Fire extinguishing bomb mounting and throwing assembly of forest fire control unmanned aerial vehicle

By designing a fire extinguishing bomb mounting and delivery assembly that includes a mounting plate and support components, and utilizing the mechanical self-locking of the slide rail and locking swing plate, as well as the flexible insert driven by an electromagnet, the problems of cumbersome loading and large release impact of UAV fire extinguishing bombs are solved. This enables rapid loading, secure locking, and precise delivery, thereby improving the fire extinguishing efficiency and safety of UAVs.

CN121180451APending Publication Date: 2025-12-23ZHEJIANG JINGGONG PRECISION MFG CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202511487980.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-10-17
Publication Date
2025-12-23

AI Technical Summary

Technical Problem

Existing drone fire extinguishing bomb loading and delivery systems suffer from problems such as cumbersome loading, long unloading time, large release impact, and impact on flight stability and accuracy. They lack reliable mechanisms for rapid loading, secure locking, accurate delivery, and emergency release.

Method used

A fire extinguishing bomb mounting and launching assembly was designed, comprising a mounting plate, a support component, and a mounting component. The support component utilizes a slide rail and a locking swing plate to achieve mechanical self-locking. Combined with a distributed unit that drives flexible inserts with an electromagnet, the fire extinguishing bomb can be quickly loaded, securely locked, and accurately launched, and can be released instantly in an emergency.

Benefits of technology

It enables rapid loading, secure locking, precise delivery, and emergency release of fire extinguishing bombs, improving the flight stability and fire extinguishing efficiency of drones and reducing the risk of crashes.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121180451A_ABST
    Figure CN121180451A_ABST
Patent Text Reader

Abstract

The invention discloses a forest fire-fighting unmanned aerial vehicle fire extinguishing bomb mounting and throwing assembly and belongs to the technical field of unmanned aerial vehicles. A fire extinguishing bomb mounting assembly is designed into an independent module with a top insertion plate, and after insertion and extraction are carried out through a supporting assembly at the bottom of the unmanned aerial vehicle, mechanical self-locking is achieved through automatic droop of a locking swing piece under the action of gravity; the two functions of'mounting 'and'throwing' of the fire extinguishing bomb are highly integrated and modularized structurally and in a control system, the problems of rapidness and safety of overall mounting are solved through a sliding rail and a gravity lock, the problems of accurate and instantaneous throwing of a single fire extinguishing bomb are solved through a distributed unit of an electromagnet and a flexible insertion strip, and the two functions are combined, so that the fire extinguishing bomb can be accurately and instantly thrown. Therefore, an advanced mounting and putting system capable of meeting the requirements of efficient and safe operation of the modern forest fire-fighting unmanned aerial vehicle is formed.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention belongs to the field of unmanned aerial vehicle (UAV) technology, specifically relating to a fire-fighting drone payload delivery component for forest fire fighting. Background Technology

[0002] As a modern firefighting equipment, one of the core functions of forest firefighting drones is to accurately drop fire extinguishing bombs to extinguish initial fires or prevent their spread. However, existing drone fire extinguishing bomb mounting and delivery systems still face numerous technical bottlenecks in practical applications, severely limiting their firefighting efficiency and reliability.

[0003] Traditional mounting methods often use mechanical clips or bolts for fixing, making the loading and unloading of fire extinguishing bombs cumbersome and time-consuming. In emergency situations (such as when a drone needs to make an emergency landing or avoid obstacles), if the payload cannot be jettisoned instantly, the risk of crashing will be greatly increased. Existing devices generally lack a reliable mechanism that can balance secure mounting with instantaneous emergency release.

[0004] Many delivery devices use simple mechanical unlocking, which is rough and generates a large unbalanced torque and impact on the drone platform at the moment of release, causing the drone's attitude to change drastically, thus seriously affecting the accuracy of subsequent delivery and the stability of flight.

[0005] Therefore, there is an urgent need to design a new type of fire extinguishing bomb mounting and delivery assembly. It must be able to quickly load, securely lock, and accurately deliver fire extinguishing bombs, and have the ability to release them instantly in emergencies and good versatility, so as to adapt to the complex and severe forest fire fighting environment and improve the efficiency and safety of UAV firefighting operations. Summary of the Invention

[0006] The present invention mainly addresses the technical problems existing in the prior art by providing a forest fire fighting drone fire extinguishing bomb mounting and delivery component.

[0007] The above-mentioned technical problem of the present invention is mainly solved by the following technical solution: a forest fire fighting drone fire extinguishing projectile mounting and deployment component, including a mounting plate, two sets of support components are provided on the lower surface of the mounting plate, a mounting component is provided between the two sets of support components, the mounting component includes a top insert plate, the mounting component is installed between the two sets of support components through the top insert plate, the mounting plate has four mounting positions, each mounting position includes a vertically penetrating mounting hole, the top of the mounting hole has a recessed mounting groove, the bottom of the recessed mounting groove has multiple sliding tracks, the multiple sliding tracks are evenly distributed in a ring along the axis of the mounting hole, the sliding tracks are L-shaped, the outlet of the bottom end of the sliding track extends horizontally through the inner wall of the mounting hole, and the recessed mounting groove between two adjacent sliding tracks has... A guide hole is provided. The recessed mounting groove contains an upper cover plate and a sliding plate. The upper surface of the sliding plate is provided with a matching magnet. The upper cover plate is provided with a release electromagnet for driving the sliding plate to slide up and down. The upper cover plate is located on the upper side of the sliding plate and fixed to the top of the recessed mounting groove. The sliding plate slides in the recessed mounting groove. The lower surface of the sliding plate is fixed with multiple guide posts and multiple flexible inserts. The guide posts correspond one-to-one with the guide holes, and the flexible inserts correspond one-to-one with the slide rails. The lower end of the flexible insert extends out of the lower side of the slide rail. A spring is provided between the sliding plate and the upper cover plate to press the sliding plate down to the bottom of the recessed mounting groove. When the release electromagnet is energized, it attracts the matching magnet, causing the sliding plate to rise, thereby retracting the ends of the multiple flexible inserts into the slide rails.

[0008] Preferably, the two sets of support components are symmetrically arranged on the lower surface of the mounting plate. Each support component includes a sliding mounting seat fixedly connected to the lower surface of the mounting plate. The sliding mounting seat includes an upper connecting plate and a lower sliding groove. The lower sliding groove is L-shaped and has a vertical mounting surface and a horizontal mounting surface. A mounting groove running through the front and back is opened on the horizontal mounting surface. A slide rail is provided in the mounting groove, and multiple support balls are installed at equal intervals in the slide rail.

[0009] Preferably, a pin is provided on both the front and rear sides of the vertical mounting surface, and a locking swing piece is rotatably connected to each of the two pins. The connection position between the locking swing piece and the pin is in the middle of the locking swing piece, and the outer end can hang down by its own weight.

[0010] Preferably, the mounting assembly supports both sides of the top insert plate through support balls in the slide rail, and the front and rear ends of both sides of the top insert plate are provided with locking positions that cooperate with the locking swing plate.

[0011] Preferably, the slide rail is provided with guide slopes at both the front and rear ends, and locking electromagnets are installed on both the front and rear guide slopes. The lower surface of the locking swing plate is provided with an iron plate that cooperates with the locking electromagnet.

[0012] The beneficial effects of this invention are: the fire extinguishing bomb mounting component is designed as an independent module with a top insert plate, which is inserted and removed through the support component at the bottom of the drone. After insertion, the locking swing plate automatically droops under the action of gravity to achieve mechanical self-locking.

[0013] Multiple independent mounting positions are set on the mounting plate, and each mounting position integrates a miniaturized delivery unit. The core of this unit is to release an electromagnet to drive a sliding plate. The sliding plate supports the fire extinguishing bomb from the side through a flexible insert. Each fire extinguishing bomb is controlled by an independent electromagnet, which can realize single, multiple or sequential delivery. The delivery accuracy is high and the interference with the attitude of the UAV is small. The electromagnetic drive achieves millisecond-level response and the release action is fast and decisive.

[0014] The slide rails and support balls in the support assembly provide a smooth guide for the insertion and removal of the mounting module; while the flexible inserts of the delivery unit provide flexible support for the fire extinguishing bomb.

[0015] The system highly integrates and modularizes the "mounting" and "deployment" functions of fire extinguishing bombs in terms of structure and control system. The "sliding rail + locking swing plate" solves the problems of speed and safety in overall mounting, while the "electromagnet + flexible insert" distributed unit solves the problem of accurate and instantaneous deployment of individual fire extinguishing bombs. Together, they form an advanced mounting and deployment system that can meet the needs of modern forest fire fighting drones for efficient and safe operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention;

[0017] Figure 2 This is a schematic diagram of one structure of the mounting component of the present invention;

[0018] Figure 3 This is a schematic diagram of one structure of the top insert plate of the present invention;

[0019] Figure 4 This is a schematic diagram of a structure of the support component of the present invention;

[0020] Figure 5 This is a schematic diagram of the structure of the upper cover plate and the sliding plate of the present invention;

[0021] Figure 6 This is a schematic diagram of the structure of the iron sheet of the present invention;

[0022] Figure 7 This is a schematic diagram of a structure of the locking swing plate and the locking position of the present invention.

[0023] In the diagram: 1. Mounting plate; 2. Support assembly; 3. Top insert plate; 4. Mounting hole; 5. Recessed mounting groove; 6. Slide rail; 7. Guide hole; 8. Top cover plate; 9. Sliding plate; 10. Matching magnet; 11. Release electromagnet; 12. Guide post; 13. Flexible insert; 14. Spring; 15. Sliding mounting base; 16. Upper connecting plate; 17. Lower slide groove; 18. Vertical mounting surface; 19. Horizontal mounting surface; 20. Mounting groove; 21. Slide rail; 22. Support ball; 23. Pin; 24. Locking swing plate; 25. Locking position; 26. Guide slope; 27. Locking electromagnet; 28. Iron sheet. Detailed Implementation

[0024] The technical solution of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0025] Example: A fire-extinguishing bomb mounting and delivery component for a forest fire-fighting drone, such as... Figures 1-7 As shown, the device includes a mounting plate. The lower surface of the mounting plate has two sets of support components, and a mounting assembly is provided between the two sets of support components. The mounting assembly includes a top insert plate, which is used to mount the mounting assembly between the two sets of support components. The mounting plate has four mounting positions, each including a through mounting hole. The top of the mounting hole has a recessed mounting groove, and the bottom of the recessed mounting groove has multiple sliding tracks. These tracks are evenly distributed in a ring along the axis of the mounting hole. The tracks are L-shaped, and their bottom outlets protrude horizontally through the inner wall of the mounting hole. A guide hole is provided in the recessed mounting groove between two adjacent tracks. An upper cover plate and a sliding track are provided in the recessed mounting groove. The sliding plate has a movable plate, and the upper surface of the sliding plate is provided with a matching magnet. The upper cover plate is provided with a release electromagnet for driving the sliding plate to slide up and down. The upper cover plate is located on the upper side of the sliding plate and fixed to the top of the recessed mounting groove. The sliding plate slides in the recessed mounting groove. The lower surface of the sliding plate is fixed with multiple guide posts and multiple flexible inserts. The guide posts correspond one-to-one with guide holes, and the flexible inserts correspond one-to-one with slide rails. The lower end of the flexible inserts extends out of the lower side of the slide rail. A spring is provided between the sliding plate and the upper cover plate to press the sliding plate down to the bottom of the recessed mounting groove. When the release electromagnet is energized, it attracts the matching magnet, causing the sliding plate to rise, thereby retracting the ends of the multiple flexible inserts into the slide rails.

[0026] Two sets of support components are symmetrically arranged on the lower surface of the mounting plate. Each support component includes a sliding mounting seat fixedly connected to the lower surface of the mounting plate. The sliding mounting seat includes an upper connecting plate and a lower sliding groove. The lower sliding groove is L-shaped and has a vertical mounting surface and a horizontal mounting surface. A mounting groove running through the front and back is opened on the horizontal mounting surface. A slide rail is provided in the mounting groove, and multiple support balls are installed at equal intervals in the slide rail.

[0027] A pin is provided on both the front and rear sides of the vertical mounting surface. A locking swing piece is rotatably connected to each of the two pins. The connection position between the locking swing piece and the pin is in the middle of the locking swing piece, and the outer end can hang down by its own weight.

[0028] The mounting assembly supports both sides of the top plate through support balls in the slide rail. The front and rear ends of both sides of the top plate are provided with locking positions that cooperate with the locking swing plate.

[0029] The slide rail has guide ramps at both ends, and locking electromagnets are installed on both guide ramps. The lower surface of the locking swing plate has an iron plate that cooperates with the locking electromagnet.

[0030] The principle of this invention: The operator aligns the mounting assembly, which integrates the fire extinguishing bomb, with the top insert plate as a guide, with the two support components at the bottom of the drone; the guide ramp at the front end of the slide rail and the internal support ball bearings allow the heavy mounting module to be easily and smoothly pushed in, achieving rapid loading.

[0031] When the mounting module is pushed into position, the inner end of the locking swing plate automatically swings downward under its own weight and locks into the slot on the top plate, achieving automatic locking without electricity and purely mechanical operation. This ensures the absolute reliability of the mounting and prevents it from loosening due to vibration during flight. The weight of the mounting module is supported by the supporting ball bearings, and the locking is guaranteed by the locking swing plate. The entire system is in a stable state of mechanical locking.

[0032] The drone's flight control system is connected to various locking and releasing electromagnets via wiring, maintaining a standby state. This provides the foundation for immediate response in subsequent remote control, precise delivery, and emergency release. When a specific fire extinguishing bomb needs to be delivered, the flight control system sends a command to the releasing electromagnet at the target mounting position. The electromagnet is energized, generating magnetic force that attracts and cooperates with the magnet, overcoming the spring force and pulling the sliding plate upward. The flexible insert on the sliding plate is simultaneously retracted into the slide rail, releasing the constraint on the individual fire extinguishing bomb and achieving precise, fixed-point delivery. This process causes minimal interference with the drone's attitude.

[0033] In an emergency, the flight control system can simultaneously trigger all locking and releasing electromagnets, attracting the iron plate on the locking swing plate and causing it to rotate and unlock; the releasing electromagnets act simultaneously, causing all flexible inserts to retract. This dual unlocking ensures that the entire payload module can be separated from the drone instantly, quickly jettisoning all the load, greatly improving the drone's survival rate and emergency landing safety.

[0034] Finally, it should be noted that the above embodiments are merely representative examples of the present invention. Obviously, the present invention is not limited to the above embodiments and many variations are possible. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention should be considered within the protection scope of the present invention.

Claims

1. A forest firefighting drone fire extinguishing projectile mounting and delivery assembly, comprising a mounting plate, wherein two sets of support components are provided on the lower surface of the mounting plate, and a mounting assembly is provided between the two sets of support components, characterized in that: The mounting assembly includes a top insert plate, which is installed between two sets of support assemblies. The mounting plate has four mounting positions, each including a through-hole. The top of each mounting hole has a recessed mounting groove, and the bottom of the recessed mounting groove has multiple sliding tracks evenly distributed in a ring along the axis of the mounting hole. The tracks are L-shaped, with their bottom outlets horizontally protruding from the inner wall of the mounting hole. A guide hole is provided in the recessed mounting groove between adjacent tracks. An upper cover plate and a sliding plate are provided in the recessed mounting groove. A mating magnet is provided on the upper surface of the sliding plate. The cover plate is equipped with a release electromagnet for driving the sliding plate to slide up and down; the upper cover plate is located on the upper side of the sliding plate and fixed to the top of the recessed mounting groove. The sliding plate slides in the recessed mounting groove. Multiple guide posts and multiple flexible inserts are fixed on the lower surface of the sliding plate. The guide posts correspond one-to-one with the guide holes, and the flexible inserts correspond one-to-one with the slide rails. The lower end of the flexible insert extends out of the outlet on the lower side of the slide rail. A spring is provided between the sliding plate and the upper cover plate to press the sliding plate down to the bottom of the recessed mounting groove. When the release electromagnet is energized, it attracts and engages with the magnet, driving the sliding plate to rise, thereby retracting the ends of the multiple flexible inserts into the slide rails.

2. The forest fire fighting drone pyrotechnic bomb mounting and delivery assembly according to claim 1, characterized in that: Two sets of support components are symmetrically arranged on the lower surface of the mounting plate. Each support component includes a sliding mounting seat fixedly connected to the lower surface of the mounting plate. The sliding mounting seat includes an upper connecting plate and a lower sliding groove. The lower sliding groove is L-shaped and has a vertical mounting surface and a horizontal mounting surface. A mounting groove running through the front and back is opened on the horizontal mounting surface. A slide rail is provided in the mounting groove, and multiple support balls are installed at equal intervals in the slide rail.

3. The forest fire fighting drone pyrotechnic bomb mounting and delivery assembly according to claim 2, characterized in that: A pin is provided on both the front and rear sides of the vertical mounting surface. A locking swing piece is rotatably connected to each of the two pins. The connection position between the locking swing piece and the pin is in the middle of the locking swing piece, and the outer end can hang down by its own weight.

4. The forest fire fighting drone pyrotechnic bomb mounting and delivery assembly according to claim 3, characterized in that: The mounting assembly supports both sides of the top plate through support balls in the slide rail. The front and rear ends of both sides of the top plate are provided with locking positions that cooperate with the locking swing plate.

5. A forest firefighting drone pyrotechnic bomb mounting and delivery assembly according to claim 4, characterized in that: The slide rail has guide ramps at both ends, and locking electromagnets are installed on both guide ramps. The lower surface of the locking swing plate has an iron plate that cooperates with the locking electromagnet.