Emergency lighting drone

Abstract

The present invention discloses an emergency lighting UAV, comprising: a UAV body, a ground control box, and a ground-to-air connection line. The UAV body has a landing gear, and a lighting fixture is installed on the landing gear; one end of the ground-to-air connection line can be unwound or rewound and wound at the ground control box; a wiring port is provided on the UAV body, and the other end of the ground-to-air connection line is plug-in connected to the wiring port; a safety device is provided on the UAV body, and the wire body of the ground-to-air connection line is passed through the safety device and is electrically connected to the wiring port. In the process of normal flight in the air, the emergency lighting UAV of the present invention cooperates with the ground-to-air connection line and the safety device to form a benign buffer, and the UAV body is not easily shaken by external force, thereby ensuring the flight stability of the UAV, and once an accident occurs, the ground-to-air connection line can be quickly detached from the escape port to ensure that the UAV will not fall, effectively balancing the two situations of normal flight and accidents.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicles, in particular to an emergency lighting unmanned aerial vehicle. Background Art

[0002] In the process of disaster relief, using drones to provide lighting is a very good choice. Drones equipped with lighting can be freely lifted to the designated location to illuminate the area in need of lighting.

[0003] Since the lighting fixtures on drones are very powerful and consume a lot of energy, it is difficult to meet the long-term lighting requirements by relying solely on the drone’s own power supply. Figure 1 As shown, in order to meet the long-term lighting requirements of high-power lighting fixtures, electric wires are usually used to transmit electrical energy. The drones in the sky are connected to the power supply equipment on the ground through wires, and the power supply equipment on the ground provides a steady supply of electricity.

[0004] Although the above-mentioned "ground-to-air connection" technical solution solves the technical problem of continuous power supply, it will also bring new serious technical problems. For example, during the "ground-to-air connection" of the drone, if the wire is accidentally pulled by an external object, the wire will transmit the pulling force to the drone. Since the connection between the wire and the drone is fixed, the drone will be subjected to unbalanced force and may crash. If a drone crashes, not only will the drone itself be damaged, but the falling drone will also injure pedestrians or objects on the ground, causing serious production safety accidents.

[0005] To this end, it is necessary to improve the structure of traditional emergency lighting drones. On the one hand, under normal circumstances, it is necessary to ensure the stability of the drone during the "ground-to-air connection" process; on the other hand, once an accident occurs, it is necessary to ensure that the wires are reliably separated from the drone. This is a technical problem that urgently needs to be solved. Summary of the invention

[0006] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide an emergency lighting UAV. On the one hand, under normal circumstances, the stability of the UAV during the "ground-to-air connection" process must be ensured, and on the other hand, once an unexpected situation occurs, the wires must be reliably separated from the UAV.

[0007] The objective of the present invention is achieved through the following technical solutions:

[0008] An emergency lighting UAV, comprising: a UAV body, a ground control box, and a ground-to-air connection line;

[0009] The drone body has a landing gear, and a lighting fixture is installed on the landing gear;

[0010] One end of the ground-to-air connection line can be unwound or rewound at the ground control box;

[0011] The drone body is provided with a wiring port, and the other end of the ground-to-air connection line is plug-in connected to the wiring port;

[0012] The drone body is provided with a safety device, and the ground-to-air connection line is passed through the safety device and is electrically connected to the wiring port.

[0013] In one embodiment, the safety device comprises: a fixing frame, an upper rotating wheel, and a lower rotating wheel;

[0014] The fixing frame is fixed on the drone body, the upper rotating wheel and the lower rotating wheel are rotatably arranged on the fixing frame through torsion springs respectively, and the rotating shafts of the upper rotating wheel and the lower rotating wheel are parallel to the horizontal plane;

[0015] An upper clamping ring groove is formed around the side surface of the upper rotating wheel, and a lower clamping ring groove is formed around the side surface of the lower rotating wheel. A clamping gap is formed between the upper clamping ring groove and the lower clamping ring groove. The line body of the ground-to-air connecting line is passed through the clamping gap. The groove bottom of the upper clamping ring groove and the groove bottom of the lower clamping ring groove clamp the line body of the ground-to-air connecting line.

[0016] An upper escape notch is provided at the edge of the upper clamping ring groove, and a lower escape notch is provided at the edge of the lower clamping ring groove.

[0017] In one embodiment, the upper escape slot is opened at the two side edges of the upper clamping ring groove, and the lower escape slot is opened at the two side edges of the lower clamping ring groove.

[0018] In one embodiment, the curvature of the upper escape slot is 90 degrees, and the curvature of the lower escape slot is 90 degrees.

[0019] In one of the embodiments, one end of the ground-to-air connection line that is plug-in connected to the wiring port is wrapped with a silicone sleeve.

[0020] In one embodiment,

[0021] The clamping gap has an inlet end and an outlet end, and the wiring port is located on one side of the inlet end;

[0022] The wire body of the ground-to-air connection wire enters the clamping gap from the wire inlet end, then passes through the wire outlet end and is plugged into the wiring port.

[0023] In one embodiment, the lighting fixture includes a plurality of LED lamps, and the plurality of LED lamps are detachably mounted on the landing gear.

[0024] In one embodiment, the ground control box is provided with a telescopic lead rod and a winding and unwinding wheel, one end of the telescopic lead rod is provided with a lead ring, the wire body of the ground-to-air connecting wire is passed through the lead ring and connected to the winding and unwinding wheel.

[0025] In one of the embodiments, the ground control box is provided with a motor drivingly connected to the winding and unwinding wheels.

[0026] The emergency lighting UAV of the present invention has a normal flight in the air, and the ground-to-air connection line cooperates with the safety insurance device to form a benign buffer, so that the UAV body is not easily shaken by external forces, thereby ensuring the flight stability of the UAV; and once an accident occurs, the ground-to-air connection line can be quickly detached from the escape port to ensure that the UAV will not fall, thereby effectively balancing the two situations of normal flight and accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 This is a structural diagram of an emergency lighting drone according to an embodiment of the present invention;

[0029] Figure 2 for Figure 1 A perspective view of the drone body shown;

[0030] Figure 3 for Figure 1 A plan view of the drone body shown;

[0031] Figure 4 for Figure 1 The structural diagram of the ground control box shown;

[0032] Figure 5 for Figure 4 A partial view of the ground control box shown;

[0033] Figure 6 A three-dimensional diagram of the ground-to-air connection line being threaded through the safety device;

[0034] Figure 7 A plan view for laying the ground-to-air connection line through the safety device;

[0035] Figure 8 for Figure 3The state diagram of the safety device shown (a);

[0036] Fig. 9 for Figure 3 The state diagram of the safety device shown (II);

[0037] Fig.10 for Figure 3 An exploded view of the safety fuse shown;

[0038] Fig.11 A schematic diagram of the ground-to-air connection line being detached from the safety device to one side;

[0039] Fig.12 A schematic diagram of the safety device for pulling the ground-to-air connection line from below;

[0040] Fig.13 Schematic diagram of the safety device for pulling the ground-to-air connection line from above. DETAILED DESCRIPTION

[0041] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly understood.

[0042] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0044] like Figure 1 As shown, the present invention discloses an emergency lighting UAV 10, comprising: a UAV body 20, a ground control box 30, and a ground-to-air connection line 40.

[0045] like Figure 2As shown, the drone body 20 has a landing gear 21, and a lighting fixture 50 is installed on the landing gear 21. In this embodiment, the lighting fixture 50 includes a plurality of LED lamps 51, and the plurality of LED lamps 51 are detachably arranged on the landing gear 21.

[0046] like Figure 1 As shown, one end of the ground-to-air connection line 40 can be unwound or rewound at the ground control box 30 .

[0047] like Figure 1 As shown, the drone body 20 is provided with a wiring port 22 (such as Figure 6 As shown), the other end of the ground-to-air connection line 40 is connected to the wiring port 22 in a plug-in manner.

[0048] like Figure 3 , Figure 6 and Figure 7 As shown, a safety device 60 is disposed on the drone body 20 , and the wire body of the ground-to-air connection wire 40 is passed through the safety device 60 and is electrically connected to the wiring port 22 .

[0049] like Figure 4 and Figure 5 As shown, in the present invention, a telescopic lead rod 31 and a winding and unwinding wheel 32 are provided on the ground control box 30, a lead ring 31a is provided at one end of the telescopic lead rod 31, and the wire body of the ground-to-air connection wire 40 is passed through the lead ring 31a and connected to the winding and unwinding wheel 32. A motor is provided on the ground control box 30 to drive and connect the winding and unwinding wheel 32.

[0050] Next, the working principle of the emergency lighting drone 10 of the above structure is described:

[0051] Open the cover of the ground control box 30, erect the telescopic lead rod 31, and pass the ground-to-air connection line 40 through the lead ring 31a;

[0052] The ground-to-air connection line 40 is passed through the safety device 60 and electrically connected to the connection port 22;

[0053] The ground control box 30 has its own rechargeable battery and a mains connection line, and can supply power to the drone body 20 and the lighting fixture 50 through the rechargeable battery, or can be connected to the mains through the mains connection line to supply power to the drone body 20 and the lighting fixture 50 through the mains;

[0054] The drone body 20 takes off from the ground, the motor drives the reeling and unreeling wheel 32 to unreel the ground-to-air connection line 40, the drone body 20 slowly rises and reaches a designated position to hover, and the lighting fixture 50 at the landing gear 21 of the drone body 20 emits light, which can realize large-area lighting;

[0055] Under normal circumstances, the pulling force of the ground-to-air connection line 40 is within a normal range, and the pulling force is insufficient to trigger the safety device 60. This situation is a normal controllable state. Under the action of the safety device 60, one end of the ground-to-air connection line 40 is stably plugged into the wiring port 22.

[0056] Once an accident occurs, due to the strong pulling of an external object, the pulling force of the ground-to-air connection line 40 increases sharply and triggers the safety device 60. The safety device 60 releases the wire body of the ground-to-air connection line 40, and the wire body of the ground-to-air connection line 40 is no longer bound by the safety device 60. The strong pulling force will directly act on the ground-to-air connection line 40, so that one end of the ground-to-air connection line 40 is quickly separated from the wiring port 22. At this time, the strong pulling force will not act on the drone body 20, so that the drone body 20 can still maintain stable flight (the drone body 20 has its own battery);

[0057] In this way, the drone body 20 will not fall due to the pulling of the ground-to-air connection line 40, effectively preventing the crash from causing serious production safety accidents;

[0058] It should be noted that when one end of the ground-to-air connection line 40 is detached from the wiring port 22, one end of the ground-to-air connection line 40 will fall from the air. Although the falling of the ground-to-air connection line 40 will inevitably hit some objects on the ground, compared with the crash of the drone body 20, this loss will be much smaller and is a controllable loss.

[0059] Preferably, one end of the ground-to-air connection line 40 plug-in-connected to the wiring port is wrapped with a silicone sleeve. In this way, when the ground-to-air connection line 40 falls from the air, the loss can be minimized.

[0060] Next, the specific structure of the above-mentioned safety device 60 is described:

[0061] like Figure 8 and Fig. 9 As shown, the safety device 60 includes: a fixing frame 100 , an upper rotating wheel 200 , and a lower rotating wheel 300 .

[0062] The fixing frame 100 is fixed on the drone body 20. The upper rotating wheel 200 and the lower rotating wheel 300 are rotatably mounted on the fixing frame 100 through torsion springs (not shown). The rotating shafts of the upper rotating wheel 200 and the lower rotating wheel 300 are parallel to the horizontal plane.

[0063] like Fig.10As shown, an upper clamping ring groove 210 is opened around the side of the upper rotating wheel 200, and a lower clamping ring groove 310 is opened around the side of the lower rotating wheel 300, and a clamping gap 400 is formed between the upper clamping ring groove 210 and the lower clamping ring groove 310, and the line body of the ground-to-air connecting line 40 is passed through the clamping gap 400, and the bottom of the upper clamping ring groove 210 and the bottom of the lower clamping ring groove 310 clamp the line body of the ground-to-air connecting line 40.

[0064] like Fig.10 As shown, an upper escape slot 211 is formed at the edge of the upper clamping ring slot 210 , and a lower escape slot 311 is formed at the edge of the lower clamping ring slot 310 .

[0065] Next, the working principle of the safety device 60 of the above structure is described:

[0066] It should be noted that, in the present invention, the threading method of the ground-to-air connection line 40 is also particular. For example, the clamping gap 400 has an inlet end 410 and an outlet end 420 (such as Fig.10 The connection port 22 is located on one side of the incoming line terminal 410 (as shown in FIG. Figure 6 and Figure 7 As shown in FIG. 4 , the ground-to-air connection line 40 enters the clamping gap 400 from the line entry end 410 (as shown in FIG. 4 ). Figure 7 ), and then pass through the outlet 420 and plug into the wiring port 22 (as shown in FIG. Figure 7 As shown); With this threading method, the wiring port 22 is located on the side of the wire inlet 410. When the wire body of the ground-to-air connection wire 40 is detached from the safety device 60, the end of the ground-to-air connection wire 40 is not easily stuck on the fixing frame 100. After the end of the ground-to-air connection wire 40 is detached from the wiring port 22, it can directly fall from the air without hindrance.

[0067] It should be emphasized that during the normal flight of the drone body 20 in the air, the ground-to-air connection line 40 will inevitably be slightly pulled, thereby causing the line of the ground-to-air connection line 40 to slide slightly between the upper rotating wheel 200 and the lower rotating wheel 300. For this reason, the ground-to-air connection line 40 passing through the outlet end 420 will have sufficient line margin 70 (such as Figure 6 and Figure 7As shown), when the ground-to-air connection line 40 is subjected to normal pulling force, the upper rotating wheel 200 and the lower rotating wheel 300 will rotate slightly and reset under the force of the torsion spring, which forms a benign buffer, and the drone body 20 is not easily shaken by external pulling force, and will not affect the stable hovering of the drone body 20; once an unexpected situation occurs, the pulling force of the ground-to-air connection line 40 increases sharply, and the strong pulling force will quickly pull the ground-to-air connection line 40, and the ground-to-air connection line 40 drives the upper rotating wheel 200 and the lower rotating wheel 300 to rotate in a large range through friction, so that the upper escape slot 211 and the lower escape slot 311 rotate to the specified position, thereby providing an escape hole for the rapid separation of the ground-to-air connection line 40;

[0068] The bottom of the upper clamping ring groove 210 and the bottom of the lower clamping ring groove 310 clamp the line body of the ground-to-air connection line 40, and the upper rotating wheel 200 and the lower rotating wheel 300 are respectively rotatably arranged on the fixing frame 100 through the torsion spring. In this way, when the ground-to-air connection line 40 is subjected to normal pulling force, the upper rotating wheel 200 and the lower rotating wheel 300 will rotate slightly and reset under the force of the torsion spring, which forms a benign buffer, and the drone body 20 is not easy to shake, and will not affect the stable hovering of the drone body 20; and the line body of the ground-to-air connection line 40 will not be laterally separated under the clamping and wrapping of the upper clamping ring groove 210 and the lower clamping ring groove 310;

[0069] Once an accident occurs, the pulling force of the ground-to-air connection line 40 increases sharply due to the strong pulling of an external object. The strong pulling force will quickly pull the ground-to-air connection line 40, and the ground-to-air connection line 40 drives the upper rotating wheel 200 and the lower rotating wheel 300 to rotate in a large range through friction, so that the upper escape slot 211 and the lower escape slot 311 rotate to a specified position, thereby providing an escape hole for the ground-to-air connection line 40 to escape; the line body of the ground-to-air connection line 40 is in contact with the bottom and wall of the upper clamping ring groove 210 and the lower clamping ring groove 310. No matter from which direction the ground-to-air connection line 40 is forced, the upper rotating wheel 200 and the lower rotating wheel 300 will rotate, and the sensitivity is very high;

[0070] It should be noted that under the pull of strong external force, the ground-to-air connection line 40 will deviate in a high probability, such as Fig.10 As shown, in this embodiment, the upper escape slot 211 is opened at the two side edges of the upper clamping ring groove 210, and the lower escape slot 311 is opened at the two side edges of the lower clamping ring groove 310, so that the line body of the ground-to-air connection line 40 either detaches from the left side of the escape slot (such as Fig.11 As shown), or escape from the right side of the escape hatch;

[0071] In this embodiment, the arc of the upper escape slot 211 is 90 degrees, and the arc of the lower escape slot 311 is 90 degrees. It can be seen that the upper escape slot 211 and the lower escape slot 311 are just a gap with a smaller arc in the upper clamping ring groove 210 and the lower clamping ring groove 310 respectively. The ground-to-air connection line 40 drives the upper rotating wheel 200 and the lower rotating wheel 300 to rotate in a large range through friction, so that the upper escape slot 211 and the lower escape slot 311 can be rotated to the specified position, thereby providing an escape hole for the ground-to-air connection line 40 to be detached.

[0072] During the use of the emergency lighting drone 10, various complex working conditions may be encountered. For example, when the drone body 20 is in the air, an object below the drone body 20 may pull the safety device 60 downward through the ground-to-air connection line 40 (e.g. Fig.12 As shown); during the descent of the drone body 20, objects (such as branches) located above the drone body 20 will also pull the safety device 60 upward through the ground-to-air connection line 40 (such as Fig.13 shown).

[0073] It can be seen from this that external objects may pull the safety device 60 from different directions. No matter from which direction the object pulls the safety device 60, the working stability of the safety device 60 needs to be ensured. Once a situation occurs, the line body of the ground-to-air connecting line 40 needs to be quickly and stably detached from the safety device 60.

[0074] In order to solve the various complex working conditions mentioned above, the safety device 60 is specially provided with two wheels, an upper wheel 200 and a lower wheel 300, and the rotating axes of the upper wheel 200 and the lower wheel 300 are parallel to the horizontal plane. In this way, no matter from which direction the object pulls the safety device 60, the line body of the ground-to-air connection line 40 can smoothly bypass on the upper wheel 200 or the lower wheel 300.

[0075] If only a single upper rotating wheel 200 or a single lower rotating wheel 300 is provided, the various complex working conditions mentioned above cannot be solved. If the rotating shafts of the upper rotating wheel 200 and the lower rotating wheel 300 are arranged perpendicular to the horizontal plane, the problem of unsmooth rotation of the rotating wheels will also be caused.

[0076] The emergency lighting UAV 10 of the present invention, during normal flight in the air, the ground-to-air connection line 40 cooperates with the safety insurance device 60 to form a benign buffer, and the UAV body 20 is not easily shaken by external forces, thereby ensuring the flight stability of the UAV. Once an accident occurs, the ground-to-air connection line 40 can be quickly detached from the escape port to ensure that the UAV will not fall, thereby effectively balancing the two situations of normal flight and accidents.

[0077] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An emergency lighting drone, characterized in that: include: UAV body, ground control box, ground-to-air connection cable; The drone body has a landing gear, and a lighting fixture is installed on the landing gear; One end of the ground-to-air connection line can be unwound or rewound at the ground control box; The drone body is provided with a wiring port, and the other end of the ground-to-air connection line is plug-in connected to the wiring port; The drone body is provided with a safety device, and the ground-to-air connection line is passed through the safety device and is electrically connected to the wiring port; The safety insurance device comprises: a fixing frame, an upper rotating wheel and a lower rotating wheel; the fixing frame is fixed on the drone body, the upper rotating wheel and the lower rotating wheel are respectively rotatably arranged on the fixing frame by a torsion spring, and the rotating shafts of the upper rotating wheel and the lower rotating wheel are parallel to the horizontal plane; an upper clamping ring groove is provided around the side surface of the upper rotating wheel, and a lower clamping ring groove is provided around the side surface of the lower rotating wheel, a clamping gap is formed between the upper clamping ring groove and the lower clamping ring groove, the line body of the ground-to-air connecting line is passed through the clamping gap, and the groove bottom of the upper clamping ring groove and the groove bottom of the lower clamping ring groove clamp the line body of the ground-to-air connecting line; an upper escape notch is provided at the edge of the upper clamping ring groove, and a lower escape notch is provided at the edge of the lower clamping ring groove; The clamping gap has an inlet and an outlet, and the wiring port is located on one side of the inlet; the wire body of the ground-to-air connection wire enters the clamping gap from the inlet, then passes through the outlet and is plugged into the wiring port.

2. The emergency lighting drone according to claim 1, characterized in that: The upper escape slot is formed at the two side edges of the upper clamping ring slot, and the lower escape slot is formed at the two side edges of the lower clamping ring slot.

3. The emergency lighting drone according to claim 1, characterized in that: The curvature of the upper escape slot is 90 degrees, and the curvature of the lower escape slot is 90 degrees.

4. The emergency lighting drone according to claim 1, characterized in that: One end of the ground-to-air connection line that is plug-and-play connected to the wiring port is wrapped with a silicone sleeve.

5. The emergency lighting drone according to claim 1, characterized in that: The lighting fixture comprises a plurality of LED lamps, and the plurality of LED lamps are detachably arranged on the landing gear.

6. The emergency lighting drone according to claim 1, characterized in that: The ground control box is provided with a telescopic lead rod and a winding and unwinding wheel, one end of the telescopic lead rod is provided with a lead ring, the wire body of the ground-to-air connection wire is passed through the lead ring and connected to the winding and unwinding wheel.

7. The emergency lighting drone according to claim 6, characterized in that: The ground control box is provided with a motor drivingly connected to the winding and unwinding wheels.

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