Unmanned aerial vehicle for fire rescue and method of use thereof

Abstract

The application is suitable for the technical field of unmanned aerial vehicles, and provides an unmanned aerial vehicle for fire rescue and a use method thereof.The unmanned aerial vehicle comprises a main body assembly, two groups of folding and unfolding assemblies installed at the bottom of the main body assembly, and a placing assembly arranged at the bottom of the two groups of folding and unfolding assemblies.The bottom of the placing assembly is installed with a poking assembly.The main body assembly comprises a fuselage and multiple groups of wings connected around the side wall of the fuselage.The device solves the problem that the loading and hoisting of unmanned aerial vehicles are incompatible, manual assistance is required, the conditions of disaster sites are complex, and part of the positions cannot meet the transportation requirements, resulting in the difficulty in timely delivery of materials.The device is provided with the folding and unfolding assemblies, the unmanned aerial vehicle can switch between the loading and hoisting modes, and the functionality is improved.The clamping mechanism is controlled to open and close through the electric sliding rail and the bearing plate, the materials are clamped and then moved to the target position, the L-shaped rod is driven by the double-acting cylinder to release the materials, and the materials that are not dropped are transferred by the unmanned aerial vehicle to be dropped again, so as to meet the transportation requirements of the materials.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of unmanned aerial vehicles, more particularly, it relates to a fire rescue unmanned aerial vehicle and a use method thereof. BACKGROUND

[0002] Fire rescue is a comprehensive work involving many aspects, mainly including fire fighting, rescue, social assistance and response to various disasters and accidents, etc. In flood disaster rescue, unmanned aerial vehicles play a huge role due to their advantages of rapidness, precision and all-weather. Traditional rescue methods require a large amount of manpower, material resources and time, and the rescue efficiency is low, which cannot meet the urgent needs of the people in the disaster area.

[0003] At present, the existing unmanned aerial vehicles usually adopt two main ways when transporting materials: loading and hoisting. The loading way is to fix the materials on the cargo compartment or platform of the unmanned aerial vehicle, so as to stably carry the materials in the air during flight, and to achieve the throwing of the materials through precise control when needed. The hoisting way can supplement the materials without landing the unmanned aerial vehicle. However, the hoisting way is prone to swinging, which causes the materials to sway. In order to solve this problem, the unmanned aerial vehicle is further improved by the staff so that it can use sway elimination technology to eliminate the sway of the hoisted materials and reduce the swing amplitude.

[0004] However, the loading unmanned aerial vehicle and the hoisting unmanned aerial vehicle are not compatible. That is, during the fire rescue process, the staff still needs to manually load or hoist the materials, which is affected by the environment of the transported materials. The conditions of the disaster site are various, and some disaster locations cannot meet the loading or hoisting requirements, which leads to the difficulty of timely delivery of rescue materials, resulting in the situation that the materials cannot be transported. SUMMARY

[0005] In view of the deficiencies of the prior art, the purpose of the present application is to provide a fire rescue unmanned aerial vehicle and a use method thereof.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a fire rescue unmanned aerial vehicle, comprising a main body assembly, two groups of folding and unfolding assemblies installed at the bottom of the main body assembly, and a placing assembly arranged at the bottom of the two groups of folding and unfolding assemblies, the bottom of the placing assembly is installed with a poking assembly.

[0007] The main body assembly comprises a fuselage and a plurality of wings connected around the side wall of the fuselage, each group of wings is installed with a propeller at the top of the end away from the fuselage, the bottom of the fuselage is symmetrically installed with two groups of landing gears, the bottom of the fuselage and the positions corresponding to the two landing gears are installed with two limiting mechanisms respectively, the bottom of the fuselage and the positions staggered with the two landing gears are installed with two blocking frames respectively, and the folding and unfolding assemblies and the placing assembly are arranged between the two blocking frames.

[0008] The placing assembly comprises a top plate connected to the bottoms of the two groups of folding and unfolding assemblies, two groups of side plates are symmetrically connected to the top plate, two bearing plates are horizontally and slidably connected between the two groups of side plates, a first electric sliding rail is installed in the middle of the bottom surface of the top plate, two moving seats are slidably connected to the bottom of the first electric sliding rail, the two moving seats are respectively connected to the two bearing plates, two T-shaped plates are symmetrically connected to the bottom of each of the two bearing plates, a connecting shaft is connected between the two T-shaped plates, four groups of clamping mechanisms are equidistantly arranged on the bottom of each of the two bearing plates, and each group of clamping mechanisms is connected to the two connecting shafts.

[0009] Each group of clamping mechanisms comprises two sleeves, the outer side walls of the two sleeves are respectively rotatably connected to the outer side walls of the two connecting shafts, L-shaped plates are connected to the outer side walls of the two sleeves, and two L-shaped rods are installed at the ends, away from the corresponding sleeves, of the L-shaped plates.

[0010] The placing assembly is further provided with a limiting mechanism comprising a limiting block connected to the bottom of the fuselage, an arc-shaped portion is formed in the side wall of the limiting block, and the bottom end of the arc-shaped portion is horizontally arranged and faces away from the fuselage.

[0011] By adopting the above technical scheme, when the placing assembly is retracted under the fuselage, first, two side edges of the top plate are limited by the two blocking frames, and the other two side edges of the top plate are guided by the arc-shaped portion at the bottom of the limiting block, so that the top plate is gradually placed in the position between the two blocking frames, and the situation that the placing assembly cannot be retracted due to shaking is avoided.

[0012] The placing assembly is further provided with two groups of folding and unfolding assemblies each comprising a bracket installed at the bottom of the fuselage and a spool rotatably connected to the inside of the bracket, a folding and unfolding motor is installed on one side of the bracket, the output end of the folding and unfolding motor extends to the inside of the corresponding bracket and is connected to the center of the spool, a cable is wound on the outer side wall of the spool, and one end of the cable is connected to the top of the top plate.

[0013] By adopting the above technical scheme, when the placing assembly is loading the materials, the corresponding spool is driven to rotate by the folding and unfolding motor, the cable is released or recovered in the rotating process, the placing assembly is pulled up when the cable is wound, and vice versa, the placing assembly is released to the ground, the loading and hoisting functions are compatible, the unmanned aerial vehicle can be switched between the loading and hoisting modes, and the functionality of the unmanned aerial vehicle is greatly improved.

[0014] The placing assembly is further provided with a guide rail installed on one side of each of the bearing plates, a sliding block is slidably connected to the side wall of the guide rail, and the sliding block is connected to the side wall of the corresponding side plate.

[0015] The application is further provided with: each set of the clamping mechanism comprises a connecting block installed on the bottom of the top plate, the bottom of the connecting block is horizontally installed with a first bidirectional air cylinder, both output ends of the first bidirectional air cylinder are hingedly connected with telescopic rods, and both telescopic rods are connected with the outer walls of two corresponding sleeves.

[0016] The application is further provided with: both the bearing plates are in U-shaped arrangement, the U-shaped openings of both the bearing plates face away from each other, the connecting shaft is arranged at the U-shaped opening position of the corresponding bearing plate, and the corresponding telescopic rod swings inside the U-shaped opening of the corresponding bearing plate.

[0017] By adopting the above technical scheme, when the placing assembly gradually drops to the position of the materials, the first electric slide rail is used to drive the two bearing plates to move away from each other, the bearing plates drive the corresponding T-shaped plates and the connecting shaft to move synchronously, and then the clamping mechanism is opened, when the clamping mechanism moves to the position of the side wall of the materials, the two bearing plates move close to each other, so that the clamping mechanism is closed to clamp the materials, then the unmanned aerial vehicle drives the clamped materials to move to the position to be dropped, the first bidirectional air cylinder is controlled to extend, the telescopic rod is pushed to adaptively swing, the sleeve is rotated, the L-shaped rod is tilted and opened to release the materials. The materials are thrown and dropped to the target position, the undropped materials are transferred by the unmanned aerial vehicle for dropping again, until all the materials are dropped.

[0018] The application is further provided with: the poking assembly comprises a second electric slide rail horizontally installed between the two side plates, and the second electric slide rail is located below the two bearing plates, the bottom of the second electric slide rail is slidably connected with a sliding table, the bottom of the sliding table is provided with two poking pieces, and both the poking pieces are located between the corresponding L-shaped rods.

[0019] The application is further provided with: the bottom of the sliding table is vertically downwardly installed with a lifting air cylinder, the bottom of the lifting air cylinder is horizontally installed with a second bidirectional air cylinder, and both output ends of the second bidirectional air cylinder are connected with the two poking pieces.

[0020] The application is further provided with: both sides of the two poking pieces away from each other are equally installed with three poking arms, the gaps between the three poking arms are oppositely arranged with the two L-shaped rods of the same set, and the bottom of each poking arm and the side away from the poking piece are both installed with a wedge-shaped block.

[0021] By adopting the technical scheme, the second electric sliding rail pushes the sliding table to move to a position above the corresponding material, then the lifting cylinder pushes the second double-acting cylinder and the push piece to move downward to press the material downward, then the second double-acting cylinder pushes the two push pieces to separate from each other, the push arm corresponding to the push piece is inserted between the corresponding L-shaped rods, finally the lifting cylinder pushes the second double-acting cylinder and the push piece to move downward as a whole, the push arm installed on the push piece presses the material, so that the material slides off the outer wall of the L-shaped rod and falls to the position where it needs to be dropped, and due to the shape limitation of the L-shaped rod, part of the material cannot fall after being pressed, so the wedge block moves downward at the same time when the push arm is pressed downward, and the inclined surface of the wedge block towards the material presses the side wall of the material, so that the material can move to the middle part along the inclined surface of the wedge block, and then the material can fall smoothly.

[0022] A use method of the unmanned aerial vehicle for fire rescue, using the unmanned aerial vehicle for fire rescue as described above, comprising the following steps:

[0023] S1, the staff controls the unmanned aerial vehicle to fly by controlling the controller, that is, controls the rotation of the propeller, the unmanned aerial vehicle as a whole rises, and the monitoring equipment and the communication navigation equipment are installed on the unmanned aerial vehicle, the unmanned aerial vehicle receives and processes control information and monitoring pictures in real time, and the staff controls the unmanned aerial vehicle to move to the material placement site.

[0024] S2, in this process, the staff places a plurality of materials side by side on the ground, then the staff controls the unmanned aerial vehicle to descend, so that the unmanned aerial vehicle hovers above the materials, then the staff controls the folding and unfolding assembly to operate, and then controls the placement assembly to descend to the position of the materials.

[0025] S3, after the placement assembly reaches the position of the materials, the L-shaped rods on the four sets of clamping mechanisms swing to simultaneously grab the plurality of materials placed side by side, then the height of the unmanned aerial vehicle is increased, the folding and unfolding assembly pulls the placement assembly back to the lower part of the fuselage, and the unmanned aerial vehicle transports the loaded materials to the required position.

[0026] S4, the staff opens the L-shaped rods on one of the clamping mechanisms, so that one of the materials at this position is loosened and thrown to the position where it needs to be dropped, and this is repeated until all the materials are thrown to the position where they need to be dropped.

[0027] S5, during the process of dropping the materials, the corresponding materials are pressed downward by the pushing assembly to be unhooked, so that the materials are smoothly thrown to the position where they need to be dropped.

[0028] In summary, the present application has at least one of the following beneficial technical effects:

[0029] (1) By setting the folding assembly, when the loading assembly loads the materials, the folding motor is used to drive the corresponding I-shaped wheel to rotate, and the cable is released or recovered in the rotating process. The cable pulls the loading assembly up when it is wound, and vice versa. The loading assembly is released to the ground, realizing the compatibility of loading and lifting functions. The unmanned aerial vehicle can switch between loading and lifting modes, greatly improving the functionality of the unmanned aerial vehicle.

[0030] (2) When the placing assembly is retracted under the fuselage, first, the two side edges of the top plate are limited by the two blocking frames, and the arc part at the bottom of the limiting block guides the other two side edges of the top plate. The top plate is gradually placed between the two blocking frames, avoiding the situation that the placing assembly cannot be retracted due to shaking.

[0031] (3) When the placing assembly gradually descends to the position of the materials, the first electric slide rail is used to drive the two bearing plates to separate from each other, the bearing plates drive the corresponding T-shaped plates and connecting shafts to move synchronously, and then the clamping mechanism is opened. When the clamping mechanism moves to the side wall position of the materials, the two bearing plates approach each other, causing the clamping mechanism to close and clamp the materials. Then the unmanned aerial vehicle moves the clamped materials to the position where they need to be dropped. By controlling the extension of the double-acting cylinder, the telescopic rod is pushed to adapt to the swing, the sleeve is rotated, and the L-shaped rod is tilted to open and release the materials. The materials are thrown to the target position, and the materials that have not been dropped are transferred by the unmanned aerial vehicle for re-dropping until all the materials are dropped. To meet the requirements of material transportation.

[0032] (4) By setting the poking assembly, when one of the materials is stuck in the corresponding clamping mechanism and cannot be dropped, the second electric slide rail drives the sliding table to move above this material. Then the two pokers are used to poke the material, the poking arm installed on the poker and the wedge block cooperate to extrude the material, so that the material smoothly slides off the outer wall of the L-shaped rod and falls to the position where it needs to be dropped, avoiding the situation that the material is stuck. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of the unmanned aerial vehicle for fire rescue.

[0034] Figure 2 It is a schematic diagram of the side view structure. Figure 1

[0035] Figure 3 It is a schematic diagram of the bottom structure of the present application.

[0036] Figure 4 It is a schematic diagram of the limiting mechanism structure in the present application.

[0037] Figure 5 It is a schematic diagram of the connection structure of the folding assembly and the placing assembly in the present application. ​

[0038] Figure 6 Figure 1 is a schematic view of a placement assembly structure in the present application.

[0039] Figure 7 Figure 2 is a schematic view of a bottom structure of the present application. Figure 6

[0040] Figure 8 Figure 3 is a schematic view of a side view of a placement assembly structure in the present application.

[0041] Figure 9 Figure 4 is a schematic view of a side structure of the present application. Figure 8

[0042] Figure 10 Figure 5 is a schematic view of a clamping mechanism structure.

[0043] Figure 11 Figure 6 is a schematic view of an L-shaped rod in a horizontal state in the present application.

[0044] Figure 12 Figure 7 is a schematic view of a connection structure of a side plate and a pushing assembly in the present application.

[0045] Figure 13 Figure 8 is a schematic view of a cooperation of an L-shaped rod and a pushing plate in the present application.

[0046] Figure 1 is a schematic view of a placement assembly structure in the present application.

[0047] Figure 2 is a schematic view of a bottom structure of the present application.

[0048] Figure 3 is a schematic view of a side view of a placement assembly structure in the present application.

[0049] Figure 4 is a schematic view of a side structure of the present application.

[0050] Figure 5 is a schematic view of a clamping mechanism structure.

[0051] Figure 6 is a schematic view of an L-shaped rod in a horizontal state in the present application. DETAILED DESCRIPTION

[0052] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. ​​

[0053] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs.

[0054] Please refer to Figures 1-13 The present application provides the following technical solutions:

[0055] Embodiment one, please refer to Figures 1-3 A kind of unmanned plane for fire rescue, including main body component 1, main body component 1 is the overall structure of unmanned plane, the specific structure of main body component 1 is as follows:

[0056] Please refer to Figures 1-3 Main body component 1 includes fuselage 11 and multiple groups of wings 12 connected around the side wall of fuselage 11, each group of wings 12 is installed with propeller 13 at the top of one end away from fuselage 11, wings 12 are arranged around fuselage 11, and propeller 13 on wings 12 is used to drive wings 12 and fuselage 11 to lift, in turn drive unmanned plane to rise and reduce, generate lift and thrust by aerodynamics principle, realize flight function, and fuselage 11 is loaded with electronic control system, including sensor, controller, communication equipment and navigation equipment, sensor is used to collect the flight attitude, speed, height and other information of unmanned plane in real time, according to the data collected by sensor, controller will send instruction to control the motor, rudder and other components of unmanned plane, to adjust the flight attitude and flight direction of unmanned plane, communication equipment realizes the communication between unmanned plane and ground control station, and navigation equipment is used to determine the position information of unmanned plane.Combined with other sensor data, navigation equipment can help unmanned plane to realize accurate navigation and positioning.

[0057] Please refer to Figures 1-3 The bottom of fuselage 11 is symmetrically installed with two groups of landing gear 14, when unmanned plane lands, fuselage 11 is supported by landing gear 14, two stops 15 are installed on the bottom of fuselage 11 and staggered with two landing gears 14, and a placing assembly 3 is arranged between the two stops 15, the placing assembly 3 is used to place materials, that is, when the whole unmanned plane lands on the ground, the staff places the materials in the storage of placing assembly 3, and the unmanned plane can move the materials to the required position.

[0058] Please refer to Figures 4-8The placing assembly 3 comprises a top plate 31 connected to the bottoms of the two groups of folding assemblies 2, two groups of side plates 32 are symmetrically connected to the top plate 31, the top plate 31 and the side plates 32 cooperate to form a placing main body, two bearing plates 35 are horizontally and slidably connected between the two groups of side plates 32, a first electric sliding rail 36 is installed at the middle of the bottom surface of the top plate 31, two moving seats are slidably connected to the bottom of the first electric sliding rail 36, the two moving seats are connected to the two bearing plates 35 respectively, the first electric sliding rail 36 can be a stepper motor linear sliding rail screw sliding table module, that is, a stepper motor is used to drive the rotation of a screw in a linear sliding rail, the screw in the first electric sliding rail 36 is a bidirectional screw, two sliding tables are threadedly connected to the bidirectional screw, when the bidirectional screw rotates, the two sliding tables are driven to move close to or away from each other, the two sliding tables are connected to the two moving seats respectively, the moving seats drive the corresponding bearing plates 35 to move when moving, so that the two bearing plates 35 move close to or away from each other, the materials can be placed between the two bearing plates 35, and then the unmanned aerial vehicle moves the materials to the required position, and then the two bearing plates 35 are separated from each other, so that the materials can be thrown in the state that the unmanned aerial vehicle is suspended in the air.

[0059] Referring to Figure 5 In the embodiment, the guide rail 34 is installed on the side of each bearing plate 35 close to the side plate 32, the side wall of the guide rail 34 is slidably connected with a sliding block 33, the sliding block 33 is connected with the side wall of the corresponding side plate 32, when the bearing plate 35 moves between the two side plates 32, the bearing plate 35 drives the guide rail 34 to slide on the fixed sliding block 33, thereby guiding the movement of the bearing plate 35.

[0060] In the embodiment, the guide rail 34 is installed on the side of each bearing plate 35 close to the side plate 32, the side wall of the guide rail 34 is slidably connected with a sliding block 33, the sliding block 33 is connected with the side wall of the corresponding side plate 32, when the bearing plate 35 moves between the two side plates 32, the bearing plate 35 drives the guide rail 34 to slide on the fixed sliding block 33, thereby guiding the movement of the bearing plate 35.

[0061] Therefore, referring to Figure 5 Two groups of folding assemblies 2 are installed at the bottom of the fuselage 11, the placing assembly 3 is hoisted by the two groups of folding assemblies 2, and the placing assembly 3 can be retracted into the bottom of the fuselage 11 by the folding assemblies 2 or released onto the ground in the state that the unmanned aerial vehicle is suspended in the air, and the specific structure of the folding assembly 2 is as follows:

[0062] Referring to Figure 5In the embodiment, each of the two groups of folding and unfolding assemblies 2 comprises a support 21 mounted on the bottom of the fuselage 11 and a spool 22 rotatably connected to the inside of the support 21. One side of the support 21 is provided with a folding and unfolding motor 23, the output end of the folding and unfolding motor 23 extends to the inside of the corresponding support 21 and is connected to the center of the spool 22. The outer side wall of the spool 22 is provided with a cable, one end of the cable is connected to the top of the top plate 31. The folding and unfolding motor 23 is used to drive the corresponding spool 22 to rotate, and the cable is released or recovered in the rotating process. When the cable is wound, the placement assembly 3 is pulled to move upwards, and vice versa, the placement assembly 3 is released to the ground.

[0063] Referring to Figure 3 and Figure 4 Two limiting mechanisms 16 are mounted on the bottom of the fuselage 11 and correspond to the two landing gears 14. When the placement assembly 3 is retracted under the fuselage 11 after loading or empty, the unmanned aerial vehicle needs to be in a suspended state. In this state, the placement assembly 3 will swing due to the influence of the flight of the unmanned aerial vehicle and the surrounding environment. Therefore, the limiting mechanism 16 is used to guide and limit the placement assembly 3. The specific structure of the limiting mechanism 16 is as follows:

[0064] Referring to Figure 4 The limiting mechanism 16 comprises a limiting block 161 connected to the bottom of the fuselage 11. An arc-shaped portion 162 is formed in the side wall of the limiting block 161. The bottom end of the arc-shaped portion 162 is horizontally arranged and faces away from the fuselage 11. Two blocking frames 15 limit two side edges of the top plate 31, and the arc-shaped portion 162 at the bottom of the limiting block 161 guides the other two side edges of the top plate 31. The top plate 31 is gradually placed between the two blocking frames 15 under the limitation, avoiding the situation that the placement assembly 3 cannot be retracted due to shaking.

[0065] In the third embodiment, during the fire rescue process, the staff still needs to manually load or hoist auxiliary work of materials. Due to the influence of the environment of the transported materials, some disaster locations cannot meet the loading or hoisting requirements, resulting in the situation that the materials cannot be transported.

[0066] Therefore, while the placement assembly 3 is set to be able to fold and unfold, the placement assembly 3 is used to clamp the materials placed on the ground, so that the staff does not need to manually load and hoist and bind, and after clamping multiple materials, each material can be released individually to meet the requirements of material transportation. The specific structure is as follows:

[0067] Referring to Figure 5 , Figure 6 and Figure 9Two T-shaped plates 38 are symmetrically connected to the bottom of each of the two bearing plates 35, and a connecting shaft 39 is connected between the two T-shaped plates 38. Four sets of clamping mechanisms 37 are equidistantly arranged on the bottom of the two bearing plates 35, and each set of clamping mechanisms 37 is connected to the two connecting shafts 39.

[0068] The worker places multiple materials side by side on the ground, then controls the UAV to descend, and the UAV hovers above the materials. Then the worker controls the two collecting and releasing motors 23 to operate, and the collecting and releasing motors 23 drive the corresponding spools 22 to rotate. The cable wound on the spool 22 is released, and the placing assembly 3 gradually descends under the action of gravity during the release process, so that the placing assembly 3 gradually descends to the position of the materials. During the descending process of the placing assembly 3, the two moving seats of the first electric sliding rail 36 move away from each other, so that the two bearing plates 35 move away from each other. The bearing plates 35 drive the corresponding T-shaped plates 38 and connecting shafts 39 to move synchronously, so that the clamping mechanisms 37 open. When the clamping mechanisms 37 move to the side wall position of the materials, the two bearing plates 35 move close to each other, so that the clamping mechanisms 37 close to clamp the materials. Then the placing assembly 3 is retracted to the bottom of the UAV, and the UAV moves the clamped materials to the position where they need to be released. Each clamping mechanism 37 releases one material, so as to meet the requirements of material transportation.

[0069] Referring to Figures 9-11 , the specific structure of the clamping mechanism 37 is as follows:

[0070] Each set of clamping mechanisms 37 includes two sleeves 374, which are respectively rotatably connected to the outer side walls of the two connecting shafts 39. The outer side walls of the two sleeves 374 are connected with L-shaped plates 375, and the L-shaped plates 375 away from the corresponding sleeves 374 are provided with two L-shaped rods 376. When the sleeve 374 rotates on the outer wall of the connecting shaft 39, the L-shaped plate 375 and the corresponding L-shaped rod 376 can be swung, so as to adjust the angle of the L-shaped rod 376.

[0071] Referring to Figures 9-11Each set of clamping mechanism 37 further comprises a connecting block 372 mounted on the bottom of the top plate 31, the bottom of the connecting block 372 is horizontally mounted with a first bidirectional air cylinder 371, both output ends of the first bidirectional air cylinder 371 are hinged with telescopic rods 373, and both telescopic rods 373 are connected with the outer walls of corresponding two sleeve pipes 374 respectively. When the two bearing plates 35 are driven to separate from each other by the first electric sliding rail 36, one end of the corresponding telescopic rod 373 is kept in a positioning state by the first bidirectional air cylinder 371, and the other end of the telescopic rod 373 is pushed to an inclined state, and the telescopic rod 373 is self-adapted to be lengthened. At this time, the telescopic rod 373 changes the angle while driving the corresponding sleeve pipe 374 to rotate on the outer side wall of the connecting shaft 39, and then the L-shaped plate 375 and the L-shaped rod 376 swing, the L-shaped rod 376 on the same set of clamping mechanism 37 swings to an inclined open state, in this state, the clamping mechanism 37 can be lowered to the side wall position of the goods, the first electric sliding rail 36 drives the two bearing plates 35 to move close to each other, the telescopic rod 373 is self-adapted to be contracted, the sleeve pipe 374 is rotated, the L-shaped plate 375 and the L-shaped rod 376 swing to the vertical state, and then the placing assembly 3 is retracted and the goods are moved by the unmanned aerial vehicle.

[0072] Each clamping mechanism 37 releases one goods separately to meet the requirements of goods transportation, and the specific operation is as follows:

[0073] By controlling the piston rod of one of the first bidirectional air cylinders 371 to be lengthened, the first bidirectional air cylinder 371 drives the corresponding two telescopic rods 373 to swing, the telescopic rod 373 is self-adapted to be contracted, the telescopic rod 373 drives the corresponding sleeve pipe 374 to rotate on the outer side wall of the connecting shaft 39, so that the corresponding L-shaped rod 376 swings to an inclined open state, and one of the goods at this position is loosened. The goods are thrown to the position where they need to be thrown, and the other goods that have not been thrown can be moved to other positions by the unmanned aerial vehicle for throwing until all the goods are thrown to the position where they need to be thrown.

[0074] Referring to Figure 10 Both bearing plates 35 are arranged in a U shape, and the U-shaped openings of the two bearing plates 35 face away from each other, and the connecting shaft 39 is arranged at the position of the U-shaped opening of the corresponding bearing plate 35. In order to avoid that the telescopic rod 373 is blocked by the bearing plate 35 when it swings, the shape of the bearing plate 35 is specially arranged, and the corresponding telescopic rod 373 swings inside the U-shaped opening of the corresponding bearing plate 35 to achieve the purpose of not interfering with each other.

[0075] In the fourth embodiment, since the shapes of the materials are different, when the placing assembly 3 clamps the materials, the binding belts or protrusions on the materials may be clamped in one set of clamping mechanisms 37 and cannot be placed, thereby affecting the rescue operation. Therefore, the poking assembly 4 is installed at the bottom of the placing assembly 3, and the poking assembly 4 is used to press and poke the materials downward to avoid the clamping of the materials. The specific structure of the poking assembly 4 is as follows:

[0076] Referring to Figure 12 and Figure 13 , the poking assembly 4 includes the second electric sliding rail 41 horizontally installed between the two side plates 32 and located below the two bearing plates 35. The bottom of the second electric sliding rail 41 is slidably connected with the sliding table 42. The bottom of the sliding table 42 is provided with the two poking pieces 45. The two poking pieces 45 are located between the two L-shaped rods 376 arranged correspondingly. The second electric sliding rail 41 can be a stepping motor linear sliding rail sliding seat module, that is, a stepping motor is used to drive the rotation of a screw rod inside a linear sliding rail, so that a sliding seat connected with the screw rod outside is displaced. The sliding table 42 is connected with the sliding seat of the second electric sliding rail 41. When the sliding seat on the second electric sliding rail 41 moves, the sliding table 42 moves synchronously. That is, when one of the materials is clamped on the corresponding clamping mechanism 37 and cannot be placed, the second electric sliding rail 41 drives the sliding table 42 to move above the material, and then the two poking pieces 45 are used to poke the material, so that the material can be placed smoothly.

[0077] Referring to Figure 12 and Figure 13 , the driving mode of the poking piece 45 is as follows:

[0078] In the embodiment, the bottom of the sliding table 42 is vertically downwardly installed with the lifting cylinder 43. The bottom of the lifting cylinder 43 is horizontally installed with the second bidirectional cylinder 44. The two output ends of the second bidirectional cylinder 44 are connected with the two poking pieces 45. The sides away from the poking pieces 45 of the two poking pieces 45 are equally installed with the three poking arms 46. The gaps between the three poking arms 46 are oppositely arranged with the two L-shaped rods 376 of the same set. The bottoms of the three poking arms 46 and the sides away from the poking pieces 45 are installed with the wedge-shaped blocks 47.

[0079] The second electric sliding rail 41 pushes the sliding table 42 to move to the position above the corresponding goods, and then the lifting cylinder 43 pushes the second double-acting cylinder 44 and the push piece 45 to move downward to press the goods downward, then the second double-acting cylinder 44 pushes the two push pieces 45 to separate from each other, the push arm 46 corresponding to the push piece 45 is inserted between the corresponding L-shaped rods 376, and finally the lifting cylinder 43 pushes the second double-acting cylinder 44 and the push piece 45 to move downward as a whole, the push arm 46 installed on the push piece 45 presses the goods, so that the goods slide off the outer wall of the L-shaped rod 376 and fall to the position where it is needed to be dropped, and because of the shape limitation of the L-shaped rod 376, part of the goods cannot fall after being pressed, so the wedge-shaped block 47 moves downward at the same time when the push arm 46 is pressed, and the inclined surface of the wedge-shaped block 47 towards the goods presses the side wall of the goods, so that the goods can move to the middle along the inclined surface of the wedge-shaped block 47, and then the goods can fall smoothly.

[0080] Embodiment five, a method for using the unmanned aerial vehicle for fire rescue, using the unmanned aerial vehicle for fire rescue, comprising the following steps:

[0081] S1, the staff controls the unmanned aerial vehicle to fly by controlling the controller, that is, controls the rotation of the propeller 13, the unmanned aerial vehicle as a whole rises, and the monitoring equipment and the communication navigation equipment are installed on the unmanned aerial vehicle, the unmanned aerial vehicle receives and processes the control information and the monitoring picture in real time, and the staff controls the unmanned aerial vehicle to move to the position where the goods are placed.

[0082] S2, in this process, the staff places a plurality of goods side by side on the ground, then the staff controls the unmanned aerial vehicle to descend, so that the unmanned aerial vehicle hovers above the goods, then the staff controls the folding and unfolding assembly 2 to operate, and then controls the placing assembly 3 to descend to the position of the goods.

[0083] S2 more specific steps are:

[0084] S21, after the staff places a plurality of goods side by side on the ground, the staff controls the unmanned aerial vehicle to descend, so that the unmanned aerial vehicle hovers above the goods, then the staff controls the two folding and unfolding motors 23 to operate, the folding and unfolding motors 23 drive the corresponding spools 22 to rotate, and the cable wound on the spool 22 is released, during the releasing process, the placing assembly 3 gradually descends under the action of gravity, so that the placing assembly 3 descends to the position of the goods.

[0085] S3, after the placing assembly 3 reaches the position of the goods, the L-shaped rods 376 on the four sets of clamping mechanisms 37 swing to grab a plurality of goods placed side by side at the same time, then the height of the unmanned aerial vehicle is increased, the folding and unfolding assembly 2 pulls the placing assembly 3 back to the lower side of the fuselage 11, and the unmanned aerial vehicle transports the loaded goods to the required position.

[0086] S3 more specific steps are:

[0087] S31, before the placement assembly 3 reaches the position of the materials, first separate the two moving seats of the first electric slide rail 36, causing the two bearing plates 35 to separate, in this process, the first double-action cylinder 371 pulls one end of the corresponding telescopic rod 373 to keep it in a fixed position, while the other end is pushed to an inclined state, and the telescopic rod 373 is automatically lengthened, at this time, the telescopic rod 373 changes its angle, causing the corresponding sleeve 374 to rotate on the outer wall of the connecting shaft 39, and then the L-shaped plate 375 and the L-shaped rod 376 swing, and the L-shaped rod 376 on the same set of clamping mechanisms 37 swings to an inclined open state.

[0088] S32, the placement assembly 3 is lowered as a whole, causing the two L-shaped rods 376 to move to the side wall position of the materials, then the first electric slide rail 36 brings the two bearing plates 35 closer to each other, the telescopic rod 373 is automatically retracted, the sleeve 374 rotates, and the L-shaped plate 375 and the L-shaped rod 376 swing to a vertical state, and then the materials are clamped.

[0089] S33, then the height of the unmanned aerial vehicle is raised, the cable wound on the spool 22 is reeled in, and the placement assembly 3 is pulled back under the fuselage 11, in this process, the two stops 15 limit two sides of the top plate 31, and the arc-shaped part 162 at the bottom of the limiting block 161 guides the other two sides of the top plate 31, and the top plate 31 is gradually placed between the two stops 15.

[0090] S4, the staff opens the L-shaped rod 376 on one of the clamping mechanisms 37, causing one of the materials at this position to be loosened, and the material is thrown into the position where it needs to be thrown, and this process is repeated until all the materials are thrown into the position where they need to be thrown.

[0091] S4 more specific steps are:

[0092] S41, then the staff extends the piston rod of one of the first double-action cylinders 371, the first double-action cylinder 371 pushes the corresponding two telescopic rods 373 to swing, the telescopic rod 373 is automatically retracted, the telescopic rod 373 pushes the corresponding sleeve 374 to rotate on the outer wall of the connecting shaft 39, causing the corresponding L-shaped rod 376 to swing to an inclined open state, one of the materials at this position is loosened, and the material is thrown into the position where it needs to be thrown, and this process is repeated until all the materials are thrown into the position where they need to be thrown.

[0093] S5, during the throwing of the materials, the corresponding materials are pressed down and unhooked by the poking assembly 4, so that the materials are successfully thrown into the position where they need to be thrown.

[0094] S5 more specific steps are:

[0095] S51, the second electric sliding rail 41 drives the sliding table 42 to move to the position above the material during the process of putting the material, then the lifting cylinder 43 drives the second double-acting cylinder 44 and the push piece 45 to move downward to press the material downward, then the second double-acting cylinder 44 drives the two push pieces 45 to separate from each other, the push arm 46 corresponding to the push piece 45 is inserted between the corresponding L-shaped rods 376, finally the lifting cylinder 43 drives the second double-acting cylinder 44 and the push piece 45 to move downward as a whole, the push arm 46 and the wedge block 47 installed on the push piece 45 cooperate to press the material, so that the material slides off the outer wall of the L-shaped rod 376 and falls to the position where it needs to be put.

[0096] Obviously, the above-described embodiments are only 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 labor should belong to the protection scope of the present application.

Claims

1. A drone for fire rescue, characterized in that: Including the main body assembly (1), two groups of retractable assembly (2) installed on the bottom of the main body assembly (1) and the placement assembly (3) arranged at the bottom of the two groups of retractable assembly (2), the bottom of the placement assembly (3) is installed with the dialing assembly (4); The main body assembly (1) includes a fuselage (11) and a plurality of wings (12) connected to the side wall of the fuselage (11), the top of the end of each group of wings (12) away from the fuselage (11) is installed with a propeller (13), the bottom of the fuselage (11) is symmetrically installed with two groups of landing gear (14), the bottom of the fuselage (11) and the positions corresponding to the two landing gear (14) are installed with two limiting mechanisms (16), the bottom of the fuselage (11) and the positions corresponding to the two landing gear (14) are installed with two blocking frames (15), the retractable assembly (2) and the placement assembly (3) are arranged between the two blocking frames (15); The placement assembly (3) includes a top plate (31) connected to the bottom of the two groups of retractable assembly (2), the top plate (31) is symmetrically connected with two groups of side plates (32), two groups of the side plates (32) are horizontally and slidably connected with two bearing plates (35), the bottom surface of the top plate (31) is installed with a first electric sliding rail (36), the bottom of the first electric sliding rail (36) is slidably connected with two moving seats, the two moving seats are respectively connected with the two bearing plates (35), the bottom of each of the two bearing plates (35) is symmetrically connected with two T-shaped plates (38), the two T-shaped plates (38) are connected with a connecting shaft (39), the bottom of each of the two bearing plates (35) is equidistantly provided with four groups of clamping mechanisms (37), each group of the clamping mechanisms (37) is connected with the two connecting shafts (39); Each group of the clamping mechanisms (37) includes two sleeve pipes (374), the outer side walls of the two sleeve pipes (374) are respectively rotatably connected with the two connecting shafts (39), the outer side walls of the two sleeve pipes (374) are connected with L-shaped plates (375), the ends of the L-shaped plates (375) away from the corresponding sleeve pipes (374) are installed with two L-shaped rods (376).

2. The unmanned aerial vehicle for fire rescue according to claim 1, characterized in that: The limiting mechanism (16) includes a limiting block (161) connected to the bottom of the fuselage (11), an arc-shaped part (162) is formed in the side wall of the limiting block (161), the bottom end of the arc-shaped part (162) is horizontally arranged and faces away from the fuselage (11).

3. The unmanned aerial vehicle for fire rescue according to claim 1, characterized in that: Each of the two groups of retractable assembly (2) includes a bracket (21) installed on the bottom of the fuselage (11) and a spool (22) rotatably connected in the bracket (21), one side of the bracket (21) is installed with a retractable motor (23), the output end of the retractable motor (23) extends to the inside of the corresponding bracket (21) and is connected with the center of the spool (22), the outer side wall of the spool (22) is wound with a cable, one end of the cable is connected with the top of the top plate (31).

4. The unmanned aerial vehicle for fire rescue according to claim 1, characterized in that: Each of the bearing plates (35) is installed with a guide rail (34) near one side of the side plate (32), and a sliding block (33) is slidingly connected to the side wall of the guide rail (34), and the sliding block (33) is connected with the side wall of the corresponding side plate (32).

5. The unmanned aerial vehicle for fire rescue according to claim 4, characterized in that: Each of the clamping mechanisms (37) comprises a connecting block (372) installed at the bottom of the top plate (31), a first bidirectional air cylinder (371) is horizontally installed at the bottom of the connecting block (372), and a telescopic rod (373) is hinged to the two output ends of the first bidirectional air cylinder (371), and the two telescopic rods (373) are respectively connected with the outer walls of the corresponding two sleeve pipes (374).

6. The unmanned aerial vehicle for fire rescue according to claim 5, characterized in that: The two bearing plates (35) are arranged in a U shape, the U-shaped openings of the two bearing plates (35) face away from each other, the connecting shaft (39) is arranged at the U-shaped opening position of the corresponding bearing plate (35), and the corresponding telescopic rod (373) swings inside the U-shaped opening of the corresponding bearing plate (35).

7. The unmanned aerial vehicle for fire rescue according to claim 1, characterized in that: The dialing assembly (4) comprises a second electric sliding rail (41) horizontally installed between the two side plates (32), and the second electric sliding rail (41) is located below the two bearing plates (35), a sliding table (42) is slidingly connected to the bottom of the second electric sliding rail (41), and two dialing pieces (45) are arranged at the bottom of the sliding table (42), and the two dialing pieces (45) are located between the two L-shaped rods (376) arranged opposite to each other.

8. The unmanned aerial vehicle for fire rescue according to claim 7, characterized in that: A lifting air cylinder (43) is vertically installed downward at the bottom of the sliding table (42), a second bidirectional air cylinder (44) is horizontally installed at the bottom of the lifting air cylinder (43), and the two output ends of the second bidirectional air cylinder (44) are connected with the two dialing pieces (45).

9. The unmanned aerial vehicle for fire rescue according to claim 8, characterized in that: The two dialing pieces (45) are located between the two L-shaped rods (376) arranged opposite to each other.

10. A method of using a drone for firefighting rescue, using the drone for firefighting rescue according to any one of claims 1 to 9, characterized in that, The following steps are included: S1, the staff controls the unmanned aerial vehicle to fly by controlling the controller, that is, controls the rotation of the propeller (13), the unmanned aerial vehicle as a whole rises, and a monitoring device and a communication navigation device are installed on the unmanned aerial vehicle, the unmanned aerial vehicle receives and processes control information and monitoring pictures in real time, and the staff controls the unmanned aerial vehicle to move to a material placing location; S2, in this process, the staff places multiple materials side by side on the ground, then the staff controls the unmanned aerial vehicle to descend, so that the unmanned aerial vehicle hovers above the materials, then the staff controls the folding and unfolding assembly (2) to operate, and then controls the placing assembly (3) to descend to the position of the materials; S3, after the placing assembly (3) reaches the position of the materials, the L-shaped rods (376) on the four clamping mechanisms (37) swing to clamp the multiple materials placed side by side at the same time, then the height of the unmanned aerial vehicle is increased, the folding and unfolding assembly (2) pulls the placing assembly (3) back to below the fuselage (11), and the unmanned aerial vehicle transports the loaded materials to a required position; S4, the staff opens the L-shaped rod (376) on one of the sets of clamping mechanisms (37), causing one of the materials in this position to be loosened, and the material is thrown to the position where it needs to be thrown, and this is repeated until all the materials are thrown to the position where they need to be thrown; S5, during the throwing of the materials, the corresponding materials are pressed and unhooked by the poking assembly (4), so that the materials are successfully thrown to the position where they need to be thrown.

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