Fire extinguishing unmanned aerial vehicle for fire fighting and use method of fire extinguishing unmanned aerial vehicle

Abstract

The invention relates to the technical field of fire-fighting instruments, and discloses a fire-fighting fire-extinguishing unmanned aerial vehicle and a using method thereof.The fire-fighting fire-extinguishing unmanned aerial vehicle comprises a fire-extinguishing unmanned aerial vehicle body, a working frame is fixedly connected to the bottom of the fire-extinguishing unmanned aerial vehicle body, a water tank is fixedly connected to the bottom of the inner wall of the working frame, and one side of the bottom of the water tank communicates with a water inlet pipe; the fire extinguishing unmanned aerial vehicle drives the working frame to ascend, the working frame drives the water tank to ascend, when the fire extinguishing unmanned aerial vehicle ascends to a fire extinguishing area, the fire extinguishing unmanned aerial vehicle is in a suspended state, and at the moment, water flow enters a water inlet pipe through stamping of a water pump and enters the water tank through the water inlet pipe; the water flow extrudes the lifting plate in the water tank, so that the lifting plate slides upwards in the water tank, when the lifting plate moves to the top of the inner wall of the water tank, the lifting plate does not block the water flow any more, at the moment, the water flow enters the drainage pipe through the water tank, the water flow is sprayed to a fire area through the drainage pipe, and therefore fire extinguishing work is conducted.

Description

Technical Field

[0001] The present invention relates to the technical field of fire-fighting equipment, and particularly to a fire-fighting unmanned aerial vehicle and its usage method. Background Art

[0002] The fire-fighting unmanned aerial vehicle is an intelligent device integrating fire monitoring, fire extinguishing and reconnaissance. It combines the flight ability of the unmanned aerial vehicle and fire-fighting technology to quickly respond and provide effective fire-fighting support when a fire occurs. It can provide faster, more effective and safer fire-fighting support at the fire scene, especially playing an important role in some environments where traditional fire-fighting methods are difficult to reach. With the development of unmanned aerial vehicle technology, the application prospect of fire-fighting unmanned aerial vehicles is becoming broader and broader.

[0003] Existing fire-fighting unmanned aerial vehicles usually adopt the method of pumping water into the water tank carried by the unmanned aerial vehicle, and then making the water flow towards the fire area through a spraying device for fire-fighting work. However, in this process, the unmanned aerial vehicle needs to be in a suspended state. During the flow of water, the center of gravity of the unmanned aerial vehicle may shift, thus affecting the fire-fighting effect of the fire-fighting unmanned aerial vehicle. Summary of the Invention

[0004] The purpose of the present invention is to provide a fire-fighting unmanned aerial vehicle and its usage method to solve the problems raised in the above background art.

[0005] To solve the above technical problems, the present invention is realized through the following technical solutions:

[0006] The present invention is a fire-fighting unmanned aerial vehicle and its usage method, including a fire-fighting unmanned aerial vehicle. A working frame is fixedly connected to the bottom of the fire-fighting unmanned aerial vehicle. The inner wall bottom of the working frame is fixedly connected with a water tank. One side of the bottom of the water tank is communicated with a water inlet pipe. One side of the outer wall of the water tank is communicated with a drain pipe. It also includes an extension and stabilization mechanism. The extension and stabilization mechanism includes a spring, a lifting plate, a rotating rod, a slider, and an extension component for stabilizing the fire-fighting unmanned aerial vehicle. The top of the spring is fixedly connected to the inner wall top of the water tank. There are four springs. The top of the lifting plate is fixedly connected to the bottom of the spring. The outer wall of the lifting plate is slidably connected to the inner wall of the water tank. The bottom end of the rotating rod is rotatably connected to the top of the lifting plate. There are four rotating rods. The bottom end of the slider is rotatably connected to the top of the rotating rod.

[0007] Furthermore, the extension component includes a cross bar fixedly connected to one side of the slider. Four square grooves are respectively formed around the inner wall top of the water tank. The top end of the slider is slidably connected to the inner wall of the square groove. One end of the cross bar penetrates through the water tank and extends to the outside of the water tank.

[0008] Further, one end of the crossbar away from the slider is rotatably connected to a first rotating plate, one end of the first rotating plate away from the crossbar is rotatably connected to a second rotating plate, the inner wall of the second rotating plate is rotatably connected to a fixed rod, and both ends of the fixed rod are fixedly connected to the inner wall of the working frame.

[0009] Further, an auxiliary component is arranged on the inner wall of the working frame. The auxiliary component includes vertical rods fixedly connected to both sides of the bottom of the inner wall of the working frame, and a square plate is slidably connected to the outer wall of one end of the vertical rod.

[0010] Further, a reset spring is fixedly connected to the bottom of the square plate, the bottom of the reset spring is fixedly connected to the bottom of the inner wall of the working frame, the top of the square plate is in contact with the hinge joint of the first rotating plate and the second rotating plate, and a connecting strip is fixedly connected between the two square plates.

[0011] Further, a stabilizing component is arranged at the bottom of the connecting strip. The stabilizing component includes a round rod fixedly connected to the bottom of the connecting strip, and one end of the round rod penetrates through the working frame and extends to the outside of the working frame.

[0012] Further, an annular plate is fixedly connected to the bottom of the round rod, four arc-shaped plates are respectively fixedly connected to the four circumferences of the bottom of the annular plate, the outer wall of the arc-shaped plate is slidably connected to a fixing plate, and the inner wall of the fixing plate is fixedly connected to the outer wall of the water inlet pipe.

[0013] Further, an adjusting component is arranged at one end of the crossbar. The adjusting component includes an elastic strip rotatably connected to one end of the crossbar close to the first rotating plate, a round plate is rotatably connected to the end of the elastic strip away from the crossbar, a limiting rod is slidably connected to the inner wall of the round plate, and the top of the limiting rod is fixedly connected to the top of the inner wall of the working frame.

[0014] Further, the bottom of the limiting rod is fixedly connected to the top of the water tank, four connecting rods are respectively fixedly connected to the four circumferences of the bottom of the round plate, one end of the connecting rod penetrates through the water tank and extends to the outside of the working frame, and a disc is fixedly connected to the bottom of the connecting rod, and a gravity ball is fixedly connected to the bottom of the disc.

[0015] A using method of a fire-fighting unmanned aerial vehicle includes the following steps:

[0016] Step 1: Extinguish the fire. Start the fire-fighting unmanned aerial vehicle. The fire-fighting unmanned aerial vehicle drives the working frame to rise, the working frame drives the water tank to rise. When the fire-fighting unmanned aerial vehicle rises to the fire-fighting area, the fire-fighting unmanned aerial vehicle is in a suspended state. At this time, water flows into the inside of the water inlet pipe through the pressing of the water pump, the water flows into the inside of the water tank through the water inlet pipe, the water squeezes the lifting plate inside the water tank, so that the lifting plate slides upward inside the water tank. When the lifting plate moves to the top of the inner wall of the water tank, the lifting plate no longer blocks the water flow. At this time, the water flows into the inside of the drain pipe through the water tank, and the water is sprayed toward the fire area through the drain pipe;

[0017] Step 2: Prevent the water inlet pipe from shaking. Due to the settings of the annular plate and the fixed plate, the water inlet pipe can be limited, preventing the water inlet pipe from shaking when the water flow inside the water inlet pipe generates too much impact force during the water flow. This indirectly improves the suspension stability of the fire extinguishing drone. When the first rotating plate and the second rotating plate rotate, they no longer squeeze the square plate. Due to the elastic deformation of the reset spring, the reset spring drives the square plate to move vertically upward along the outer wall of the vertical rod. The square plate drives the connecting bar to move upward, the connecting bar drives the round rod to move upward, the round rod drives the annular plate to move upward, and the annular plate drives the arc-shaped plate to move upward. Through the settings of the annular plate, the arc-shaped plate, and the fixed plate, the wrapping range of the water inlet pipe is expanded;

[0018] Step 3: Improve the stability of water flow for fire extinguishing. When the cross bar moves, the cross bar drives the elastic strip to move. Due to the setting of the limiting rod, the elastic strip drives the round plate to move vertically downward along the outer wall of the limiting rod. The round plate drives the connecting rod to move vertically downward, the connecting rod drives the disc to move vertically downward, and the disc drives the center of gravity ball to move vertically downward. During the downward movement of the center of gravity ball, the overall center of gravity of the device can move towards the center of gravity ball, indirectly making the center of gravity approach the center of the device.

[0019] The present invention has the following beneficial effects:

[0020] (1) In the present invention, when the fire extinguishing drone is started, the fire extinguishing drone drives the working frame to rise, and the working frame drives the water tank to rise. When the fire extinguishing drone rises to the fire extinguishing area, the fire extinguishing drone is in a suspended state. At this time, the water flow enters the inside of the water inlet pipe through the pressure of the water pump. The water flow enters the inside of the water tank through the water inlet pipe. The water flow squeezes the lifting plate inside the water tank, causing the lifting plate to slide upward inside the water tank. When the lifting plate moves to the top of the inner wall of the water tank, the lifting plate no longer blocks the water flow. At this time, the water flow enters the inside of the drain pipe through the water tank, and the water flow is sprayed towards the fire area through the drain pipe to carry out the fire extinguishing work. When the lifting plate rises, the lifting plate drives the rotating rod to move upward. Due to the limitation of the square groove, the rotating rod drives the slider to slide along the inner wall of the square groove, and the slider drives the cross bar to move. The cross bar drives the first rotating plate to move, and the first rotating plate drives the second rotating plate to move. Due to the limitation of the fixed rod, the second rotating plate rotates around the outer wall of the fixed rod during the movement, extending the planes of the first rotating plate and the second rotating plate, expanding the contact area between the first rotating plate, the second rotating plate and the air, thereby generating more lift, reducing the burden on the fire extinguishing drone, making it easier for the fire extinguishing drone to maintain a suspended state, and improving the stability of water flow for fire extinguishing.

[0021] (2) In the present invention, due to the arrangement of the annular plate and the fixed plate, the water inlet pipe can be limited in position, preventing the water inlet pipe from shaking when the water flows inside it due to excessive impact force, thereby improving the suspension stability of the fire-fighting drone. When the first rotating plate and the second rotating plate rotate, they no longer squeeze the square plate. Due to the elastic deformation of the reset spring, the reset spring drives the square plate to move vertically upward along the outer wall of the vertical rod. The square plate drives the connecting strip to move upward, the connecting strip drives the round rod to move upward, the round rod drives the annular plate to move upward, and the annular plate drives the arc-shaped plate to move upward. Through the arrangement of the annular plate, the arc-shaped plate, and the fixed plate, the wrapping range of the water inlet pipe is expanded, further preventing the contact end of the water inlet pipe with the working frame from shaking, and improving the suspension stability of the fire-fighting drone. Due to the elastic deformation of the reset spring, when the reset spring drives the square plate to rise, the square plate can continuously resist the bottoms of the second rotating plate and the first rotating plate, thereby improving the extended operation stability of the second rotating plate and the first rotating plate.

[0022] (3) In the present invention, when the cross bar moves, the cross bar drives the elastic strip to move. Due to the arrangement of the limiting rod, the elastic strip drives the round plate to move vertically downward along the outer wall of the limiting rod. The round plate drives the connecting rod to move vertically downward, the connecting rod drives the disc to move vertically downward, and the disc drives the center of gravity ball to move vertically downward. During the downward movement of the center of gravity ball, the overall center of gravity of the device can move towards the center of gravity ball, indirectly making the center of gravity approach the center of the device, improving the suspension stability of the fire-fighting drone, preventing the fire-fighting drone from shaking during suspension, and improving the stability of water flow for fire extinguishing.

[0023] Of course, it is not necessary for any product implementing the present invention to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0025] Figure 1 It is a schematic top view structure diagram of the whole of the present invention;

[0026] Figure 2 It is a schematic cross-sectional structure diagram of the whole of the present invention;

[0027] Figure 3 It is a schematic cross-sectional structure diagram of the working frame of the present invention;

[0028] Figure 4 It is a schematic cross-sectional structure diagram of the water tank of the present invention;

[0029] Figure 5 Schematic cross-sectional structure diagram of the connecting rod of the present invention;

[0030] Figure 6 Schematic explosion structure diagram of the annular plate of the present invention;

[0031] Figure 7 For the present invention Figure 4 Enlarged view of A in;

[0032] Figure 8 For the present invention Figure 4 Enlarged view of B in;

[0033] Figure 9 For the present invention Figure 5 Enlarged view of C in;

[0034] Figure 10 Schematic flow chart of the usage method of the present invention.

[0035] In the drawings, the list of components represented by each reference numeral is as follows:

[0036] In the figure: 1, fire-fighting unmanned aerial vehicle; 2, working frame; 3, water tank; 4, water inlet pipe; 5, drain pipe; 6, extension and stabilization mechanism; 61, spring; 62, lifting plate; 63, rotating rod; 64, slider; 65, extension component; 66, auxiliary component; 67, stabilization component; 68, adjustment component; 651, cross bar; 652, square groove; 653, first rotating plate; 654, second rotating plate; 655, fixed rod; 661, vertical rod; 662, square plate; 663, reset spring; 664, connecting strip; 671, round rod; 672, annular plate; 673, arc plate; 674, fixed plate; 681, elastic strip; 682, round plate; 683, limiting rod; 684, connecting rod; 685, disc; 686, center of gravity ball. Specific embodiments

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0038] Example 1, please refer to Figure 1 - Figure 10As shown in the figure, the present invention is a fire-fighting unmanned aerial vehicle and its usage method, including a fire-fighting unmanned aerial vehicle 1. A working frame 2 is fixedly connected to the bottom of the fire-fighting unmanned aerial vehicle 1. The inner wall bottom of the working frame 2 is fixedly connected with a water tank 3. One side of the bottom of the water tank 3 is communicated with a water inlet pipe 4. One side of the outer wall of the water tank 3 is communicated with a drain pipe 5. It also includes;

[0039] An extension and stabilization mechanism 6. The extension and stabilization mechanism 6 includes a spring 61, a lifting plate 62, a rotating rod 63, a slider 64. When starting the fire-fighting unmanned aerial vehicle 1, the fire-fighting unmanned aerial vehicle 1 drives the working frame 2 to rise, and the working frame 2 drives the water tank 3 to rise. When the fire-fighting unmanned aerial vehicle 1 rises to the fire area, the fire-fighting unmanned aerial vehicle 1 is in a suspended state. At this time, water flows into the interior of the water inlet pipe 4 through the pressure of the water pump. The water flows into the interior of the water tank 3 through the water inlet pipe 4. The water squeezes the lifting plate 62 inside the water tank 3, causing the lifting plate 62 to slide upward inside the water tank 3. When the lifting plate 62 moves to the top of the inner wall of the water tank 3, the lifting plate 62 no longer blocks the water flow. At this time, the water flows into the interior of the drain pipe 5 through the water tank 3, and the water is sprayed towards the fire area through the drain pipe 5, thereby carrying out the fire-fighting work. A component 65 for stably extending the fire-fighting unmanned aerial vehicle 1. When the lifting plate 62 rises, the lifting plate 62 drives the rotating rod 63 to move upward. Limited by the square groove 652, the rotating rod 63 drives the slider 64 to slide along the inner wall of the square groove 652. The slider 64 drives the cross bar 651 to move. The cross bar 651 drives the first rotating plate 653 to move. The first rotating plate 653 drives the second rotating plate 654 to move. Limited by the fixed rod 655, the second rotating plate 654 rotates around the outer wall of the fixed rod 655 during the movement, causing the planes of the first rotating plate 653 and the second rotating plate 654 to extend, expanding the contact area between the first rotating plate 653, the second rotating plate 654 and the air, thereby generating more lift, reducing the burden on the fire-fighting unmanned aerial vehicle 1, making it easier for the fire-fighting unmanned aerial vehicle 1 to maintain a suspended state, and improving the stability of water flow fire-fighting;

[0040] The top of the spring 61 is fixedly connected to the top of the inner wall of the water tank 3. There are four springs 61. The top of the lifting plate 62 is fixedly connected to the bottom of the spring 61. The outer wall of the lifting plate 62 is slidably connected to the inner wall of the water tank 3. The bottom end of the rotating rod 63 is rotatably connected to the top of the lifting plate 62. There are four rotating rods 63. The bottom end of the slider 64 is rotatably connected to the top end of the rotating rod 63.

[0041] The extension component 65 includes a cross bar 651 fixedly connected to one side of the slider 64. Four square grooves 652 are respectively opened around the top of the inner wall of the water tank 3. The top end of the slider 64 is slidably connected to the inner wall of the square groove 652. One end of the cross bar 651 penetrates through the water tank 3 and extends to the outside of the water tank 3.

[0042] One end of the cross bar 651 away from the slider 64 is rotatably connected to a first rotating plate 653. One end of the first rotating plate 653 away from the cross bar 651 is rotatably connected to a second rotating plate 654. The inner wall of the second rotating plate 654 is rotatably connected to a fixed rod 655. Both ends of the fixed rod 655 are fixedly connected to the inner wall of the working frame 2.

[0043] Example 2, an auxiliary component 66 is arranged on the inner wall of the working frame 2. When the reset spring 663 drives the square plate 662 to rise due to its elastic deformation, the square plate 662 can continuously resist the bottoms of the second rotating plate 654 and the first rotating plate 653, thereby improving the extension operation stability of the second rotating plate 654 and the first rotating plate 653. The auxiliary component 66 includes vertical rods 661 fixedly connected to both sides of the bottom of the inner wall of the working frame 2. One end of the vertical rod 661 is slidably connected to the square plate 662.

[0044] A reset spring 663 is fixedly connected to the bottom of the square plate 662. The bottom of the reset spring 663 is fixedly connected to the bottom of the inner wall of the working frame 2. The top of the square plate 662 is in contact with the hinge joint of the first rotating plate 653 and the second rotating plate 654. A connecting bar 664 is fixedly connected between the two square plates 662.

[0045] A stabilizing component 67 is arranged at the bottom of the connecting bar 664. When the first rotating plate 653 and the second rotating plate 654 rotate, they no longer squeeze the square plate 662. Due to the elastic deformation of the reset spring 663, the reset spring 663 drives the square plate 662 to vertically move upward along the outer wall of the vertical rod 661. The square plate 662 drives the connecting bar 664 to move upward. The connecting bar 664 drives the round rod 671 to move upward. The round rod 671 drives the annular plate 672 to move upward. The annular plate 672 drives the arc plate 673 to move upward. Through the settings of the annular plate 672, the arc plate 673, and the fixing plate 674, the wrapping range of the water inlet pipe 4 is enlarged, further preventing the contact end of the water inlet pipe 4 and the working frame 2 from shaking, and improving the suspension stability of the fire extinguishing UAV 1. The stabilizing component 67 includes a round rod 671 fixedly connected to the bottom of the connecting bar 664. One end of the round rod 671 penetrates through the working frame 2 and extends to the outside of the working frame 2.

[0046] The bottom of the round rod 671 is fixedly connected to an annular plate 672. Four arc plates 673 are respectively fixedly connected to the four circumferences of the bottom of the annular plate 672. The outer wall of the arc plate 673 is slidably connected to a fixing plate 674. Due to the settings of the annular plate 672 and the fixing plate 674, the water inlet pipe 4 can be limited, preventing the water inlet pipe 4 from shaking due to excessive impact force when the water flows inside the water inlet pipe 4, and improving the suspension stability of the fire extinguishing UAV 1 from the side. The inner wall of the fixing plate 674 is fixedly connected to the outer wall of the water inlet pipe 4.

[0047] One end of the cross bar 651 is provided with an adjusting assembly 68. The adjusting assembly 68 includes an elastic strip 681 rotatably connected to one end of the cross bar 651 close to the first rotating plate 653. One end of the elastic strip 681 away from the cross bar 651 is rotatably connected to a circular plate 682. A limiting rod 683 is slidably connected to the inner wall of the circular plate 682. The top of the limiting rod 683 is fixedly connected to the top of the inner wall of the working frame 2.

[0048] The bottom of the limiting rod 683 is fixedly connected to the top of the water tank 3. Four connecting rods 684 are respectively fixedly connected to the four circumferences of the bottom of the circular plate 682. One end of the connecting rod 684 penetrates through the water tank 3 and extends to the outside of the working frame 2. The bottom of the connecting rod 684 is fixedly connected to a disc 685. The bottom of the disc 685 is fixedly connected to a gravity ball 686. When the cross bar 651 moves, the cross bar 651 drives the elastic strip 681 to move. Due to the setting of the limiting rod 683, the elastic strip 681 drives the circular plate 682 to vertically descend along the outer wall of the limiting rod 683. The circular plate 682 drives the connecting rod 684 to vertically descend. The connecting rod 684 drives the disc 685 to vertically descend. The disc 685 drives the gravity ball 686 to vertically descend. During the descent of the gravity ball 686, the overall center of gravity of the device can move towards the gravity ball 686, indirectly making the center of gravity approach the center of the device, improving the suspension stability of the fire extinguishing UAV 1, preventing the fire extinguishing UAV 1 from shaking during suspension, and improving the stability of water flow fire extinguishing on the side.

[0049] A method for using a fire extinguishing UAV for fire fighting includes the following steps:

[0050] Step 1: Extinguish the fire. Start the fire extinguishing UAV 1. The fire extinguishing UAV 1 drives the working frame 2 to rise. The working frame 2 drives the water tank 3 to rise. When the fire extinguishing UAV 1 rises to the fire extinguishing area, the fire extinguishing UAV 1 is in a suspended state. At this time, water flow enters the inside of the water inlet pipe 4 through the punching of the water pump. The water flow enters the inside of the water tank 3 through the water inlet pipe 4. The water flow squeezes the lifting plate 62 inside the water tank 3, causing the lifting plate 62 to slide upward inside the water tank 3. When the lifting plate 62 moves to the top of the inner wall of the water tank 3, the lifting plate 62 no longer blocks the water flow. At this time, the water flow enters the inside of the drain pipe 5 through the water tank 3, and the water flow is sprayed towards the fire area through the drain pipe 5.

[0051] Step 2: Prevent the water inlet pipe 4 from shaking. Due to the settings of the annular plate 672 and the fixed plate 674, the water inlet pipe 4 can be limited, preventing the water inlet pipe 4 from shaking due to excessive impact force when the water flows inside the water inlet pipe 4, thereby indirectly improving the suspension stability of the fire extinguishing drone 1. When the first rotating plate 653 and the second rotating plate 654 rotate, they no longer squeeze the square plate 662. Due to the elastic deformation of the return spring 663, the return spring 663 drives the square plate 662 to move vertically upward along the outer wall of the vertical rod 661. The square plate 662 drives the connecting bar 664 to move upward. The connecting bar 664 drives the round rod 671 to move upward. The round rod 671 drives the annular plate 672 to move upward. The annular plate 672 drives the arc-shaped plate 673 to move upward. Through the settings of the annular plate 672, the arc-shaped plate 673, and the fixed plate 674, the wrapping range of the water inlet pipe 4 is expanded;

[0052] Step 3: Improve the stability of water flow for fire extinguishing. When the cross bar 651 moves, the cross bar 651 drives the elastic strip 681 to move. Due to the setting of the limiting rod 683, the elastic strip 681 drives the round plate 682 to move vertically downward along the outer wall of the limiting rod 683. The round plate 682 drives the connecting rod 684 to move vertically downward. The connecting rod 684 drives the disc 685 to move vertically downward. The disc 685 drives the center of gravity ball 686 to move vertically downward. During the downward movement of the center of gravity ball 686, the overall center of gravity of the device can move towards the center of gravity ball 686, indirectly making the center of gravity approach the center of the device.

[0053] During use, start the fire extinguishing drone 1. The fire extinguishing drone 1 drives the working frame 2 to rise, and the working frame 2 drives the water tank 3 to rise. When the fire extinguishing drone 1 rises to the fire area, the fire extinguishing drone 1 enters a suspended state. At this time, water flows into the interior of the water inlet pipe 4 through the pressure of the water pump. The water flows into the interior of the water tank 3 through the water inlet pipe 4. The water squeezes the lifting plate 62 inside the water tank 3, causing the lifting plate 62 to slide upward inside the water tank 3. When the lifting plate 62 moves to the top of the inner wall of the water tank 3, the lifting plate 62 no longer blocks the water flow. At this time, the water flows into the interior of the drain pipe 5 through the water tank 3, and the water is sprayed towards the fire area through the drain pipe 5 to carry out the fire extinguishing work. When the lifting plate 62 rises, the lifting plate 62 drives the rotating rod 63 to move upward. Limited by the square groove 652, the rotating rod 63 drives the slider 64 to slide along the inner wall of the square groove 652. The slider 64 drives the cross bar 651 to move, the cross bar 651 drives the first rotating plate 653 to move, and the first rotating plate 653 drives the second rotating plate 654 to move. Limited by the fixed rod 655, the second rotating plate 654 rotates around the outer wall of the fixed rod 655 during the movement, causing the planes of the first rotating plate 653 and the second rotating plate 654 to extend, increasing the contact area between the first rotating plate 653, the second rotating plate 654 and the air, thereby generating more lift, reducing the burden on the fire extinguishing drone 1, making it easier for the fire extinguishing drone 1 to maintain a suspended state, and improving the stability of water flow fire extinguishing.

[0054] Due to the settings of the annular plate 672 and the fixing plate 674, the water inlet pipe 4 can be limited, preventing the water inlet pipe 4 from shaking due to excessive impact force when the water flows inside the water inlet pipe 4, which laterally improves the suspended stability of the fire extinguishing drone 1. When the first rotating plate 653 and the second rotating plate 654 rotate, they no longer squeeze the square plate 662. Due to the elastic deformation of the return spring 663, the return spring 663 drives the square plate 662 to vertically move upward along the outer wall of the vertical rod 661. The square plate 662 drives the connecting strip 664 to move upward, the connecting strip 664 drives the round rod 671 to move upward, the round rod 671 drives the annular plate 672 to move upward, and the annular plate 672 drives the arc plate 673 to move upward. Through the settings of the annular plate 672, the arc plate 673, and the fixing plate 674, the wrapping range of the water inlet pipe 4 is expanded, further preventing the contact end of the water inlet pipe 4 and the working frame 2 from shaking, and improving the suspended stability of the fire extinguishing drone 1. Due to the elastic deformation of the return spring 663, when the return spring 663 drives the square plate 662 to rise, the square plate 662 can continuously resist the bottoms of the second rotating plate 654 and the first rotating plate 653, thereby improving the extended operation stability of the second rotating plate 654 and the first rotating plate 653.

[0055] When the cross bar 651 moves, the cross bar 651 drives the elastic strip 681 to move. Due to the arrangement of the limiting rod 683, the elastic strip 681 drives the circular plate 682 to vertically descend along the outer wall of the limiting rod 683. The circular plate 682 drives the connecting rod 684 to vertically descend. The connecting rod 684 drives the disc 685 to vertically descend. The disc 685 drives the center of gravity ball 686 to vertically descend. During the descent of the center of gravity ball 686, the center of gravity of the whole device can move towards the center of gravity ball 686, indirectly making the center of gravity approach the center of the device, improving the suspension stability of the fire extinguishing UAV 1, preventing the fire extinguishing UAV 1 from shaking during suspension, and improving the stability of water flow fire extinguishing from the side.

[0056] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. This specification selects and specifically describes these embodiments to better explain the principle and practical application of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A fire-fighting drone, characterized in that: It comprises a fire-fighting drone (1), wherein the bottom of the fire-fighting drone (1) is fixedly connected to a working frame (2), the bottom of the inner wall of the working frame (2) is fixedly connected to a water tank (3), one side of the bottom of the water tank (3) is connected to a water inlet pipe (4), and one side of the outer wall of the water tank (3) is connected to a drainage pipe (5), and further comprises: An extension stabilization mechanism (6), the extension stabilization mechanism (6) comprising a spring (61), a lifting plate (62), a rotating rod (63), a slider (64), and an extension component (65) for stabilizing the fire-fighting drone (1); The top of the spring (61) is fixedly connected to the top of the inner wall of the water tank (3), and four springs (61) are provided. The top of the lifting plate (62) is fixedly connected to the bottom of the spring (61), and the outer wall of the lifting plate (62) is slidably connected to the inner wall of the water tank (3). The bottom end of the rotating rod (63) is rotatably connected to the top of the lifting plate (62), and four rotating rods (63) are provided. The bottom end of the sliding block (64) is rotatably connected to the top of the rotating rod (63).

2. A fire-fighting drone according to claim 1, characterized in that: The extension assembly (65) comprises a cross bar (651) fixedly connected to one side of the slider (64); four square grooves (652) are respectively provided around the top of the inner wall of the water tank (3); the top end of the slider (64) is slidably connected to the inner wall of the square groove (652); and one end of the cross bar (651) penetrates the water tank (3) and extends to the outside of the water tank (3).

3. A fire-fighting drone according to claim 2, characterized in that: One end of the cross bar (651) away from the slider (64) is rotatably connected to a first rotating plate (653), one end of the first rotating plate (653) away from the cross bar (651) is rotatably connected to a second rotating plate (654), the inner wall of the second rotating plate (654) is rotatably connected to a fixing rod (655), and both ends of the fixing rod (655) are fixedly connected to the inner wall of the working frame (2).

4. A fire-fighting drone according to claim 3, characterized in that: The inner wall of the working frame (2) is provided with an auxiliary component (66), the auxiliary component (66) comprising vertical rods (661) fixedly connected to both sides of the bottom of the inner wall of the working frame (2), and a square plate (662) is slidably connected to the outer wall of one end of the vertical rod (661).

5. A fire-fighting drone according to claim 4, characterized in that: A return spring (663) is fixedly connected to the bottom of the square plate (662), and the bottom of the return spring (663) is fixedly connected to the bottom of the inner wall of the working frame (2). The top of the square plate (662) is arranged in contact with the hinge between the first rotating plate (653) and the second rotating plate (654), and a connecting strip (664) is fixedly connected between the two square plates (662).

6. A fire-fighting drone according to claim 5, characterized in that: A stabilizing component (67) is provided at the bottom of the connecting bar (664), and the stabilizing component (67) comprises a round rod (671) fixedly connected to the bottom of the connecting bar (664), and one end of the round rod (671) penetrates the working frame (2) and extends to the outside of the working frame (2).

7. A fire-fighting drone according to claim 6, characterized in that: The bottom of the round rod (671) is fixedly connected to an annular plate (672), the bottom of the annular plate (672) is respectively fixedly connected to four arc-shaped plates (673) on all sides thereof, the outer wall of the arc-shaped plate (673) is slidably connected to a fixed plate (674), and the inner wall of the fixed plate (674) is fixedly connected to the outer wall of the water inlet pipe (4).

8. A fire-fighting drone according to claim 7, characterized in that: An adjustment assembly (68) is provided at one end of the cross bar (651), and the adjustment assembly (68) comprises an elastic strip (681) rotatably connected to one end of the cross bar (651) close to the first rotating plate (653), and one end of the elastic strip (681) away from the cross bar (651) is rotatably connected to a circular plate (682), the inner wall of the circular plate (682) is slidably connected to a limit rod (683), and the top of the limit rod (683) is fixedly connected to the top of the inner wall of the working frame (2).

9. A fire-fighting drone according to claim 8, characterized in that: The bottom of the limiting rod (683) is fixedly connected to the top of the water tank (3); four connecting rods (684) are fixedly connected to the four sides of the bottom of the circular plate (682); one end of the connecting rod (684) passes through the water tank (3) and extends to the outside of the working frame (2); the bottom of the connecting rod (684) is fixedly connected to a circular disc (685); and the bottom of the circular disc (685) is fixedly connected to a center of gravity ball (686).

10. A method for using a fire-fighting drone for firefighting, using the fire-fighting drone for firefighting as claimed in claim 9, characterized in that: The following steps are included: Step 1: extinguishing a fire, starting the fire-fighting drone (1), the fire-fighting drone (1) drives the working frame (2) to rise, the working frame (2) drives the water tank (3) to rise, when the fire-fighting drone (1) rises to the fire-fighting area, the fire-fighting drone (1) is in a suspended state, at this time, water flows into the inside of the water inlet pipe (4) through the pressure of the water pump, the water flows into the inside of the water tank (3) through the water inlet pipe (4), the water flows squeeze the lifting plate (62) inside the water tank (3), so that the lifting plate (62) slides up inside the water tank (3), when the lifting plate (62) moves to the top of the inner wall of the water tank (3), the lifting plate (62) no longer blocks the water flow, at this time, the water flows into the inside of the drain pipe (5) through the water tank (3), and the water flows toward the fire area through the drain pipe (5); Step 2: Prevent the water inlet pipe (4) from shaking. The annular plate (672) and the fixed plate (674) are arranged to limit the water inlet pipe (4) to prevent the water from shaking due to excessive impact force when the water flows inside the water inlet pipe (4). The suspension stability of the fire-fighting drone (1) is improved. When the first rotating plate (653) and the second rotating plate (654) rotate, the two plates no longer squeeze the opposite plate (662) and are elastically deformed by the return spring (663). The return spring (663) drives the square plate (662) to move vertically upward along the outer wall of the vertical rod (661), the square plate (662) drives the connecting bar (664) to move upward, the connecting bar (664) drives the round rod (671) to move upward, the round rod (671) drives the annular plate (672) to move upward, and the annular plate (672) drives the arc plate (673) to move upward. By arranging the annular plate (672), the arc plate (673) and the fixed plate (674), the wrapping range of the water inlet pipe (4) is expanded; Step 3: To improve the stability of water flow fire extinguishing, when the cross bar (651) moves, the cross bar (651) drives the elastic strip (681) to move. Due to the setting of the limit rod (683), the elastic strip (681) drives the circular plate (682) to vertically descend along the outer wall of the limit rod (683). The circular plate (682) drives the connecting rod (684) to vertically descend. The connecting rod (684) drives the disc (685) to vertically descend. The disc (685) drives the center of gravity ball (686) to vertically descend. During the descent of the center of gravity ball (686), the center of gravity of the entire device can be moved toward the center of gravity ball (686), thereby indirectly moving the center of gravity closer to the center of the device.

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