Fire-fighting bomb throwing mechanism of unmanned aerial vehicle

Abstract

The fire-fighting bomb throwing mechanism of the unmanned aerial vehicle comprises a connecting frame used for being fixedly connected to the bottom of the unmanned aerial vehicle, bomb throwing boxes are symmetrically and fixedly connected to the left end and the right end of the connecting frame, the bottom ends of the bomb throwing boxes are open and serve as bomb throwing openings, and cylindrical bomb storage cavities are formed in the bomb throwing boxes. At least two projectile throwing control assemblies are distributed between the two projectile throwing boxes in the vertical direction, and each projectile throwing control assembly is provided with an electric mechanism used for controlling projectile throwing actions of the two projectile throwing boxes in a linkage mode. At least two bomb throwing control assemblies are distributed between the two bomb throwing boxes in the vertical direction, each bomb throwing control assembly is used for independently controlling the corresponding fire-fighting bomb, and bomb throwing can be achieved in batches according to needs. Each group of bomb throwing control assembly adopts a double-side bomb throwing parallel mode and is mounted on the two sides of the unmanned aerial vehicle, so that the flight balance of the unmanned aerial vehicle is facilitated, and meanwhile, the fire extinguishing efficiency can be improved through the double-side parallel throwing mode. And during bomb throwing, the fire-fighting bombs can vertically fall down in the cylindrical bomb storage cavity in the bomb throwing box, and the bomb throwing precision is improved to a certain degree.

Description

Technical Field

[0001] This utility model relates to a mechanism for launching fire-fighting projectiles from a drone. Background Technology

[0002] As my country's total forest resources continue to grow, the scope of fire risk is gradually expanding, especially in key forest areas such as the Lesser Khingan Mountains and Changbai Mountains, where the amount of combustible material far exceeds the critical value for major forest fires. Once extreme weather conditions such as high temperatures and strong winds occur, fires are highly likely to break out. Furthermore, my country's forests often feature complex terrain, making it difficult for fire trucks and personnel to quickly reach the fire scene. The transportation of firefighting equipment and supplies is also restricted. The total number of aerial firefighting aircraft for forests is insufficient, and the need for human piloting poses significant safety risks. Therefore, the use of small unmanned aerial vehicles (UAVs) carrying ammunition for long-range firefighting has become a trend in forest fire prevention. However, current UAV-based ammunition-carrying methods on the market have the following shortcomings:

[0003] 1. The hook-type method is often used. This method has specific requirements for the structure and shape of the fire-fighting projectile, which must meet the hook conditions. Moreover, the structure cannot be used for simultaneous deployment of multiple projectiles, resulting in low efficiency in single fire extinguishing. The fire-fighting projectile cannot maintain stability during the flight of the drone, which affects the flight attitude of the drone and increases the risk of crash.

[0004] 2. When dropping bombs, the drone can only drop all the fire-fighting bombs at the predetermined location at once, and cannot drop bombs in multiple batches as needed.

[0005] To address the above technical issues, this case proposes a mechanism for launching fire-fighting projectiles by unmanned aerial vehicles (UAVs). Utility Model Content

[0006] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a mechanism for launching fire bombs by drones.

[0007] To solve the above-mentioned technical problems, the technical solution of this utility model is: a drone bomb-throwing mechanism, including a connecting frame for fixed connection to the bottom of the drone, bomb-throwing boxes with open bottoms serving as bomb-throwing ports are symmetrically fixedly connected to the left and right ends of the connecting frame, each bomb-throwing box having a cylindrical bomb storage cavity inside, and at least two sets of bomb-throwing control components distributed vertically between the two bomb-throwing boxes, each bomb-throwing control component being equipped with an electric mechanism for linkage control of the bomb-throwing action of the two bomb-throwing boxes.

[0008] Preferably, each of the projectile control components includes a projectile stopper that is horizontally slidably connected to two projectile boxes. An electric mechanism is connected between the two projectile stoppers of the same projectile control component to drive the two projectile stoppers of the same projectile control component to move synchronously closer or synchronously move away.

[0009] Preferably, the connecting frame is an "I"-shaped bracket, and the left and right ends of the bracket are respectively screwed and locked to the inner top of the bomb box on the same end side.

[0010] Preferably, the middle part of the support is fixed to the two unmanned aerial vehicle beams at the bottom of the unmanned aerial vehicle through a hoop.

[0011] Preferably, the ammunition storage cavity and the ammunition throwing opening are vertically through.

[0012] Preferably, the bullet stopper comprises a connecting rod, and bullet stoppers are vertically and fixedly arranged at both ends of the connecting rod, and the two bullet stoppers and the connecting rod are fixedly arranged to form a "U" shape, and the bullet stoppers are horizontally inserted into the ammunition storage cavity inside the ammunition throwing box along the side of the ammunition throwing box.

[0013] Preferably, the bullet stopper is in the shape of a cylinder, the side of the ammunition throwing box has a cylindrical insertion hole for the bullet stopper, and the distance between the two bullet stoppers of the same bullet stopper is less than the inner diameter of the ammunition storage cavity.

[0014] Preferably, the electric mechanism comprises a steering engine, the output shaft of the steering engine faces downward, a crank is fixedly connected to the output shaft, and the output shaft is fixedly connected to the middle part of the crank, both ends of the crank are hingedly connected to connecting rods, and the connecting rods are hingedly connected to the middle part of the connecting rod of the bullet stopper on the same side.

[0015] Preferably, a side pull rod is screwed at the position of each electric mechanism between the front and rear sides of the two ammunition throwing boxes, two mounting pull rods are screwed between the middle parts of the front and rear side pull rods, and the steering engine is screwed on the two mounting pull rods.

[0016] Preferably, left and right extension grooves are formed in the side pull rod, and the side pull rod is connected to the mounting through hole on the mounting pull rod through a bolt and a nut; and front and rear extension grooves are formed in the mounting pull rod, and the mounting pull rod is connected to the mounting through hole on the steering engine through a bolt and a nut.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] 1. At least two groups of ammunition throwing control assemblies are vertically arranged between the two ammunition throwing boxes, each group of ammunition throwing control assembly is used for individually controlling corresponding fire-fighting bombs, and on-demand sub-bombing can be realized.

[0019] 2. Each group of ammunition throwing control assembly adopts a double-side bomb-throwing parallel mode, is installed on both sides of the unmanned aerial vehicle, is favorable for flight balance of the unmanned aerial vehicle, and the double-side parallel bomb-throwing mode can improve fire extinguishing efficiency.

[0020] 3. The fire-fighting bomb can vertically fall in the cylindrical ammunition storage cavity inside the ammunition throwing box during bomb-throwing, and bomb-throwing precision is improved to a certain extent.

[0021] The utility model will be further described in detail in combination with the drawings and specific embodiments. DRAWINGS

[0022] Fig. 1This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0023] Fig. 2 This is a partial structural diagram of an embodiment of the present utility model.

[0024] Fig. 3 This is a schematic diagram of the servo motor installation. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0027] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0028] like Figs. 1-3 As shown, this embodiment provides a drone bomb-throwing mechanism, including a connecting frame for fixed connection to the bottom of the drone. The connecting frame is symmetrically fixed to the left and right ends of bomb-throwing boxes 1 with open bottoms as bomb-throwing ports 2. Each bomb-throwing box has a cylindrical bomb storage cavity 7 inside. Two sets of bomb-throwing control components 19 are vertically distributed between the two bomb-throwing boxes. Each bomb-throwing control component is equipped with an electric mechanism for linkage control of the bomb-throwing action of the two bomb-throwing boxes.

[0029] The cylindrical ammunition storage chamber has an inner diameter slightly larger than that of the Firefighting Ammunition 8. During dispensing, the Firefighting Ammunition falls vertically within the cylindrical storage chamber inside the ammunition box, which improves the dispensing accuracy to some extent. Furthermore, the storage chamber reduces the swaying of the Firefighting Ammunition, minimizing its impact on the stability of the UAV and improving safety performance.

[0030] In this embodiment of the utility model, each of the projectile control components includes a projectile stopper 3 that is horizontally slidably connected to two projectile boxes. An electric mechanism is connected between the two projectile stoppers of the same projectile control component to drive the two projectile stoppers of the same projectile control component to move synchronously closer or synchronously move away.

[0031] In this embodiment of the utility model, the connecting frame is an "I"-shaped bracket 4, and the left and right ends of the bracket are respectively screwed and locked to the inner top of the bomb box on the same end side.

[0032] In the embodiment of the utility model, the middle part of the support is fixedly connected with the two unmanned aerial vehicle cross beams 6 at the bottom of the unmanned aerial vehicle through the hoop 5.

[0033] In the embodiment of the utility model, the cartridge chamber and the cartridge ejection opening are vertically through.

[0034] In the embodiment of the utility model, the bullet blocking device comprises a connecting rod 9, bullet blocking rods 10 are vertically and fixedly arranged at the two ends of the connecting rod, the two bullet blocking rods and the connecting rod are fixedly arranged with each other to form a "U" shape, and the bullet blocking rods are horizontally inserted into the cartridge chamber in the inside of the cartridge ejection box along the side of the cartridge ejection box.

[0035] In the embodiment of the utility model, the shape of the bullet blocking rod is a cylinder, the side of the cartridge ejection box is provided with a cylindrical insertion hole 11 for inserting the bullet blocking rod, and the distance between the two bullet blocking rods of the same bullet blocking device is smaller than the inner diameter of the cartridge chamber.

[0036] In the embodiment of the utility model, the electric mechanism comprises a steering engine 12, the output shaft of the steering engine faces downward, a crank is fixedly connected to the output shaft, and the output shaft is fixedly connected to the middle part of the crank 13, the two ends of the crank are hingedly connected with connecting rods 14, the connecting rods are hingedly connected with the middle part of the connecting rod of the bullet blocking device on the same side, and a crank slider mechanism is formed.

[0037] In the embodiment of the utility model, a side pull rod 15 is screwed at the position of each electric mechanism between the front and rear sides of the two cartridge ejection boxes, two mounting pull rods 16 are screwed between the middle parts of the front and rear side pull rods, and the steering engine is screwed on the two mounting pull rods.

[0038] In the embodiment of the utility model, left and right extension groove strips 17 are formed on the side pull rod, the mounting through holes on the mounting pull rod are connected through bolts and nuts, front and rear extension groove strips 18 are formed on the mounting pull rod, and the mounting through holes on the steering engine are connected through bolts and nuts.

[0039] In the embodiment of the utility model, the working principle of the unmanned aerial vehicle fire extinguishing bullet throwing mechanism is as follows: the unmanned aerial vehicle is controlled to fly above the fire, the lower bullet throwing control assembly is first opened to realize bomb throwing, and the upper bullet throwing control assembly can be temporarily closed; when bomb throwing needs to be performed again, the lower bullet throwing control assembly is first opened, and then the upper bullet throwing control assembly is opened, so that the bomb throwing can be performed in batches.

[0040] For the single group of throwing bomb control assembly, when the steering engine receives the signal to rotate clockwise, the crank rotates clockwise, thereby moving the connecting rod, at this time the bomb blocking rod of the bomb blocking device will be translated along the cylindrical insertion hole, thereby supporting the fire bomb. When the steering engine receives the signal to rotate counterclockwise, the bomb blocking rod will be translated along the cylindrical insertion hole in the reverse direction, and then the fire bomb loses support and falls, that is, the bomb throwing process is carried out. The double-side bomb throwing parallel device is installed on both sides of the unmanned aerial vehicle, which is beneficial to the flight balance of the unmanned aerial vehicle, and the double-side parallel throwing mode can improve the fire extinguishing efficiency. In the structure, the side pull rod, the installation pull rod and the steering engine are connected by the groove strip, the micro adjustment of the steering engine in the horizontal plane can be realized, the assembly precision requirement is reduced, the assembly work is more flexible, the cylindrical head of the bomb blocking rod supports the bottom of the fire bomb, the contact area with the fire bomb can be reduced, the friction force can be reduced, and the stability of the bomb throwing process can be improved.

[0041] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to obtain equivalent embodiments. However, any simple modification, equivalent change and modification of the above embodiments without departing from the technical scheme of the present application, according to the technical essence of the present application, still belongs to the protection scope of the technical scheme of the present application.

Claims

1. A drone fire bomb throwing mechanism, characterized by: The utility model provides a kind of unmanned aerial vehicle, including the connecting frame for fixing connection in the bottom of unmanned aerial vehicle, the left and right ends of the connecting frame are symmetrically fixedly connected with the projectile box with open bottom as projectile port, the inside of the projectile box is equipped with cylindrical ammunition storage cavity, at least two groups of projectile control components are distributed between two projectile boxes along vertical direction, and electric mechanism is arranged on the projectile control component to link control the projectile action of two projectile boxes.

2. The unmanned aerial vehicle firebombing mechanism of claim 1, wherein: The projectile control component includes the bullet stopper that is horizontally slidably connected on the two projectile boxes respectively, and the electric mechanism is connected between the two bullet stoppers of the same projectile control component to drive the two bullet stoppers of the same projectile control component to synchronously translate close to each other or synchronously translate away from each other.

3. The unmanned aerial vehicle firebombing mechanism of claim 1, wherein: The connecting frame is a "H" shaped support, and the left and right ends of the support are respectively screwed and locked on the top inside of the projectile box on the same side.

4. The unmanned aerial vehicle firebombing mechanism of claim 3, wherein: The middle part of the support is fixedly connected with the two unmanned aerial vehicle beams of the bottom of unmanned aerial vehicle through a hoop.

5. The unmanned aerial vehicle firebombing mechanism of claim 1, wherein: The ammunition storage cavity and the projectile port are vertically penetrated.

6. The unmanned aerial vehicle firebombing mechanism of claim 2, wherein: The bullet stopper includes a connecting rod, and bullet stoppers are vertically and fixedly arranged at both ends of the connecting rod, and the two bullet stoppers and the connecting rod are fixedly arranged to form a "U" shape, and the bullet stopper is horizontally inserted into the ammunition storage cavity inside the projectile box along the side of the projectile box.

7. The unmanned aerial vehicle firebombing mechanism of claim 6, wherein: The bullet stopper is in the shape of a cylinder, the side of the projectile box has a cylindrical insertion hole for inserting the bullet stopper, and the distance between the two bullet stoppers of the same bullet stopper is less than the inner diameter of the ammunition storage cavity.

8. The unmanned aerial vehicle firebombing mechanism of claim 2, wherein: The electric mechanism includes a rudder, the output shaft of the rudder faces downward and is fixedly connected with a crank, the output shaft is fixedly connected in the middle part of the crank, the two ends of the crank are hingedly connected with connecting rods, and the connecting rods are hingedly connected with the middle part of the connecting rod of the bullet stopper on the same side.

9. The unmanned aerial vehicle firebombing mechanism of claim 8, wherein: The side edge pull rod is screwed between the positions of each electric mechanism between the front and rear sides of the two projectile boxes, two mounting pull rods are screwed between the middle parts of the front and rear side edge pull rods, and the rudder is screwed on the two mounting pull rods.

10. The unmanned aerial vehicle firebombing mechanism of claim 9, wherein: The left and right extending grooves are formed in the side edge pull rod to be connected with the mounting through hole on the mounting pull rod through bolt and nut; and the front and rear extending grooves are formed in the mounting pull rod to be connected with the mounting through hole on the rudder through bolt and nut.

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