the smoke storage tank is rotated at high speed by the fan blade of the fan, and the smoke is evenly dispersed. Then, the smoke passes through the flow space composed of the guide cone surface and the guide grille surface of the two guide columns in the smoke guide hood. Since the guide grille is vertically arranged, the smoke fluid is guided from a turbulent state to a laminar state and ejected, forming a uniformly distributed smoke jet flow, thereby playing a flexible blocking role, reminding the driver and passengers of the danger ahead, and making emergency plans such as parking.

[0020] In this solution, the upper guide cover and the lower guide cover are interconnected to avoid discontinuity in the middle of the ejected smoke wall and the formation of a broken belt. The smoke wall formed in this solution is continuous, and under the action of the guide column and the vertically arranged guide grille, the smoke in a turbulent state can be converted into a laminar state for ejection to form a uniformly distributed and regular smoke screen belt. The position of the laminar smoke at the ejection point is fixed, and the formed smoke screen belt is more stable, which is conducive to long-distance observation by drivers and passengers.

[0021] In addition, in the present solution, the closed surfaces of the two guide columns in the middle form a smoke outlet ring with the inner sides of the upper guide cover and the lower guide cover, respectively, which can ensure sufficient wind speed. If there is no closed surface in the middle, and the end faces of the upper guide cover and the lower guide cover are completely unobstructed smoke flow areas, the pressure loss is small at this time, but the air outlet area is large. Since the pressure and area are inversely proportional, the larger the air outlet area, the closer the distance of the smoke blown out is, and the poorer the blocking effect is.

[0022] The setting of the smoke outlet ring in the present application can ensure that the wind has a sufficient wind speed when the air is discharged, the smoke outlet distance is large, and laminar flow can be formed.

[0023] In addition, this solution uses multiple high-power density LED light sources to form multiple light sources that disperse light. The light emitted by the light source can be refracted and collimated into parallel light beams through aspheric lenses. Since this solution has multiple LED light sources and aspheric lenses, multiple LED light sources and multiple aspheric lenses can be arranged linearly, thereby realizing the formation of a continuous linear light curtain belt by multi-point light emission. This solution uses linear dispersed light, and the light power density of a single LED light source is within the limit range required by photobiological safety laws and regulations, and will not cause photobiological damage during use; similar products on the market use laser polarizers, and the light power density is much higher than this product, which has potential safety factors.

[0024] In addition, the mounting frame of this solution is used to install aspheric lenses and LED light sources. Since the mounting frame is hollow, the hollow mounting frame can allow wind to convect in the entire light curtain belt forming unit, and the wind can circulate and dissipate heat inside; at the same time, the hollow structure can reduce the convective heat transfer capacity on the front of the light source, improve the stability of the light output, and the formed light curtain belt is stable and straight. When used in conjunction with smoke forming equipment in the later stage, it can have a more effective blocking and warning effect. Similar products on the market use laser superimposed polarizers to emit light. The thermal stability of the laser light source is poor, the brightness has thermal attenuation, and the light output stability is poor. In this solution, smoke is combined with a light curtain to form a straight and uniform light smoke belt, which can increase the conspicuousness and thus improve the blocking effect.

[0025] Furthermore, a horizontally arranged turbulence demarcation plate is connected to the middle position of the guide grille surface.

[0026] Beneficial effect: In this solution, the upper air guide cover and the lower air guide cover have a smoke outlet structure that is interconnected on one side away from the fan, so that the smoke outlets of the upper air guide cover and the lower air guide cover form a connected whole, and a turbulent demarcation plate is added in the middle position of the guide grille surface, so that the smoke can be connected from the middle of the smoke outlet of the smoke guide cover, and the mutual interference between the upper and lower smoke parts can be avoided.

[0027] Under the blocking effect of the turbulent decomposition plate, the smoke can be forced to move forward, avoiding the formation of vortex and turbulence in the middle part of the smoke outlet, so that the smoke can only be ejected in laminar flow to form a regular and uniform smoke curtain wall.

[0028] In addition, since the entire smoke deflector in this solution forms a hollow structure, the arrangement of the turbulent boundary plate can also enhance the strength of the entire smoke deflector.

[0029] Furthermore, two of the fans and two of the air inlet covers are provided, and the two fans and the two air inlet covers are respectively arranged opposite to the upper air guide cover and the lower air guide cover.

[0030] Beneficial effect: In this solution, the two fans and the two air inlet covers are respectively opposite to the upper guide cover and the lower guide cover, so that the smoke curtain wall laminar flow is more uniform and the smoke curtain wall effect is better.

[0031] Furthermore, the smoke storage tanks are provided in plurality, and the plurality of smoke storage tanks are evenly distributed along the circumference of the air inlet hood, and the smoke storage tanks are close to the inner section of the air inlet hood.

[0032] Beneficial effect: The arrangement of multiple smoke storage tanks in the present solution can ignite a certain number of smoke storage tanks according to actual needs, and determine whether it is necessary to ignite more smoke storage tanks based on whether the interception is successful on site.

[0033] In addition, compared with arranging multiple smoke storage tanks in the middle of the air inlet hood, this solution arranges multiple smoke storage tanks on the inner tangent surface close to the air inlet hood, which can reduce wind resistance and pressure loss, avoid excessive wind speed reduction, and make the smoke more uniform. The smoke storage tanks are arranged on the inner tangent surface of the air inlet hood, so that the smoke is discharged at the outermost side. During the rotation of the fan blade of the fan, the wind force will rotate toward the center, thereby ensuring that the smoke can be uniform on the entire flow surface, so that the smoke is more uniform and the effect is better.

[0034] Furthermore, a mounting groove is opened on one side of the box body, and the light curtain belt molding unit is installed in the mounting groove; the mounting frame includes a mounting plate for mounting the aspheric lens and a heat dissipation base for mounting the LED light source, and an adjustment seat is connected between the heat dissipation base and the mounting plate, and the adjustment seat is provided with an adjustment member capable of adjusting the distance between the mounting plate and the heat dissipation base.

[0035] Beneficial effects: In this solution, a hollow mounting frame is formed between the mounting plate, the heat dissipation base and the adjustment seat. The structure is simple and the air inside the mounting frame can form convection and heat dissipation effects, thereby ensuring stable light output and reducing light attenuation.

[0036] In addition, in practice, if the aspheric lens and the LED light source are tilted and not directly facing each other, the emitted light sources will be staggered and disorderly, and the light curtain wall effect will be poor. In this solution, the adjustment member is used to adjust the distance between the mounting plate and the heat dissipation base, thereby adjusting the position between the aspheric lens and the LED light source, so that the aspheric lens and the LED light source can be parallel. In this way, each emitted light beam is parallel, forming a parallel light curtain wall, which is convenient for the later coordination with the parallel ejected smoke wall, thereby improving the presentation effect of flexible blocking.

[0037] Furthermore, a protective door is slidably connected in the installation groove, and sliding the protective door can open or close the installation groove. A driving member for driving the protective door to open and close is installed on the box body.

[0038] Beneficial effect: In this solution, when the light curtain belt molding unit is started, the driving part opens the protective door, and then the light curtain belt molding unit is opened; when the light curtain belt molding unit function is turned off, the driving part closes the protective door. When the protective door is closed, it can ensure that the surface of the aspherical lens can be kept clean for a long time in any outdoor environment, and the projection light belt effect can be stably guaranteed during use.

[0039] Furthermore, a wind speed monitor is installed on the top of the box.

[0040] Beneficial effects: The wind speed monitor in this solution can measure the wind level at the environmental site and provide a decision for the wind pressure intensity blown by the fan, which is convenient for directional control in the later stage.

[0041] Furthermore, a display screen, a warning light and a directional broadcast are installed on the side of the box body facing the driving direction, and the warning light and the directional broadcast are located at the upper part of the box body and above the display screen.

[0042] Beneficial effects: In this solution, the display screen provides dynamic video warnings or highlighted text warnings, the warning effect is increased by warning lights, and the accident content is reported through directional broadcasting. This solution can accurately provide emergency risk avoidance safety guidance for drivers and passengers through multi-dimensional stimulus factors.

[0043] Furthermore, a direction video monitoring unit and a roadside video monitoring unit are installed on the box body. The direction video monitoring unit and the warning light are located on the same side, and the roadside video monitoring unit and the guide grille surface are located on the same side.

[0044] Beneficial effects: This solution can be based on video data analysis from both the roadside and road direction directions, so as to facilitate real-time updating of warning voice information and video image text information, and real-time determination of the opening and closing status of the smoke forming unit and the light curtain belt forming unit; similar equipment on the market has no real-time update strategy, no active correction function, and cannot perform appropriate strategy updates based on the real-time blocking effect of the road section, so as to reasonably guide drivers and passengers to conduct orderly and safe guidance and avoid secondary accident injuries.

[0045] Furthermore, a closed enclosure is connected to the bottom of the box body, and a wire entry hole is opened at the bottom of the box body, and the wire entry hole is located inside the closed enclosure.

[0046] Beneficial effects: The closed enclosure in this solution can make the entire structure more beautiful and compact, and the closed enclosure has the function of blocking water and preventing animals from entering, and the setting of the wire entry hole facilitates the connection of communication cables or cables to the inside of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0048] Figure 1 A three-dimensional diagram of a flexible blocking device embodiment of the present invention from one viewing angle;

[0049] Figure 2 A three-dimensional diagram of another perspective of an embodiment of a flexible blocking device of the present invention;

[0050] Figure 3 A three-dimensional diagram of a smoke forming unit from one perspective in an embodiment of a flexible barrier device of the present invention;

[0051] Figure 4 A three-dimensional diagram of another perspective of the smoke forming unit in an embodiment of a flexible barrier device of the present invention;

[0052] Figure 5 A three-dimensional diagram of a smoke deflector in an embodiment of a flexible blocking device of the present invention;

[0053] Figure 6 It is a front view of an embodiment of a flexible blocking device of the present invention;

[0054] Figure 7 for Figure 6 Sectional view at CC;

[0055] Figure 8 for Figure 6 Sectional view at AA in the middle;

[0056] Fig. 9 for Figure 6 Sectional view at the middle BB;

[0057] Fig.10 A rear view of an embodiment of a flexible blocking device of the present invention;

[0058] Fig.11 It is a schematic diagram of the structure of a smoke bomb in an embodiment of a flexible blocking device of the present invention;

[0059] Fig.12 It is a front view of an embodiment of a flexible blocking device of the present invention;

[0060] Fig.13 A side view of an embodiment of a flexible blocking device of the present invention;

[0061] Fig.14 A three-dimensional diagram of a light curtain belt forming unit in an embodiment of a flexible blocking device of the present invention;

[0062] Fig.15 It is a front view of a light curtain belt forming unit in an embodiment of a flexible blocking device of the present invention;

[0063] Fig.16It is a partial stereoscopic diagram of a light curtain belt forming unit in an embodiment of a flexible blocking device of the present invention;

[0064] Fig.17 It is a partial stereoscopic view of a light curtain belt forming unit from another perspective in an embodiment of a flexible blocking device of the present invention;

[0065] Fig.18 for Fig.12 A partial enlarged view of the F in the middle;

[0066] Fig.19 This is a three-dimensional diagram of a flexible blocking device of the present invention after a module door panel is opened;

[0067] Fig. 20 A three-dimensional diagram of a flexible blocking device embodiment of the present invention viewed from above;

[0068] Fig.21 The schematic diagram of fluid analysis of laminar smoke outflow using an 8-shaped smoke deflector;

[0069] Fig. 22 It is a schematic diagram of fluid analysis of laminar smoke outflow when the middle of the smoke deflector is not connected;

[0070] Fig.23 It is a schematic diagram of Gaussian plume model coordinates;

[0071] Fig.24 A control schematic diagram of a flexible blocking device of the present invention;

[0072] Fig.25 The figure is a schematic diagram of the overall structure of a flexible blocking device of the present invention.

[0073] Marks and corresponding parts names in the attached drawings:

[0074] Box 1, wind speed monitor 101, red and blue flashing lights 102, road direction video monitoring unit 103, directional broadcast 104, display screen 105, module door panel 106, air door machine 1070, rainproof deflector 107, fluid inlet protection net 108, road side video monitoring unit 109, closed enclosure 110, mounting hole 111, mounting plate 1110, wire inlet hole 112, lifting ring 113, control system box 114, switch assembly 115, sealing plate 116, wire trough 117;

[0075] Smoke shaping unit 2, air inlet cover 201, fan 202, fan fan 2021, fan rotor 2022; smoke deflector 203, deflector grille 2031, deflector column 2032, closed surface 20321, deflector conical surface 20322, turbulent demarcation plate 2033, upper deflector 2034, lower deflector 2035, upper demarcation plate 2036, lower demarcation plate 2037, horizontal grid 2038; smoke storage tank 204, electronic ignition start line 2041, outlet 2042, smoke bomb 2043;

[0076] Light curtain belt molding unit 3, aspheric lens 301, heat dissipation base 302, LED lamp 303, high thermal conductivity aluminum substrate 3033, adjustment seat 304, mounting plate 30, lens pressure plate 305, lens fixing plate 306, adjustment threaded hole 307, positioning hole 308, locking threaded hole 309, protective door 310, slide rail 311, slider 312, driving member 313, guide block 314, limit rod 315, guide groove 316, guide steel ball 317, rib plate 318. DETAILED DESCRIPTION

[0077] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0078] Example 1

[0079] like Figure 1-Figure 2 As shown, this embodiment 1 provides a flexible blocking device, including a box body 1, a fluid inlet is opened on one side of the box body 1, a fluid outlet is opened on the other side of the box body 1, a smoke forming unit 2 is installed in the box body, and a light curtain belt forming unit 3 is also installed on one side of the box body.

[0080] The two fluid inlets are arranged vertically opposite to each other. In this embodiment, two rainproof flow guide covers 107 are connected to the outside of the box body 1, and the two fluid inlets are respectively located in the rainproof flow guide covers 107.

[0081] The two rainproof deflectors 107 are integrally formed with the box body 1 or connected by screws or welding. The rainproof deflector 107 is cylindrical in shape as a whole, and a rainproof deflector 107 structure that is wide at the top and narrow at the bottom is formed by oblique cutting on the cylindrical cover.

[0082] The box body 1 is equipped with a smoke forming unit 2, which is combined with Figure 3 As shown, the smoke forming unit 2 includes an air inlet cover 201, a fan 202 and a smoke guide cover 203 connected in sequence;

[0083] The air inlet cover 201 is installed at the fluid inlet, and a smoke storage tank 204 is arranged inside the air inlet cover 201. The chemical substances in the smoke storage tank 204 can generate smoke after being ignited; the fan 202 is an axial flow fan 202. The fan 202 has a fan blade 2021 and a fan rotor 2022 inside, and the fan blade 2021 faces the side of the smoke deflector cover 203;

[0084] Combination Figure 4 and Figure 5 As shown, a mounting hole matching the shape of the smoke deflector 203 is provided on the side of the box body 1 away from the fluid inlet. The smoke deflector 203 is located in the mounting hole and is fixed to the box body 1 by screws.

[0085] The smoke deflector 203 is in the shape of a figure 8. The smoke deflector 203 includes an upper deflector 2034 and a lower deflector 2035. The upper deflector 2034 and the lower deflector 2035 are hollow inside. The upper deflector 2034 and the lower deflector 2035 are connected to each other. Figure 3 As shown, in this embodiment, two fans 202 and two air inlet covers 201 are provided, and the two fans 202 and the two air inlet covers 201 are respectively arranged opposite to the upper air guide cover 2034 and the lower air guide cover 2035, and the two ends of the outer shell of the fan 202 are respectively connected to the air inlet cover 201 and the smoke guide cover 203 by screws, and the end of the air inlet cover 201 away from the fan 202 is connected to the box body 1 by screws.

[0086] In this embodiment, the upper air guide cover 2034 and the lower air guide cover 2035 are connected as one body through an arc transition, and a plurality of horizontal grilles distributed horizontally at intervals are connected to the middle position where the upper air guide cover 2034 and the lower air guide cover 2035 are connected to each other. The horizontal grilles can not only connect the upper air guide cover 2034 and the lower air guide cover 2035, but also make the spaces of the upper air guide cover 2034 and the lower air guide cover 2035 interconnected.

[0087] The upper air guide cover 2034 and the lower air guide cover 2035 are connected to each other on one side of the fan 202 in an 8-shaped smoke outlet. The smoke air guide cover 203 is connected to the fan 202 on one side of the fan 202 in an 8-shaped through hole. The smoke outlet is provided with an air guide grille 2031 surface. The air guide grille 2031 surface includes a plurality of air guide grilles 2031 arranged at vertical intervals. The air guide grille surface is installed on the fluid outlet. The shape of the fluid outlet matches the shape of the air guide grille surface.

[0088] Combination Figure 6 and Figure 7As shown, guide columns 2032 are provided in the upper guide cover 2034 and the lower guide cover 2035, and the two guide columns 2032 are connected to the guide grille 2031 surface. In this embodiment, the guide columns 2032 are welded and fixed to the guide grille 20312031 in the guide grille 2031 surface, and the two guide columns 2032 are coaxially arranged with the upper guide cover 2034 and the lower guide cover 2035 respectively. The end of the guide column 2032 away from the fan 202 is a closed surface 20321, and the other end of the guide column 2032 is a guide conical surface 20322. The closed surfaces 20321 of the two guide columns 2032 form a smoke outlet annulus with the inner sides of the upper guide cover 2034 and the lower guide cover 2035 respectively, and there is a distance between the vertex of the guide conical surface 20322 and the fan surface 2021 of the fan 202.

[0089] Combination Figure 4 As shown, in this embodiment, a horizontally arranged turbulence demarcation plate 2033 is connected to the middle position of the guide grille 2031 surface, and a horizontally arranged upper demarcation plate 2036 and a lower demarcation plate 2037 are respectively connected to the upper and lower parts of the guide grille 2031 surface, and the turbulence demarcation plate 2033, the upper demarcation plate 2036 and the lower demarcation plate 2037 are all laterally interspersed between a plurality of vertically arranged guide grilles 2031, and the widths of the turbulence demarcation plate 2033, the upper demarcation plate 2036 and the lower demarcation plate 2037 are all smaller than the width of the guide grille 2031. In this embodiment, one end of the turbulence demarcation plate 2033, the upper demarcation plate 2036 and the lower demarcation plate 2037 is flush with the outer side of the guide grille 2031 surface, and the widths of the turbulence demarcation plate 2033, the upper demarcation plate 2036 and the lower demarcation plate 2037 are about 1 / 4 of the width of the guide grille 2031. In this embodiment, the width of the guide grille 2031 is smaller than the width of the smoke guide cover 203 .

[0090] Specific:

[0091] Combination Figure 6 , Figure 7 , Figure 8 and Fig. 9 As shown, in this embodiment, the center distance L1 of the two guide columns 2032 is 600-700 mm, the angle r of the guide cone surface 20322 is 110-130°, the height h1 of the guide cone surface 20322 is 80-90 mm, the distance h2 between the vertex of the guide cone surface 20322 and the fan surface 2021 of the fan 202 is 35-45 mm, the width of the smoke outlet annular zone is 180-220 mm, the spacing j between two adjacent guide grilles 2031 is 15-20 mm, the width W1 of the guide grille 2031 is 115-130 mm, and the width W2 of the turbulent demarcation plate 2033, the upper demarcation plate 2036 and the lower demarcation plate 2037 are all 40-60 mm;

[0092] This embodiment is the best embodiment, the center distance L1 between the two guide columns 2032 is 650mm, the width L2 of the guide grille surface is 1150mm, the angle r of the guide cone surface 20322 is 120°, the height h1 of the guide cone surface 20322 is 87mm, the distance h2 between the vertex of the guide cone surface 20322 and the fan surface 2021 of the fan 202 is 38mm, the width of the smoke outlet ring is 200mm (that is, in this embodiment, the inner diameter of the smoke outlet ring is 300mm, the outer diameter is 500mm, and the closed surface diameter of the guide column is 300mm), the spacing j between two adjacent guide grilles 2031 is 17mm, the width W1 of the guide grille 2031 is 122mm, and the width W2 of the turbulent demarcation plate 2033, the upper demarcation plate 2036 and the lower demarcation plate 2037 are all 50mm.

[0093] In this embodiment, if the guide grille 2031 is set too wide, the wind speed will drop very quickly and the pressure loss will be smaller. However, in this case, the wind speed is small, and laminar flow cannot be achieved or the laminar flow effect is poor. The width design of the guide grille 2031 in this application has a small pressure loss and a small impact on the wind speed, and can effectively form a laminar flow. In addition, the guide cone surface 20322 in this embodiment has a large guide angle and a short height, which can compress the overall thickness and make the entire box more compact. In this way, the gap between the guide cone surface 20322 and the smoke guide cover 203 is larger, so that the smoke is less blocked by the inner wall of the smoke guide cover 203 when passing through, thereby reducing the pressure loss of the smoke flowing through and making the discharged smoke laminar flow more uniform.

[0094] Combination Fig.10 As shown, the two fluid inlets are both equipped with fluid inlet protection nets 108, which are fixed to the box body 1 by screws, and the smoke storage tank 204 is connected to the fluid inlet protection net 108 by screws. In this embodiment, the flow inlet area composed of the rainproof deflector 107 and the fluid inlet protection net 108 is between 60% and 100% of the diameter area of ​​the fan face 2021, and the best in this embodiment is 85%.

[0095] In this embodiment, eight smoke storage tanks 204 are provided. The eight smoke storage tanks 204 are evenly distributed along the circumference of the air inlet cover 201 , and the smoke storage tanks 204 are close to the inner section of the air inlet cover 201 .

[0096] Combination Fig.11As shown, in this embodiment, the smoke storage tank 204 includes a tank body and a smoke bomb 2043, the smoke bomb 2043 is located in the tank body, the tank body is connected to the fluid inlet protection net 108 by screws, the smoke bomb 2043 stores a chemical substance that can burn to produce colored smoke, the chemical substance is formed by superimposing saturated fatty acids and organic pigments, the smoke bomb 2043 can use the fire drama bomb in the prior art, the smoke bomb 2043 has a lead, and the smoke bomb 2043 is provided with an outlet 2042 for dispersing smoke, an electronic ignition component is installed on the box 1, the starter wire in the electronic ignition component is connected to the lead, the electronic ignition starter wire 2041 is connected to the smoke lead by two core wires, when one-button start, the control circuit installed in the box 1 drives the constant current switch power supply to release a pulsed large current, and the lead of the smoke storage device is ignited by the principle of large current and high resistance temperature rise; a chemical reaction occurs through combustion in the smoke bomb 2043 to produce colored smoke, and the electronic ignition technology belongs to a relatively mature technology in the prior art, which will not be repeated here.

[0097] Similar products on the market use a solution of high-pressure oil injection to form smoke. This type of solution uses aromatic hydrocarbon oils such as triglycerides. The initial injection startup cycle is long, generally 5-15S. At the same time, it is carried out under sunlight, and the smoke is not easy to be observed by drivers and passengers 100 meters away. This system uses saturated fatty acids and fats to superimpose organic pigments to burn chemical changes to form colored smoke, which can be clearly observed by drivers and passengers 100 meters away. The smoke emission time is short and can be controlled within 3S, effectively ensuring the effectiveness of the emergency startup plan.

[0098] In this embodiment, a mounting groove is opened on one side of the box body 1, and the light curtain belt forming unit 3 is installed in the mounting groove. In this embodiment, the mounting groove and the fluid outlet on the box body 1 are located on the same side, so that the light curtain belt forming unit 3 and the guide grille surface in the smoke forming unit 2 are located on the same side, so that the formed light curtain belt and the smoke emitted by the smoke forming unit are located on the same side, thereby forming a flexible blocking effect of the combination of light and smoke.

[0099] Specific: Combined Fig.12 , Fig.13 , Fig.14 and Fig.15 As shown, the light curtain belt forming unit 3 in this embodiment includes a mounting frame, a plurality of aspheric lenses 301 and a plurality of LED light sources. The mounting frame is hollow, and the plurality of aspheric lenses 301 and the plurality of LED light sources are vertically spaced apart along the mounting frame. The plurality of aspheric lenses 301 and the plurality of LED light sources are respectively arranged on both sides of the mounting frame opposite to each other.

[0100] The number of the multiple LED light sources and the multiple aspheric lenses 301 is the same, and the multiple LED light sources are respectively arranged opposite to the multiple aspheric lenses 301 in sequence, and the multiple LED light sources and the multiple aspheric lenses 301 are arranged linearly, that is, the multiple LED light sources and the multiple aspheric lenses 301 are arranged vertically and linearly. The light emitted by each LED light source is refracted by the multiple aspheric lenses 301 and then emitted in a straight line.

[0101] Combination Fig.14 and Fig.15 As shown, the mounting frame includes a mounting plate 30 for mounting an aspheric lens 301 and a heat sink base 302 for mounting an LED light source, and an adjustment seat 304 is connected between the heat sink base 302 and the mounting plate 30, so that the entire mounting frame is hollowed out. In this embodiment, the LED light source includes an LED lamp 303 and a high thermal conductivity aluminum substrate 3033, the pins of the LED lamp 303 are welded on the high thermal conductivity aluminum substrate 3033, and the high thermal conductivity aluminum substrate 3033 is connected to the heat sink base 302.

[0102] The mounting plate 30 includes a lens fixing plate 306 and a lens pressing plate 305. Both the lens fixing plate 306 and the lens pressing plate 305 are provided with through holes for mounting the aspheric lens 301. The mirror surface of the aspheric lens 301 passes through the through holes, and one end of the aspheric lens 301 is located between the lens fixing plate 306 and the lens pressing plate 305. The lens fixing plate 306 and the lens pressing plate 305 are connected to each other to fix the aspheric lens 301. In this embodiment, the lens fixing plate 306 and the lens pressing plate 305 are connected and fixed by rivets or screws, so that the aspheric lens 301 is installed and fixed.

[0103] In this embodiment, there are four mounting frames, which are arranged in sequence along the vertical direction of the mounting groove. In each mounting frame, the mounting plate 30 and the heat dissipation base 302 are connected by an adjustment seat 304. In this embodiment, each mounting frame is provided with two groups of adjustment seats 304, which are respectively located at the upper part and the lower part of the mounting frame, and the number of each group of adjustment seats 304 is two, so that each mounting frame has four adjustment seats 304, and the four adjustment seats 304 are distributed in a rectangular array. In this embodiment, each mounting frame has four aspherical lenses 301 and four LED light sources.

[0104] like Fig.15 As shown, the mounting plates 30 in the four mounting frames overlap and splice each other, so that there is no gap between the mounting plates 30, and there is a gap between the heat dissipation bases 302 in the four mounting frames, which can expand the heat dissipation flow space and path. Figure 2As shown, a rib plate 318 is installed in the mounting groove, and a receiving cavity is formed between the rib plate 318 and the mounting groove. The mounting plate 30 is fixedly connected to the rib plate 318 in the mounting groove by screws. The aspheric lens 301 on the mounting plate 30 protrudes from the outside of the rib plate 318 to prevent the rib plate 318 from blocking the aspheric lens 301 and affecting the light output effect. The heat dissipation base 302 and the adjustment seat 304 are located in the receiving cavity formed between the rib plate 318 and the mounting groove.

[0105] Combination Fig.12 and Fig.14 As shown, in this embodiment, the width d formed by the multiple aspheric lenses 301 is 1440 mm, the light output diameter D of the aspheric lens 301 is 55-65 mm, the spacing d2 between the tangents of the nearest side of two adjacent aspheric lenses 301 is 28-38 mm, the center distance d1 between two adjacent aspheric lenses 301 is 88-98 mm, and the spacing d3 between the aspheric lens 301 and the LED lamp 303 is 28-40 mm.

[0106] Preferably, the optimal size data in this embodiment is: the light output diameter D of the aspheric lens 301 is 60 mm, the spacing d2 between the tangents on the nearest side of two adjacent aspheric lenses 301 is 32 mm, the center distance d1 between two adjacent aspheric lenses 301 is 92 mm, and the spacing d3 between the aspheric lens 301 and the LED lamp 303 is 34 mm.

[0107] In this embodiment, a sealing strip is attached between the light curtain belt forming unit 3 and the installation groove for sealing, thereby achieving a waterproof effect.

[0108] The specific implementation process is as follows: In this embodiment, a uniformly distributed smoke jet flow is formed through the smoke deflector 203, with a width greater than 1150mm and a length that can be controlled to be above 5m according to the natural wind direction and wind speed of the environment. When in use, the device is symmetrically installed on both sides of the road, and the smoke deflectors 203 in the devices on both sides of the road are arranged opposite to each other, so that the formed smoke curtain wall can stably cover highways of various widths; in addition, the light curtain belt forming unit 3 in the device has a projection width of 1440mm, which can cooperate with the smoke curtain wall to form a uniform 1440mm width of the optimal visible concentration red light smoke belt, thereby improving the observation distance of the driver and passengers.

[0109] Combination Figure 7As shown, the external fluid is introduced into the air inlet cover 201 from the rainproof deflector 107 under the action of the fan 202. After the smoke bomb 2043 is ignited by the electronic ignition, the smoke is rotated at high speed by the fan fan 2021 to evenly disperse the smoke. The smoke fluid is guided from a turbulent state to a laminar state through the flow space composed of the guide cone surface 20322, the turbulent boundary plate 2033, and the guide grille 2031 to be ejected, forming a uniformly distributed smoke jet flow. The flow path is shown by the arrow.

[0110] Combination Fig.21 The figure shows a schematic diagram of fluid analysis of laminar smoke outflow using the 8-shaped smoke deflector 203 in this embodiment; the middle of the guide grille 2031 in this embodiment is connected, and the middle position is a non-enclosed structure, so that the smoke coming out of the smoke deflector 203 is continuous, and there is no discontinuity in the middle position to cause a broken smoke screen. In actual use, it can also be combined with a light strip to improve the blocking warning effect, and the light needs smoke as a medium to be visible. Therefore, the middle position of the guide grille 2031 in this application is connected, so that the smoke coming out is continuous. When combined with the light, a continuous and complete smoke strip will be formed to avoid discontinuity. Fig. 22 As shown, it is a schematic diagram of fluid analysis of laminar smoke outlet when the smoke deflector 203 is not connected in the middle. It can be seen that when the smoke deflector 203 is not connected in the middle, the smoke outlet laminar flow is uneven, and the formed smoke curtain wall is discontinuous and broken in the middle.

[0111] In addition, in the present embodiment, the smoke deflector is in the shape of an 8, so that the upper deflector and the lower deflector are arranged overlappingly up and down, and the upper deflector and the lower deflector are connected to each other, so as to avoid the discontinuity in the middle of the ejected smoke wall and the formation of a broken belt. The smoke wall formed in the present scheme is continuous, and under the action of the guide column and the vertically arranged guide grille, the smoke in the turbulent state can be converted into a laminar state and ejected, forming a uniformly distributed and regular smoke screen belt. The position of the laminar smoke at the ejection point is fixed, and the formed smoke screen belt is more stable, which is conducive to long-distance observation by the driver and passengers.

[0112] In this scheme, the smoke deflector is in the shape of an 8, not a rectangle. The closed surfaces of the two guide columns in the middle form a smoke outlet ring with the inner sides of the upper and lower deflectors, respectively, which can ensure sufficient wind speed. If there is no closed surface in the middle, and the end faces of the upper and lower deflectors are completely unobstructed smoke flow areas, the pressure loss is small, but the wind outlet area is large. Since the pressure and area are inversely proportional, the larger the wind outlet area, the closer the smoke blown out is, and the poorer the blocking effect is.

[0113] In the smoke deflector 203 with an 8-shaped structure, the closed surface 20321 on the guide column 2032 prevents the smoke from being directly emitted from the circumferential end surface of the entire smoke deflector 203. The smoke outlet ring belt cannot be too narrow. If it is too narrow, it will cause wind vortices in the smoke and it will be difficult to form laminar flow. The size of the smoke outlet ring belt given in this embodiment can ensure that there is sufficient wind speed when the air is discharged, forming a uniform laminar flow smoke curtain wall.

[0114] The light curtain belt forming unit in this embodiment includes a heat dissipation base 302, a high power density LED lamp 303, a high thermal conductivity aluminum substrate 3033, an adjustment seat 304, a lens pressure plate 305, a lens fixing plate 306, and an aspheric lens 301. The light emitted by the LED light source is collimated into a parallel light column after passing through the aspheric lens 301. Multiple light sources and multiple aspheric lenses 301 are arranged linearly to form a light curtain belt with a width of 1440 mm.

[0115] In this embodiment, the high-power density LED lamp 303 is tightly connected with the high-thermal-conductivity aluminum substrate 3033 and the heat dissipation base 302 to form an efficient heat conduction path and conduct convection and radiation heat dissipation through the heat dissipation base 302; at the same time, a hollow structure is formed between the lens fixing plate 306, the lens pressing plate 305, and the adjustment seat 304 and the heat dissipation base 302, which can reduce the convection heat transfer capacity of the front of the light source and improve the stability of the light output. In this solution, the mounting frame is hollowed out and the temperature rises within 5°C during normal operation, and the product has good operating stability.

[0116] Example 2

[0117] The difference between this embodiment and embodiment 1 is that: Fig.16 and Fig.17 As shown, in this embodiment, the adjusting seat 304 is provided with an adjusting member capable of adjusting the distance between the mounting plate 30 and the heat dissipation base 302. Specifically, in this embodiment, the adjusting member includes an adjusting screw and a locking screw, and an adjusting threaded hole 307, a positioning hole 308 and a locking threaded hole 309 are sequentially provided at a position corresponding to each adjusting seat 304 on the heat dissipation base 302 and on the adjusting seat 304, and a positioning hole 308 directly facing the heat dissipation base 302 is also provided on the mounting plate 30.

[0118] The position of the adjusting seat 304 is positioned by inserting a positioning screw into the positioning hole 308 of the mounting plate 30, the adjusting seat 304 and the positioning hole 308 on the heat dissipation base 302. One end of the adjusting screw passes through the adjusting threaded hole 307 on the heat dissipation base 302 and the adjusting seat 304 in turn and then abuts against the mounting plate 30.

[0119] In each set of mounting frames, the height is adjusted by rotating the adjusting screw thread depth to support the mounting plate 30, and the four heat dissipation bases 302 form a four-point adjustment (four points determine a plane), thereby ensuring that the plane formed by the lens pressing plate 305 and the lens fixing plate 306 forms a parallel structure with the heat dissipation base 302 on which the LED light source is installed, thereby ensuring the parallelism of the LED light source and the aspheric lens 301; after the adjustment is completed, it is fixed by the locking threaded hole 309 and the matching locking screw to prevent loosening from affecting dimensional stability.

[0120] In this embodiment, the aperture sizes of the adjusting threaded hole 307 and the locking threaded hole 309 are different. This makes it easy to accurately distinguish the threaded holes used to adjust the spacing between the mounting plate 30 and the heat dissipation base 302 during use, so that the adjustment directions and positions of the four adjustment seats 304 in each group of mounting frames remain consistent, thereby ensuring the parallelism between the aspheric lens 301 and the LED light source.

[0121] Example 3

[0122] Combination Fig.12 , Fig.13 As shown, the difference between this embodiment and embodiment 1 is that a protective door 310 is slidably connected in the installation groove, and the sliding protective door 310 can open or close the installation groove, and a driving member 313 for driving the protective door 310 to open and close is installed on the box body 1.

[0123] In this embodiment, the driving member 313 is a hydraulic cylinder or an electric cylinder. The driving member 313 is mounted on the rib plate 318, and the output end of the driving member 313 passes through one side of the protective door 310. A pin hole is provided at the output end of the driving member 313, and a pin is inserted into the pin hole to limit and fix the output end of the driving member 313 and the protective door 310. The installation method of the output end of the driving member 313 and the protective door 310 is not limited to the above one, and the fixing method and structure can be selected according to actual needs.

[0124] like Fig.13 As shown, the top wall of the installation groove is connected to a slide rail 311, the top of the protective door 310 is connected to a slider 312 by screws, the slider 312 is slidably matched with the slide rail 311, the bottom wall of the installation groove is connected to a guide block 314, the bottom of the protective door 310 is slidably matched with the guide block 314, and then combined with Fig.12 and Fig.18As shown, a guide groove 316 is provided on one side of the guide block 314 along the sliding direction of the protective door 310, and a limiting rod 315 is connected to the lower part of the protective door 310, one end of the limiting rod 315 is inserted into the guide groove 316 and can slide along the guide groove 316. In this embodiment, the limiting rod 315 is a screw, one end of the screw passes through the protective door 310 and is inserted into the guide groove 316. The limiting rod 315 can play a positioning role for the opening and closing states of the protective door 310. When the limiting rod 315 abuts against the left side of the guide groove 316, the protective door 310 is closed in place, and when the limiting rod 315 abuts against the right side of the guide groove 316, the protective door 310 is opened in place.

[0125] like Fig.18 As shown, in this embodiment, a plurality of guide steel balls 317 are installed at intervals on the top of the guide block 314 along the sliding direction of the protective door 310. In this embodiment, a plurality of recessed holes for installing the guide steel balls 317 are provided on the top of the guide block 314, and the guide steel balls 317 are embedded in the recessed holes; a groove is provided at the bottom of the protective door 310, and the groove cover at the bottom of the protective door 310 slides with the guide block 314 on the outside of the guide block 314, and the limiting rod 315 is fixed on one side of the groove of the protective door 310.

[0126] The protective door 310 structure and the light curtain belt forming unit 3 in this embodiment are controlled in linkage by the control circuit inside the device. When the function is started, the protective door 310 is first pushed open by the control drive 313, and then the light curtain belt forming unit 3 is opened; when the function is turned off, the light curtain belt forming unit 3 is closed, and then the drive 313 pulls the protective door 310 to close.

[0127] The protective door 310 is made of non-transparent material. The material of the protective door 310 in this embodiment can be made of stainless steel or other metal materials, so that the protective door 310 can not only protect the internal structure from dust, but also prevent the external sunlight from affecting the aspheric lens 301 when it is not in use. If the protective door 310 is made transparent, the external sunlight will pass through the protective door 310 to form a small light spot inside the installation groove, which is easy to burn the internal devices. In addition, the transparent protective door is usually made of glass or plastic. The glass protective door is difficult to shape, and the plastic and glass protective doors have poor weather resistance.

[0128] In this embodiment, the protection door 310 has a high protection level when closed, which can ensure that the surface of the aspheric lens 301 can be kept clean for a long time in any outdoor environment, and stably ensure the projection light band effect during use.

[0129] Example 4

[0130] The difference between this embodiment and embodiment 1 is that: Figure 1As shown, in this embodiment, a wind speed monitor 101 is installed on the top of the box 1, and the environmental wind speed and direction are monitored by the wind speed monitor 101. In this embodiment, a standardized fluid state can be determined by a systematic algorithm model, and a uniformly distributed smoke curtain wall in a laminar state can be effectively formed under environments with different wind speeds and directions, thereby ensuring consistency and safety in implementation under different weather environments.

[0131] Smoke can be obtained by superimposing two standard models in different wind speed environments, one is the atmospheric diffusion model and the other is the Gaussian plume model;

[0132] like Fig.23 As shown in the figure, the smoke flow state that meets the following four points can be simplified using the Gaussian plume model:

[0133] 1. The average flow field of the wind is stable, the wind speed is uniform, and the wind direction is straight;

[0134] 2. The y and z axis directions conform to normal distribution;

[0135] 3. The mass of smoke is conserved during transportation and diffusion;

[0136] 4. The smoke output source is uniform and continuous;

[0137] The general form of the Gaussian plume model is as follows:

[0138]

[0139] Among them, the X-axis direction of the coordinate system is the downwind direction, c is the concentration of any point with coordinates (x, y, z) calculated by the model, Q is the gas emission rate, U is the wind speed, y is the y coordinate of the point, that is, the crosswind distance, and z is the z coordinate of the point.

[0140] σy and σz are the atmospheric diffusion parameters in the y and z directions, respectively. The emission rate Q and wind speed U are directly related to the concentration C. The rest of the formula specifies the shape of the plume. For a three-dimensional plume, what is observed from the front is the cumulative distribution in the z direction. This distribution is the integral of the three-dimensional plume in the y direction. The plume shape can be described by the following formula:

[0141]

[0142] What is observed from the top view is the cumulative distribution in the y direction. This distribution is the integral of the three-dimensional plume in the z direction. The plume shape can be described by the following formula:

[0143]

[0144] Multiplying these two plane formulas gives the solid formula.

[0145] σy and σz are the atmospheric diffusion parameters in the y and z directions, respectively. Both are functions of atmospheric stability and wind direction distance x, and can be calculated using the following formula:

[0146] σy=ax^b;

[0147] σz=cx^d+f;

[0148] b is the regression index of the lateral diffusion parameter;

[0149] d is the regression index of vertical diffusion parameter;

[0150] a is the regression coefficient of the lateral diffusion parameter;

[0151] c is the regression coefficient of the vertical diffusion parameter;

[0152] x is the horizontal distance of the air outlet;

[0153] The parameters of the above formula are obtained by fitting through multiple actual test values.

[0154] The wind speed U in the above parameters can be obtained by testing with a wind speed monitor. The emission rate Q is designed based on the rotation speed of the axial flow fan, the static pressure of the air outlet, and the functional structures of the 8-shaped air outlet (turbulent boundary plate, guide cone surface, guide grille 2031 surface, etc.). The emission rate Q contains a hidden parameter, and the smoke outlet requires the smoke flow state to be laminar. Different emission rates Q are experimentally measured according to different wind speeds U to obtain the best fitting data under the laminar state.

[0155] This embodiment effectively controls the smoke concentration of the jet stream by dynamically controlling the fan speed at different wind speeds; by establishing a data model correlating different smoke concentrations with different vehicle speeds, it effectively ensures driving safety in various environments and plays a role in flexible smoke blocking.

[0156] Example 5

[0157] The difference between this embodiment and embodiment 1 is that: Figure 1 and Figure 2 As shown, a display screen 105 , a warning light and a directional broadcast 104 are installed on the side of the box body 1 facing the driving direction. The warning light and the directional broadcast 104 are located at the upper part of the box body 1 and above the display screen 105 .

[0158] In this embodiment, the display screen 105 adopts an LED display screen 105 with a dot pitch of 5 mm, the warning light adopts the red and blue flashing light 102 in the prior art, and the directional broadcast 104 adopts a long-distance directional broadcast 104 controlled by a multi-channel DSP wave speed.

[0159] In this embodiment, a direction video monitoring unit 103 and a roadside video monitoring unit 109 are also installed on the box body 1. The direction video monitoring unit 103 and the warning light are located on the same side and are centrally arranged, and the roadside video monitoring unit 109 is located on the same side as the guide grille surface and is located above the guide grille surface.

[0160] In this embodiment, two lifting rings 113 are connected to the top of the box body 1 to facilitate lifting.

[0161] Combination Fig.19 As shown, a control system box 114 is installed inside the box 1. In this embodiment, a cover plate 116 is installed inside the box 1 by screws. The control system box 114 is fixedly installed on the cover plate 116. A switch assembly 115 is installed on the control system box 114. A wire groove 117 is also installed on the cover plate 116. The cables used in the entire system can be located in the wire groove 117.

[0162] The control system inside the control system box 114 can control the start or shut down of the smoke forming unit and the light curtain belt forming unit, as well as control the start or shut down of the directional broadcast 104, the fan, the smoke storage tank, the red and blue flashing lights 102, and the display screen 105.

[0163] The control system in this embodiment is located in the control system box 114. The control system includes a battery, a control panel, a switch, a serial port server, etc. Fig.24 and Fig.25 As shown, this device has a one-button start function. The overall control circuit is controlled by a three-layer logical architecture (application layer, network layer and hardware layer). This device adopts a chemical smoke generation method with a fast smoke generation speed, and can complete the startup and smooth operation of all functions within 3S; similar products on the market use heating smoke generation with a slow smoke generation speed, and their startup time is greater than 5S; calculated based on a vehicle speed of 120Km / h, 66m can be traveled in 2S. This device can greatly improve emergency response capabilities and enhance safety induction capabilities.

[0164] In addition, this device can update the warning voice information and video image text information in real time based on the video data analysis in both the roadside and road directions, and determine the opening and closing status of the optical smoke component in real time; similar devices on the market have no real-time update strategy and no active correction function. They cannot make appropriate strategy updates based on the real-time blocking effect of the road section, and reasonably guide drivers and passengers to conduct orderly and safe guidance to avoid secondary accident injuries.

[0165] The specific implementation process is as follows:

[0166] The device forms a light-smoke curtain wall by mixing light and smoke; broadcasts accident content 104 over long distances in a directional manner through multi-channel DSP wave speed control; monitors ambient wind speed through a wind speed monitor 101 to adjust the smoke flow speed level and concentration of the device; issues dynamic video warnings or highlighted text warnings through a display screen 105; issues high-intensity warnings through red and blue flashing lights 102; observes real-time road condition information of blocked sections through video surveillance in both the roadside and road directions, collects and analyzes video data, and forms a combined strategy to update warning voice information and video, picture and text information, and determine the open and closed status of light-smoke components in real time; and accurately provides emergency risk avoidance safety guidance for drivers and passengers through multi-dimensional stimulus factors.

[0167] This equipment can be controlled locally or remotely, with an integrated management and control platform. It can be divided into functional components for manual independent control, one-button start linkage control, and automatic strategy control based on the environmental conditions of the installation location.

[0168] Example 6

[0169] The difference between this embodiment and embodiment 5 is that: Figure 1 As shown, in this embodiment, one side of the box body 1 is connected to the damper machine 1070 through a hinge, two fluid inlets are opened on the damper machine 1070, and two rainproof deflector covers 107 are also installed on the damper machine 1070, so that the interior of the box body 1 can be opened, which is convenient for installing and maintaining the internal components of the box body 1.

[0170] In this embodiment, a module door panel 106 that can be opened or closed is also installed on the box body 1 on the side where the display screen 105 is installed. The display screen 105 is installed on the module door panel 106. Fig.19 As shown, the control system box 114 is installed inside the box body 1 on one side of the module door panel 106. The control system box 114 can be inspected and installed by opening the module door panel 106. In normal use, the module door panel 106 is closed to seal and shield the inside of the box body 1 and the control system box 114. A sealing strip is provided inside the box body 1 for sealing to ensure the waterproof sealing of the box body 1.

[0171] Example 7

[0172] The difference between this embodiment and embodiment 1 is that: Fig. 20As shown, a closed enclosure 110 is connected to the bottom of the box body 1, and mounting holes 111 are provided around the bottom of the closed enclosure 110. A wire entry hole 112 is provided at the bottom of the box body 1, and the wire entry hole 112 is located inside the closed enclosure 110. Specifically: the closed enclosure 110 and the box body 1 are integrally formed, and a closed space is formed around the closed enclosure 110. Mounting plates 1110 are integrally connected to both sides of the closed enclosure 110, and mounting holes 111 are provided on the mounting plates 1110. This makes it convenient to fix the box body 1 on the ground by driving bolts into the mounting holes 111 on the mounting plates 1110 when installing and fixing the box body 1.

[0173] The wire entry hole 112 is located at the bottom of the box body 1 and inside the closed enclosure 110, so that it is convenient to insert the cables through the wire entry hole 112 and can shield and hide the cables.

[0174] In this embodiment, the closed enclosure 110 partially raises the bottom of the box body 1 , which can not only play a waterproof role, but also prevent animals from entering the box body 1 and damaging the components inside the box body 1 .

[0175] It should be noted that the above description of the disclosed embodiments enables professionals and technicians in the field to implement or use the present application. Various modifications to these embodiments will be apparent to professionals and technicians in the field, and the general principles defined herein can be implemented in other embodiments without departing from the scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but should conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A flexible blocking device, comprising a box, one side of the box is provided with a fluid inlet, and the other side of the box is provided with a fluid outlet, characterized in that: A smoke forming unit is installed in the box, and a light curtain belt forming unit is also installed on one side of the box; The smoke shaping unit comprises an air inlet hood, a fan and a smoke guide hood connected in sequence; The air inlet cover is installed at the fluid inlet, and a smoke storage tank is arranged in the air inlet cover, and the chemical substances in the smoke storage tank can generate smoke after being ignited; The smoke deflector comprises an upper deflector and a lower deflector, and a deflector grille surface is provided on one side of the upper deflector and the lower deflector away from the fan, and the deflector grille surface comprises a plurality of deflector grilles arranged at vertical intervals, and the deflector grille surface is installed on the fluid outlet; deflector columns are provided in both the upper deflector and the lower deflector, and two deflector columns are connected to the deflector grille surface, and one end of the deflector column away from the fan is a closed surface, and the other end of the deflector column is a deflection conical surface, and the closed surfaces of the two deflector columns respectively form a smoke outlet annulus with the inner sides of the upper deflector and the lower deflector; The light curtain belt forming unit is located on the same side as the guide grille surface in the smoke forming unit, and the light curtain belt forming unit includes a mounting frame, a plurality of aspheric lenses and a plurality of LED light sources. The mounting frame is hollow, and the plurality of aspheric lenses and the plurality of LED light sources are vertically spaced apart along the mounting frame. The plurality of aspheric lenses and the plurality of LED light sources are respectively arranged on both sides of the mounting frame facing each other.

2. A flexible blocking device according to claim 1, characterized in that: The upper air guide cover and the lower air guide cover are connected to each other on one side away from the fan as smoke outlets. The air guide grille surface is installed on the smoke outlet. The middle position of the air guide grille surface is connected to a horizontally arranged turbulent demarcation plate.

3. A flexible blocking device according to claim 1, characterized in that: Two of the fans and two of the air inlet covers are provided, and the two fans and the two air inlet covers are arranged opposite to the upper air guide cover and the lower air guide cover respectively.

4. A flexible blocking device according to claim 1, characterized in that: There are a plurality of smoke storage tanks, and the plurality of smoke storage tanks are evenly distributed along the circumference of the air inlet cover, and the smoke storage tanks are close to the inner section of the air inlet cover.

5. A flexible blocking device according to claim 1, characterized in that: A mounting groove is provided on one side of the box body, and the light curtain belt molding unit is installed in the mounting groove; the mounting frame includes a mounting plate for mounting the aspheric lens and a heat dissipation base for mounting the LED light source, and an adjustment seat is connected between the heat dissipation base and the mounting plate, and the adjustment seat is provided with an adjustment member capable of adjusting the distance between the mounting plate and the heat dissipation base.

6. A flexible blocking device according to claim 5, characterized in that: A protective door is slidably connected in the installation groove, and sliding the protective door can open or close the installation groove. A driving member for driving the protective door to open and close is installed on the box body.

7. A flexible blocking device according to any one of claims 1 to 6, characterized in that: A wind speed monitor is installed on the top of the box.

8. A flexible blocking device according to any one of claims 1 to 6, characterized in that: A display screen, a warning light and a directional broadcast are installed on one side of the box body facing the driving direction. The warning light and the directional broadcast are located at the upper part of the box body and above the display screen.

9. A flexible blocking device according to claim 8, characterized in that: The box body is also equipped with a direction video monitoring unit and a roadside video monitoring unit. The direction video monitoring unit and the warning light are located on the same side, and the roadside video monitoring unit and the guide grille surface are located on the same side.

10. A flexible blocking device according to claim 1, characterized in that: The bottom of the box body is connected to a closed enclosure, and a wire entry hole is opened at the bottom of the box body, and the wire entry hole is located inside the closed enclosure.

Images