Equipment for creating firebreaks and methods for controlling firebreak creation equipment

Abstract

This disclosure relates to a firebreak clearing device and a control method for the firebreak clearing device. The firebreak clearing device includes: an off-road chassis assembly (1) having wheels (11) and a non-load-bearing frame (12); a boom assembly (2) connected to the frame (12) and capable of telescoping and rotating relative to the frame (12); a preparation assembly (3) connected to the frame (12) and configured to prepare a flame retardant; a spraying assembly (4) disposed at the end of the boom assembly (2) and connected to the preparation assembly (3) via piping, and configured to spray the flame retardant; and a processor (5) configured to cause the spraying assembly (4) to spray the flame retardant onto the tree canopy during the movement of the off-road chassis assembly (1) to form a firebreak. The firebreak clearing device sprays while driving, meeting the requirements of rapid response in fire prevention and effectively preventing the spread of fire.

Description

Technical Field

[0001] This disclosure relates to the field of engineering machinery, and in particular to a barrier strip opening device and a control method for the barrier strip opening device. Background Technology

[0002] Forest fires severely endanger forest ecological security, and combustible materials are the material basis for forest fires. According to the mode of fire spread, forest fires can be divided into crown fires, surface fires, and underground fires, among which crown fires spread faster, reach greater heights, and are more difficult to control.

[0003] Related forest fire prevention equipment uses logging machinery to saw off excessively tall tree canopies to allow for more comprehensive foam coverage. Logging machinery is complex, especially for tall trees, which require heavy and bulky mobile chassis, limiting the mobility and flexibility of the machinery when moving through forests. Furthermore, the logging process is relatively slow, impacting fire suppression response speed. Summary of the Invention

[0004] In view of this, the present disclosure provides a firebreak clearing device and a firebreak clearing device control method, which can improve forest fire prevention efficiency.

[0005] In one aspect of this disclosure, a firebreak-opening device is provided for opening firebreaks in forests, comprising:

[0006] Off-road chassis components, featuring wheels and a non-load-bearing frame;

[0007] The boom assembly, connected to the chassis, is capable of telescoping and rotating relative to the chassis;

[0008] The component, connected to the vehicle frame, is configured to prepare a flame retardant.

[0009] The spraying assembly, located at the end of the boom assembly and connected to the preparation assembly piping, is configured to spray flame retardant; and

[0010] The processor, which is signal-connected to the off-road chassis assembly, boom assembly, preparation assembly, and spray assembly, is configured to cause the spray assembly to spray flame retardant onto the tree canopy to form a firebreak while the off-road chassis assembly is in motion.

[0011] In some embodiments, the processor is configured to adjust the travel speed of the off-road chassis assembly based on a preset spray thickness of the flame retardant.

[0012] In some embodiments, the driving speed of the off-road chassis assembly is the ratio of the spray flow rate of the spray assembly to the preset cross-sectional area of ​​the isolation strip.

[0013] The preset cross-sectional area of ​​the isolation zone is the product of the preset spray thickness of the flame retardant and the preset width of the isolation zone.

[0014] In some embodiments, the barrier clearing device further includes:

[0015] The camera device, connected to the spraying assembly, is configured to monitor the real-time spraying of flame retardant onto the tree canopy surface;

[0016] The horizontal and pitch angles of the injection assembly relative to the end of the boom assembly are adjustable.

[0017] The processor is signal-connected to the camera device and is configured to adjust the spray angle of the spray assembly based on the real-time spraying data acquired by the camera device.

[0018] In some embodiments, the boom assembly includes a folding boom and a luffing cylinder connected to the folding boom, the luffing cylinder being configured to adjust the spray position of the spray assembly by luffing the folding boom.

[0019] The processor is configured to adjust the spray position of the spray assembly via the boom assembly based on the real-time spraying data obtained from the camera device.

[0020] In some embodiments, the processor is configured to determine the actual spray thickness of the flame retardant based on the real-time spraying data acquired by the camera device, and to cause the spraying assembly to spray a second time on areas where the actual spray thickness is less than a preset spray thickness.

[0021] In some embodiments, the barrier clearing device further includes:

[0022] A sensor assembly, mounted on the chassis, is configured to detect the tilt angle of the chassis;

[0023] The processor is signal-connected to the sensor assembly and is configured to reduce the height of the boom assembly and / or decrease the vehicle's travel speed in response to the vehicle's tilt angle being greater than a preset tilt angle.

[0024] In some embodiments, the flame retardant is in foam form; the preparation components include:

[0025] The storage tank is configured to store the concentrate;

[0026] The pump body, and the delivery pipeline located between the storage tank and the injection assembly, are configured to pressurize the raw liquid; and

[0027] An air compressor, located in the delivery line between the liquid storage tank and the injection assembly and downstream of the pump body, is configured to inject air into the delivery line to convert the raw liquid into a foam-like flame retardant.

[0028] The processor is configured to adjust the ratio of injected air to raw liquid via an air compressor to regulate the state of the flame retardant.

[0029] In some embodiments, the overall height of the barrier clearing device is 3m to 4m, and the total length of the boom assembly is 12m to 14m.

[0030] In another aspect of this disclosure, a method for controlling a barrier zone opening device based on any of the above-mentioned barrier zone opening devices is provided, comprising:

[0031] During the operation of the off-road chassis assembly, the boom assembly drives the spraying assembly to spray flame retardant onto the tree canopy to form a firebreak.

[0032] In some embodiments, the barrier clearing device further includes:

[0033] The driving speed of the off-road chassis components is adjusted according to the preset spray thickness of the flame retardant.

[0034] In some embodiments, the firebreak clearing device further includes a camera device connected to the spraying assembly, configured to monitor the real-time spraying of flame retardant onto the canopy surface;

[0035] The control methods for the opening of the isolation zone also include:

[0036] Adjust the spray angle and / or spray position of the spray assembly based on the real-time spraying data obtained from the camera device.

[0037] In some embodiments, the barrier clearing device further includes a sensor assembly disposed on the vehicle frame and configured to detect the tilt angle of the vehicle frame;

[0038] The control methods for the opening of the isolation zone also include:

[0039] In response to the chassis tilt angle being greater than a preset tilt angle, the height of the boom assembly is reduced, and / or the chassis travel speed is decreased.

[0040] Therefore, according to the embodiments of this disclosure, the firebreak clearing device using an off-road chassis assembly as a mobile carrier can flexibly pass through forests. Compared with fire trucks in related technologies that can only spray at fixed points, the firebreak clearing device can spray while driving, thereby efficiently forming a firebreak on the tree canopy surface, meeting the requirements for rapid response in fire prevention, and effectively preventing the spread of fire. Attached Figure Description

[0041] The accompanying drawings, which form part of this specification, illustrate embodiments of this disclosure and, together with the specification, serve to explain the principles of this disclosure.

[0042] This disclosure will become clearer with reference to the accompanying drawings and the following detailed description, wherein:

[0043] Figure 1 These are schematic diagrams of some embodiments of the isolation zone opening device according to this disclosure;

[0044] Figure 2 These are schematic diagrams of other embodiments of the isolation zone opening device according to this disclosure;

[0045] Figure 3 This is a schematic diagram of the connection relationship according to some embodiments of the isolation zone opening device of this disclosure;

[0046] Figure 4 This is a schematic diagram showing the connection relationship between the preparation component and the spraying component according to some embodiments of the isolation zone opening device of this disclosure;

[0047] Figure 5 This is a flowchart of some embodiments of the isolation zone opening equipment control method according to the present disclosure.

[0048] In the picture:

[0049] 1. Off-road chassis components; 11. Wheels; 12. Frame;

[0050] 2. Boom assembly; 21. Folding boom; 22. Luffing cylinder;

[0051] 3. Preparation components; 31. Storage tank; 311. First chamber; 312. Second chamber; 32. Pump body; 321. First pump; 322. Second pump; 33. Air compressor; 34. Stirrer;

[0052] 4. Spraying assembly;

[0053] 5. Processor;

[0054] 6. Camera device;

[0055] 7. Sensor assembly;

[0056] 81. Turntable; 82. Reducer; 83. Hydraulic valve; 84. Hydraulic pump.

[0057] It should be understood that the dimensions of the various parts shown in the accompanying drawings are not drawn to actual scale. Furthermore, the same or similar reference numerals denote the same or similar components. Detailed Implementation

[0058] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The descriptions of the exemplary embodiments are merely illustrative and are in no way intended to limit the present disclosure or its application or use. The present disclosure may be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that the present disclosure will be thorough and complete, and will fully express the scope of the disclosure to those skilled in the art. It should be noted that, unless specifically stated otherwise, the relative arrangement of components and steps, the composition of materials, numerical expressions, and values ​​set forth in these embodiments should be interpreted as exemplary only and not as limiting.

[0059] The terms "first," "second," and similar words used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Words such as "including" or "contains" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well. Terms such as "above," "below," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, this relative positional relationship may also change accordingly.

[0060] In this disclosure, when a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device. When a specific device is described as being connected to other devices, the specific device may be directly connected to the other devices without an intermediary device, or it may be not directly connected to the other devices but have an intermediary device.

[0061] All terms used in this disclosure (including technical or scientific terms) have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in a general dictionary, such as a dictionary, should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and not as having an idealized or highly formalized meaning, unless expressly defined herein.

[0062] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0063] Related forest fire prevention equipment uses logging machinery to saw off excessively tall tree canopies to allow for more comprehensive foam coverage. Logging machinery is complex, especially for tall trees, which require heavy and bulky mobile chassis, limiting the mobility and flexibility of the machinery when moving through forests. Furthermore, the logging process is relatively slow, impacting fire suppression response speed.

[0064] The complete set of equipment consists of a mobile operation device and a foam generation device, which are connected by a tow pipe. The transportation and deployment of the entire set of equipment requires large supporting equipment such as trailers and cranes, which affects flexibility. Due to the large number of trees and obstacles in the forest, the telescopic tow pipe liquid supply method restricts the movement of the tow pipe, affecting the operation efficiency and effect.

[0065] In view of this, one aspect of the present disclosure provides a firebreak opening device for opening firebreaks in forests, which can improve forest fire prevention efficiency.

[0066] Figure 1 These are schematic diagrams illustrating the structure of some embodiments of the isolation zone opening device according to this disclosure. Figure 2 These are schematic diagrams illustrating the structure of other embodiments of the isolation zone opening device according to this disclosure. Figure 3 This is a schematic diagram of the connection relationship according to some embodiments of the isolation zone opening device of this disclosure, with reference to... Figures 1-3 The isolation zone opening equipment includes an off-road chassis assembly 1, a boom assembly 2, a preparation assembly 3, a spray assembly 4, and a processor 5.

[0067] The off-road chassis assembly 1 has wheels 11 and a non-load-bearing frame 12. The running gear uses wheels 11 instead of tracks, which provides greater mobility so that the firebreak opening equipment can establish a firebreak during the journey.

[0068] The non-load-bearing frame 12 is trapezoidal, including two parallel longitudinal beams and multiple crossbeams. The spacing between adjacent crossbeams decreases from the front to the rear of the frame 12. The longitudinal beams and crossbeams together form a non-load-bearing load-bearing frame, which has strong torsional resistance.

[0069] The off-road chassis component 1 includes, but is not limited to, the use of a solid axle non-independent suspension and a full-time four-wheel drive system, which has strong passability and flexibility, a large operating range, and high operating efficiency.

[0070] Boom assembly 2 is connected to frame 12 and is capable of telescoping and rotating relative to frame 12. Preparation assembly 3 is connected to frame 12 and is configured to prepare flame retardant. Spraying assembly 4 is located at the end of boom assembly 2 away from frame 12 and is connected to the pipeline of preparation assembly 3, and is configured to spray flame retardant.

[0071] The boom assembly 2 can switch to a folded state when the barrier clearing equipment is not in operation. The boom assembly 2 includes, but is not limited to, folding above the preparation assembly 3, so as to reduce the overall vehicle height and improve the passability of the barrier clearing equipment when not in operation.

[0072] The spraying assembly 4 includes, but is not limited to, a fire monitor. The fire monitor includes a monitor body, a rotating mechanism, and a nozzle. The rotating mechanism enables the nozzle to rotate horizontally and adjust its pitch angle, thus achieving high flow rate and long range spraying.

[0073] The processor 5 is signal-connected to the off-road chassis assembly 1, boom assembly 2, preparation assembly 3, and spray assembly 4, and is configured to cause the spray assembly 4 to spray flame retardant onto the tree canopy to form a firebreak during the movement of the off-road chassis assembly 1. The processor 5 may be located, but is not limited to, within the cab.

[0074] During the operation of the off-road chassis assembly 1, the processor 5 adjusts the spray position of the spray assembly 4 through the boom assembly 2 so that the spray assembly 4 is aimed at the tree crown and sprays flame retardant on the surface of the tree crown to form a barrier to prevent the spread of fire.

[0075] In this embodiment, the firebreak clearing device, which uses the off-road chassis component 1 as a mobile carrier, can move flexibly through the forest. Compared with fire trucks in related technologies that can only spray at fixed points, the firebreak clearing device can spray while driving, thereby efficiently forming a firebreak on the tree canopy surface, meeting the requirements for rapid response in fire prevention and effectively preventing the spread of fire.

[0076] In some embodiments, the processor 5 is configured to adjust the driving speed of the off-road chassis assembly 1 according to a preset spray thickness of the flame retardant. In this embodiment, by adjusting the driving speed of the firebreak clearing device during operation, the thickness of the flame retardant sprayed at the spray assembly 4 is made to meet the preset requirements, thereby forming a reliable and effective firebreak on the tree canopy surface, which avoids material waste and ensures fire extinguishing effect.

[0077] In some embodiments, the driving speed of the off-road chassis assembly 1 is the ratio of the spray flow rate of the spray assembly 4 to the preset cross-sectional area of ​​the isolation strip, and the preset cross-sectional area of ​​the isolation strip is the product of the preset spray thickness of the flame retardant and the preset width of the isolation strip.

[0078] The driving speed of the off-road chassis component 1 is the ratio of the spray flow rate of the spray component 4 to the preset cross-sectional area of ​​the isolation strip. The thickness of the flame retardant on the tree canopy surface can be adjusted to the preset spray thickness by adjusting the real-time driving speed of the off-road chassis component 1. For example, when the preset spray thickness is large, the driving speed of the off-road chassis component 1 is reduced to meet the spraying requirements.

[0079] Alternatively, while maintaining the required driving speed, the spray flow rate of the spray assembly 4 can be adjusted to achieve a preset spray thickness for the flame retardant on the tree canopy surface. For example, when the off-road chassis assembly 1 is traveling too fast, the spray flow rate of the spray assembly 4 can be increased.

[0080] In this embodiment, by flexibly adjusting the driving speed of the off-road chassis component 1 and / or the spraying flow rate of the spraying component 4, the fireproof isolation zone formed on the tree canopy surface can meet the fire prevention requirements, which has strong flexibility and a wide range of applications.

[0081] refer to Figure 1 and Figure 3 In some embodiments, the firebreak clearing device further includes a camera 6 connected to the spraying assembly 4 and configured to monitor the real-time spraying of flame retardant onto the canopy surface. The processor 5 may be equipped with a display to show the images captured by the camera 6 in real time.

[0082] The horizontal and pitch angles of the spray assembly 4 relative to the end of the boom assembly 2 are adjustable. The processor 5 is signal-connected to the camera device 6 and is configured to adjust the spray angle of the spray assembly 4 according to the real-time spray situation acquired by the camera device 6.

[0083] The processor 5 includes, but is not limited to, using visual recognition technology to analyze the flame retardant spraying effect image transmitted back by the camera device 6, including but not limited to determining the location of the sprayed flame retardant, the spray thickness of the sprayed flame retardant, the real-time width of the isolation zone, and other information through the flame retardant spraying effect image transmitted back by the camera device 6, so as to calibrate the spraying work.

[0084] By setting up a camera device 6, the spraying of flame retardant on the tree canopy surface can be monitored in real time. The processor 5 can determine the thickness and position of the flame retardant adhering to the tree canopy surface based on the real-time spraying data obtained by the camera device 6, and thus determine whether the spraying result meets the requirements. When the spraying position is not aligned with the tree canopy, the processor 5 can adjust the spraying angle of the spraying component 4 to achieve more precise spraying.

[0085] In this embodiment, the spraying angle of the spraying component 4 can be adjusted based on the image information obtained by the camera device 6, so that the canopy surface can more accurately form an isolation zone of preset width and thickness, thereby reliably meeting the fire prevention requirements and improving forest fire prevention safety.

[0086] refer to Figure 1 and Figure 2 In some embodiments, the boom assembly 2 includes a folding boom 21 and a luffing cylinder 22 connected to the folding boom 21. The luffing cylinder 22 is configured to adjust the spray position of the spray assembly 4 by luffing the folding boom 21. The processor 5 is configured to adjust the spray position of the spray assembly 4 via the boom assembly 2 based on real-time spraying data acquired by the camera device 6.

[0087] The folding boom 21 may be, but is not limited to, a three-section folding boom. During relocation, the folding boom 21 is folded and retracted to be placed on top of the liquid storage tank 31, resulting in a low overall height. The number of luffing cylinders 22 may be, but is not limited to, three. During operation, the folding boom 21 uses the three luffing cylinders 22 to change the amplitude, thereby achieving different working heights and amplitudes for the spray assembly 4.

[0088] Because the height of trees varies in different locations and of different species in the forest, and the distance between trees and roads also varies, for taller trees, the folding boom 21 is needed to lift the spraying assembly 4 higher.

[0089] The processor 5 can determine whether the flame retardant has been sprayed onto the tree canopy surface based on the image of the flame retardant spraying effect transmitted back by the camera device 6. If the flame retardant is sprayed outside the tree canopy, the processor 5 controls the boom cylinder 22 to extend and retract the folding boom 21, so that the spraying assembly 4 can approach the tree canopy surface and achieve more precise spraying.

[0090] In this embodiment, the processor 5 flexibly adjusts the position of the spraying component 4 by extending and retracting the boom assembly 2, enabling precise and reliable spraying of trees at different heights and distances. It has good adaptability, can efficiently cover all trees along the way, and can improve the safety of forest fire prevention.

[0091] In some embodiments, the processor 5 is configured to determine the actual spray thickness of the flame retardant based on the real-time spraying situation acquired by the camera device 6, and to cause the spraying assembly 4 to spray a second time on areas where the actual spray thickness is less than the preset spray thickness.

[0092] In this embodiment, when the actual spray thickness of the flame retardant is less than the preset spray thickness, the firebreak opening device is moved back to the area that was not sprayed to the correct position for a second spray, so that the firebreak can reliably meet the fire protection requirements.

[0093] refer to Figure 1 In some embodiments, the barrier clearing device further includes a sensor assembly 7 disposed on the frame 12 and configured to detect the tilt angle of the frame 12. The processor 5 is signal-connected to the sensor assembly 7 and configured to, in response to the tilt angle of the frame 12 being greater than a preset tilt angle, reduce the height of the boom assembly 2 and / or decrease the travel speed of the frame 12.

[0094] The sensor assembly 7 includes, but is not limited to, having four sensors, which are respectively set at the four corners of the frame 12. The processor 5 determines the tilt angle of the frame 12 based on the angle data obtained by the four sensors.

[0095] When the barrier clearing equipment is traveling on a road with a large slope and the tilt angle of the frame 12 is large, the extension and retraction of the boom assembly 2 is adjusted to lower the height of the boom assembly 2, thereby lowering the center of gravity of the entire vehicle and making the barrier clearing equipment more stable.

[0096] When the tilt angle of the frame 12 is large, the travel speed of the frame 12 can also be reduced, so as to improve the safety and stability of the barrier clearing equipment and improve its ability to pass through the forest.

[0097] In this embodiment, when the tilt angle of the frame 12 is large, the center of gravity of the barrier clearing equipment is lowered and made more stable by reducing the height of the boom assembly 2, and / or the travel speed is reduced, so that the barrier clearing equipment can travel more safely on dangerous road sections in the forest and meet the safety requirements of the whole machine operation on complex road surfaces.

[0098] refer to Figure 1 and Figure 4 In some embodiments, the flame retardant is in foam form, which can reduce water requirements and increase the coverage area and efficiency of a single vehicle's operation. The preparation component 3 includes: a storage tank 31, a pump body 32, and an air compressor 33. The storage tank 31 is configured to store the concentrate, and the pump body 32, located in the delivery pipeline between the storage tank 31 and the injection component 4, is configured to pressurize the concentrate.

[0099] The air compressor 33 is located in the delivery pipeline between the liquid storage tank 31 and the injection assembly 4 and downstream of the pump body 32. It is configured to inject air into the delivery pipeline to convert the raw liquid into a foam-like flame retardant.

[0100] The storage tank 31 may have a first cavity 311 and a second cavity 312, and the pump body 32 may have a first pump 321 and a second pump 322. The first pump 321 pumps the raw liquid in the first cavity 311 into the delivery pipeline, and the second pump 322 pumps the raw liquid in the second cavity 312 into the delivery pipeline.

[0101] The processor 5 is configured to adjust the ratio of injected air to concentrate via air compressor 33 to regulate the state of the flame retardant, thereby optimizing its quality and stability. The air-to-concentrate ratio may include, but is not limited to, 1:2, to achieve a flame retardant thickness of 20 mm. A stirrer 34 may be installed inside the storage tank 31 to improve the uniformity of the concentrate within the tank and enhance the fire extinguishing effect.

[0102] In this embodiment, by adjusting the ratio of gas to liquid, the flame retardant can form a stable covering layer on the tree canopy surface, effectively isolating oxygen and blocking heat radiation, thereby maximizing fire extinguishing efficiency and saving resources.

[0103] In some embodiments, the overall height of the barrier clearing device is 3m to 4m, and the total length of the boom assembly 2 is 12m to 14m.

[0104] In this embodiment, the overall height of the isolation strip clearing equipment is 3m to 4m, including but not limited to 3m2, which lowers the overall center of gravity of the machine, eliminates the influence of height restrictions, makes it more maneuverable and flexible, improves driving stability, and is more suitable for construction operations on unpaved roads such as mountainous forest areas.

[0105] The total length of boom assembly 2 is 12m to 14m, including but not limited to 13m. While meeting most of the forest fire prevention and control needs across the country, it achieves lightweight design as much as possible, thereby helping to improve the passability of firebreak clearing equipment and the feasibility of operating while driving.

[0106] The barrier clearing equipment also includes a turntable 81 and a reducer 82. The turntable 81 is mounted on the vehicle frame 12. The end of the boom assembly 2 furthest from the spray assembly 4 is connected to the turntable 81. The boom assembly 2 is configured to rotate relative to the vehicle frame 12, allowing for greater freedom of position adjustment of the spray assembly 4 and enabling more precise spraying over a wider area. The turntable 81 and the reducer 82 are bolted together, and the reducer 82 is bolted together to the vehicle frame 12. The reducer 82 has an angle feedback function.

[0107] The isolation zone opening equipment also includes a hydraulic valve 83 and a hydraulic pump 84. The hydraulic pump 84 is connected to the luffing cylinder 22 through a hydraulic flow path. The hydraulic valve 83 is located between the hydraulic pump 84 and the luffing cylinder 22 to realize the extension and retraction adjustment of the folding boom 21.

[0108] Figure 5 This is a flowchart of some embodiments of the control method for opening up isolation zones according to this disclosure, with reference to... Figure 5 In another aspect of the present disclosure, a method for controlling a barrier clearing device based on any of the above embodiments is provided, including step S1: during the driving of the off-road chassis assembly 1, the boom assembly 2 drives the spraying assembly 4 to spray flame retardant onto the tree canopy to form a barrier.

[0109] In this embodiment, compared to fire trucks in related technologies that can only spray at fixed points, the firebreak-opening equipment enables spraying operations while moving, thereby efficiently forming a firebreak on the tree canopy surface, meeting the requirements for rapid fire prevention response and effectively preventing the occurrence of fires.

[0110] refer to Figure 5 In some embodiments, the barrier opening device control method further includes step S2: adjusting the driving speed of the off-road chassis assembly 1 according to the preset spray thickness of the flame retardant.

[0111] In this embodiment, by adjusting the travel speed of the fire retardant spraying device during operation, the thickness of the flame retardant at the spraying point of the spraying component 4 can meet the preset requirements, thereby forming a reliable and effective fireproof firebreak on the tree canopy surface, which not only avoids material waste but also ensures the fire extinguishing effect.

[0112] In some embodiments, the firebreak clearing device further includes a camera device 6 connected to the spraying assembly 4, configured to monitor the real-time spraying of flame retardant onto the canopy surface. The firebreak clearing device control method further includes adjusting the spraying angle and / or spraying position of the spraying assembly 4 based on the real-time spraying data acquired by the camera device 6.

[0113] In this embodiment, the spraying angle of the spraying component 4 is adjusted based on the image information obtained by the camera device 6, so that the canopy surface can more accurately form an isolation zone of preset width and thickness, thereby reliably meeting the fire prevention requirements and improving forest fire prevention safety.

[0114] In some embodiments, the barrier clearing device further includes a sensor assembly 7 disposed on the vehicle frame 12 and configured to detect the tilt angle of the vehicle frame 12. The barrier clearing device control method further includes: in response to the tilt angle of the vehicle frame 12 being greater than a preset tilt angle, reducing the height of the boom assembly 2 and / or reducing the travel speed of the vehicle frame 12.

[0115] In this embodiment, when the tilt angle of the frame 12 is large, the center of gravity of the barrier clearing device is lowered and made more stable by reducing the height of the boom assembly 2, and / or the driving speed is reduced, so that the barrier clearing device can drive more safely in dangerous sections of the forest.

[0116] The following describes the working process of the equipment used to create a firebreak:

[0117] After the barrier clearing equipment arrives at the site, the hydraulic pump 84 is driven by the chassis power take-off to begin preparation for the entire machine to start operating. The agitator 34 starts to rotate to mix the raw liquid evenly. According to the tree height and the required width of the barrier clearing, the folding boom 21 starts to luff, the reducer 82 rotates, and the spraying assembly 4 is raised to the height of the tree top.

[0118] The information transmitted by the camera device 6 allows for manual or automatic adjustment of the horizontal and vertical angles of the spray assembly 4 via the processor 5, aligning the spray nozzles of the spray assembly 4 with the isolation zone to open up the work area.

[0119] The spray assembly 4 starts working, pressurizing the original liquid in the storage tank 31 and injecting it into the delivery pipeline. At the same time, the air compressor 33 injects pressurized air into the pipeline in the required proportion. After mixing with the original liquid, foam is formed and sprayed out through the spray assembly 4.

[0120] The isolation zone clearing equipment begins to travel along the planned isolation zone at the required speed. During the travel, the sensor component 7 will constantly detect the tilt angle of the whole machine. When the angle is greater than the tilt threshold, the operator will be warned and the movement of the folding boom 21 will be restricted.

[0121] The variable amplitude cylinder 22 has a length feedback function, the reducer 82 has a rotation angle feedback function, the horizontal pitch angle of the injection assembly 4 can be fed back, and the working posture of the injection assembly 4 can be adjusted and controlled in real time.

[0122] The camera device 6 can transmit images of the flame retardant spraying effect in real time. With the processor 5 as the logic operation carrier and the width of the isolation zone and the thickness of the flame retardant spraying as inputs, the device can achieve real-time adjustment of the travel speed of the isolation zone opening equipment, the rotation angle of the folding boom 21, and the horizontal pitch angle of the spraying component 4 through visual recognition technology, thus enabling unmanned opening of chemical isolation zones.

[0123] The embodiments of this disclosure have now been described in detail. To avoid obscuring the concept of this disclosure, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0124] While specific embodiments of this disclosure have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of this disclosure. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this disclosure. The scope of this disclosure is defined by the appended claims.

Claims

1. A device for creating a firebreak, characterized in that, Used to create firebreaks in forests, including: Off-road chassis assembly (1) with wheels (11) and a non-load-bearing frame (12). The boom assembly (2) is connected to the frame (12) and is capable of telescoping and rotating relative to the frame (12); The preparation component (3), connected to the frame (12), is configured to prepare a flame retardant, the flame retardant being in the form of foam; the spraying component (4), disposed at the end of the boom assembly (2) and connected to the pipeline of the preparation component (3), is configured to spray the flame retardant; A camera device (6), connected to the spraying assembly (4), is configured to monitor the real-time spraying of flame retardant onto the canopy surface, the spraying assembly (4) being adjustable in both horizontal and pitch angles relative to the end of the boom assembly (2); and The processor (5), which is signal connected to the off-road chassis assembly (1), the boom assembly (2), the preparation assembly (3), the spray assembly (4) and the camera device (6), is configured to cause the spray assembly (4) to spray flame retardant onto the tree canopy to form a firebreak during the driving of the off-road chassis assembly (1); The preparation component (3) includes a storage tank (31), a pump body (32) disposed in a delivery pipeline between the storage tank (31) and the injection component (4), and an air compressor (33) disposed in the delivery pipeline between the storage tank (31) and the injection component (4) and located downstream of the pump body (32). The storage tank (31) is configured to store the raw liquid, the pump body (32) is configured to pressurize the raw liquid, and the air compressor (33) is configured to inject air into the delivery pipeline to convert the raw liquid into a foam-like flame retardant. The processor (5) is also configured to adjust the driving speed of the off-road chassis assembly (1) according to the preset spray thickness of the flame retardant, adjust the spray angle of the spray assembly (4) according to the real-time spray situation obtained by the camera device (6), and adjust the ratio of injected air to original liquid through the air compressor (33) to adjust the state of the flame retardant.

2. The isolation zone opening device as described in claim 1, characterized in that, The driving speed of the off-road chassis assembly (1) is the ratio of the spray flow rate of the spray assembly (4) to the preset cross-sectional area of ​​the isolation strip; The preset cross-sectional area of ​​the isolation strip is the product of the preset spray thickness of the flame retardant and the preset width of the isolation strip.

3. The isolation zone opening device as described in claim 1, characterized in that, The boom assembly (2) includes a folding boom (21) and a luffing cylinder (22) connected to the folding boom (21), the luffing cylinder (22) being configured to adjust the spraying position of the spraying assembly (4) by luffing the folding boom (21); The processor (5) is configured to adjust the spray position of the spray assembly (4) via the boom assembly (2) based on the real-time spray situation obtained by the camera device (6).

4. The isolation zone opening device as described in claim 2 or 3, characterized in that, The processor (5) is configured to determine the actual spray thickness of the flame retardant based on the real-time spraying information obtained by the camera device (6), and to make the spraying assembly (4) spray a second time on the area where the actual spray thickness is less than the preset spray thickness.

5. The isolation zone opening device as described in claim 1, characterized in that, Also includes: A sensor assembly (7), disposed on the frame (12), is configured to detect the tilt angle of the frame (12); The processor (5) is signal-connected to the sensor assembly (7) and is configured to reduce the height of the boom assembly (2) and / or reduce the travel speed of the frame (12) in response to the tilt angle of the frame (12) being greater than a preset tilt angle.

6. The isolation zone opening device as described in claim 1, characterized in that, The overall height of the isolation zone opening device is 3m~4m, and the total length of the boom assembly (2) is 12m~14m.

7. A control method for a barrier clearing device based on the barrier clearing device according to any one of claims 1 to 6, characterized in that, include: During the driving of the off-road chassis assembly (1), the boom assembly (2) drives the spray assembly (4) to spray flame retardant onto the tree canopy to form a firebreak.

8. The method for controlling the opening of a safety barrier as described in claim 7, characterized in that, Also includes: The driving speed of the off-road chassis assembly (1) is adjusted according to the preset spray thickness of the flame retardant.

9. The method for controlling the isolation zone opening equipment as described in claim 7, characterized in that, The firebreak opening device also includes a camera device (6) connected to the spraying assembly (4), configured to monitor the real-time spraying of flame retardant on the canopy surface; The control methods for the opening of the isolation zone also include: Based on the real-time spraying situation obtained by the camera device (6), adjust the spraying angle of the spraying component (4) and / or the spraying position of the spraying component (4).

10. The method for controlling the isolation zone opening equipment as described in claim 7, characterized in that, The barrier clearing device also includes a sensor assembly (7) disposed on the frame (12) and configured to detect the tilt angle of the frame (12); The control methods for the opening of the isolation zone also include: In response to the tilt angle of the frame (12) being greater than a preset tilt angle, the height of the boom assembly (2) is reduced, and / or the travel speed of the frame (12) is reduced.

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