Horizontal fire extinguishing bomb suspension device special for unmanned aerial vehicle

By using a three-axis linkage servo motor and a modular throwing mechanism, the problems of inaccurate deployment and poor versatility of the drone fire extinguishing bomb suspension device have been solved, achieving precise control and efficient fire extinguishing, and adapting to the needs of various fire extinguishing bombs.

CN223934957UActive Publication Date: 2026-02-24DEWEAVER INTELLIGENT EQUIP GRP CO LTD
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Patent Information

Application Number
CN202520798956.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-25
Publication Date
2026-02-24
Estimated Expiration
2035-04-25

AI Technical Summary

Technical Problem

Existing drone-mounted fire extinguishing bomb suspension devices suffer from inaccurate timing control, delayed response, or accidental triggering, and lack a reliable travel feedback mechanism, resulting in poor fire extinguishing effect, poor versatility, and difficulty in adapting to the needs of different types of fire extinguishing bombs.

Method used

The device employs a three-axis linkage mechanism with a modular throwing mechanism to achieve precise control over the timing and location of fire extinguishing bomb deployment. It is compatible with different specifications of fire extinguishing bombs, including various designs such as sliding, lug, and belt throwing, enhancing the device's versatility and mission adaptability.

Benefits of technology

It enables precise delivery of fire extinguishing bombs, improves fire extinguishing efficiency and flexibility, reduces equipment costs, adapts to the needs of different types of fire extinguishing bombs, and enhances the rapid response capability of the drone fire extinguishing system.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of fire fighting, and particularly discloses a horizontal fire extinguishing bomb suspension device special for an unmanned aerial vehicle. Comprising a mounting mechanism and a throwing mechanism. The mounting mechanism is used for being connected with the unmanned aerial vehicle and fixing the fire extinguishing bomb, and the throwing mechanism is arranged at the bottom of the mounting mechanism and used for controlling release of the fire extinguishing bomb. A steering engine is arranged at the top of the mounting mechanism, and precise throwing is achieved through linkage of a third shaft of the steering engine and the throwing mechanism. In a preferable scheme, the throwing mechanism can adopt a sliding type, a hanging lug type or a belt type structure to adapt to different fire extinguishing bomb types; the steering engine is equipped with a displacement sensor to monitor the stroke in real time to improve the control precision. The device is compact in structure and flexible to install, supports modular expansion, solves the problems that a traditional fire extinguishing bomb throwing device is insufficient in precision, delayed in response and poor in adaptability, and remarkably improves the fire extinguishing efficiency and reliability of the unmanned aerial vehicle. The system is suitable for various scenes such as forest fire control and urban rescue.
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Description

Technical Field

[0001] This utility model relates to the field of fire protection technology, and in particular to a horizontal fire extinguishing bomb suspension device for drones. Background Technology

[0002] In the field of drone-based firefighting, the precise delivery of fire extinguishing grenades is crucial to ensuring fire suppression efficiency. Traditional fire extinguishing grenades suspension devices often employ simple mechanical release structures or electronic triggering mechanisms, which suffer from problems such as inaccurate timing control, response delays, or false triggering. For example, some devices rely on a single signal trigger, making them susceptible to environmental interference; others use fixed-delay delivery, which is difficult to adapt to the dynamic needs of fire scenes. Furthermore, existing technologies often lack reliable travel feedback mechanisms, resulting in insufficient stability and consistency in delivery actions, thus affecting fire suppression effectiveness.

[0003] Traditional mechanical release mechanisms often employ electromagnet triggering or simple mechanical latch designs. While these structures are simple and reliable, they have significant functional drawbacks: First, the timing of deployment lacks precision, making it difficult to achieve millisecond-level accurate triggering, resulting in large deviations in the landing point of the fire extinguishing projectile. Second, they lack an effective status monitoring mechanism, failing to provide real-time feedback on the working status of the release mechanism, posing a risk of false triggering or jamming. While electronic triggering devices offer improved control precision, they are susceptible to interference in complex electromagnetic environments and require high power supply stability, making reliability difficult to guarantee during field operations. Existing devices also lack versatility, often only compatible with specific types of fire extinguishing projectiles. When changing the type of fire extinguishing projectile is necessary, the entire suspension system must be redesigned and reinstalled, severely impacting the rapid response capability of the fire extinguishing system.

[0004] The patent "A Fire Extinguishing Bullet Mounting Device for Firefighting Drones" (application number CN202121527119.6, hereinafter referred to as Prior Art 1) discloses a fire extinguishing bullet mounting device. Prior Art 1 provides a drone mounting mechanism that can flexibly adjust the position and angle of the mounted items through a mounting adjustment mechanism and a camera adjustment structure, achieving rapid adaptation to different equipment and improving mounting flexibility. It also optimizes the application range of cameras and other equipment, reduces drone resource waste, and enhances the drone's multi-functional application capabilities. However, Prior Art 1 can only change the position and angle of the fire extinguishing bullet, and cannot universally mount multiple types of fire extinguishing bullets. Furthermore, it lacks a precise release control mechanism. In complex environments, especially under conditions of strong electromagnetic interference or unstable power supply, the reliability of Prior Art 1's mounting and release functions is insufficient. Utility Model Content

[0005] In view of this, this utility model provides a dedicated horizontal fire extinguishing bomb suspension device for drones, which solves the problems of inaccurate timing control, response delay, or false triggering of drone fire extinguishing bombs.

[0006] This utility model embodiment provides a horizontal fire extinguishing bomb suspension device for drones, including: a mounting mechanism for connecting to the drone and mounting fire extinguishing bombs; and a throwing mechanism fixedly disposed at the bottom of the mounting mechanism for fixing or releasing the fire extinguishing bombs. The top of the mounting mechanism is further provided with a servo motor for controlling the timing of the release of the fire extinguishing bombs by the throwing mechanism. The servo motor includes a first axis, a second axis, and a third axis. The servo motor controls the retraction relationship between the third axis and the throwing mechanism to achieve the timing of the fire extinguishing bomb release.

[0007] Preferably, it further includes a first connecting frame and a second connecting frame, the first connecting frame and the second connecting frame being symmetrically arranged; the mounting mechanism is disposed between the first connecting frame and the second connecting frame and is detachably connected to the first connecting frame and the second connecting frame.

[0008] Preferably, the mounting mechanism is a mounting plate, and the servo motor and the throwing mechanism are respectively disposed on the top and bottom of the mounting plate.

[0009] Preferably, the mounting mechanism is a mounting frame, which is disposed between the first connecting frame and the second connecting frame, and there is at least one mounting frame; the mounting frame is provided with an installation space to accommodate the fire extinguishing bomb.

[0010] Preferably, the throwing mechanism is a sliding throwing mechanism; the sliding throwing mechanism is disposed at the bottom of the mounting plate, including a slide rail and a first slider and a second slider that can slide based on the slide rail; both the first slider and the second slider are used to hang the fire extinguishing bomb; and the first slider is provided with a limiting hole, and the third shaft extends into the limiting hole. When the third shaft retracts and leaves the limiting hole, the first slider can move freely on the slide rail.

[0011] Preferably, the throwing mechanism is a hook-type throwing mechanism; the fire extinguishing bomb is hung on the hook-type throwing mechanism; the third shaft is connected to the hook-type throwing mechanism, and when the third shaft extends and pushes the hook of the hook-type throwing mechanism, the hook opens and the fire extinguishing bomb is thrown out.

[0012] Preferably, the throwing mechanism is a pair of sliding throwing mechanisms arranged at intervals.

[0013] Preferably, the throwing mechanism is a belt throwing mechanism; the belt throwing mechanism includes an installation part and a locking part, and a limiting belt disposed between the installation part and the locking part, one end of the belt is connected to the installation part, and the other end is provided with a locking head that locks into the locking part; the installation part and the locking part are respectively disposed at the two ends of the mounting frame.

[0014] Preferably, the servo motor includes a mounting bracket and a driver mounted on the mounting bracket; the first shaft is fixedly connected to the output shaft of the driver, and the two ends of the second shaft are respectively hinged to the first shaft and the third shaft; a displacement sensor is also provided on one side of the first shaft on the mounting bracket for detecting the stroke of the first shaft.

[0015] Preferably, the mounting bracket is further provided with a guide block, and the third shaft is connected to the throwing mechanism via the guide block to achieve a retractable relationship.

[0016] The horizontal fire extinguishing bomb suspension device for drones provided by this utility model has the following beneficial effects:

[0017] In this invention, the three-axis linkage mechanism of the servo motor enables precise control of the throwing action, accurately controlling the timing and position of the release, and ensuring that the fire extinguishing bomb is released accurately at the predetermined position and time. At the same time, the modular throwing mechanism design can be quickly adapted to different specifications of fire extinguishing bombs, greatly improving the versatility and mission adaptability of the device. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments of this utility model will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, and these are all within the protection scope of this utility model.

[0019] Figure 1 This is a schematic diagram of the structure in Example 1;

[0020] Figure 2 yes Figure 1 A schematic diagram of a partial structure;

[0021] Figure 3 This is a schematic diagram of the structure in Example 3;

[0022] Figure 4 This is a schematic diagram of the structure in Example 5;

[0023] Figure 5 This is a schematic diagram of the structure in Example 2;

[0024] Figure 6 This is a schematic diagram of the belt throwing mechanism in Example 4;

[0025] Parts and their numbers in the diagram:

[0026] 110 - Mounting plate;

[0027] 120-mount rack;

[0028] 210-Sliding throwing mechanism, 211-Slide rail, 212-First slider, 213-Limiting hole, 214-Second slider;

[0029] 220 - Throwing mechanism with ear loop; 221 - Ear loop;

[0030] 230-Belt throwing mechanism, 231-Installation part, 232-Clamping part, 233-Limit belt, 234-Clamping head;

[0031] 300-Servo motor, 310-Mounting bracket, 320-Driver, 331-First axis, 332-Second axis, 333-Third axis, 334-Displacement sensor, 335-Guide block;

[0032] 410 - First connecting frame, 420 - Second connecting frame;

[0033] 500-fire extinguishing bomb. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. It should be noted that, in this document, relational terms such as "first" and "second" are merely used to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. In the description of this utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. Unless otherwise specified, embodiments of the present invention and the various features thereof can be combined with each other, all within the protection scope of the present invention.

[0035] Example 1

[0036] Please see Figure 1This utility model provides a dedicated horizontal fire extinguishing bomb suspension device for drones. In actual fire extinguishing scenarios, there are various different fire conditions, and different fire extinguishing measures are required depending on the fire condition. Therefore, different fire extinguishing bombs are needed in drone fire extinguishing. However, different fire extinguishing bombs have different structures, and the required installation structures are also different. In the traditional way, different types of drones are often used to transport different fire extinguishing bombs. This not only increases the cost of fire extinguishing equipment, but also greatly reduces the fire extinguishing efficiency in practical applications due to the frequent replacement of different types of drones.

[0037] To address this issue, this invention proposes a dedicated horizontal fire extinguishing bomb suspension device for drones, which adapts to the needs of different fire extinguishing bombs by setting a detachable suspension device.

[0038] In this embodiment, the drone-specific horizontal fire extinguishing projectile suspension device is used to install horizontal material projectiles. Horizontal material projectiles are airdrop equipment used in disaster relief, deployed by helicopters or fixed-wing aircraft, utilizing parachutes or cushioning devices to ensure the smooth landing of supplies (such as medicine, food, and tools) in the disaster area. Their core function is to solve the problem of material transportation when transportation is disrupted, rather than fire extinguishing. In terms of effectiveness, it can achieve long-range, precise delivery, but it needs to consider factors such as weather and terrain, and it does not have fire extinguishing capabilities.

[0039] Please see Figure 1 In this embodiment, the UAV-specific horizontal fire extinguishing bomb suspension device includes a mounting mechanism and a throwing mechanism. The mounting mechanism is a mounting plate 110; the throwing mechanism is a sliding throwing mechanism 210. The mounting mechanism is used to connect to the UAV and mount the fire extinguishing bomb. The fire extinguishing bomb is mounted on the UAV mounting mechanism via the sliding throwing mechanism 210. The throwing mechanism fixes or releases the fire extinguishing bomb. The UAV-specific horizontal fire extinguishing bomb suspension device also includes a servo motor 300 for controlling the timing of the throwing mechanism releasing the fire extinguishing bomb. The servo motor 300 and the throwing mechanism are respectively located at the top and bottom of the mounting plate 110.

[0040] In use, the fire extinguishing bomb is first mounted on the sliding throwing mechanism 210, and then connected to the mounting mechanism via a drone to propel the fire extinguishing bomb to the fire scene. Upon reaching the designated location, the throwing mechanism is controlled by a servo motor 300, causing the sliding throwing mechanism 210 to release the fire extinguishing bomb, achieving rapid and accurate fire extinguishing. This design not only simplifies the mounting and releasing process of the fire extinguishing bomb but also greatly improves fire extinguishing efficiency and flexibility. Furthermore, since both the mounting and throwing mechanisms are detachable, different types of fire extinguishing bombs can be easily adapted, avoiding the need for frequent drone replacements and reducing the cost of fire extinguishing equipment.

[0041] Further, please see Figure 1 and Figure 2 The sliding throwing mechanism 210 is disposed at the bottom of the mounting plate 110, including a slide rail 211 and a first slider 212 and a second slider 213 that can slide based on the slide rail 211; the first slider 212 and the second slider 213 are both used to hang the fire extinguishing bomb; and the first slider 212 is provided with a limiting hole 213, and the third shaft 333 extends into the limiting hole 213. When the third shaft 333 retracts and leaves the limiting hole 213, the first slider 212 can move freely on the slide rail 211.

[0042] In use, the fire extinguishing bomb is mounted on the slide rail 211 via the first slider 212 and the second slider 213. When the drone flies to the designated location, the servo motor 300 controls the drone to tilt towards the preset target position at a certain angle, or to tilt the slide rail 211, allowing the first slider 212 to slide freely on the slide rail 211, thereby moving the fire extinguishing bomb mounted on it along the direction of the slide rail 211. If the second slider 213 also slides synchronously, the fire extinguishing bomb will be smoothly and quickly launched to the target position, achieving precise delivery. This sliding launching mechanism 210 design not only makes the launching process of the fire extinguishing bomb more stable and controllable.

[0043] Further, please see Figure 2 The servo motor 300 includes a mounting bracket 310 and a driver 320 disposed on the mounting bracket 310; the first shaft 331 is fixedly connected to the output shaft of the driver 320, and the two ends of the second shaft 332 are respectively hinged to the first shaft 331 and the third shaft 333; a displacement sensor 334 is also provided on one side of the first shaft 331 on the mounting bracket 310 for detecting the stroke of the first shaft 331.

[0044] The mounting bracket 310 is also provided with a guide block 335, and the third shaft 333 is connected to the throwing mechanism via the guide block 335 to achieve a retractable relationship.

[0045] The servo motor 300 includes a first shaft 331, a second shaft 332, and a third shaft 333; the servo motor 300 controls the retraction relationship between the third shaft 333 and the throwing mechanism to realize the timing of the fire extinguishing bomb release.

[0046] In use, the servo motor 300 controls the third shaft 333 to insert into the limiting hole 213 of the first slider 212, thus restricting the position of the first slider 212 to the slide rail 211 and preventing it from moving. When it is necessary to throw the fire extinguishing bomb, the driver 320 is activated to rotate the output shaft, thereby driving the first shaft 331 to rotate. The second shaft 332 and the third shaft 333 move along a preset trajectory as the first shaft 331 rotates, causing the third shaft 333 to disengage from the limiting hole 213 and lose its restriction on the position of the first slider 212. This allows the first slider 212 and the second slider 213 to drive the fire extinguishing bomb to move along the slide rail 211, achieving the throwing. When the first shaft 331 moves to a preset position and is detected by the displacement sensor 334, the driver 320 is turned off. At this time, the first shaft 331 stops rotating, and the second shaft 332 and the third shaft 333 also stop moving.

[0047] During this process, the movement trajectory of the third axis 333 is precisely controlled due to the presence of the guide block 335, ensuring the accuracy and stability of the retraction of the throwing mechanism. At the same time, this design also makes the servo motor 300 more flexible and reliable in controlling the timing of the fire extinguishing grenade release, allowing it to adjust the throwing force and angle according to actual needs.

[0048] Furthermore, please see Figure 4 The drone-specific horizontal fire extinguishing bomb suspension device further includes a first connecting frame 410 and a second connecting frame 420, which are symmetrically arranged; the mounting mechanism is disposed between the first connecting frame 410 and the second connecting frame 420 and is detachably connected to the first connecting frame 410 and the second connecting frame 420.

[0049] In this embodiment, the fire extinguishing bomb is positioned at a specific location between the first connecting frame 410 and the second connecting frame 420. These two connecting frames not only protect the fire extinguishing bomb, ensuring its safety during transportation and storage, but also help increase its distance from the ground before launch. This design effectively prevents damage to the fire extinguishing bomb from ground contact during launch, while also providing the necessary space for it to smoothly detach from the ground and reach the expected flight altitude and range.

[0050] Example 2

[0051] Please see Figure 5 This utility model provides a special horizontal fire extinguishing bullet suspension device for UAVs. In embodiment 1, the horizontal fire extinguishing bullet is long and narrow with a large length and a small diameter. However, for fire extinguishing bullets with a large diameter, due to their weight and center of gravity distribution, it is not convenient to mount them via the slide rail 211.

[0052] Therefore, in Embodiment 2 of this utility model, a mounting scheme for fire extinguishing bombs with larger diameters is provided. For example, the Dragon Wing fire extinguishing bomb is a long-range precision fire extinguishing device, typically deployed by drones or aircraft, utilizing aerodynamic design to glide to the target fire site. It is filled with dry powder, gel, or flame retardant, and can be released in the air or upon impact, rapidly covering a large area of ​​fire source, suitable for difficult-to-access emergencies such as forest fires and high-rise building fires. In terms of effectiveness, it can overcome terrain limitations, achieve efficient fire extinguishing, and reduce the direct risks faced by firefighters, but it relies on vehicles for delivery, resulting in higher costs.

[0053] In this embodiment, the mounting mechanism is a mounting frame 120, which is disposed between the first connecting frame 410 and the second connecting frame 420, and there is at least one mounting frame 120; the mounting frame 120 is provided with an installation space for accommodating the fire extinguishing bomb.

[0054] The mounting frame 120 is provided with an installation range for mounting the fire extinguishing bomb. By placing the fire extinguishing bomb in this range and clamping the center of gravity of the fire extinguishing bomb with the mounting frame 120, the stability and safety of the fire extinguishing bomb during the mounting process can be ensured.

[0055] The mounting bracket 120 is also equipped with a locking mechanism to secure the fire extinguishing bombs and prevent them from falling off during flight due to airflow or other factors.

[0056] When the fire extinguishing bomb is delivered to the preset position, the locking mechanism is opened by the servo motor 300, so that the fire extinguishing bomb can be successfully deployed to the target area.

[0057] The locking mechanism can be the belt throwing mechanism 230 in Embodiment 4 or other locking mechanisms.

[0058] Example 3

[0059] Please see Figure 3This utility model provides a suspension device for a horizontal fire extinguishing grenade specifically designed for drones. In Embodiment 1, the horizontal fire extinguishing grenade is elongated, while in Embodiment 2, the dragon-wing fire extinguishing grenade is cylindrical with a larger diameter. However, for spherical fire extinguishing grenade, the suspension devices in Embodiments 1 and 2 are not suitable due to the shape and center of gravity of the spherical fire extinguishing grenade. For example, throwable fire extinguishing grenades, spherical throwable fire extinguishing grenades, are portable emergency fire extinguishing devices. They are thrown manually or launched from a simple launcher, releasing an extinguishing agent (such as dry powder or gas) instantly upon impact with the fire source. They are suitable for initial fires in homes, vehicles, or in the wild, quickly suppressing small-scale fires. Operation is simple and requires no professional training. In terms of effectiveness, they are fast-responding and low-cost, but the throwing distance is limited (usually <50 meters), and they are for single use only, making them suitable for emergency evacuation rather than prolonged fire extinguishing.

[0060] Therefore, the suspension device was further optimized in this embodiment to accommodate the spherical fire extinguishing projectile.

[0061] The throwing mechanism is a hook-and-throw mechanism 220; the fire extinguishing bomb is hung on the hook-and-throw mechanism 220; the third shaft 333 is connected to the hook-and-throw mechanism 220, and when the third shaft 333 extends and pushes the hook 221 of the hook-and-throw mechanism 220, the hook 221 opens and throws the fire extinguishing bomb.

[0062] In use, first place the fire extinguishing bomb on the lug-mounted throwing mechanism 220 and ensure it is securely mounted. Then, start the drone and fly it over the target fire source. Once the drone reaches the designated position, activate the third axis 333 via the servo motor 300. The third axis 333 quickly extends and pushes the lug 221 of the lug-mounted throwing mechanism 220. The lug 221 opens rapidly under the thrust, simultaneously releasing the mounted spherical fire extinguishing bomb. The fire extinguishing bomb detaches from the lug 221 under gravity and flies towards the fire source along a predetermined parabolic trajectory. Upon impact with the fire source, the fire extinguishing bomb instantly releases its internal extinguishing agent, quickly extinguishing the fire and achieving rapid fire suppression. The entire process is simple to operate and reacts quickly, making it particularly suitable for initial fire suppression in emergency situations.

[0063] Example 4

[0064] Please see Figure 1 This utility model provides a special horizontal fire extinguishing bomb suspension device for drones. The throwing mechanism is a belt throwing mechanism 230. The belt throwing mechanism 230 includes a mounting part 231 and a locking part 232, and a limiting belt 233 disposed between the mounting part 231 and the locking part 232. One end of the belt is connected to the mounting part 231, and the other end is provided with a locking head 234 that engages with the locking part 232. The mounting part 231 and the locking part 232 are respectively provided at both ends of the mounting frame 120.

[0065] For cylindrical fire extinguishing bombs with a similar large diameter as in Embodiment 2, the belt throwing mechanism 230 can more flexibly adapt to fire extinguishing bombs of different sizes and shapes. In this embodiment, the belt throwing mechanism 230 consists of a mounting part 231, a locking part 232, and a limiting belt 233. The mounting part 231 and the locking part 232 are respectively fixed to the two ends of the mounting frame 120, and they are connected by the limiting belt 233. One end of the limiting belt 233 is firmly connected to the mounting part 231, and the other end is provided with a locking head 234, which can be locked and fixed with the locking part 232.

[0066] When it is necessary to load fire extinguishing bombs, the bombs are first placed on the belt-mounted throwing mechanism 230. Then, by adjusting the tension of the limiting belt 233, the locking head 234 is tightly engaged with the locking part 232, ensuring that the fire extinguishing bomb is securely mounted on the device. After the UAV flies over the target fire source and reaches the predetermined position, the servo motor 300 is activated to drive the third shaft 333. This third shaft 333 pushes the locking head 234 away from the locking part 232, causing the limiting belt 233 to quickly loosen. Under the action of gravity, the fire extinguishing bomb flies towards the fire source along a predetermined trajectory, achieving rapid fire extinguishing. This belt-mounted throwing mechanism 230 is not only simple in structure but also easy to operate, greatly improving fire extinguishing efficiency.

[0067] Example 5

[0068] Please see Figure 1 This utility model embodiment provides a dedicated horizontal fire extinguishing bomb suspension device for drones. The throwing mechanism is a pair of spaced-apart sliding throwing mechanisms 210 that can carry two horizontal material bombs.

[0069] The two horizontal material projectiles are adjacent to each other and are controlled by two servo motors 300 respectively; each sliding throwing mechanism 210 includes a slide rail 211, a slider, and the aforementioned belt throwing mechanism 230. The slide rail 211 is fixed on the mounting frame 120, the slider can slide freely on the slide rail 211, and the belt throwing mechanism 230 is mounted on the slider.

[0070] By adjusting the position of the slider on the slide rail 211, the release interval between the two horizontal material projectiles (i.e., fire extinguishing projectiles) can be flexibly adjusted to adapt to different fire extinguishing needs and scenarios. This design not only improves the flexibility and adaptability of the mounting device.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A horizontal fire extinguishing bomb suspension device for unmanned aerial vehicles (UAVs), characterized in that, include: Mounting mechanism, used to connect to the drone and mount fire extinguishing bombs; The throwing mechanism is fixedly installed at the bottom of the mounting mechanism and is used to fix or release the fire extinguishing bomb; The top of the mounting mechanism is also equipped with a servo motor (300) for controlling the timing of the release of the fire extinguishing bomb by the throwing mechanism. The servo motor (300) includes a first shaft (331), a second shaft (332), and a third shaft (333); the servo motor (300) controls the retraction relationship between the third shaft (333) and the throwing mechanism to realize the timing of the fire extinguishing bomb release.

2. The UAV-specific horizontal fire extinguishing bomb suspension device according to claim 1, characterized in that, It also includes a first connecting frame (410) and a second connecting frame (420), the first connecting frame (410) and the second connecting frame (420) being arranged symmetrically; The mounting mechanism is disposed between the first connecting frame (410) and the second connecting frame (420) and is detachably connected to the first connecting frame (410) and the second connecting frame (420).

3. The UAV-specific horizontal fire extinguishing bomb suspension device according to claim 1, characterized in that, The mounting mechanism is a mounting plate (110), and the servo motor (300) and the throwing mechanism are respectively located at the top and bottom of the mounting plate (110).

4. A horizontal fire extinguishing bomb suspension device for UAVs according to claim 2, characterized in that, The mounting mechanism is a mounting frame (120), which is disposed between the first connecting frame (410) and the second connecting frame (420), and there is at least one mounting frame (120); The mounting frame (120) is provided with an installation space to accommodate the fire extinguishing bomb.

5. A horizontal fire extinguishing bomb suspension device for UAVs according to claim 3, characterized in that, The throwing mechanism is a sliding throwing mechanism (210). The sliding throwing mechanism (210) is located at the bottom of the mounting plate (110) and includes a slide rail (211) and a first slider (212) and a second slider (214) that can slide based on the slide rail (211). Both the first slider (212) and the second slider (214) are used to mount the fire extinguishing bomb; The first slider (212) is provided with a limiting hole (213), and the third shaft (333) extends into the limiting hole (213). When the third shaft (333) retracts and leaves the limiting hole (213), the first slider (212) can move freely on the slide rail (211).

6. A horizontal fire extinguishing bomb suspension device for UAVs according to claim 3, characterized in that, The throwing mechanism is a hook-type throwing mechanism (220); the fire extinguishing bomb is hung on the hook-type throwing mechanism (220); The third shaft (333) is connected to the ear-mounted throwing mechanism (220), and when the third shaft (333) extends and pushes the ear (221) of the ear-mounted throwing mechanism (220), the ear (221) opens and throws the fire extinguishing bomb.

7. A horizontal fire extinguishing bomb suspension device for UAVs according to claim 5, characterized in that, The throwing mechanism is a pair of sliding throwing mechanisms (210) arranged at intervals.

8. A horizontal fire extinguishing bomb suspension device for UAVs according to claim 4, characterized in that, The throwing mechanism is a belt throwing mechanism (230). The belt throwing mechanism (230) includes an installation part (231) and a locking part (232), and a limiting belt (233) disposed between the installation part (231) and the locking part (232). One end of the belt is connected to the installation part (231), and the other end is provided with a locking head (234) that engages with the locking part (232). The mounting part (231) and the snap-fit ​​part (232) are respectively disposed on both ends of the mounting frame (120).

9. A horizontal fire extinguishing bomb suspension device for UAVs according to claim 1, characterized in that, The servo motor (300) includes a mounting bracket (310) and a driver (320) disposed on the mounting bracket (310). The first shaft (331) is fixedly connected to the output shaft of the driver (320), and the two ends of the second shaft (332) are respectively hinged to the first shaft (331) and the third shaft (333); The mounting bracket (310) is also provided with a displacement sensor (334) on one side of the first shaft (331) for detecting the stroke of the first shaft (331).

10. A horizontal fire extinguishing bomb suspension device for UAVs according to claim 9, characterized in that, The mounting bracket (310) is also provided with a guide block (335), and the third shaft (333) is connected to the throwing mechanism via the guide block (335).

Citation Information

Patent Citations

  • Fire extinguishing bomb mounting device for fire-fighting unmanned aerial vehicle

    CN216128437U