A new type of fire rescue vehicle-mounted long-range spraying device

Abstract

The application relates to the field of fire-fighting spray technology and particularly relates to a novel vehicle-mounted long-range spray device for fire-fighting rescue, which comprises a fire engine and a fog gun arranged at the tail of the fire engine, and a water ring is arranged at the muzzle of the fog gun. The novel vehicle-mounted long-range spray device for fire-fighting rescue can accurately split and guide the airflow of the fog gun through the half-spiral structure of the helical blade, can re-converge the diffused water mist into the main airflow to reduce the water mist loss and improve the long-range spray effect, and can switch the helical blade to the expansion spray mode to expand the close-range spray coverage, so that the efficient spray effect of long-distance accurate attack and close-distance comprehensive suppression is realized, the flexibility of the fire-fighting operation is obviously improved, the water mist is concentrated in the spray head to enhance the range when the fog gun sprays upward, the water mist is diffused to expand the coverage when the fog gun sprays downward, the intelligent matching of the spray angle and the water mist state is realized, and the operation steps of the firemen are reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of fire-fighting spray technology, in particular to a novel vehicle-mounted long-range spray device for fire rescue. BACKGROUND

[0002] In the process of fire rescue, the spray effect of the vehicle-mounted fog gun, as an important fire-fighting equipment, directly affects the rescue efficiency. The existing vehicle-mounted fog gun has the problem of low water mist utilization rate in use. Part of the water mist is not fully mixed into the airflow and is dispersed and wasted, resulting in poor long-range effect. At the same time, the spray mode is relatively single, and it is difficult to simultaneously meet the requirements of long-distance precise spraying and short-distance wide-range coverage. When adjusting the spray angle, manual operation is required to switch the water mist state, which is complicated and has a lagging response, affecting the time efficiency in emergency rescue.

[0003] The inventor found the following problems in the process of implementing the existing fire-fighting fog gun: first, the water mist is easy to disperse during spraying, and the mixing efficiency with the airflow is low, causing waste of water resources and reducing the fire-fighting effect; second, the range and coverage of the spray are not flexible enough, and cannot be quickly switched according to different rescue scenarios; third, when adjusting the spray angle, the switching of the water mist state depends on manual operation, which has a low degree of automation and affects the rescue efficiency.

[0004] In view of this, we propose a novel vehicle-mounted long-range spray device for fire rescue. SUMMARY

[0005] The present application aims to provide a novel vehicle-mounted long-range spray device for fire rescue to solve the problems of low water mist utilization rate, poor flexibility of spray adjustment, and complicated switching of water mist state when adjusting the spray angle. To achieve the above-mentioned purpose, the present application provides the following technical solution: a novel vehicle-mounted long-range spray device for fire rescue, comprising a fire engine and a fog gun arranged at the tail of the fire engine, and a water ring arranged at the muzzle of the fog gun, the water ring being fixed on the fog gun by a iron buckle, and a spray head connected to the water ring by a pipeline being arranged on the water ring.

[0006] An annular groove is formed in the spray head, and an annular frame is rotatably arranged in the annular groove. A helical blade for splitting and guiding the airflow of the fog gun is fixed on one side of the annular frame, and the helical blade has a one-half helical structure.

[0007] Preferably, the spray head corresponds in position to the iron buckle, and a horizontal pipe with sealed two ends is fixed on the iron buckle. A rolling ball is arranged in the horizontal pipe, and a top spring for pushing the rolling ball is arranged at both ends of the horizontal pipe. When the horizontal pipe is inclined, the rolling ball compresses the top spring at the low end to move.

[0008] The water ring is provided with a support, and two air bags are fixedly arranged on the two sides of the support, and the two air bags are connected with the two ends of the horizontal pipe through a hose respectively.

[0009] The spray head is rotationally arranged on the support, and the tail of the spray head is provided with two connecting plates, the two connecting plates are connected with the two air bags respectively, and the two connecting plates are oppositely distributed along the air bags, and the two air bags respectively push the spray head to swing in and out along the barrel.

[0010] Preferably, an arc-shaped air-tight groove is arranged on the inner side of the ring groove, and an air-tight pin is fixedly arranged on the ring support and located in the air-tight groove.

[0011] One of the hoses is connected with the air-tight groove through a branch pipe, and the branch pipe is used for air injection and air suction to drive the ring support and the spiral blade to switch positions.

[0012] Preferably, a detachable filter screen is arranged at the nozzle of the spray head, and the mesh number of the filter screen is 80-120.

[0013] Preferably, a rubber pad is arranged on the inner side of the iron buckle, and the thickness of the rubber pad is 2-5 mm.

[0014] Preferably, a high-temperature-resistant and corrosion-resistant coating is coated on the surface of the spiral blade, and the thickness of the coating is 0.1-0.3 mm.

[0015] Preferably, the horizontal pipe is made of stainless steel.

[0016] Preferably, the outer surface of the air bag is wrapped with a wear-resistant cloth sleeve, and the material of the cloth sleeve is nylon.

[0017] A use method of a new type of vehicle-mounted long-range spray device for fire rescue, comprising the following steps:

[0018] S1, start the fog gun blower, and start the water ring water supply system at the same time, the water ring delivers water to the spray head through the pipeline, the spray head sprays water mist to the fog gun barrel, the airflow generated by the fog gun blower blows the water mist forward, at this time, the spiral blade on the ring support is in the initial spiral state, the spiral blade divides and guides the airflow of the fog gun, re-enters the main airflow the part of the water mist sprayed by the spray head, improves the mixing efficiency of the water mist and the airflow, and enhances the spray range.

[0019] S2, when the fog gun is adjusted to swing up to adjust the spray angle, the horizontal pipe is tilted synchronously with the fog gun, the ball moves to the low end under the action of gravity and compresses the corresponding top spring, air in the horizontal pipe is pressed into the air bag on the same side, the air bag expands and pushes the nozzle to the inside of the barrel through the connecting plate, so that the water mist is concentrated in the middle of the airflow, the droplets are aggregated and weighted, and the long range is improved; when the fog gun swings down, the horizontal pipe is tilted in the opposite direction, the ball moves to the low end on the other side and compresses the corresponding top spring, air is pressed into the air bag on the other side, the air bag expands and pushes the nozzle to the outside of the barrel through the connecting plate, so that the water mist is diffused, and the demand for close-range fire extinguishing is met.

[0020] S3, when the fog gun swings down, the branch pipe injects air into the air-tight groove, the gas acts on the air-tight pin in the air-tight groove, drives the ring frame and the spiral blade to rotate by 180 degrees (switches to the spiral state on the other side), the spiral blade guides the airflow outward, so that the convergent spray airflow is converted into the expansion spray mode; when the fog gun swings up, the hose reversely draws air along the branch pipe, so that the spiral blade resets and re-directs the diffused water mist into the main airflow.

[0021] Compared with the prior art, the beneficial effects of the present application are:

[0022] In the present application, the airflow of the fog gun can be precisely divided and guided by the half-spiral structure of the spiral blade, which can re-converge the diffused water mist into the main airflow, reduce water mist loss to improve the long-range convergent spray effect, and switch to the expansion spray mode by rotating the spiral blade, so as to expand the close-range spray coverage and achieve the high-efficiency spray effect of "long-range precision attack and close-range comprehensive suppression", thereby significantly improving the flexibility of fire extinguishing operation.

[0023] In the present application, the gravity movement of the ball in the horizontal pipe with the pitch angle of the fog gun can automatically drive the air bag to drive the nozzle to swing inward and outward, without the need for additional manual adjustment: when the nozzle swings inward, the water mist is concentrated to enhance the range, and when the nozzle swings outward, the water mist is diffused to expand the coverage, so that the intelligent matching of the spray angle and the water mist state is realized, the operation steps of the firefighter are reduced, and the response speed in emergency rescue is improved.

[0024] In the present application, the spiral blade and the nozzle swing structure are linked, the spiral blade is rotated and the air bag is actuated synchronously by injecting and drawing air through the hose when switching the spray mode (convergent spray / expansion spray), so as to ensure that the airflow guidance and the water mist state are always matched. At the same time, the overall structure is integrated with the fire truck, which can adapt to the rapid deployment demand in complex fire scene environment and effectively improve the actual combat effectiveness of fire rescue. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the present application;

[0026] Figure 2 It is an enlarged view of A in the present application; Figure 1 ​

[0027] Figure 3 isometric view of the fog gun of the present application;

[0028] Figure 4 isometric view of the water ring, nozzle and horizontal pipe of the present application;

[0029] Figure 5 isometric view of the horizontal pipe of the present application;

[0030] Figure 6 isometric view of the support, air bag and nozzle of the present application;

[0031] Figure 7 isometric view of the air-tight groove and air-tight pin of the present application.

[0032] In the figure: 1, fire truck; 2, fog gun; 3, iron buckle; 4, water ring; 5, nozzle; 6, ring groove; 7, ring support; 8, spiral piece; 9, horizontal pipe; 10, rolling ball; 11, top spring; 12, support; 13, air bag; 14, hose; 15, connecting plate; 16, air-tight groove; 17, air-tight pin; 18, branch pipe. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0034] Please refer to Figures 1 to 7 The present application provides a technical solution: a new fire-fighting and rescue vehicle-mounted long-range spraying device, which comprises a fire truck 1 and a fog gun 2 arranged at the tail of the fire truck 1. The muzzle of the fog gun 2 is provided with a water ring 4, the water ring 4 is fixed on the fog gun 2 by an iron buckle 3, and the water ring 4 is provided with a nozzle 5 connected to the water ring 4 by a pipeline.

[0035] The nozzle 5 can receive the high-pressure water flow delivered by the water ring 4 through the pipeline, and spray the atomized water flow to the muzzle area of the fog gun 2, forming a water mist layer covering the cross section of the muzzle, to provide a basic atomization medium for subsequent airflow delivery.

[0036] The nozzle 5 is provided with a ring groove 6, and the ring groove 6 is rotatably provided with a ring support 7. The ring support 7 is fixedly provided with a spiral piece 8 on one side for shunting and guiding the airflow of the fog gun 2, and the spiral piece 8 is a one-half spiral structure.

[0037] The spiral blade 8 can guide the dispersed water mist sprayed by the nozzle 5 to the main airflow direction in the initial state, reducing water mist loss. When the ring frame 7 drives the spiral blade 8 to rotate 180°, the airflow direction can be changed to make the main airflow diffuse to both sides, adapting to the requirement of close-range large-area spraying.

[0038] In this embodiment, as shown in Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figures 5 to 7 The nozzle 5 corresponds to the position of the iron buckle 3, and the iron buckle 3 is fixedly provided with a horizontal pipe 9 with sealed two ends. The horizontal pipe 9 is provided with a rolling ball 10, and the horizontal pipe 9 is provided with a top spring 11 at both ends to push the rolling ball 10. When the horizontal pipe 9 is inclined, the rolling ball 10 compresses the top spring 11 at the low end to move.

[0039] The rolling ball 10 can freely roll with the change of the inclination angle of the horizontal pipe 9. The elastic force of the top spring 11 can ensure that the rolling ball 10 remains in the central position when the horizontal pipe 9 is in a horizontal state, avoiding false action of the nozzle 5 when the device is stationary.

[0040] The water ring 4 is provided with a support 12, and two air bags 13 are fixedly arranged on both sides of the support 12. The two air bags 13 are connected to both ends of the horizontal pipe 9 through a hose 14. When the rolling ball 10 moves bidirectionally, it respectively squeezes the corresponding air bag 13. The support 12 is provided with a lug plate corresponding to the air bag 13, and the air bag 13 is installed on the lug plate.

[0041] The air bag 13 is made of elastic material and can change in length by inflation and deflation. When the rolling ball 10 moves to one end of the horizontal pipe 9, the air at this end is squeezed into the corresponding air bag 13, causing the air bag 13 to generate a pushing force on the nozzle 5.

[0042] The nozzle 5 is rotatably arranged on the support 12, and the tail of the nozzle 5 is provided with two connecting plates 15. The two connecting plates 15 are respectively connected to the two air bags 13, and the two connecting plates 15 are oppositely distributed along the two air bags 13, i.e. one connecting plate 15 is located at the lower part of the air bag 13 on one side, and the other connecting plate 15 is located at the upper part of the air bag 13 on the other side. The two air bags 13 respectively push the connecting plate 15 and the nozzle 5 to swing inward and outward along the barrel by taking the lug plate on the same side as the base point.

[0043] The connecting plate 15 can convert the linear expansion and contraction movement of the air bag 13 into the rotary movement of the nozzle 5. When one side of the air bag 13 expands, it pushes the nozzle 5 to swing to that side through the connecting plate 15, realizing accurate adjustment of the water mist spraying direction and meeting the spraying requirement at different angles.

[0044] In this embodiment, as shown in Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 ,Figures 5 to 7 As shown, the inner side of the ring groove 6 is provided with an arc-shaped air-tight groove 16, and the air-tight pin 17 is fixedly arranged on the ring frame 7 and located in the air-tight groove 16.

[0045] The air-tight groove 16 and the air-tight pin 17 form a sealing fit structure, which can drive the ring frame 7 to rotate through gas pressure, and at the same time ensure that the gas in the air-tight groove 16 does not leak, thereby ensuring the stability of the position switching of the spiral blade 8.

[0046] One of the hoses 14 is connected to the air-tight groove 16 through the branch pipe 18, and the branch pipe 18 is used to inject or suck gas to drive the ring frame 7 and the spiral blade 8 to switch positions.

[0047] When the hose 14 inflates or deflates the air bag 13, the gas can enter or exit the air-tight groove 16 through the branch pipe 18 synchronously, and the air-tight pin 17 is driven to slide along the air-tight groove 16 by using the pressure difference of the gas, thereby driving the ring frame 7 and the spiral blade 8 to rotate, realizing the rapid switching of the two working modes of the spiral blade 8, and the switching process is linked with the deflection action of the nozzle 5, ensuring that the airflow guide and the water mist state always match.

[0048] In this embodiment, as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 7 The nozzle 5 is provided with a detachable filter screen at the nozzle opening, and the mesh number of the filter screen is 80-120 meshes, which can effectively filter impurities and particles in water, avoid blocking the nozzle 5 and affecting the spraying effect, and ensure the uniformity and continuity of the spraying. The detachable design facilitates regular cleaning or replacement of the filter screen, and the maintenance operation is simple and convenient.

[0049] In this embodiment, as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 7 The inner side of the iron buckle 3 is provided with a rubber pad, and the thickness of the rubber pad is 2-5 mm. The rubber has good elasticity and sealing property, can increase the friction between the iron buckle 3 and the fog gun 2, make the fixation of the water ring 4 more stable, and prevent the water ring 4 from loosening due to vibration during the operation of the device. At the same time, it can reduce the wear of the contact part between the iron buckle 3 and the fog gun 2, and play a buffering protection role.

[0050] In this embodiment, as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 7As shown, the surface of the helical fin 8 is coated with a high-temperature-resistant anticorrosive coating, the thickness of the coating is 0.1-0.3mm, the fire rescue site environment is complex, there may be high temperature and corrosive substances, this coating can improve the high-temperature-resistant performance of the helical fin 8, so that it maintains stable structure and performance in high-temperature airflow. At the same time, it can resist the erosion of corrosive substances and prolong the service life of the helical fin 8.

[0051] In this embodiment, as shown in Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figures 5 to 7 As shown, the horizontal pipe 9 is made of stainless steel, which has excellent corrosion resistance and can prevent rust inside the horizontal pipe 9 due to long-term contact with water or air, ensuring smooth movement of the ball 10 in the pipe and precise control of the angle adjustment of the nozzle 5 by the horizontal pipe 9. The stainless steel material has high strength and is not easy to deform, improving the overall durability of the horizontal pipe 9.

[0052] In this embodiment, as shown in Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figures 5 to 7 Figure 1 Figure 2 Figure 3 Figure 4 Figures 5 to 7 Figure 1 Figure 2 Figure 3 Figure 4 Figures 5 to 7 As shown, the outer surface of the air bag 13 is wrapped with a wear-resistant cloth cover, the material of the cloth cover is nylon, which has excellent wear resistance, the cloth cover can effectively protect the air bag 13 from damage caused by external friction, scratching, etc., avoid damage to the air bag 13 during frequent expansion and contraction, and contact with other parts, prolong the service life of the air bag 13, and ensure its normal inflation and pushing functions.

[0053] A use method of a new type of fire rescue vehicle-mounted long-range spray device, comprising the following steps:

[0054] S1, start the fog gun 2 fan, and open the water ring 4 water supply system, the water ring 4 delivers water to the nozzle 5 through the pipeline, the nozzle 5 sprays water mist to the muzzle of the fog gun 2, the airflow generated by the fog gun 2 fan blows the water mist forward, at this time, the helical fin 8 on the ring frame 7 is in the initial helical state, which divides and guides the airflow of the fog gun 2, re-introduces the dispersed part of the water mist sprayed by the nozzle 5 into the main airflow, improves the mixing efficiency of the water mist and the airflow, and enhances the spray range.

[0055] S2, when the fog gun 2 is adjusted to swing upward to adjust the spray angle, the horizontal pipe 9 is tilted synchronously with the fog gun 2, the ball 10 moves to the low end under the action of gravity and compresses the corresponding top spring 11, the air in the horizontal pipe 9 is pressed into the air bag 13 on the same side, the air bag 13 expands and pushes the nozzle 5 to the inside of the barrel through the connecting plate 15, so that the water mist is concentrated in the middle of the airflow, the droplets are aggregated and weighted, and the long-range is improved. When the fog gun 2 swings downward, the horizontal pipe 9 is tilted in the opposite direction, the ball 10 moves to the low end on the other side and compresses the corresponding top spring 11, air is pressed into the air bag 13 on the other side, the air bag 13 expands and pushes the nozzle 5 to the outside of the barrel through the connecting plate 15, so as to expand the diffusion range of the water mist and meet the needs of close-range fire extinguishing.

[0056] S3, when the fog gun 2 swings downward, the pipe 18 injects gas into the air-tight groove 16, the gas acts on the air-tight pin 17 in the air-tight groove 16, pushes the ring frame 7 and the spiral blade 8 to rotate 180° and switches to the spiral state on the other side, the spiral blade 8 guides the airflow outward, so that the convergent spray airflow is converted into the expansion spray mode. When the fog gun 2 swings upward, the hose 14 reverses the air injection along the pipe 18, so that the spiral blade 8 is reset and the dispersed water mist is guided into the main airflow again.

[0057] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above-mentioned embodiments, the above-mentioned embodiments and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A novel fire rescue vehicle mounted long range spray device, characterized in that, The utility model relates to a fire engine (1) and a fog gun (2) arranged at the tail of the fire engine (1), wherein the muzzle of the fog gun (2) is provided with a water ring (4) fixed by a iron buckle (3), and the water ring (4) is provided with a nozzle (5) connected by a pipeline. An annular groove (6) is formed in the nozzle (5), and an annular frame (7) is rotatably arranged in the annular groove (6); one side of the annular frame (7) is fixedly provided with a helical blade (8) for shunting and guiding the airflow of the fog gun (2), and the helical blade (8) is a half helical structure. The nozzle (5) corresponds to the position of the iron buckle (3), and a horizontal pipe (9) with sealed two ends is fixedly arranged on the iron buckle (3); a rolling ball (10) is arranged in the horizontal pipe (9), and a top spring (11) for pushing the rolling ball (10) is arranged at both ends of the horizontal pipe (9). A support (12) is arranged on the water ring (4), and two air bags (13) are fixedly arranged on both sides of the support (12); the two air bags (13) are respectively connected to the two ends of the horizontal pipe (9) through a hose (14). The nozzle (5) is rotatably arranged on the support (12), and two connecting plates (15) are arranged at the tail of the nozzle (5); the two connecting plates (15) are respectively connected to the two air bags (13) and are oppositely distributed, and the two air bags (13) can push the nozzle (5) to swing in and out of the muzzle along the connecting plates (15). An arc-shaped air-tight groove (16) is formed in the inner side of the annular groove (6), and an air-tight pin (17) is fixedly arranged on the annular frame (7) and located in the air-tight groove (16). One of the hoses (14) is connected to the air-tight groove (16) through a branch pipe (18), and the annular frame (7) and the helical blade (8) can be switched in position by injecting and sucking air.

2. A new type of fire rescue vehicle-mounted long-range spraying device according to claim 1, characterized in that: A detachable filter screen is arranged at the nozzle opening of the nozzle (5), and the mesh number of the filter screen is 80-120.

3. A new type of fire rescue vehicle-mounted long-range spraying device according to claim 2, characterized in that: A rubber pad is arranged on the inner side of the iron buckle (3), and the thickness of the rubber pad is 2-5 mm.

4. A new type of fire rescue vehicle-mounted long-range spraying device according to claim 3, characterized in that: A high-temperature-resistant and corrosion-resistant coating is coated on the surface of the helical blade (8), and the thickness of the coating is 0.1-0.3 mm.

5. A new type of fire rescue vehicle-mounted long-range spraying device according to claim 4, characterized in that: The horizontal pipe (9) is made of stainless steel.

6. A new type of fire rescue vehicle-mounted long-range spraying device according to claim 5, characterized in that: The outer surface of the air bag (13) is wrapped with a wear-resistant cloth sleeve made of nylon.

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