Unmanned aerial vehicle supersonic airflow anti-recoil fire extinguishing device

Abstract

The invention discloses an unmanned aerial vehicle supersonic airflow anti-recoil fire extinguishing device which comprises a fire extinguishing water spray pipe, an anti-recoil gas spray pipe, a high-low holder, a direction turntable, a camera, a direction control mechanism, a high-low control mechanism, a fire extinguishing water generation device, a gas generation device, a controller and an unmanned aerial vehicle. The high-low holder is installed on the direction rotary table and can rotate in the horizontal direction under the control of the direction control mechanism, the unmanned aerial vehicle is fixedly installed on the direction rotary table, the camera is fixedly installed on the high-low holder, and the fire extinguishing water spraying pipe is installed on the high-low holder and can rotate in the high-low direction under the control of the high-low control mechanism. The reverse recoil gas spraying pipe and the fire-extinguishing water spraying pipe are opposite in direction and are fixed together in an axis coincident mode, the fire-extinguishing water generating device comprises a fire-extinguishing water storage pond, a fire-extinguishing water pump and a grounding water pipe, the fire-extinguishing water storage pond is communicated with the fire-extinguishing water pump, and the fire-extinguishing water pump is communicated with the grounding water pipe; the gas generating device comprises a gas storage chamber, a gas compressor and a grounding gas pipe, the gas storage chamber is communicated with the gas compressor, and the gas compressor is communicated with the grounding gas pipe.

Description

Technical Field

[0001] The invention relates to a fire extinguishing device, in particular to a supersonic airflow recoil fire extinguishing device for an unmanned aerial vehicle, belonging to the technical field of fire fighting equipment. Background Art

[0002] Among various disasters, fire is one of the most frequent and common major disasters that threaten public safety and social development. When a fire occurs, a large number of fire-fighting equipment are needed to extinguish the fire. On the one hand, ordinary fire-fighting devices are mostly used on the ground, which is usually difficult for firefighting in high-rise buildings, especially for firefighting in super-high-rise buildings with more than 40 floors. When a fire occurs at high altitude, firefighters are often required to climb to a high place to extinguish the fire, which is difficult to operate and will delay the fire-fighting time. At the same time, it is difficult to extinguish the open fire near the outside of the building from inside the building. On the other hand, if the fire-fighting device is directly carried out by a drone, the high-speed fire-fighting water flow will produce a huge recoil impulse that makes the drone unable to work normally. Therefore, a fire-fighting device that can complete the fire-fighting operation from a high altitude and can overcome the recoil of the water flow to work stably is needed.

[0003] In view of this, the present invention is proposed to help solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to solve the above problems and provide a water flow fire extinguishing device. Through this technical solution, a drone can be used to carry this device to quickly reach the fire location of a high-rise building. When extinguishing a fire, a high-speed water flow is generated by the contraction nozzle to achieve efficient fire extinguishing. At the same time, supersonic gas is generated by the reverse configuration of the contraction and expansion nozzle, so that a larger impulse can be generated to balance the huge recoil impulse generated when the fire extinguishing water is sprayed out, so as to achieve stable operation of the drone at high altitude. In addition, the fire extinguishing position signal is transmitted to the controller through the camera, and the controller controls the direction turntable and the height pan / tilt to facilitate the adjustment of the jet angle and height of the fire extinguishing water nozzle, which can not only achieve high-altitude fire extinguishing, but also ensure the accuracy of the water spraying position.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions: a supersonic airflow recoil fire-fighting device for unmanned aerial vehicles, comprising a fire-fighting water nozzle, a recoil gas nozzle, a high-low turntable, a direction platform, a camera, a direction control mechanism, a high-low control mechanism, a fire-fighting water generating device, a gas generating device, a controller and a unmanned aerial vehicle. The high-low platform is mounted on the direction turntable and can be rotated in the horizontal direction by the direction control mechanism, the unmanned aerial vehicle is fixedly mounted on the direction turntable, the camera is fixedly mounted on the high-low platform, the fire-fighting water nozzle is mounted on the high-low platform and can be rotated in the high-low control mechanism, the recoil gas nozzle is in opposite directions to the fire-fighting water nozzle and the axes coincide and are fixed together, the fire-fighting water generating device comprises a fire-fighting water storage tank, a fire-fighting water pump and a grounding water pipe, the fire-fighting water storage tank is connected to the fire-fighting water pump, and the fire-fighting water pump is connected to the grounding water pipe; the gas generating device comprises a gas storage chamber, a gas compressor and a grounding gas pipe, the gas storage chamber is connected to the gas compressor, and the gas compressor is connected to the grounding gas pipe.

[0006] Furthermore, the front end of the fire-extinguishing water nozzle is contracted to generate a high-speed water flow and spray it forward to extinguish the fire; the anti-recoil air nozzle includes a contraction section and an expansion section, and is designed as a symmetrical two-branch structure to generate a supersonic airflow and spray it backward to generate an anti-recoil impulse.

[0007] Furthermore, a water inlet is provided at the bottom of the fire-extinguishing water nozzle, through which fire-extinguishing water can be conveniently injected into the fire-extinguishing water nozzle; an air inlet is provided at the bottom of the recoil gas nozzle, through which recoil gas can be conveniently injected into the recoil gas nozzle.

[0008] Furthermore, a retractable soft-connected water pipe is provided between the fire-extinguishing water nozzle and the high and low pan-tilt platform, and the two are connected; a retractable soft-connected air pipe is provided between the recoil air nozzle and the high and low pan-tilt platform, and the two are connected.

[0009] Furthermore, a soft-connection water pipe mounting hole and a soft-connection air pipe mounting hole are arranged on the high and low pan-tilt platform; one end of the soft-connection water pipe is inserted and fixed in the water inlet, and the other end is inserted and fixed in the soft-connection water pipe mounting hole; one end of the soft-connection air pipe is inserted and fixed in the air inlet, and the other end is inserted and fixed in the soft-connection air pipe mounting hole.

[0010] Furthermore, a rotating shaft is provided on the fire-extinguishing water nozzle, the axis of which is perpendicular to the axis of the fire-extinguishing water nozzle, and the recoil nozzle is provided with a tooth arc, the axis of which coincides with the axis of the rotating shaft.

[0011] Furthermore, the height platform is provided with a height rotation hole and a direction rotation axis, the axis of the height rotation hole is perpendicular to the axis of the direction rotation axis, the rotation axis is inserted in the height rotation hole and can rotate, and the direction rotation axis is inserted in the direction turntable and can rotate.

[0012] Furthermore, the direction control mechanism includes a direction gear, a direction pinion, a direction reducer and a direction motor, the direction gear is fixed on the direction rotating shaft, the direction reducer is connected to the direction motor and both are fixed on the direction turntable, the direction pinion is connected to the direction reducer, and the direction pinion is meshed with the direction gear.

[0013] Furthermore, the height control mechanism includes a height pinion, a height reducer and a height motor, the height reducer is connected to the height motor and both are fixed on the height turntable, the height pinion is connected to the height reducer, and the height pinion is meshed with the tooth arc.

[0014] Furthermore, the fire-fighting water storage tank is arranged on the ground for storing fire-fighting water, and is connected with the fire-fighting water pump for introducing fire-fighting water, and the grounded water pipe is used to connect the soft-connected water pipe and the fire-fighting water pump; the gas storage chamber is arranged on the ground for storing recoil gas, and is connected with the gas compressor for introducing gas and compressing it, and the grounded gas pipe is used to connect the soft-connected gas pipe and the gas compressor.

[0015] Furthermore, the controller is set on the ground and is used to control the water flow rate and gas flow rate of the fire-fighting water pump and the gas compressor. At the same time, it can receive the fire-fighting position signal transmitted by the camera, so as to control the rotation angle of the high and low pan / tilt head and the direction turntable.

[0016] Technical effects and advantages of the present invention: 1. By using drones to carry fire-fighting equipment, they can reach the fire point of high-rise buildings accurately and quickly.

[0017] 2. Through the design of the contraction nozzle, a high-speed water flow for fire extinguishing is generated, achieving efficient and rapid fire extinguishing.

[0018] 3. By configuring a reverse contraction-expansion nozzle to generate supersonic gas, an impulse of the same magnitude and opposite direction to the fire-fighting water flow ejected forward is generated, balancing the recoil impulse generated when the fire-fighting water is ejected forward at high speed, realizing recoil-free firefighting of drones, and solving the main problems currently existing in drone firefighting.

[0019] 4. The fire extinguishing position signal is transmitted to the controller through the camera, and the controller controls the direction turntable and the height pan / tilt to facilitate the adjustment of the jet angle and height of the fire extinguishing water nozzle, which can not only realize high-altitude fire extinguishing, but also ensure the accuracy of the water spraying position.

[0020] 5. The generation and compression of fire-fighting water and recoil gas are all configured on the ground, and the controller is also set on the ground, which reduces the load of the UAV and helps to reduce the energy consumption of the UAV. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a detailed structural schematic diagram of the present invention; Figure 3 It is a detailed structural cross-sectional schematic diagram of the present invention; Figure 4 It is a schematic diagram of the high and low pan / tilt structure of the present invention; In the figure: 1. Fire extinguishing water nozzle; 101. First main chamber; 102. First contraction section; 103. Water inlet; 104. Rotation axis; 2. Recoil air nozzle; 201. Second main chamber; 202. Second contraction section; 203. Second expansion section; 204. Air inlet; 205. Tooth arc; 3. High and low pan / tilt; 301. High and low rotation hole; 302. Direction rotation axis; 303. Flexible water pipe mounting hole; 304. Flexible air pipe mounting hole; 4. Direction turntable; 5. Camera; 6. Direction control mechanism; 601. Direction gear; 602. Direction pinion; 603. Direction reducer; 604. Direction motor; 7. High and low control mechanism; 701. High and low pinion; 702. High and low reducer; 703. High and low motor; 8. Flexible water pipe; 9. Flexible air pipe; 10. Grounded water pipe; 11. Grounded air pipe; 12. Water storage tank for fire extinguishing; 13. Air storage chamber; 14. Water pump for fire extinguishing; 15. Gas compressor; 16. Controller; 17. UAV. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figures 1 to 4As shown, the water-gas rear-spray telescopic frame gas fire extinguishing device comprises a fire-extinguishing water nozzle 1, a recoil gas nozzle 2, a high-low platform 3, a direction turntable 4, a camera 5, a direction control mechanism 6, a high-low control mechanism 7, a fire-extinguishing water generating device, a gas generating device, a controller 16 and a drone 17. The high-low platform 3 is mounted on the direction turntable 4 and can be rotated in the horizontal direction by the control of the direction control mechanism 6. The drone 17 is fixedly mounted on the direction turntable 4. The camera 5 is fixedly mounted on the high-low platform 3. The fire-extinguishing water nozzle 1 is mounted on the high-low platform 3 and can be rotated in the high-low direction by the control of the high-low control mechanism 7. The fire-extinguishing water nozzle 1 is provided with a rotating shaft 104, and the axis of the rotating shaft 104 is perpendicular to the axis of the fire-extinguishing water nozzle 1. The recoil gas nozzle 2 is provided with a tooth arc 205, and the axis of the tooth arc 205 coincides with the axis of the rotating shaft 104. The high-low platform 3 is provided with a high-low rotating hole 301 and a direction rotating shaft 302, and the axis of the high-low rotating hole 301 coincides with the axis of the direction rotating shaft 302. The axis of the rotating shaft 302 is vertical, the rotating shaft 104 is inserted in the high and low rotating hole 301 and can rotate, the direction rotating shaft 302 is inserted in the direction turntable 4 and can rotate, the recoil gas nozzle 2 is opposite to the fire extinguishing nozzle 1 and the axis coincides and is fixed together, the fire extinguishing water generating device includes a fire extinguishing water storage tank 12, a fire extinguishing water pump 14 and a grounding water pipe 10, the fire extinguishing water storage tank 12 is connected to the fire extinguishing water pump 14, and the fire extinguishing water pump 14 is connected to the grounding water pipe 10; the gas generating device includes a gas storage chamber 13, a gas compressor 15 and a grounding gas pipe 11, the gas storage chamber 13 is connected to the gas compressor 15, and the gas compressor 15 is connected to the grounding gas pipe 11.

[0024] In this embodiment, high-altitude fire extinguishing can be achieved through this technical solution, and during fire extinguishing, fire extinguishing water can be connected through the fire extinguishing water nozzle 1, and the recoil air nozzle 2 can be connected to compressed gas to generate supersonic airflow, and spray it backward to generate recoil impulse. The fire extinguishing operation can be completed by spraying water forward through the fire extinguishing water nozzle 1, and the recoil air nozzle 2 sprays supersonic airflow backward to ensure that the fire extinguishing device is stable when in use. The grounding water pipe 10 and the grounding air pipe 11 are respectively connected to the soft-connected water pipe 8 and the soft-connected air pipe 9 through the soft-connected water pipe mounting hole 303 and the soft-connected air pipe mounting hole 304 on the high and low pan / tilt platform 3. The fire-fighting water nozzle 1 is connected, the soft-connected water pipe 8 and the soft-connected air pipe 9 are connected with the water inlet 103 and the air inlet 204 respectively, and then the device is driven into the air by the aircraft 17. The fire-fighting water nozzle 1 is composed of a first main chamber 101 with a larger aperture and a first contraction section 102 with a gradually reduced aperture, which can generate a high-speed fire-fighting water flow to achieve efficient and rapid fire extinguishing. The recoil air nozzle 2 is provided with a second main chamber 201 with a smaller aperture, a second contraction section 202 with a gradually reduced aperture and a second expansion section 203 with a gradually increased aperture, and is designed as a symmetrical two-branch structure, which can generate a supersonic airflow and spray it backward to generate a recoil impulse. When extinguishing a fire, the controller 16 controls the fire-extinguishing water pump 14 and the gas compressor 15 to output fire-extinguishing water and anti-recoil gas. The fire-extinguishing water and anti-recoil gas can be sprayed out through the fire-extinguishing water nozzle 1 and the anti-recoil gas nozzle 2 respectively. The fire-extinguishing water nozzle 1 sprays water to the fire source to complete the fire extinguishing operation, and the anti-recoil gas nozzle 2 sprays supersonic airflow to offset the recoil force, thereby ensuring stability during use.

[0025] In this embodiment, Figure 2 and Figure 3 As shown, the direction control mechanism 6 includes a direction gear 601, a direction pinion 602, a direction reducer 603 and a direction motor 604. The direction gear 601 is fixed on the direction rotating shaft 302, the direction reducer 603 is connected to the direction motor 604 and both are fixed on the direction turntable 6, the direction pinion 602 is connected to the direction reducer 603, and the direction pinion 602 is meshed with the direction gear 601. Through this mechanism, the height turntable can be controlled to rotate in the horizontal direction; the height control mechanism 7 includes a height pinion 701, a height pinion 702 and a height motor 703, the height reducer 702 is connected to the height motor 703 and both are fixed on the height platform 3, the height pinion 701 is connected to the height reducer 702, and the height pinion 701 is meshed with the tooth arc 205. Through this mechanism, the height rotation of the fire-fighting water nozzle 1 can be controlled, and the water spraying angle can be conveniently adjusted. In addition, the controller 16 can control the rotation angles of the elevation platform 3 and the direction turntable 4 according to the image measured by the camera 5 .

[0026] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. UAV supersonic airflow recoil fire extinguishing device, characterized by: It comprises a fire-extinguishing water nozzle (1) for introducing water flow to spray forward to extinguish fire, and the front end of the fire-extinguishing water nozzle (1) is contracted for generating high-speed water flow; The anti-recoil gas nozzle (2) is installed and fixed together with the fire-fighting water nozzle (1) in the opposite direction and with the axis coinciding therewith, and is used to introduce gas and spray it out to generate anti-recoil impulse. The anti-recoil gas nozzle (2) includes a contraction section and an expansion section, and is designed as a symmetrical two-branch structure, and is used to generate a supersonic airflow and spray it backwards to generate anti-recoil impulse; A vertical pan / tilt platform (3) is used to support and control the vertical rotation of the fire-extinguishing water spray pipe (1); A direction turntable (4) is fixed together with the drone (17) to support and control the high and low gimbal (3) to rotate in a horizontal direction; A camera (5) is mounted on the high and low pan / tilt platform (3) and is used to detect the location information of the fire point in the building; A direction control mechanism (6) is installed on the elevation platform (3) and the direction turntable (4) and is used to control the elevation platform (3) to rotate in a horizontal direction; A height control mechanism (7) is mounted on the height platform (3) and is used to control the height rotation of the fire-extinguishing water spray pipe (1); A flexible connecting water pipe (8) is arranged between the fire-extinguishing water nozzle (1) and the high-low pan / tilt platform (3) and is connected to the fire-extinguishing water nozzle (1), and is retractable; A flexible connecting air pipe (9) is arranged between the anti-recoil air nozzle (2) and the elevation platform (3) and is connected to the anti-recoil air nozzle (2), and is retractable; A fire extinguishing water storage tank (12), arranged on the ground, for storing fire extinguishing water; A fire extinguishing water pump (14), arranged on the ground and connected to the fire extinguishing water storage tank (12), for introducing fire extinguishing water; A grounded water pipe (10) used for connecting the flexible water pipe (8) and the fire-extinguishing water pump (14); A gas storage chamber (13), arranged on the ground, for storing recoil gas; A gas compressor (15), arranged on the ground and connected to the gas storage chamber (13), for introducing and compressing the recoil gas; A grounding gas pipe (11), used for connecting the flexible connecting gas pipe (9) and the gas compressor (15); The controller (16) is arranged on the ground and is used to control the water flow rate and gas flow rate of the fire extinguishing water pump (14) and the gas compressor (15), and can also receive the fire extinguishing position signal transmitted by the camera (5), so as to control the rotation angle of the high and low pan / tilt platform (3) and the direction turntable (4).

2. The unmanned aerial vehicle supersonic airflow recoil fire extinguishing device according to claim 1 is characterized by: The fire-extinguishing water nozzle (1) is composed of a first main chamber (101) with a relatively large aperture and a first contraction section (102) with a gradually decreasing aperture, and the recoil gas nozzle (2) is provided with a second main chamber (201) with a relatively small aperture, a second contraction section (202) with a gradually decreasing aperture, and a second expansion section (203) with a gradually increasing aperture, and is designed as a symmetrical two-branch structure.

3. The unmanned aerial vehicle supersonic airflow recoil fire extinguishing device according to claims 1 and 2 is characterized in that: The first main chamber (101) is provided with a water inlet (103), the second main chamber (201) is provided with an air inlet (204), the high and low pan head (3) is provided with a flexible water pipe mounting hole (303) and a flexible air pipe mounting hole (304), one end of the flexible water pipe (8) is inserted and fixed in the water inlet (103), and the other end is inserted and fixed in the flexible water pipe mounting hole (303), and one end of the flexible air pipe (9) is inserted and fixed in the air inlet (204), and the other end is inserted and fixed in the flexible air pipe mounting hole (304).

4. The unmanned aerial vehicle supersonic airflow recoil fire extinguishing device according to claim 1, characterized in that: The fire-extinguishing water nozzle (1) is provided with a rotating shaft (104), the axis of which is perpendicular to the axis of the fire-extinguishing water nozzle (1); the recoil gas nozzle (2) is provided with a tooth arc (205), the axis of which coincides with the axis of the rotating shaft (104); the elevation platform (3) is provided with an elevation rotation hole (301) and a direction rotation shaft (302), the axis of which is perpendicular to the axis of the direction rotation shaft (302); the rotating shaft (104) is inserted into the elevation rotation hole (301) and is rotatable; and the direction rotation shaft (302) is inserted into the direction rotating platform (4) and is rotatable.

5. The unmanned aerial vehicle supersonic airflow recoil fire extinguishing device according to claims 1 and 4 is characterized in that: The direction control mechanism (6) comprises a direction gear (601), a direction pinion (602), a direction reducer (603) and a direction motor (604); the direction gear (601) is fixedly mounted on the direction rotating shaft (302); the direction reducer (603) is connected to the direction motor (604) and both are fixed on the direction turntable (4); the direction pinion (602) is connected to the direction reducer (603); and the direction pinion (602) is meshed with the direction gear (601).

6. The unmanned aerial vehicle supersonic airflow recoil fire extinguishing device according to claim 5 is characterized by: The height control mechanism (7) comprises a height pinion (701), a height reducer (702) and a height motor (703); the height reducer (702) is connected to the height motor (703) and both are fixed on the height platform (3); the height pinion (701) is connected to the height reducer (702); and the height pinion (701) meshes with the tooth arc (205).

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