Mooring unmanned aerial vehicle fire extinguishing system

Abstract

The utility model relates to the technical field of unmanned aerial vehicles, and provides a mooring unmanned aerial vehicle fire fighting system which comprises a fire fighting truck, a mooring unmanned aerial vehicle and an unmanned aerial vehicle positioning device arranged on the fire fighting truck. The unmanned aerial vehicle positioning device comprises a coarse positioning assembly and a fine positioning assembly, the coarse positioning assembly comprises a first guide support and two second guide supports, a guide groove is formed in the first guide support, first inclined guide parts inclined outwards are formed on the second guide supports, and the fine positioning assembly comprises a guide supporting seat. The diameter of the guide supporting seat is gradually reduced from bottom to top, so that a second inclined guide part is formed on the side part of the guide supporting seat; an unmanned aerial vehicle undercarriage is arranged at the bottom of the mooring unmanned aerial vehicle, and a guide rod used for being matched with the guide groove is arranged at one end of the bottom of the unmanned aerial vehicle undercarriage. According to the utility model, the defects that the landing precision of the unmanned aerial vehicle is improved by arranging a plurality of high-precision sensors and the cost is high in the existing mooring unmanned aerial vehicle fire fighting truck are overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicles (UAVs), and in particular to a tethered UAV fire-fighting system. Background Art

[0002] The tethered drone fire truck combines drone technology with firefighting capabilities, aiming to improve fire rescue efficiency. The drone can operate in conjunction with fire trucks equipped with water or fire extinguisher tanks for aerial firefighting. It can also conduct fire reconnaissance and real-time monitoring using high-definition cameras, helping ground firefighters develop more effective rescue plans.

[0003] After monitoring or extinguishing a fire, a tethered drone needs to return to the fire truck's landing platform. Existing technologies typically use multiple high-precision sensors to collect the drone's location information, enabling more precise flight control and landing of the drone. However, due to the relatively high cost of high-precision sensors, installing multiple high-precision sensors directly increases manufacturing costs, and the increased number of sensors also increases the probability of drone landing failures. Utility Model Content

[0004] The utility model provides a tethered drone fire-fighting system, which is used to solve the defect that the existing tethered drone fire-fighting truck improves the landing accuracy of the drone by setting multiple high-precision sensors, but has high cost.

[0005] The utility model provides a tethered drone fire-fighting system, comprising a fire truck, a tethered drone and a drone positioning device, wherein the drone positioning device is arranged on the fire truck.

[0006] The UAV positioning device includes a coarse positioning component and a fine positioning component. The coarse positioning component includes a first guide bracket and two second guide brackets arranged at intervals along the circumferential direction. The first guide bracket is formed with a guide groove, and the second guide bracket is formed with a first inclined guide portion inclined outward. The fine positioning component includes a guide support seat, and the diameter of the guide support seat gradually decreases from bottom to top to form a second inclined guide portion on the side of the guide support seat. The first guide bracket and the two second guide brackets are all located on the periphery of the guide support seat.

[0007] A drone landing gear is provided at the bottom of the tethered drone, and the bottom of the drone landing gear is used to cooperate with the first inclined guide portion. One end of the bottom of the drone landing gear is provided with a guide rod for cooperating with the guide groove, and a cooperating portion for cooperating with the second inclined guide portion is formed on the drone landing gear.

[0008] According to the tethered drone fire-fighting system provided by the present invention, a receiving groove is provided on the top of the fire truck, and a pipe and cable storage basket is provided in the receiving groove; the first guide bracket and the second guide bracket are both provided on the top of the fire truck and located on the periphery of the receiving groove, and the guide support seat is provided on the top of the pipe and cable storage basket.

[0009] According to the tethered drone fire-fighting system provided by the present invention, the first guide bracket is located on the first side of the accommodating slot, and the two second guide brackets are spaced apart on the second side of the accommodating slot, and the first side and the second side of the accommodating slot are arranged opposite to each other.

[0010] According to the tethered drone fire-fighting system provided by the present invention, the vertical distance between the top of the pipe and cable storage basket and the upper end of the accommodating groove is less than or equal to 10 mm.

[0011] According to the tethered drone fire-fighting system provided by the present invention, the guide support seat includes an upper support ring and a lower support ring that are coaxial and spaced apart along the vertical direction, and the diameter of the upper support ring is smaller than the diameter of the lower support ring; a plurality of first side connecting rods are spaced apart between the upper support ring and the lower support ring to form the second inclined guide portion through the plurality of first side connecting rods.

[0012] According to the tethered drone fire-fighting system provided by the present invention, the drone landing gear includes an upper fixing ring and a lower guide ring that are coaxial and spaced apart in the vertical direction, and the diameter of the upper fixing ring is smaller than the diameter of the lower guide ring; a plurality of second side connecting rods are spaced apart between the fixing ring and the guide ring to form the matching portion on the side of the drone landing gear through the plurality of second side connecting rods.

[0013] According to the tethered drone fire-fighting system provided by the present invention, a plurality of rolling guide mechanisms are provided on the side of the guide support seat at intervals along the circumferential direction, and the rolling guide mechanisms are used to cooperate with the second side connecting rod.

[0014] According to the tethered drone fire-fighting system provided by the present invention, the guide groove includes a guide section and a limit section, the end of the guide section is connected to the head end of the limit section, and the limit section is located below the guide section.

[0015] According to the tethered drone firefighting system provided by the present invention, the first guide bracket includes a first fixing plate and two first guide members, the first fixing plate is connected to the top of the fire truck, and the first guide member is formed with a first inclined section and a first straight section, the end of the first inclined section is connected to the beginning of the first straight section; the two first guide members are symmetrically arranged on the first fixing plate, and the guide section is formed between the two first inclined sections, and the limiting section is formed between the two first straight sections;

[0016] The second guide bracket includes a second fixing plate and a second guide member, the second fixing plate is connected to the top of the fire truck, and a second inclined section and a second straight section are formed on the second guide member. The end of the second inclined section is connected to the head end of the second straight section, and the end of the second straight section is connected to the second fixing plate.

[0017] According to the tethered UAV fire-fighting system provided by the present invention, the guide support seat is provided with a plurality of flexible support members spaced apart along the circumferential direction, and the flexible support members are used to support the UAV landing gear.

[0018] The tethered drone fire-fighting system provided by the present invention arranges a drone positioning device on a fire truck. When the drone lands, the bottom of the drone landing gear first contacts the two second guide brackets. The second inclined guide part on the second guide bracket drives the drone to move toward the center of the set position. At the same time, the guide rod on the drone landing gear returns the drone to the center under the guidance of the guide groove on the first guide bracket. Then the matching part on the drone landing gear cooperates with the second inclined guide part on the side of the guide support seat. The whole process only requires positioning the drone above the drone positioning device. Subsequently, the drone can be accurately self-landed without using any sensors for auxiliary positioning, which solves the problem of high cost in the prior art of improving the landing accuracy of the drone by setting multiple high-precision sensors.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 Schematic diagram of a drone firefighting system provided by an embodiment of the present invention.

[0022] Figure 2 This is a schematic diagram of a drone positioning device in a drone firefighting system provided by an embodiment of the present invention.

[0023] Figure 3 It is a schematic diagram of a coarse positioning component in a UAV firefighting system provided by an embodiment of the present utility model.

[0024] Figure 4It is a schematic diagram of the precise positioning component in the drone firefighting system provided by an embodiment of the present utility model.

[0025] Figure 5 It is a schematic diagram of the landing gear of a drone in the drone fire-fighting system provided by an embodiment of the present invention.

[0026] Figure 6 This is a schematic diagram of the first guide bracket in the drone firefighting system provided by an embodiment of the present utility model.

[0027] Figure 7 This is a schematic diagram of the second guide bracket in the drone firefighting system provided by an embodiment of the present utility model.

[0028] Reference numerals:

[0029] 10. Fire truck; 110. Accommodation slot; 20. Tethered drone; 210. UAV landing gear; 211. Guide rod; 212. Upper fixing ring; 213. Lower guide ring; 214. Second side link; 30. UAV positioning device; 310. Coarse positioning assembly; 311. First guide bracket; 3111. Guide slot; 3111a. Guide section; 3111b. Limiting section; 3112. First fixing plate; 3113. First guide member ; 312, second guide bracket; 3121, first inclined guide part; 3122, second fixed plate; 3123, second guide member; 320, precision positioning assembly; 321, guide support seat; 3211, second inclined guide part; 3212, upper support ring; 3213, lower support ring; 3214, first side connecting rod; 3215, reinforcing connecting rod; 3216, third side connecting rod; 3217, flexible support member; 40, pipe and cable storage basket. DETAILED DESCRIPTION

[0030] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0032] In the description of the embodiments of the present invention, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0033] In the embodiments of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," or "above" a second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below," "below," or "below" a second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is lower in level than the second feature.

[0034] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0035] The following combination Figures 1 to 7 The present invention describes a tethered drone firefighting system.

[0036] See also Figures 1 to 4 As shown, the tethered drone firefighting system provided by the embodiment of the present invention includes: a fire truck 10, a tethered drone 20 and a drone positioning device 30, and the drone positioning device 30 is arranged on the fire truck 10.

[0037] Among them, the drone positioning device 30 includes a coarse positioning component 310 and a fine positioning component 320. The coarse positioning component 310 includes a first guide bracket 311 and two second guide brackets 312 arranged at intervals along the circumferential direction. A guide groove 3111 is formed on the first guide bracket 311, and a first inclined guide portion 3121 inclined outward is formed on the second guide bracket 312. The fine positioning component 320 includes a guide support seat 321. The diameter of the guide support seat 321 gradually decreases from bottom to top to form a second inclined guide portion 3211 on the side of the guide support seat 321. The first guide bracket 311 and the two second guide brackets 312 are all located on the periphery of the guide support seat 321.

[0038] A drone landing gear 210 is provided at the bottom of the tethered drone 20. The bottom of the drone landing gear 210 is used to cooperate with the first inclined guide portion 3121. One end of the bottom of the drone landing gear 210 is provided with a guide rod 211 for cooperating with the guide groove 3111. A cooperating portion for cooperating with the second inclined guide portion 3211 is formed on the drone landing gear 210.

[0039] The tethered drone fire-fighting system provided by the present invention is a system in which a drone positioning device 30 is arranged on a fire truck 10. When the drone lands, the bottom of the drone landing gear 210 first contacts the two second guide brackets 312. The first inclined guide portion 3121 on the second guide bracket 312 drives the drone to move toward the center of the set position. At the same time, the guide rod 211 on the drone landing gear 210 is guided by the guide groove 3111 on the first guide bracket 311 to straighten the drone. Then, the matching portion on the drone landing gear 210 cooperates with the second inclined guide portion 3211 on the side of the guide support seat 321. The entire process only requires positioning the drone above the drone positioning device 30. Subsequently, the drone can be accurately self-landed without using any sensors for auxiliary positioning, thereby solving the problem of high cost in the prior art of improving the landing accuracy of the drone by setting multiple high-precision sensors.

[0040] Specifically, the tethered drone 20 can drive a pipe and cable mounted on the fire truck 10 to perform aerial firefighting operations. The fire truck 10 is equipped with a water tank or fire extinguisher tank. The pipe and cable's inlet is connected to the water tank or fire extinguisher tank, and the outlet is mounted on the tethered drone 20. Remote control or a pre-set program can be used to fly the tethered drone 20, carrying the pipe and cable, to a designated location for aerial firefighting operations. Simultaneously, the fire truck 10 can also perform coordinated firefighting operations on the ground.

[0041] See also Figure 1 As shown, according to some embodiments of the present invention, a receiving groove 110 is provided on the top of the fire truck 10, and a pipe and cable storage basket 40 is provided in the receiving groove 110; a first guide bracket 311 and a second guide bracket 312 are both provided on the top of the fire truck 10 and located outside the receiving groove 110, and a guide support seat 321 is provided on the top of the pipe and cable storage basket 40. By providing the receiving groove 110 on the top of the fire truck 10, the pipe and cable storage basket 40 for winding pipes and cables can be placed in the receiving groove 110, reducing the space occupied by the pipe and cable storage basket 40. At the same time, by providing the first guide bracket 311 and the second guide bracket 312 on the top of the fire truck 10 and outside the receiving groove 110, there is no need to provide a landing platform for drones on the top of the fire truck 10, so that the body of the fire truck 10 can be used more for arranging water tanks, fire extinguisher tanks, and other necessary components.

[0042] Specifically, in this embodiment, the pipe and cable storage basket 40 is a vertical pipe and cable storage basket. When the tethered drone 20 performs a firefighting task, it can rely on its own power to drive the pipes and cables wound on the side of the vertical pipe and cable storage basket to gradually fall off.

[0043] See also Figures 1 to 3 As shown, according to some embodiments of the present invention, a first guide bracket 311 is located on a first side of the receiving slot 110, and two second guide brackets 312 are spaced apart and arranged on a second side of the receiving slot 110, with the first and second sides of the receiving slot 110 being arranged opposite each other. By arranging the first guide bracket 311 and the two second guide brackets 312 on opposite sides of the receiving slot 110, when the drone lands, the tail of the drone landing gear 210 is guided by the two second guide brackets 312, causing the entire drone to move toward the center of a set position. At the same time, the guide rod 211 provided at the end of the drone landing gear 210, under the action of the guide slot 3111, causes the entire drone to return to its original position. In this process, the stability of the drone's guidance can be ensured, and the drone's positional deviation during guided landing can be prevented.

[0044] Specifically, in this embodiment, the two second guide brackets 312 are respectively located on both sides of the central axis of the guide groove 3111 .

[0045] See also Figure 1 and Figure 2As shown, according to some embodiments of the present invention, the vertical spacing between the top of the duct and cable storage basket 40 and the upper end of the accommodating groove 110 is less than or equal to 10 mm. By controlling the vertical spacing between the top of the duct and cable storage basket 40 and the upper end of the accommodating groove 110 to be less than or equal to 10 mm, a smaller height difference can be achieved between the first guide bracket 311, the second guide bracket 312, and the guide support. After landing, the drone can be stably maintained in its current position under the support of the first guide bracket 311, the second guide bracket 312, and the guide support.

[0046] See also Figure 4 As shown, according to some embodiments of the present invention, the guide support base 321 includes an upper support ring 3212 and a lower support ring 3213, which are coaxially arranged vertically and spaced apart. The diameter of the upper support ring 3212 is smaller than that of the lower support ring 3213. A plurality of first side links 3214 are spaced apart between the upper support ring 3212 and the lower support ring 3213, thereby forming a second inclined guide portion 3211 through the plurality of first side links 3214. By configuring the guide support base 321 as a framework structure consisting of the upper support ring 3212, the lower support ring 3213, and the plurality of side links, the overall weight of the guide support base 321 can be significantly reduced while maintaining its structural strength, thereby facilitating manufacturing and assembly. Furthermore, the plurality of first side links 3214, which are arranged circumferentially and tilted, can form a second inclined guide portion 3211 that mates with the drone landing gear 210.

[0047] Specifically, the lower support ring 3213 is connected to the top of the pipe and cable storage basket 40, and both ends of the plurality of first side connecting rods 3214 can be fixed to the upper support ring 3212 and the lower support ring 3213 respectively by welding.

[0048] See also Figure 5 As shown, according to some embodiments of the present invention, a drone landing gear 210 includes an upper fixing ring 212 and a lower guide ring 213 that are spaced apart and coaxially arranged vertically. The diameter of the upper fixing ring 212 is smaller than that of the lower guide ring 213. A plurality of second side links 214 are spaced apart between the fixing ring and the guide ring, so that the plurality of second side links 214 form a mating portion on the side of the drone landing gear 210. By configuring the drone landing gear 210 as a framework structure consisting of the upper fixing ring 212, the lower guide ring 213, and the plurality of second side links 214, the overall weight of the drone landing gear 210 can be significantly reduced while maintaining its structural strength, thereby reducing the load on the drone and facilitating processing, manufacturing, and assembly.

[0049] Specifically, in this embodiment, one end of the guide rod 211 is connected to the lower guide ring 213, and multiple reinforcing rods are provided between the guide rod 211 and the upper fixing ring 212 to prevent the guide rod 211 from bending or deforming during drone landing. During landing, the lower guide ring 213 first engages with the first inclined guide portions 3121 on the two second guide brackets 312, driving the drone toward the center of the designated landing position. Simultaneously, the guide rod 211, guided by the guide slots 3111 on the first guide brackets 311, returns the drone to its normal position.

[0050] See also Figure 4 As shown, according to some embodiments of the present invention, a plurality of rolling guide mechanisms are provided at intervals along the circumference of the side of the guide support seat 321, and the rolling guide mechanisms are used to cooperate with the second side link 214. By providing the rolling guide mechanisms on the side of the guide support seat 321, when the guide rod 211 is guided by the guide groove 3111 on the first guide bracket 311 to align the drone, the rolling guide mechanisms can convert the sliding friction between the guide support seat 321 and the drone landing gear 210 into rolling friction between the rolling guide mechanisms and the second side link 214, significantly reducing the resistance encountered by the drone when aligning.

[0051] Preferably, in this embodiment, reinforcing connecting rods 3215 are provided between at least some adjacent first side connecting rods 3214, a plurality of third side connecting rods 3216 are provided between the reinforcing connecting rods 3215 and the lower support ring 3213, and the rolling guide mechanism includes a plurality of rolling elements provided on the third side connecting rods 3216. By providing the reinforcing connecting rods 3215 and the third side connecting rods 3216, while ensuring the structural strength of the guide support base 321, the third side connecting rods 3216 can also be used to mount rolling elements (such as balls, rollers, or roller shafts).

[0052] In some embodiments, the rolling guide mechanism may also be a rolling element provided on the first side link 3214 .

[0053] See also Figure 2 and Figure 3 As shown, according to some embodiments of the present invention, the guide groove 3111 includes a guide section 3111a and a limiting section 3111b. The distal end of the guide section 3111a is connected to the distal end of the limiting section 3111b, and the limiting section 3111b is located below the guide section 3111a. By configuring the guide groove 3111 as a connected guide section 3111a and limiting section 3111b, the drone can be centered using the guide groove 3111, and then the limiting section 3111b can be used to circumferentially limit the drone, preventing it from rotating during subsequent positioning or fixing processes, thereby ensuring its stability.

[0054] Specifically, in this embodiment, when the guide rod 211 of the drone landing gear 210 reaches the bottom of the limit section 3111b, the mating portion of the drone landing gear 210 fits perfectly with the second inclined guide portion 3211. At this point, the first guide bracket 311 and the guide support base 321 can simultaneously support the drone.

[0055] See also Figure 3 and Figure 6 As shown, according to some embodiments of the present invention, the first guide bracket 311 includes a first fixing plate 3112 and two first guide members 3113. The first fixing plate 3112 is detachably mounted on the top of the fire truck 10. The first guide member 3113 is formed with a first inclined section and a first straight section, with the distal end of the first inclined section connected to the distal end of the first straight section. The two first guide members 3113 are symmetrically mounted on the first fixing plate 3112, with a guide section 3111a formed between the two first inclined sections and a retaining section 3111b formed between the two first straight sections. By configuring the first guide bracket 311 as a frame structure, the first guide bracket 311 is simplified in structure, requires minimal materials, and is lightweight, making it easier to manufacture and assemble.

[0056] Specifically, the first inclined section and the first straight section can be formed by bending a metal bar / tube / profile, and the ends of the metal bar / tube / profile can be connected to the upper surface of the first fixing plate 3112 by welding or other means. During installation, the first fixing plate 3112 can be fixed to a desired location (such as a drone landing platform) using screws or other components.

[0057] See also Figure 3 and Figure 7 As shown, according to some embodiments of the present invention, the second guide bracket 312 includes a second fixing plate 3122 and a second guide member 3123. The second fixing plate 3122 is detachably mounted on the top of the fire truck 10. The second guide member 3123 is formed with a second inclined section and a second straight section. The end of the second inclined section is connected to the beginning of the second straight section, and the end of the second straight section is connected to the second fixing plate 3122. Similarly, by configuring the second guide bracket 312 as a frame structure, the second guide bracket 312 can be simplified in structure, require less materials, and be lightweight, facilitating fabrication and assembly while maintaining structural stability.

[0058] Specifically, the second inclined segment and the second straight segment can be formed by bending a metal bar / tube / profile, and the ends of the metal bar / tube / profile can be connected to the upper surface of the second fixing plate 3122 by welding or other means. During installation, the second fixing plate 3122 can be fixed to a desired location (such as a drone landing platform) using screws or other components.

[0059] See also Figure 4 As shown, according to some embodiments of the present invention, the guide support seat 321 is provided with a plurality of flexible support members 3217 spaced circumferentially. The flexible support members 3217 are used to support the UAV landing gear 210. Because a linear limiting section 3111b is formed at the bottom of the guide groove 3111, when the guide rod 211 of the UAV landing gear 210 enters the limiting section 3111b, the UAV as a whole will fall a short distance. By providing a plurality of flexible support members 3217 spaced circumferentially on the guide support seat 321, the UAV landing gear 210 can be flexibly supported, preventing the UAV from impacting the guide support seat 321 during landing, which could cause damage to the UAV and / or the guide support seat 321.

[0060] Specifically, the flexible support member 3217 may be a rubber pad or an airbag, etc. Preferably, the present embodiment uses an airbag, and the guide support seat 321 is provided with a plurality of airbag mounting brackets at intervals along the circumference, and the airbags are provided on the airbag mounting brackets.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A tethered drone firefighting system, characterized in that: include: A fire truck, a tethered drone, and a drone positioning device, wherein the drone positioning device is provided on the fire truck; The UAV positioning device includes a coarse positioning component and a fine positioning component, the coarse positioning component includes a first guide bracket and two second guide brackets arranged at intervals along the circumferential direction, the first guide bracket is formed with a guide groove, and the second guide bracket is formed with a first inclined guide portion inclined outwardly, the fine positioning component includes a guide support seat, the guide support seat gradually decreases in diameter from bottom to top to form a second inclined guide portion on the side of the guide support seat, and the first guide bracket and the two second guide brackets are all located on the periphery of the guide support seat; A drone landing gear is provided at the bottom of the tethered drone, and the bottom of the drone landing gear is used to cooperate with the first inclined guide portion. One end of the bottom of the drone landing gear is provided with a guide rod for cooperating with the guide groove, and a cooperating portion for cooperating with the second inclined guide portion is formed on the drone landing gear.

2. The tethered drone firefighting system according to claim 1, characterized in that: The top of the fire truck is provided with a receiving groove, and a pipe and cable storage basket is provided in the receiving groove; The first guide bracket and the second guide bracket are both arranged on the top of the fire truck and located on the periphery of the accommodating groove, and the guide support seat is arranged on the top of the pipe and cable storage basket.

3. The tethered drone firefighting system according to claim 2, characterized in that: The first guide bracket is located on the first side of the accommodating slot, and two second guide brackets are spaced apart and arranged on the second side of the accommodating slot. The first side and the second side of the accommodating slot are arranged opposite to each other.

4. The tethered drone firefighting system according to claim 2, characterized in that: The vertical distance between the top of the pipe and cable storage basket and the upper end of the accommodating groove is less than or equal to 10 mm.

5. The tethered drone firefighting system according to claim 1, characterized in that: The guide support seat comprises an upper support ring and a lower support ring which are coaxial and spaced apart in the vertical direction, wherein the diameter of the upper support ring is smaller than the diameter of the lower support ring; A plurality of first side connecting rods are arranged between the upper support ring and the lower support ring, so that the second inclined guide portion is formed by the plurality of first side connecting rods.

6. The tethered drone firefighting system according to claim 5, characterized in that: The UAV landing gear comprises an upper fixing ring and a lower guide ring which are coaxially arranged in a vertical direction and spaced apart, wherein the diameter of the upper fixing ring is smaller than the diameter of the lower guide ring; A plurality of second side connecting rods are arranged at intervals between the fixing ring and the guide ring, so as to form the matching portion on the side of the UAV landing gear through the plurality of second side connecting rods.

7. The tethered drone firefighting system according to claim 6, characterized in that: A plurality of rolling guide mechanisms are provided on the side of the guide support seat at intervals along the circumferential direction, and the rolling guide mechanisms are used to cooperate with the second side link.

8. The tethered drone firefighting system according to any one of claims 1 to 7, characterized in that: The guide groove includes a guide section and a limiting section. The end of the guide section is connected to the head end of the limiting section, and the limiting section is located below the guide section.

9. The tethered drone firefighting system according to claim 8, characterized in that: The first guide bracket includes a first fixing plate and two first guide members. The first fixing plate is connected to the top of the fire truck. The first guide member is formed with a first inclined section and a first straight section. The end of the first inclined section is connected to the beginning of the first straight section. The two first guide members are symmetrically arranged on the first fixing plate. The guide section is formed between the two first inclined sections, and the limiting section is formed between the two first straight sections. The second guide bracket includes a second fixing plate and a second guide member, the second fixing plate is connected to the top of the fire truck, and a second inclined section and a second straight section are formed on the second guide member. The end of the second inclined section is connected to the head end of the second straight section, and the end of the second straight section is connected to the second fixing plate.

10. The tethered drone firefighting system according to any one of claims 1 to 7, characterized in that: The guide support seat is provided with a plurality of flexible support members spaced apart along the circumferential direction, and the flexible support members are used to support the landing gear of the UAV.

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