Parachute landing type directional air-drop device for unmanned aerial vehicle

Abstract

The utility model discloses a parachute landing type directional air-drop device for an unmanned aerial vehicle, and belongs to the technical field of unmanned aerial vehicles, the air-drop device comprises an unmanned aerial vehicle body and a thrower body arranged on the unmanned aerial vehicle body in a sleeving mode, a plurality of arm rods are installed on the unmanned aerial vehicle body at equal intervals, spiral blades are arranged on the arm rods, and supporting legs are fixedly installed at the lower ends of the arm rods; a light source is installed at the end, away from the unmanned aerial vehicle body, of the arm rod, a photosensitive sensor is arranged on the arm rod, a fixing mechanism is arranged on the arm rod and comprises a fixing base connected with the photosensitive sensor, fixing rods are symmetrically installed on the fixing base, the arm rod is sleeved with a hook-and-loop fastener rope, and the hook-and-loop fastener rope is connected with the fixing rods in an inserted mode through a sleeve base after being wound around the arm rod. Multi-point rigid connection is formed, the hook-and-loop fastener rope is adopted to be fixed to the arm rod simply and conveniently, the fixing mode is adopted, the connecting strength is large, the photosensitive sensor is rigidly connected with the arm rod through the fixing base, and it is ensured that the posture is stable in the air-drop process.

Description

Technical Field

[0001] This application relates to the field of unmanned aerial vehicle (UAV) technology, specifically a UAV parachute-based directional airdrop device. Background Technology

[0002] With the rapid development of drone technology, drones are being used more and more widely in military, agriculture, logistics, emergency rescue and other fields. Among them, the airdrop function of drones is particularly important, especially in high-risk environments. Using drones for airdrop operations can greatly improve efficiency and reduce risks. Traditional drone airdrop devices usually consist of a dropper and a photosensitive sensor. The photosensitive sensor is used to receive signals from ground light sources, thereby accurately controlling the positioning of the airdrop target.

[0003] In existing technologies, photosensitive sensors are often fixed to the boom of a drone using rubber ropes. The photosensitive sensor is aligned with the light source on the boom in this way to achieve precise execution of airdrop missions. This method of fixing photosensitive sensors has a certain degree of stability under normal use.

[0004] However, existing fixing methods have some problems, especially in the high-frequency vibration environment of drones. The strength of rubber ropes fixing photosensitive sensors is low, which can easily lead to the risk of the photosensitive sensors falling off or losing accurate alignment. When drones are performing flight missions, especially during the airdrop of parachute cargo, they may experience severe vibrations or rapid maneuvers. If the photosensitive sensors fall off or fail, it will directly affect the normal operation of the airdrop device, leading to the failure of the airdrop mission. In severe cases, it may cause damage to ground targets or damage to the drone itself.

[0005] Therefore, this application provides a parachute-based directional airdrop device for unmanned aerial vehicles (UAVs) to solve the above-mentioned problems. Utility Model Content

[0006] This application provides a parachute-type directional airdrop device for drones, which aims to solve the problem mentioned in the background art that the strength of the rubber rope fixing the photosensitive sensor is low under the high-frequency vibration working environment of the drone, which easily leads to the risk of the photosensitive sensor falling off or losing accurate alignment.

[0007] To achieve the above objectives, this application provides the following technical solution: a parachute-type directional airdrop device for unmanned aerial vehicles (UAVs), comprising a UAV body and a thrower body mounted on the UAV body, wherein a plurality of arms are equidistantly installed on the UAV body, each arm is provided with a spiral blade, a support foot is fixedly installed at the lower end of the arm, a light source is installed at the end of the arm away from the UAV body, and a photosensitive sensor is provided on the arm;

[0008] A fixing mechanism is provided on the boom;

[0009] The fixing mechanism includes a fixing base connected to a photosensitive sensor, fixing rods symmetrically mounted on the fixing base, a Velcro strap sleeved on the arm, sleeves equidistantly mounted on the Velcro strap, and through holes for inserting the fixing rods on the sleeves. A power supply box for the thrower is provided on one side of the thrower body, and a motor box is provided on the other side of the thrower body. The Velcro strap is wrapped around the arm and then inserted into the fixing rod through the sleeves to form a multi-point rigid connection. Fixing the arm with Velcro strap is simple and convenient.

[0010] Preferably, a movable block is movably connected to the sleeve, and movable grooves are symmetrically opened inside the sleeve. A limit block is fixedly connected to the lower end of the movable block, and a slider that is slidably connected to the movable groove is arranged on the limit block. Pulling the I-shaped movable block upward causes the limit block to disengage from the fixed rod, thereby realizing one-click disassembly.

[0011] Preferably, a guide rod is fixedly installed at each of the movable slots, the slider is sleeved with the guide rod, and a return spring connected to the slider is sleeved on the outside of the guide rod. The guide rod limits the up and down movement of the limiting block and prevents the return spring from deforming.

[0012] Preferably, the fixed rod has an internal cavity, the tail end of the photosensitive sensor is provided with a wire that passes through the fixed rod, and a plurality of wire loops for sleeved on the wire are installed at equal intervals inside the cavity, with silicone sheaths embedded in the wire loops.

[0013] Preferably, the end of the fixing rod away from the fixing seat is provided with a limiting groove for matching the limiting block.

[0014] Preferably, the fixing rod and the fixing seat are fixedly connected by screws.

[0015] The airdrop device uses Velcro straps wrapped around the boom and then connected to the fixed rod via a sleeve to form a multi-point rigid connection. The Velcro straps are simple and convenient to fix to the boom, and this fixing method provides a strong connection. The photosensitive sensor is rigidly connected to the boom via the fixed seat to ensure the stability of the posture during the airdrop. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a parachute-type directional airdrop device for unmanned aerial vehicles (UAVs).

[0017] Figure 2 This is a structural diagram of the fixed rod;

[0018] Figure 3 This is a schematic diagram of the structure of a Velcro cord;

[0019] Figure 4This is a schematic diagram of the cross-sectional view of the sleeve.

[0020] Figure 5 A schematic diagram of the cross-section of the fixing rod;

[0021] Figure 6 This is a schematic diagram of the structure of the fixed base;

[0022] Figure 7 for Figure 4 Enlarged structural diagram at point A in the middle.

[0023] In the picture:

[0024] 1. Drone body; 2. Arm; 21. Light source; 22. Support leg; 3. Propeller blade; 4. Dropper body; 41. Dropper power supply box; 42. Motor box; 5. Photosensitive sensor; 6. Fixing mechanism; 61. Fixing base; 62. Velcro cord; 621. Sleeve base; 622. Movable block; 623. Through hole; 624. Limiting block; 625. Guide rod; 626. Return spring; 627. Slider; 63. Fixing rod; 631. Wire loop; 632. Limiting groove; 64. Wire. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] This embodiment provides a parachute-based directional airdrop device for unmanned aerial vehicles, such as... Figure 1-7 As shown, the airdrop device includes a drone body 1 and a thrower body 4 mounted on the drone body 1. Several arms 2 are installed at equal intervals on the drone body 1. The arms 2 are equipped with spiral blades 3. The lower end of the arms 2 is fixedly installed with a support leg 22. A light source 21 is installed at the end of the arms 2 away from the drone body 1. A photosensitive sensor 5 is installed on the arms 2.

[0027] A fixing mechanism 6 is provided on the boom 2;

[0028] The fixing mechanism 6 includes a fixing base 61 connected to the photosensitive sensor 5. Fixing rods 63 are symmetrically installed on the fixing base 61. A Velcro cord 62 is sleeved on the arm 2. Sleeves 621 are equidistantly installed on the Velcro cord 62. Through holes 623 for inserting the fixing rods 63 are opened on the sleeves 621. A power supply box 41 for the thrower body 4 is provided on one side, and a motor box 42 is provided on the other side.

[0029] Specifically, the photosensitive sensor 5 and the mounting base 61 adopt an integrated design. The Velcro strap 62 is wrapped around the arm 2 and fixed by Velcro. The specific installation position of the Velcro strap 62 depends on which side of the drone body 1 the power box 41 of the thrower is located on. It is inserted into the through hole 623 opened on the sleeve 621 with the fixing rod 63 connected to the mounting base 61. This allows the photosensitive sensor 5 to be fixed in position by the Velcro strap 62. Compared with the spring rope fixing, this fixing method has a higher connection strength and is more stable. The photosensitive sensor 5 is rigidly connected to the arm 2 through the mounting base 61 to ensure the stability of the attitude during the airdrop. The photosensitive sensor 5 is also aligned with the light source 21.

[0030] A movable block 622 is movably connected to the sleeve 621. The sleeve 621 has symmetrical movable slots inside. A limit block 624 is fixedly connected to the lower end of the movable block 622. A slider 627 that is slidably connected to the movable slot is provided on the limit block 624.

[0031] More specifically, the movable block 622 is I-shaped, mainly to facilitate the staff to pull the movable block 622 upwards so as to separate the fixed rod 63 from the sleeve 621.

[0032] Guide rods 625 are fixedly installed at the movable slots. Slider 627 is sleeved with guide rods 625. A return spring 626 connected to slider 627 is sleeved on the outside of guide rod 625.

[0033] Furthermore, the limiting block 624 at the lower end of the movable block 622 mainly applies pressure to the slider 627 through the return spring 626, so that the limiting block 624 can be inserted into the limiting groove 632 on the lower fixed rod 63. This locking method is used to fix the block and improve the overall connection strength, thereby adapting to the strong vibrations generated during the airdrop of parachute cargo.

[0034] The fixed rod 63 has an internal cavity. The end of the photosensitive sensor 5 is provided with a wire 64 that passes through the fixed rod 63. Several wire loops 631 for fitting the wire 64 are installed at equal intervals inside the cavity.

[0035] It should be noted that the wire 64 is fixed by the wire loop 631 to avoid friction with mechanical parts and reduce electromagnetic interference.

[0036] The end of the fixing rod 63 away from the fixing seat 61 is provided with a limiting groove 632 for matching the limiting block 624.

[0037] It is worth mentioning that the inner wall of the limiting groove 632 is decorated with knurled texture, which provides a certain degree of protection against detachment.

[0038] The fixing rod 63 and the fixing base 61 are fixedly connected by screws.

[0039] In use, the photosensitive sensor 5 and the mounting base 61 are integrated into one unit. The Velcro strap 62 is wrapped around the arm 2 and fixed by Velcro. The specific installation position of the Velcro strap 62 depends on which side of the drone body 1 the power box 41 of the thrower is located on. The fixing rod 63 connected to the mounting base 61 is aligned with the through hole 623 on the sleeve 621 and inserted, so that the photosensitive sensor 5 can be fixed in position by the Velcro strap 62. The ground personnel control the light source 21 to turn on, so that the photosensitive sensor 5 powers the power box 41 of the thrower, causing the mounting rod to retract, and the cargo falls and descends to the predetermined position through its own parachute.

[0040] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. An unmanned aerial vehicle parachute type directional air-drop device, comprising an unmanned aerial vehicle body (1) and a thrower body (4) sleeved on the unmanned aerial vehicle body (1), a plurality of arm rods (2) are equidistantly installed on the unmanned aerial vehicle body (1), a helical blade (3) is arranged on the arm rod (2), a foot (22) is fixedly installed on the lower end of the arm rod (2), a light source (21) is installed on the end of the arm rod (2) away from the unmanned aerial vehicle body (1), and a photosensitive sensor (5) is arranged on the arm rod (2). characterized in that A fixing mechanism (6) is arranged on the arm rod (2). The fixing mechanism (6) comprises a fixing seat (61) connected with the photosensitive sensor (5), a fixing rod (63) is symmetrically installed on the fixing seat (61), a magic tape rope (62) is sleeved on the arm rod (2), a sleeve seat (621) is equidistantly installed on the magic tape rope (62), a through hole (623) for inserting the fixing rod (63) is formed in the sleeve seat (621), a thrower power supply box (41) is arranged on one side of the thrower body (4), and a motor box (42) is arranged on the other side of the thrower body (4).

2. The parachute-based directional aerial delivery apparatus for UAVs of claim 1, wherein: A movable block (622) is movably connected to the sleeve seat (621), a movable groove is symmetrically formed in the sleeve seat (621), a limiting block (624) is fixedly connected to the lower end of the movable block (622), and a sliding block (627) slidably connected with the movable groove is arranged on the limiting block (624).

3. The parachute-based directional aerial delivery apparatus for UAVs of claim 2, wherein: A guide rod (625) is fixedly installed at the movable groove, the sliding block (627) is sleeved with the guide rod (625), and a return spring (626) connected with the sliding block (627) is sleeved on the outside of the guide rod (625).

4. The parachute-based directional aerial delivery apparatus for UAVs of claim 3, wherein: An accommodating cavity is formed in the inside of the fixing rod (63), a lead wire (64) penetrating through the fixing rod (63) is arranged at the tail end of the photosensitive sensor (5), and a plurality of wire sleeve rings (631) for sleeving the lead wire (64) are equidistantly installed in the inside of the accommodating cavity.

5. The parachute-based directional aerial delivery apparatus for UAVs of claim 4, wherein: A limiting groove (632) matched with the limiting block (624) is formed at the end of the fixing rod (63) away from the fixing seat (61).

6. The parachute-based directional aerial delivery apparatus for UAVs of claim 5, wherein: The fixing rod (63) and the fixing seat (61) are fixedly connected through screws.

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