Helicopter-mounted fire extinguishing device

Abstract

The utility model belongs to fire extinguishing device technical field, specifically is a kind of helicopter external fire extinguishing device, including bucket main part;The upper portion of bucket main part is provided with annular support plate, annular support plate is provided with air pump, the bottom of bucket main part is hingedly connected with barrel bottom cover, the lower portion of bucket main part is provided with drainage magnetic valve, the inboard of bucket main part is provided with lining support, lining support is provided with mixing mechanism, multiple lining supports are vertically and uniformly provided with reinforcing ring stand, mixing mechanism includes the air pipe support setting in annular support plate, air pipe support includes multiple annular air pipes vertically and uniformly arranged, multiple air mixing elements are uniformly provided on annular air pipe, one group of through pipes is respectively arranged between multiple annular air pipes, air pump is provided on annular support plate, connecting pipe is provided on air pump, the other end of connecting pipe is provided with arc shunt pipe, the lower end of arc shunt pipe is connected with the uppermost annular air pipe, it can mix uniformly fire extinguishing agent and liquid in the bucket.

Description

Technical Field

[0001] This utility model belongs to the technical field of fire extinguishing devices, specifically a helicopter external fire extinguishing device. Background Technology

[0002] The core equipment of firefighting aviation technology is firefighting aircraft. Because helicopters have unique capabilities such as vertical take-off and landing and hovering, they are more suitable for firefighting missions in many ways, especially for high-altitude firefighting.

[0003] The helicopter carries a bucket filled with fire extinguishing liquid, flies over the fire site, and at a suitable position and altitude, the operator opens the release valve at the bottom through the control device to evenly spray water onto the fire source to extinguish the fire.

[0004] When extinguishing a fire, extinguishing agent and water need to be added to the bucket. Since a large amount of extinguishing liquid is required for fire extinguishing, the bucket is generally large in capacity and deep, which can easily cause uneven mixing of the extinguishing agent and liquid. Therefore, a helicopter external fire extinguishing device is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, this utility model proposes a helicopter external fire extinguishing device.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The helicopter external fire extinguishing device of this utility model includes a bucket body; an annular support plate is provided above the bucket body, an air pump is provided on the annular support plate, a bucket bottom cover plate is hinged to the bottom of the bucket body, a drain solenoid valve is provided at the lower part of the bucket body, the drain solenoid valve is adapted to the bucket bottom cover plate, an inner lining support is provided on the inner side of the bucket body, and a mixing mechanism is provided on the inner lining support.

[0007] Preferably, the inner lining support includes a plurality of lining frames evenly arranged circumferentially on the inner wall of the bucket body, and reinforcing ring frames are evenly arranged longitudinally on the plurality of lining frames.

[0008] Preferably, the mixing mechanism includes an air pipe support disposed on the inner side of the annular support plate. The air pipe support includes a plurality of annular air pipes evenly arranged longitudinally. A plurality of air mixing components are evenly disposed on the annular air pipes. A set of connecting pipes is disposed between the plurality of annular air pipes. An air pump is disposed on the annular support plate. A connecting pipe is disposed on the air pump. An arc-shaped diverter is disposed at the other end of the connecting pipe. The lower end of the arc-shaped diverter is connected to the uppermost annular air pipe.

[0009] Preferably, the gas mixing component includes a nozzle disposed on the annular gas pipe, the nozzle being provided with a mounting base, and the mounting base being provided with a bubble-breaking impeller.

[0010] Preferably, the number of nozzles on the annular air pipe is eight, and the nozzles are oriented toward the axis of the main body of the bucket.

[0011] Preferably, the lower part of the inner lining support is provided with a support, and the upper part of the support is provided with a drain impeller.

[0012] The beneficial effects of this utility model are:

[0013] This utility model provides a helicopter external fire extinguishing device. Through the structural design of the mixing mechanism, the fire extinguishing solvent in the bucket body can be fully mixed. Through the structural design of the air pipe support, multiple annular air pipes are longitudinally distributed inside the bucket body, and multiple air mixing components are evenly arranged on the annular air pipes. By remotely controlling the operation of the air pump, the connecting pipe injects gas into the arc-shaped diverter pipe. The arc-shaped diverter pipe quickly ventilates the air pipe support. The gas generates a large number of bubbles through the nozzles on the annular air pipes. The bubbles push the bubble-breaking impellers on the corresponding nozzles to rotate, breaking the small bubbles sprayed from the nozzles and generating more small bubbles, thus fully aerodynamically mixing the fire extinguishing liquid in the bucket body.

[0014] This utility model provides a helicopter external fire extinguishing device. By installing a drain impeller on the support, when the main body of the bucket releases fire extinguishing liquid, the fire extinguishing liquid is discharged downwards, causing the drain impeller to rotate, which is beneficial to the discharge efficiency of the fire extinguishing liquid and improves the fire extinguishing efficiency. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0016] In the attached diagram:

[0017] Figure 1 This is a perspective view of the present invention;

[0018] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 This is a schematic diagram of the upper part of this utility model;

[0020] Figure 4 This is a schematic diagram of the mixing mechanism;

[0021] Figure 5 This is a 3D view of the air-fuel mixture component.

[0022] Legend:

[0023] 1. Bucket body; 2. Annular support plate; 3. Air pump; 4. Bucket bottom cover plate; 5. Drain solenoid valve; 6. Liner; 7. Reinforcing ring frame; 8. Annular air pipe; 9. Air mixing component; 10. Through pipe; 11. Connecting pipe; 12. Arc-shaped diverter pipe; 13. Nozzle; 14. Mounting base; 15. Bubble-breaking impeller; 16. Support; 17. Drain impeller. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Specific implementation examples are given below.

[0026] Please see Figures 1-5 This utility model provides a helicopter external fire extinguishing device, including a bucket body 1; a remote controller is installed on the bucket body 1, which can remotely control the electrical components on the bucket body 1; the bucket body 1 is used to add fire extinguishing liquid; an annular support plate 2 is installed above the bucket body 1, and a set of booms is installed on the annular support plate 2 to facilitate the helicopter to lift the bucket body 1 by steel cables; an air pump 3 is installed on the annular support plate 2; a bucket bottom cover plate 4 is hinged to the bottom of the bucket body 1; a drain solenoid valve 5 is installed at the lower part of the bucket body 1, which is adapted to the bucket bottom cover plate 4, and the fire extinguishing liquid in the bucket body 1 is controlled to be discharged by controlling the drain solenoid valve 5; an inner lining support is installed on the inner side of the bucket body 1, which improves the overall structure of the bucket body 1 and extends the service life of the bucket body 1; a mixing mechanism is installed on the inner lining support, which uniformly mixes the fire extinguishing liquid inside the bucket body 1 through the structure of the mixing mechanism.

[0027] Furthermore, such as Figure 1 and Figure 3 As shown, the inner lining support includes multiple lining frames 6 evenly arranged circumferentially on the inner wall of the bucket body 1, and reinforcing ring frames 7 evenly arranged longitudinally on the multiple lining frames 6. The lining frames 6 and the reinforcing ring frames 7 are integrally formed, which improves the overall structure of the bucket body 1 and extends the service life of the bucket body 1.

[0028] Furthermore, such as Figure 3 and Figure 4As shown, the mixing mechanism includes an air pipe support set inside the annular support plate 2. The air pipe support includes multiple annular air pipes 8 arranged longitudinally and evenly. Multiple air mixing components 9 are evenly arranged on the annular air pipes 8. A set of connecting pipes 10 is set between the multiple annular air pipes 8. An air pump 3 is set on the annular support plate 2. A connecting pipe 11 is set on the air pump 3. An arc-shaped diversion pipe 12 is set at the other end of the connecting pipe 11. The lower end of the arc-shaped diversion pipe 12 is connected to the uppermost annular air pipe 8. Through the structural arrangement of the mixing mechanism, the fire extinguishing liquid inside the bucket body 1 can be evenly mixed.

[0029] Furthermore, such as Figure 4 and Figure 5 As shown, the air mixing component 9 includes a nozzle 13 mounted on an annular air pipe 8, a mounting base 14 mounted on the nozzle 13, and a bubble-breaking impeller 15 mounted on the mounting base 14 to break up the small bubbles sprayed from the nozzle 13, generating more small bubbles and fully aerodynamically mixing the extinguishing liquid in the bucket body 1.

[0030] Furthermore, such as Figure 4 As shown, there are eight nozzles 13 on the annular air pipe 8. The nozzles 13 are oriented toward the axis of the bucket body 1, so that the air bubbles sprayed from the nozzles 13 are directed inward, which improves the mixing effect of the extinguishing liquid in the bucket body 1.

[0031] Furthermore, such as Figure 2 As shown, a support 16 is provided at the lower part of the inner lining support, and a drain impeller 17 is provided above the support 16. The support 16 and the inner lining support are integrally formed. By providing a drain impeller 17 on the support 16, when the main body 1 of the bucket releases fire extinguishing liquid, the fire extinguishing liquid is discharged downward, causing the drain impeller 17 to rotate, which is beneficial to the discharge efficiency of the fire extinguishing liquid and improves the fire extinguishing efficiency.

[0032] Working principle: The operator adds water and extinguishing agent to the extinguishing liquid. Through the structure of the mixing mechanism, the extinguishing solvent in the main body 1 of the bucket can be fully mixed. Through the structure of the air pipe support, multiple annular air pipes 8 are longitudinally distributed inside the main body 1 of the bucket, and multiple air mixing components 9 are evenly arranged on the annular air pipes 8. By remotely controlling the operation of the air pump 3, the connecting pipe 11 injects gas into the arc-shaped diversion pipe 12. The arc-shaped diversion pipe 12 quickly ventilates the air pipe support. The gas generates more bubbles through the nozzles 13 on the annular air pipes 8. The bubbles push the bubble-breaking impellers 15 on the corresponding nozzles 13 to rotate, breaking the small bubbles sprayed from the nozzles 13 and generating more small bubbles, thus fully pneumatically mixing the extinguishing liquid in the main body 1 of the bucket.

[0033] By installing a drain impeller 17 on the support 16, when the main body 1 of the bucket releases the extinguishing liquid, the extinguishing liquid is discharged downwards, causing the drain impeller 17 to rotate, which is beneficial to the discharge efficiency of the extinguishing liquid and improves the extinguishing efficiency.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A helicopter external fire extinguishing device, comprising a bucket body (1); characterized in that: An annular support plate (2) is provided above the main body (1) of the bucket, and an air pump (3) is provided on the annular support plate (2). The bottom of the main body (1) of the bucket is hinged to a bucket bottom cover plate (4). A drain solenoid valve (5) is provided at the lower part of the main body (1). The drain solenoid valve (5) is adapted to the bucket bottom cover plate (4). An inner lining support is provided on the inner side of the main body (1), and a mixing mechanism is provided on the inner lining support.

2. A helicopter external fire-fighting device according to claim 1, characterised in that: The inner lining support includes a plurality of lining frames (6) evenly arranged circumferentially on the inner wall of the bucket body (1), and a reinforcing ring frame (7) is evenly arranged longitudinally on the plurality of lining frames (6).

3. A helicopter external fire-fighting device according to claim 1, characterised in that: The mixing mechanism includes an air pipe support set inside the annular support plate (2). The air pipe support includes a plurality of annular air pipes (8) arranged longitudinally and evenly. A plurality of air mixing components (9) are evenly arranged on the annular air pipes (8). A set of connecting pipes (10) is set between the plurality of annular air pipes (8). An air pump (3) is set on the annular support plate (2). A connecting pipe (11) is set on the air pump (3). An arc-shaped diverter pipe (12) is set at the other end of the connecting pipe (11). The lower end of the arc-shaped diverter pipe (12) is connected to the uppermost annular air pipe (8).

4. A helicopter external fire-fighting device according to claim 3, characterised in that: The gas mixing component (9) includes a nozzle (13) disposed on the annular gas pipe (8), a mounting base (14) disposed on the nozzle (13), and a bubble-breaking impeller (15) disposed on the mounting base (14).

5. A helicopter external fire-fighting device according to claim 4, characterised in that: The number of nozzles (13) on the annular air pipe (8) is eight, and the nozzles (13) are oriented toward the axis of the bucket body (1).

6. A helicopter external fire fighting device according to claim 1 wherein: The lower part of the inner lining support is provided with a support (16), and the upper part of the support (16) is provided with a drain impeller (17).

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