High-altitude unmanned aerial vehicle

Abstract

A forced landing mechanism comprises a fixed box, telescopic rods are connected to the two sides of the inner wall of the fixed box in a sliding mode, the top ends of the two telescopic rods extend to the position above the fixed box, and protection feet are further fixedly connected to the top ends of the telescopic rods. The top face of each protection foot is fixedly connected with a buffering pad, magnetic attraction shafts are further fixedly connected to the portions, located on the two sides of the telescopic rods, of the bottom face of each protection foot, the bottom ends of the magnetic attraction shafts are magnetically connected with the top of the fixing box, and inserting holes are further formed in the lower ends of the side walls of the telescopic rods. The bottom end of the telescopic rod is larger than the top end of the telescopic rod in the cross section area, the electric heating wire heats sublimable solids in the unmanned aerial vehicle and inflates the air bag, and meanwhile part of air used for expanding the air bag can eject the telescopic rod upwards, so that the feet are prevented from extending to the position above the propeller, and the propeller is prevented from being directly impacted when the top of the unmanned aerial vehicle body touches the ground.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, specifically to a high-altitude UAV. Background Technology

[0002] High-altitude unmanned aerial vehicles (UAVs) are unmanned aircraft capable of long-duration flights in high-altitude areas. They possess functions such as remote control, autonomous navigation, and data transmission, and are widely used in fields such as meteorological observation, environmental monitoring, and military reconnaissance.

[0003] A Chinese patent discloses a high-altitude drone forced landing assistance device (publication number: CN211281503U). This device uses the principle of a hot air balloon. When the drone is in an abnormal state, the control component triggers the heating wire of the heating device to heat up, causing the sublimable solid to sublimate into a gaseous state, which in turn fills the airbag. The lift provided by the airbag will prevent the drone from falling directly from the high altitude and causing it to be destroyed, reducing the loss to the owner. However, this device still has the following drawbacks:

[0004] When a drone makes an emergency landing and the airbags deploy, it may flip in mid-air and land on its top or be impacted during the landing. In addition, the sublimable solids used to inflate the airbags are not easy to replace, which is not conducive to the reuse of the emergency landing structure. Utility Model Content

[0005] The technical problem to be solved by this utility model is as follows: When a drone makes an emergency landing and the airbags deploy, it may cause the drone to flip in the air, and the top of the fuselage may hit the ground or be impacted during the emergency landing.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A high-altitude unmanned aerial vehicle (UAV) includes a UAV body, and a forced landing mechanism is provided on the side of the UAV body;

[0008] The forced landing mechanism includes a fixed box, with telescopic rods slidably connected to both sides of the inner wall of the fixed box. The top ends of the two telescopic rods extend to the top of the fixed box, and protective feet are fixedly connected to the top ends of the telescopic rods. A buffer pad is fixedly connected to the top surface of each protective foot, and a magnetic shaft is fixedly connected to the bottom surface of each protective foot on both sides of the telescopic rod. The bottom end of the magnetic shaft is magnetically connected to the top of the fixed box.

[0009] Each of the telescopic rods has an insertion hole at the lower end of its side wall;

[0010] The telescopic rod has a larger cross-sectional area at the bottom than at the top.

[0011] As a further embodiment of this utility model: an installation frame is fixedly installed in the middle of the inner wall of the fixing box, an airbag is fixedly connected to the top inner wall of the installation frame, the lower end of the airbag is folded and stored inside the installation frame, and a flexible encapsulation plate is fixedly connected to the bottom surface of the installation frame.

[0012] As a further embodiment of this utility model: exhaust chambers are provided on both sides of the inner wall of the mounting frame, the lower end of each exhaust chamber extends into the interior of the fixing box, and the end of the exhaust chamber is located directly below the telescopic rod.

[0013] As a further embodiment of this utility model: a pin is slidably connected to the inner wall of the fixing box and near the upper end of each telescopic rod. One end of the pin abuts against the surface of the telescopic rod, and the other end of the pin is fixedly connected to a spring. The side of the spring is also fixedly connected to the inner wall of the fixing box.

[0014] As a further embodiment of this utility model: a shelf is slidably connected to the inner wall of the fixed box and above the mounting frame; an electric heating wire is fixedly installed on the inner wall of the fixed box and above the middle of the shelf; screws are threadedly connected to both sides of the front end of the shelf; and the screws are threadedly connected to the outer wall of the fixed box.

[0015] As a further embodiment of this utility model: an intercepting net is fixedly installed in the middle of the shelf, and a sublimable solid is movably supported on the top of the intercepting net. The interior of the shelf is connected to the interior of the airbag, and the upper end of the airbag is connected to both exhaust chambers.

[0016] As a further embodiment of this utility model: the main body of the drone includes a fuselage, and wings are fixedly connected to all four sides of the side walls of the fuselage. A propeller is rotatably connected to the top of the tip of each wing, and the sides of each wing are evenly fixedly connected to a fixed box.

[0017] The beneficial effects of this utility model are:

[0018] (1) The present invention provides a forced landing mechanism on each wing side of the drone body. When the drone body is in a state of emergency, the heating wire heats the solid inside the drone and inflates the airbag. At the same time, some of the gas used to inflate the airbag can push the telescopic rod upward, thereby extending the protective foot to the top of the propeller and preventing the propeller from being directly impacted when the top of the drone body lands.

[0019] (2) The device supports the sublimable solid through a shelf. When the sublimable solid is consumed, the shelf can be removed and the sublimable solid can be replaced, which facilitates the reuse of the forced landing mechanism. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the external structure of the fixing box in this utility model;

[0023] Figure 3 This is a schematic diagram of the overall structure of the forced landing mechanism in this utility model;

[0024] Figure 4 This is a schematic diagram of the internal structure of the fixing box in this utility model;

[0025] Figure 5 This is a cross-sectional structural diagram of the telescopic rod in this utility model.

[0026] In the diagram: 1. Main body of the drone; 101. Fuselage; 102. Wing; 103. Propeller; 2. Forced landing mechanism; 201. Fixing box; 202. Mounting frame; 203. Airbag; 204. Flexible encapsulation plate; 205. Exhaust chamber; 206. Heating wire; 207. Shelf; 208. Sublimable solid; 209. Interception net; 210. Screw; 211. Spring; 212. Pin; 213. Telescopic rod; 214. Protective feet; 215. Buffer pad; 216. Magnetic shaft; 217. Socket. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0028] like Figure 1-5 As shown, a high-altitude unmanned aerial vehicle (UAV) includes a UAV body 1, with a forced landing mechanism 2 installed on the side of the UAV body 1. The forced landing mechanism 2 includes a fixed box 201, with telescopic rods 213 slidably connected to both sides of the inner wall of the fixed box 201. The top ends of the two telescopic rods 213 extend above the fixed box 201, and protective feet 214 are fixedly connected to the top ends of the telescopic rods 213. A buffer pad 215 is fixedly connected to the top surface of each protective foot 214, and a magnetic shaft 216 is fixedly connected to the bottom surface of each protective foot 214 on both sides of the telescopic rods 213. The bottom end of the magnetic shaft 216 is magnetically connected to the top of the fixed box 201. An insertion hole 217 is also provided at the lower end of the side wall of each telescopic rod 213. The telescopic rod 213 has a larger cross-sectional area at the bottom than at the top. Figure 4 As shown, a patch is embedded in the part of the top surface of the fixing box 201 that contacts the magnetic shaft 216;

[0029] A mounting frame 202 is fixedly installed in the middle of the inner wall of the fixing box 201. An airbag 203 is fixedly connected to the top inner wall of the mounting frame 202. The lower end of the airbag 203 is folded and stored inside the mounting frame 202. A flexible encapsulation plate 204 is also fixedly connected to the bottom surface of the mounting frame 202. Figure 4 The flexible encapsulation board 204 shown can be made of pearl cotton material;

[0030] Both sides of the inner wall of the mounting frame 202 are provided with exhaust chambers 205. The lower end of each exhaust chamber 205 extends into the interior of the fixing box 201, and the end of the exhaust chamber 205 is located directly below the telescopic rod 213. A pin 212 is slidably connected to the inner wall of the fixing box 201 near the upper end of each telescopic rod 213. One end of the pin 212 abuts against the surface of the telescopic rod 213, and the other end of the pin 212 is fixedly connected to a spring 211. The side of the spring 211 is also fixedly connected to the inner wall of the fixing box 201. Figure 4 As shown, the spring 211 pushes the pin 212 against the surface of the telescopic rod 213, and the outer wall of the pin 212 extends to the outside of the fixing box 201;

[0031] A shelf 207 is slidably connected to the inner wall of the fixed box 201 and above the mounting frame 202. A heating wire 206 is fixedly installed on the inner wall of the fixed box 201 and above the middle of the shelf 207. Screws 210 are threaded through both sides of the front end of the shelf 207, and the screws 210 are threaded to the outer wall of the fixed box 201. A blocking net 209 is fixedly installed in the middle of the shelf 207. A sublimable solid 208 is movably supported on the top of the blocking net 209. The interior of the shelf 207 is connected to the interior of the airbag 203, and the upper end of the airbag 203 is connected to both exhaust chambers 205. Figure 4 As shown, the surface of the interceptor net 209 is provided with openings for gas to pass through;

[0032] The main body 1 of the drone includes a fuselage 101. Wings 102 are fixedly connected to all four sides of the fuselage 101. A propeller 103 is rotatably connected to the top of the tip of each wing 102. Boxes 201 are evenly and fixedly connected to the sides of each wing 102. Figures 1-2 As shown, when the telescopic rod 213 raises the protective foot 214 to the top, the protective foot 214 is located above the propeller 103.

[0033] The working principle of this utility model:

[0034] When an emergency occurs during the flight of the main body 1 of the drone, the heating wire 206 is energized and heats the sublimable solid 208. The nitrogen gas generated by sublimation fills the airbag 203, thereby causing the airbag 203 to expand and break through the flexible encapsulation plate 204, thus reducing the falling speed of the main body 1 of the drone.

[0035] Secondly, gas enters below the telescopic rod 213 through the exhaust chamber 205, increasing the air pressure below the telescopic rod 213 and pushing it upward, thereby lifting the protective foot 214 above the propeller 103. When the insertion hole 217 on the side of the telescopic rod 213 aligns with the pin 212, the spring 211 pushes the pin 212 into the insertion hole 217, thereby locking the telescopic rod 213 and keeping it in the extended state. The buffer pad 215 on the top of the protective foot 214 provides impact protection to the top of the drone body 1.

[0036] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A high-altitude unmanned aerial vehicle, comprising an unmanned aerial vehicle body (1), the side of the unmanned aerial vehicle body (1) is provided with a forced landing mechanism (2); characterized in that The forced landing mechanism (2) comprises a fixed box (201), the inner wall of the fixed box (201) is slidably connected with telescopic rods (213) on both sides, the top ends of the two telescopic rods (213) extend above the fixed box (201), and the top ends of the telescopic rods (213) are also fixedly connected with protective feet (214), the top surface of each protective foot (214) is fixedly connected with a buffer pad (215), and the bottom surface of each protective foot (214) and located on both sides of the telescopic rod (213) is also fixedly connected with a magnetic shaft (216), and the bottom end of the magnetic shaft (216) is magnetically connected with the top of the fixed box (201). Wherein, the side wall lower end of each telescopic rod (213) is also provided with a insertion hole (217); Wherein, the telescopic rod (213) is larger at the bottom than at the top in cross-sectional area.

2. The high-altitude unmanned aerial vehicle according to claim 1, wherein, The inner wall of the fixed box (201) is fixedly installed with a mounting frame (202), the top inner wall of the mounting frame (202) is fixedly connected with an air bag (203), the lower end of the air bag (203) is folded and stored inside the mounting frame (202), and the bottom surface of the mounting frame (202) is also fixedly connected with a flexible packaging plate (204).

3. The high-altitude unmanned aerial vehicle according to claim 2, wherein, The inner wall of the mounting frame (202) is provided with an exhaust cavity (205) on both sides, the lower end of each exhaust cavity (205) extends into the fixed box (201), and the tail end of the exhaust cavity (205) is located directly below the telescopic rod (213).

4. The high-altitude unmanned aerial vehicle according to claim 3, wherein, The inner wall of the fixed box (201) and close to the upper end of each telescopic rod (213) is slidably connected with a latch (212), one end of the latch (212) abuts against the surface of the telescopic rod (213), the other end of the latch (212) is fixedly connected with a spring (211), and the side of the spring (211) is also fixedly connected with the inner wall of the fixed box (201).

5. The high-altitude unmanned aerial vehicle according to claim 4, wherein, The inner wall of the fixed box (201) and above the mounting frame (202) is slidably connected with a shelf (207), the inner wall of the fixed box (201) and above the middle of the shelf (207) is fixedly installed with an electric heating wire (206), the front end of the shelf (207) is connected with a screw (210) on both sides, and the screw (210) is threadedly connected with the outer wall of the fixed box (201).

6. The high-altitude unmanned aerial vehicle according to claim 5, wherein, The middle of the shelf (207) is fixedly installed with an interception net (209), the top of the interception net (209) is movably supported with a sublimable solid (208), the inside of the shelf (207) is connected with the inside of the air bag (203), and the upper end of the air bag (203) is connected with the two exhaust cavities (205).

7. The high-altitude unmanned aerial vehicle of claim 1, wherein, The unmanned aerial vehicle body (1) comprises a fuselage (101), the side wall of the fuselage (101) is fixedly connected with wings (102) around, the top of the end of each wing (102) is rotatably connected with a propeller (103), and the side of each wing (102) is fixedly connected with the fixed box (201).

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