Hanging device for throwing fire extinguishing bomb by unmanned aerial vehicle

Abstract

The utility model discloses a suspension device for throwing a fire extinguishing bomb by an unmanned aerial vehicle. The suspension device comprises a bracket, a hanging belt, a releasing mechanism and an adjusting mechanism, the support is connected with the unmanned aerial vehicle, the releasing mechanism and the adjusting mechanism are connected with the support, and the two ends of the sling are connected with the releasing mechanism and the adjusting mechanism respectively. Wherein the releasing mechanism is used for releasing the hanging belt, and the adjusting mechanism comprises a tightening screw rod, a tightening nut and a tightening guide block; a tightening movable groove is formed in the support, the tightening guide block is slidably connected into the tightening movable groove, the bottom of the tightening guide block is connected with the hanging belt, the bottom of the tightening screw is fixed to the tightening guide block, and the top of the tightening screw movably penetrates through the support and is in threaded connection with the tightening nut. Through the design of the adjusting mechanism, the stability of the fire extinguishing bomb in the flying process can be effectively kept, accidental falling caused by vibration or airflow is prevented, and the safety during throwing is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of unmanned aerial vehicles, and particularly relates to a hanging device for an unmanned aerial vehicle to throw fire extinguishing bombs. Background Technique

[0002] The unmanned aerial vehicle throwing fire extinguishing bombs is a new fire fighting means combining unmanned aerial vehicle technology and fire fighting technology. It carries specially designed fire extinguishing bombs and drops these fire extinguishing bombs from the air during a fire to quickly suppress or extinguish the fire source. The unmanned aerial vehicle can quickly reach the fire scene, especially in areas with inconvenient transportation or difficult for personnel to approach, improving the fire fighting response speed. In addition, the unmanned aerial vehicle can precisely control the dropping position, enabling the fire extinguishing bombs to directly hit the fire source, thereby improving the fire fighting effect.

[0003] The hanging device for an unmanned aerial vehicle to throw fire extinguishing bombs is a device specially designed for an unmanned aerial vehicle, used to carry and release fire extinguishing bombs. The main function of this device is to ensure the stable hanging of the fire extinguishing bombs during flight, and at the same time, be able to quickly and accurately throw them when needed. The existing hanging systems for unmanned aerial vehicles to throw fire extinguishing bombs mainly include a bracket, a hanging belt, and a release mechanism. The bracket is connected to the unmanned aerial vehicle, the fire extinguishing bomb is connected to the bracket through the hanging belt, and the release mechanism is used to loosen the hanging belt to release the fire extinguishing bomb. The size of the hanging belt is usually fixed and is designed according to the size of the fire extinguishing bomb. However, after being used for a period of time, the hanging belt will become longer, resulting in the fire extinguishing bomb being prone to shaking during the flight following the unmanned aerial vehicle, which will affect the flight state of the unmanned aerial vehicle and also reduce the stability of the dropping of the unmanned aerial vehicle.

[0004] In the patent with the publication number CN20847011U, a throwing device applied to an unmanned aerial vehicle system for water rescue is disclosed. In this structure of the throwing device, at least two limiting members are installed on the edge of the bracket, and the rescue object can be fixed through the hanging member in the middle and then limited by the limiting members on the edge to prevent it from shaking. However, during use, since the safety belt will be gradually stretched, the rescue object will easily shake at the bottom of the unmanned aerial vehicle. Content of the Utility Model

[0005] The purpose of the utility model is to provide a hanging device for an unmanned aerial vehicle to throw fire extinguishing bombs, so as to solve the following technical problems raised in the background technique:

[0006] In the existing hanging device for an unmanned aerial vehicle to throw fire extinguishing bombs, the size of the hanging belt is usually fixed. After being used for a period of time, the hanging belt will become longer, resulting in the fire extinguishing bomb being prone to shaking during the flight following the unmanned aerial vehicle.

[0007] To solve the above technical problems, the technical solution adopted by the utility model is:

[0008] A suspension device for a fire-extinguishing bomb thrown by a drone, comprising a bracket, a hanging strap, a release mechanism and an adjustment mechanism;

[0009] The bracket is connected to the drone, the release mechanism and the adjustment mechanism are both connected to the bracket, and the two ends of the lanyard are respectively connected to the release mechanism and the adjustment mechanism; wherein the release mechanism is used to loosen the lanyard, and the adjustment mechanism includes a tightening screw, a tightening nut, and a tightening guide block;

[0010] The bracket is provided with a tightening movable groove, the tightening guide block is slidably connected in the tightening movable groove, the bottom of the tightening guide block is connected to the hanging belt, the bottom of the tightening screw is fixed to the tightening guide block, and the top of the tightening screw is movably passed through the bracket and threadedly connected to the tightening nut.

[0011] Furthermore, the bracket includes a fixed bracket and a UAV bracket, wherein the UAV bracket includes two mutually symmetrical frame structures, the fixed bracket is arranged between the two frame structures and connected to the frame structures; the tightening movable groove, the release mechanism and the adjustment mechanism are all arranged on the fixed bracket.

[0012] Furthermore, an arc-shaped assembly groove is provided at the bottom of the fixing bracket.

[0013] Furthermore, auxiliary casting servos are arranged on both sides of the fixed bracket.

[0014] Furthermore, the auxiliary casting servo includes a first cylinder and a first clamping jaw, the first cylinder is connected to the first clamping jaw, and the first cylinder is used to control the first clamping jaw.

[0015] Furthermore, grooves are provided on both sides of the tightening guide block to form an I-shaped structure, and the tightening guide block is movably connected to the fixing bracket through the grooves on both sides.

[0016] Furthermore, a connector is provided at the bottom of the tightening guide block, and a square buckle is connected to one side of the lanyard close to the adjustment mechanism, and the square buckle is movably connected to the connector.

[0017] Furthermore, a compression spring is sleeved on the outer side of the tightening screw, and two ends of the compression spring are respectively connected to the tightening guide block and the bracket.

[0018] Furthermore, a plurality of anti-slip vertical lines are arranged on the outer side of the tightening nut.

[0019] Furthermore, the release mechanism includes a second cylinder and a second clamping jaw, the second cylinder is connected to the second clamping jaw, and the second cylinder is used to control the second clamping jaw.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] The utility model is designed with an adjustment mechanism. The tightening screw and guiding block of the adjustment mechanism are designed such that the tightening degree of the hanging belt can be adjusted according to different types of fire extinguishing bombs, enhancing the adaptability of the device and enabling it to be compatible with different specifications of fire extinguishing bombs. Through the design of the adjustment mechanism, the stability of the fire extinguishing bomb during flight can be effectively maintained, preventing accidental dropping caused by vibration or air flow, and ensuring safety during delivery. During use, the tightening degree of the hanging belt can be adjusted by simply rotating the tightening nut, facilitating quick maintenance and adjustment by users and reducing the complexity of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is the front view of the utility model;

[0023] Figure 2 is Figure 1 the enlarged view of part A of

[0024] Figure 3 is one of the overall structure schematic diagrams of the utility model;

[0025] Figure 4 is the structural schematic diagram of the auxiliary throwing servo of the utility model;

[0026] Figure 5 is the structural schematic diagram of the release structure of the utility model;

[0027] Figure 6 is the other overall structure schematic diagram of the utility model;

[0028] Figure 7 is Figure 6 the enlarged schematic view of part B of

[0029] Figure 8 is the structural schematic diagram of the first jaw of the utility model.

[0030] Reference numerals in the drawings: 1 - bracket, 2 - UAV bracket, 3 - fire extinguishing bomb, 4 - hanging belt, 5 - frame structure, 6 - assembly groove, 7 - tightening nut, 8 - compression spring, 9 - tightening guiding block, 10 - tightening screw, 11 - fixed bracket, 12 - tightening movable groove, 13 - connecting head, 14 - auxiliary throwing servo, 15 - release mechanism, 16 - first cylinder, 17 - first jaw, 18 - second jaw, 19 - second cylinder, 20 - mounting body, 21 - rack, 22 - second connecting rod, 23 - second clamping body, 24 - connecting block, 25 - first clamping body, 26 - first connecting rod, 27 - push rod, 28 - gear. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0032] Embodiment:

[0033] An unmanned aerial vehicle (UAV) throwing fire extinguishing bomb suspension device, as Figure 1 shown, includes a bracket 1, a hanging strap 4, a release mechanism 15 and an adjustment mechanism.

[0034] The bracket 1 is connected to the UAV, as Figure 3 shown, both the release mechanism 15 and the adjustment mechanism are connected to the bracket 1, and both ends of the hanging strap 4 are respectively connected to the release mechanism 15 and the adjustment mechanism; wherein, the release mechanism 15 is used to loosen the hanging strap 4. For example, it can be a remotely controlled jaw. After the UAV reaches the designated area, the jaw loosens, and the hanging strap 4 no longer restricts the fire extinguishing bomb 3, so as to drop the fire extinguishing bomb 3. The adjustment mechanism includes a tightening screw 10, a tightening nut 7 and a tightening guide block 9.

[0035] As Figure 2 shown, a tightening movable groove 12 is provided on the bracket 1, the tightening guide block 9 is slidably connected in the tightening movable groove 12, the bottom of the tightening guide block 9 is connected to the hanging strap 4, the bottom of the tightening screw 10 is fixed to the tightening guide block 9, and the top of the tightening screw 10 movably passes through the bracket 1 and is threadedly connected to the tightening nut 7. The guide block is used to limit the position and movement range of the tightening screw 10. When the tightening nut 7 is rotated, the tightening screw 10 moves axially due to being restricted by the tightening guide block 9, and the tightening screw 10 drives the tightening guide block 9 to move, thereby pulling the hanging strap 4 to tighten.

[0036] Specifically, in use, the bracket 1 is fixedly connected to the UAV, the fire extinguishing bomb 3 is placed at the bottom of the bracket 1, and the fire extinguishing bomb 3 is fixed to the bottom of the bracket 1 through the hanging strap 4. The tightening nut 7 is rotated, and the tightening nut 7 drives the tightening screw 10 and the tightening guide block 9 to move, thereby pulling the hanging strap 4 and fixing the fire extinguishing bomb 3 to the bottom of the bracket 1. After the hanging strap 4 is used for a period of time, the tightening nut 7 is continuously rotated to tighten the hanging strap 4, so as to keep the fire extinguishing bomb 3 stably connected below the bracket 1.

[0037] In a preferred embodiment, as Figure 3As shown, the bracket 1 includes a fixed bracket 11 and a drone bracket 2. Among them, the drone bracket 2 includes two symmetrically arranged frame structures 5. The fixed bracket 11 is arranged between the two frame structures 5 and connected to the frame structures 5. The tightening activity groove 12, the release mechanism 15 and the adjustment mechanism are all arranged on the fixed bracket 11. Among them, both the drone bracket 2 and the fixed bracket 11 are made of carbon fiber material to reduce weight. The drone bracket 2 formed by the two frame structures 5 can be used as a lifting frame for the drone, facilitating the takeoff of the drone and also facilitating the mounting of the fire extinguishing bomb 3. The fixed bracket 11 is detachably connected between drones. The detachable connection design facilitates the replacement of the fixed bracket 11. By replacing different fixed brackets 11, more models of fire extinguishing bombs 3 can be adapted, thereby improving the applicability of the present utility model.

[0038] In a preferred embodiment, as Figure 1 shown, an arc-shaped assembly groove 6 is provided at the bottom of the fixed bracket 11. The arc-shaped assembly groove 6 is used to hold the position of the fire extinguishing bomb 3. When assembling the fire extinguishing bomb 3, the top of the fire extinguishing bomb 3 is stuck in the assembly groove 6. The assembly groove 6 can play a certain restrictive role on the fire extinguishing bomb 3, preventing the fire extinguishing bomb 3 from shaking left and right. At the same time, the assembly groove 6 can also initially position the fire extinguishing bomb 3 when mounting the fire extinguishing bomb 3, facilitating the subsequent use of the hanging belt 4 to stably hang the fire extinguishing bomb 3 at the bottom of the fixed bracket 11.

[0039] In a preferred embodiment, as Figure 3 and Figure 4As shown in the figure, auxiliary throwing servos 14 are provided on both sides of the fixed bracket 11. The auxiliary throwing servos 14 are connected to the fire extinguishing bombs 3. The auxiliary throwing servos 14 can adopt grippers that can be remotely controlled and are connected to the fire extinguishing bombs 3 through the grippers. When throwing, they are opened together with the release mechanism 15. The design of the auxiliary throwing servos 14 can further improve the stability of the fire extinguishing bombs 3. At the same time, the auxiliary throwing servos 14 also serve as a safety device. When the hanging belt 4 breaks, the auxiliary throwing device can prevent the fire extinguishing bombs 3 from falling, ensuring safety. Further optimized, the auxiliary throwing servo 14 includes a first cylinder 16 and a first gripper 17. The first cylinder 16 is connected to the first gripper 17, and the first cylinder 16 is used to control the first gripper 17. Specifically, the first cylinder 16 is used to control the clamping or releasing of the first gripper 17. This embodiment provides a case where the gripper is retracted and extended by the push of a cylinder. The first gripper 17 includes a first clamping body 25 and a second clamping body 23. A connecting rod is provided between the push rod 27 of the cylinder and the first gripper 17. The connecting rod includes a first connecting rod 26 provided on the left side of the push rod 27 and a second connecting rod 22 provided on the right side of the push rod 27. The first connecting rod 26 includes two articulated rod bodies. The two sides of the first connecting rod 26 are respectively articulated to the push rod 27 and the first clamping body 25. The second connecting rod 22 includes two articulated rod bodies. The two sides of the second connecting rod 22 are respectively articulated to the push rod 27 and the second clamping body 23. A connecting block 24 is provided at the front end of the push rod 27. The connecting block 24 is fixed to the push rod 27. The left and right sides of the connecting block 24 are respectively articulated to the first clamping body 25 and the second clamping body 23. In addition, the first cylinder 16 and the first gripper 17 can also adopt a structure of a cylinder cooperating with a gripper disclosed in the patent with the publication number CN220446501U. In another possible design, as Figure 8 shown in the figure, the first cylinder adopts a rotary cylinder. A gear 28 is fixedly connected to the end of the rotating rod of the cylinder. A rack 21 is also slidably connected to one side of the first cylinder. The rack 21 meshes with the gear 28, and the push rod 27 is fixedly connected to the rack 21. The first gripper includes a first clamping body 25, a second clamping body 23 and a mounting body 20. The cylinder is fixedly connected to the mounting body 20. The first gripper 17 includes a first clamping body 25 and a second clamping body 23. A connecting rod is provided between the push rod 27 of the first cylinder and the first gripper 17. The connecting rod includes a first connecting rod 26 provided on the left side of the push rod 27 and a second connecting rod 22 provided on the right side of the push rod 27. The first connecting rod 26 includes two articulated rod bodies. The two sides of the first connecting rod 26 are respectively articulated to the push rod 27 and the first clamping body 25. The second connecting rod 22 includes two articulated rod bodies. The two sides of the second connecting rod 22 are respectively articulated to the push rod 27 and the second clamping body 23. A connecting block 24 is provided at the front end of the push rod 27. The connecting block 24 is fixed to the push rod 27. The left and right sides of the connecting block 24 are respectively articulated to the first clamping body 25 and the second clamping body 23. The first gripper 17 is used to assist in mounting the fire extinguishing bomb 3 to ensure the safety of using the fire extinguishing bomb 3.

[0040] In a preferred embodiment, asFigure 6 as well as Figure 7 As shown, the tightening guide block 9 is provided with grooves on both sides to form an I-shaped structure, and the tightening guide block 9 is movably connected with the fixed bracket 11 through the grooves on both sides. The tightening guide block 9 with an I-shaped structure is convenient for connecting with the fixed bracket 11. The middle sliding rod of the tightening guide block 9 is connected to the tightening movable groove 12. The tightening guide block 9 clamps the side wall of the tightening movable groove 12 through the grooves on both sides, thereby preventing the tightening guide block 9 from rotating. This structure also ensures the stability of the tightening guide block 9, so that the tightening guide block 9 can slide up and down smoothly, so that the hanging belt 4 can be pulled stably, and the fire extinguishing bomb 3 can be conveniently locked at the bottom of the fixed bracket 11.

[0041] In a preferred embodiment, Figure 7 As shown, a connector 13 is provided at the bottom of the tightening guide block 9, and a square buckle is connected to the side of the lanyard 4 close to the adjustment mechanism, and the square buckle is movably connected to the connector 13. The design of the square buckle and the connector 13 facilitates the connection of the lanyard 4 to the tightening guide block 9. Through the design of the square buckle and the connector 13, a certain amount of movable redundancy is provided between the lanyard 4 and the tightening guide block 9, so as to prevent the lanyard 4 from breaking due to being pulled too tight.

[0042] In a preferred embodiment, a compression spring 8 is sleeved on the outer side of the tightening screw 10, and the two ends of the compression spring 8 are respectively connected to the tightening guide block 9 and the bracket 1. When the tightening guide block 9 moves, the compression spring 8 is compressed, and the compression spring 8 generates elastic potential energy so that the tightening screw 10 and the tightening guide block 9 always maintain a downward movement trend, that is, the tightening screw 10 is always tightened, thereby preventing the tightening screw 10 from loosening.

[0043] In a preferred embodiment, if Figure 2 or Figure 7 As shown, a plurality of anti-skid vertical lines are arranged on the outer side of the tightening nut 7. The anti-skid vertical lines are designed to increase the friction coefficient of the outer side of the tightening nut 7, so that the tightening nut 7 can be directly twisted by hand.

[0044] In a preferred embodiment, the release mechanism 15 includes a second cylinder 19 and a second clamp 18, and the second cylinder 19 is connected to the second clamp 18, and the second cylinder 19 is used to control the second clamp 18. Specifically, the second cylinder 19 can control the retraction and extension of the second clamp 18. In addition, the second cylinder 19 and the second clamp 18 can adopt a cylinder-coordinated clamp structure disclosed in publication number CN220446501U, or the specific structure of the first clamp 17 shown in the previous scheme can be adopted. The hanging belt 4 is connected to the second clamp 18, and when the second clamp 18 is opened, one end of the hanging belt 4 is released, so that the fire extinguishing bomb 3 can be put down. When mounting the fire extinguishing bomb 3, the hanging belt 4 is passed around the bottom of the fire extinguishing bomb 3 and connected to the clamp, so as to achieve stable mounting of the fire extinguishing bomb 3.

[0045] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "center", "both ends", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0046] In the present utility model, unless otherwise clearly defined and limited, terms such as "installed", "set", "connected", "fixed", "swivelly connected", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. It can be the communication inside two elements or the interaction relationship between two elements. Unless otherwise clearly limited, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0047] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A suspension device for a drone to drop fire extinguishing bombs, characterized in that: It comprises a bracket (1), a hanging strap (4), a release mechanism (15) and an adjustment mechanism; The bracket (1) is connected to the drone, the release mechanism (15) and the adjustment mechanism are both connected to the bracket (1), and the two ends of the hanging strap (4) are respectively connected to the release mechanism (15) and the adjustment mechanism; wherein the release mechanism (15) is used to loosen the hanging strap (4), and the adjustment mechanism includes a tightening screw (10), a tightening nut (7) and a tightening guide block (9); The bracket (1) is provided with a tightening movable groove (12), the tightening guide block (9) is slidably connected in the tightening movable groove (12), the bottom of the tightening guide block (9) is connected to the hanging belt (4), the bottom of the tightening screw rod (10) is fixed to the tightening guide block (9), and the top of the tightening screw rod (10) is movably inserted into the bracket (1) and threadedly connected to the tightening nut (7).

2. The suspension device for an unmanned aerial vehicle to throw fire extinguishing bombs according to claim 1, characterized in that: The bracket (1) comprises a fixed bracket (11) and an unmanned aerial vehicle bracket (2), wherein the unmanned aerial vehicle bracket (2) comprises two mutually symmetrical frame structures (5), the fixed bracket (11) is arranged between the two frame structures (5) and connected to the frame structures (5); and the tightening movable groove (12), the release mechanism (15) and the adjustment mechanism are all arranged on the fixed bracket (11).

3. The suspension device for an unmanned aerial vehicle to throw a fire extinguishing bomb according to claim 2, wherein: An arc-shaped assembly groove (6) is provided at the bottom of the fixing bracket (11).

4. The suspension device for an unmanned aerial vehicle to throw fire extinguishing bombs according to claim 2, wherein: Auxiliary casting steering gears (14) are arranged on both sides of the fixed bracket (11).

5. The suspension device for an unmanned aerial vehicle to drop fire extinguishing bombs according to claim 4, characterized in that: The auxiliary casting servo (14) comprises a first cylinder (16) and a first clamping claw (17); the first cylinder (16) is connected to the first clamping claw (17); and the first cylinder (16) is used to control the first clamping claw (17).

6. The suspension device for an unmanned aerial vehicle to drop fire extinguishing bombs according to claim 2, wherein: Grooves are arranged on both sides of the tightening guide block (9) to form an I-shaped structure. The tightening guide block (9) is movably connected to the fixing bracket (11) through the grooves on both sides.

7. The suspension device for an unmanned aerial vehicle to throw fire extinguishing bombs according to claim 1, characterized in that: A connector (13) is provided at the bottom of the tightening guide block (9), and a square buckle is connected to the side of the hanging strap (4) close to the adjustment mechanism, and the square buckle is movably connected to the connector (13).

8. The suspension device for an unmanned aerial vehicle to throw fire extinguishing bombs according to claim 1, characterized in that: A compression spring (8) is sleeved on the outer side of the tightening screw rod (10), and two ends of the compression spring (8) are respectively connected to the tightening guide block (9) and the bracket (1).

9. The suspension device for a drone to drop a fire extinguishing bomb according to claim 1, wherein: The outer side of the tightening nut (7) is provided with a plurality of anti-slip vertical lines.

10. The suspension device for an unmanned aerial vehicle to throw fire extinguishing bombs according to claim 1, wherein: The release mechanism (15) comprises a second cylinder (19) and a second clamping jaw (18); the second cylinder (19) is connected to the second clamping jaw (18); and the second cylinder (19) is used to control the second clamping jaw (18).

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