Unmanned aerial vehicle fire extinguishing window breaking bullet structure

Abstract

The utility model discloses an unmanned plane fire extinguishing window breaking bullet structure, including the front end is the conical window breaking bullet head, the middle part of window breaking bullet head and rear end slide setting in the main part of cylinder, the one end of main part is connected with the heat insulation bottom plate through at least two connecting blocks away from window breaking bullet head, and the end surface between heat insulation bottom plate and main part forms a gasbag groove, and the gasbag groove is provided with the gasbag for reducing glass fragments drop when breaking window. Through setting up the gasbag, the broken glass fragments can be wrapped and taken into the building interior along with the window breaking bullet head when the window breaking bullet breaks the window, the glass fragments falling to the building exterior are reduced, the harm and damage caused to the pedestrians, vehicles or public facilities, articles etc. outside the building are reduced, the safety factor of the window breaking process is improved, and the secondary disaster caused by the fire is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of drone fire extinguishing accessories, specifically a drone fire extinguishing window-breaking projectile structure. Background Technology

[0002] With urban development, high-rise buildings are becoming increasingly common. When fires occur in high-rise buildings, external firefighting and rescue operations are a common method. In drone-based firefighting, it is often necessary to first use window-breaking grenades to break the building's windows before deploying fire extinguishing grenades to enter and extinguish the fire inside.

[0003] In high-rise firefighting operations involving breaking windows, falling glass shards pose a serious problem. The taller the building, the greater the speed and impact of falling glass shards, increasing the likelihood of injury and damage. Glass shards can cause severe injury and damage to pedestrians, vehicles, public facilities, and property outside the building, increasing the difficulty and danger of rescue operations. Therefore, effectively reducing the amount of falling glass shards while breaking windows to extinguish fires is a pressing technical challenge. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a drone fire-fighting window-breaking projectile structure. The airbag can be deployed when the projectile breaks the window to wrap the shattered glass fragments, thereby reducing the amount of glass fragments falling outside the building and thus reducing the damage to pedestrians, vehicles, public facilities, and objects outside the building. This can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a drone fire-extinguishing window-breaking projectile structure, including a window-breaking projectile with a conical front end, the middle and rear ends of the window-breaking projectile being slidably disposed in a cylindrical main body, and a heat-insulating base plate being connected to one end of the main body away from the window-breaking projectile via at least two connecting blocks, forming an airbag groove between the heat-insulating base plate and the end face of the main body, and an airbag being provided in the airbag groove to reduce the falling of glass fragments when the window is broken.

[0006] As a preferred technical solution of this utility model, a compressed gas tank that is fixedly connected to the rear end of the window-breaking bullet is slidably disposed inside the main body. An air outlet is provided on the side surface of the compressed gas tank, and an air inlet corresponding to the air outlet is provided on the airbag. The air inlet penetrates into the inner side of the main body.

[0007] As a preferred embodiment of this utility model, the outer diameter of the air inlet is slightly smaller than the inner diameter of the air outlet. A fixing ring is fixedly provided on the lower part of the inner surface of the air outlet, and a sliding ring is slidably provided on the lower part of the inner surface of the air outlet. A spring is provided between the sliding ring and the fixing ring. A T-shaped sliding member is provided on the inner surface of the sliding ring. The horizontal part of the sliding member is fixedly connected to the sliding ring, and a sealing plug is fixedly provided at the bottom of the vertical part of the sliding member. The sealing plug is located at the connection between the compressed gas tank and the air outlet, and the diameter of the sealing plug is larger than the diameter of the air outlet.

[0008] As a preferred embodiment of this utility model, a pressure ring corresponding to the sliding ring is fixedly provided on the inner surface of the air inlet.

[0009] As a preferred embodiment of this utility model, the outer surface of the compressed gas tank is uniformly provided with a plurality of sliding retaining rings, and the inner surface of the main body is uniformly provided with a plurality of fixed retaining rings that match the sliding retaining rings. The cross-sectional shapes of the sliding retaining rings and the fixed retaining rings are corresponding tooth shapes.

[0010] As a preferred embodiment of this invention, the side surface of the airbag is provided with a plurality of concentric circular pressure lines.

[0011] As a preferred embodiment of this utility model, the airbag has a notch corresponding to the connecting block.

[0012] As a preferred technical solution of this utility model, a number of arc-shaped locking blocks are provided on the outer side of the airbag groove, and the arc-shaped locking blocks, together with the connecting blocks, wrap the airbag in the airbag groove in the contracted state.

[0013] As a preferred embodiment of this invention, the outer surface of the airbag is coated with a silicone adhesive layer.

[0014] Compared with the prior art, the beneficial effects of this utility model are: by setting an airbag that can be deployed when the window-breaking projectile breaks the window, the airbag can wrap the broken glass fragments and carry them into the building along with the window-breaking projectile, reducing the amount of glass fragments falling outside the building, thereby reducing the damage and destruction to pedestrians, vehicles, public facilities, and objects outside the building, improving the safety factor of the window-breaking process, and reducing secondary disasters caused by fire. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a side view of the structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0018] Figure 4 This is a schematic diagram of the internal structure of the compressed gas tank of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the airbag after deployment.

[0020] In the diagram: 1 Main body, 2 Window breaking bullet, 3 Heat insulation base plate, 4 Airbag groove, 5 Connecting block, 6 Airbag, 7 Compressed gas tank, 8 Fixed retaining ring, 9 Sliding retaining ring, 10 Air outlet, 11 Air inlet, 12 Pressure line, 13 Pressure ring, 14 Fixed ring, 15 Sliding ring, 16 Spring, 17 Sliding part, 18 Sealing plug, 19 Arc-shaped retaining block. Detailed Implementation

[0021] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-5 This utility model provides a technical solution: a drone fire-fighting window-breaking projectile structure, including a window-breaking projectile 2 with a conical front end. The conical front end design of the window-breaking projectile 2 can better penetrate glass and improve the success rate of breaking windows.

[0023] The middle and rear ends of the window-breaking projectile 2 are slidably disposed inside the cylindrical body 1. At least two connecting blocks 5 connect the end of the body 1 away from the window-breaking projectile 2 to a heat-insulating base plate 3. The heat-insulating base plate 3 is made of heat-insulating material and is used to isolate the instantaneous high temperature generated when the window-breaking projectile is launched by gunpowder.

[0024] An airbag groove 4 is formed between the heat insulation base plate 3 and the end face of the main body 1. An airbag 6 is installed in the airbag groove 4 to reduce the falling of glass fragments when the window is broken. The airbag 6 can be made of high-strength fiber materials such as polyamide (PA66) or polyester fiber (PET), and the surface is coated with polyurethane (TPU) or silicone coating to improve the overall quality of the airbag 6.

[0025] By incorporating an airbag 6, which deploys when the window-breaking projectile breaks a window, the airbag encapsulates the shattered glass fragments and carries them into the building along with the window-breaking projectile 2. This reduces the amount of glass fragments falling outside the building, thereby minimizing damage to pedestrians, vehicles, public facilities, and objects outside the building. It also improves the safety of the window-breaking process and reduces secondary disasters caused by fire.

[0026] In a preferred embodiment, a compressed gas tank 7 is slidably disposed within the main body 1 and fixedly connected to the rear end of the window-breaking projectile 2. The compressed gas tank 7 can be filled with compressed nitrogen or other non-combustible and inactive gases. An outlet 10 is provided on the side surface of the compressed gas tank 7, and an inlet 11 corresponding to the outlet 10 is provided on the airbag 6, extending into the inner side of the main body 1. The compressed gas tank 7 provides the power source for the deployment of the airbag 6. When the window-breaking projectile 2 breaks the window, the gas in the compressed gas tank 7 enters the airbag 6 through the outlet 10 and the inlet 11, causing the airbag 6 to rapidly expand and deploy, thus enveloping the glass fragments. This ensures that the airbag 6 can deploy promptly and effectively upon breaking the window, improving the ability to handle glass fragments and better reducing the safety hazards caused by falling glass fragments.

[0027] In a preferred embodiment, the outer diameter of the air inlet 11 is slightly smaller than the inner diameter of the air outlet 10. A fixing ring 14 is fixedly installed on the lower part of the inner surface of the air outlet 10, and a sliding ring 15 is slidably installed on the upper part of the inner surface of the air outlet 10. A spring 16 is installed between the sliding ring 15 and the fixing ring 14. A T-shaped sliding member 17 is installed on the inner surface of the sliding ring 15. The horizontal part of the sliding member 17 is fixedly connected to the sliding ring 15, and a sealing plug 18 is fixedly installed at the bottom of the vertical part of the sliding member 17. The sealing plug 18 is located at the connection between the compressed gas tank 7 and the air outlet 10, and the diameter of the sealing plug 18 is larger than the diameter of the air outlet 10. When the compressed gas tank 7 is not triggered, the sealing plug 18 seals the air outlet 10 under the elastic force of the spring 16 and the thrust of the high-pressure gas, preventing gas leakage. When the window-breaking bullet 2 hits the glass, the compressed gas tank 7 slides inward, the air inlet 11 enters the air outlet 10, and the edge of the air inlet 11 contacts the sliding ring 15. The sliding ring 15 drives the sliding member 17 to move inward to the compressed gas tank 7, thereby pushing the sealing plug 18 away from the air outlet 10, so that the gas can be smoothly released into the airbag 6.

[0028] This sealing and opening mechanism ensures that the gas will not leak under normal circumstances and will only be released when the window is broken, which improves the reliability and safety of the airbag 6 deployment and avoids gas waste and accidental triggering.

[0029] In a further preferred embodiment, a pressure ring 13 corresponding to the sliding ring 15 is fixedly provided on the inner surface of the air inlet 11. The pressure ring 13 can ensure the pushing of the sliding ring 15, making the airbag 6 deploy more stably.

[0030] Optionally, a sealing ring is provided between the outer side of the air inlet 11 and the inner side of the air outlet 10. After the air inlet 11 enters the air outlet 10, it can play a good sealing role, preventing high-pressure gas from escaping from the gap between the outer side of the air inlet 11 and the inner side of the air outlet 10, thus ensuring the smooth deployment of the airbag after the window is broken.

[0031] In a preferred embodiment, the outer surface of the compressed gas tank 7 is uniformly provided with a plurality of sliding retaining rings 9, and the inner surface of the main body 1 is uniformly provided with a plurality of fixed retaining rings 8 that match the sliding retaining rings 9. The cross-sectional shapes of the sliding retaining rings 9 and the fixed retaining rings 8 are corresponding tooth shapes, i.e., right-angled triangles or right-angled trapezoids. When the window-breaking projectile 2 breaks the window, it moves the compressed gas tank 7 towards the inside of the main body 1. Both the sliding retaining rings 9 and the fixed retaining rings 8 are elastic, and their opposing inclined surfaces are in contact. During sliding, they can easily move inward. After moving, their contact surfaces become the straight surfaces, which locks the sliding retaining rings 9 and the fixed retaining rings 8, fixing the position of the compressed gas tank 7 and preventing it from moving forward and causing the air outlet 10 to close, further ensuring the deployment of the airbag 6.

[0032] Optionally, the side surface of the airbag 6 is provided with multiple concentric circular pressure lines 12. The circular pressure lines 12 enable the airbag 6 to expand more evenly during deployment, guiding it to unfold into a flat disc along the creases to better enclose glass fragments. Simultaneously, the pressure lines 12 also increase the structural strength of the airbag 6, preventing over-inflation or rupture during deployment. This improves the deployment quality and service life of the airbag 6, enabling it to more effectively reduce glass fragment falling and enhancing the stability and safety of the entire device.

[0033] Optionally, the airbag 6 is provided with a notch corresponding to the connecting block 5, which can reduce the impact of the connecting block 5 on the airbag 6 when it is deployed. When deployed, the airbag 6 consists of two semicircles with their outer sides not connected.

[0034] Optionally, several arc-shaped locking blocks 19 are provided on the outer side of the airbag groove 4. These arc-shaped locking blocks 19, in conjunction with the connecting block 5, enclose the airbag 6 in its contracted state within the airbag groove 4. The arc-shaped locking blocks 19 and the connecting block 5 cooperate to fix and protect the airbag 6 in its contracted state, preventing it from loosening or being damaged by external forces when not in use. This ensures that the airbag 6 remains in a good stored state when not in use, avoiding damage during transportation or storage, guaranteeing the integrity and reliability of the airbag 6, and extending the service life of the device.

[0035] Optionally, the outer surface of the airbag 6 is coated with a silicone adhesive layer. The silicone adhesive layer has a certain degree of adhesion, enabling it to adhere the glass fragments to the surface of the airbag 6 when it comes into contact with the glass fragments after deployment, further preventing the glass fragments from falling. This enhances the airbag 6's ability to hold the glass fragments in place, further reducing the risk of glass fragments falling and improving the safety and reliability of fire extinguishing by breaking windows. Simultaneously, the silicone adhesive layer also has a certain degree of wear resistance and weather resistance, extending the service life of the airbag 6.

[0036] The parts not disclosed in this utility model are all prior art, and their specific structures, materials, and working principles will not be described in detail. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A UAV fire extinguishing window breaking projectile structure, comprising a conical nose (2) at the front end, characterized in that: The middle and rear ends of the window-breaking bullet (2) are slidably disposed inside the cylindrical body (1). The end of the body (1) away from the window-breaking bullet (2) is connected to a heat-insulating base plate (3) through at least two connecting blocks (5). An airbag groove (4) is formed between the heat-insulating base plate (3) and the end face of the body (1). An airbag (6) is provided in the airbag groove (4) to reduce the falling of glass fragments when the window is broken.

2. The unmanned aerial vehicle fire extinguishing break window bullet structure according to claim 1, characterized in that: The main body (1) is slidably provided with a compressed gas tank (7) that is fixedly connected to the rear end of the window-breaking bullet (2). The side surface of the compressed gas tank (7) is provided with an air outlet (10). The airbag (6) is provided with an air inlet (11) corresponding to the air outlet (10). The air inlet (11) penetrates into the inside of the main body (1).

3. The unmanned aerial vehicle fire-extinguishing break window bullet structure according to claim 2, characterized in that: The outer diameter of the air inlet (11) is slightly smaller than the inner diameter of the air outlet (10). A fixed ring (14) is fixedly provided on the lower part of the inner surface of the air outlet (10). A sliding ring (15) is slidably provided on the lower part of the inner surface of the air outlet (10). A spring (16) is provided between the sliding ring (15) and the fixed ring (14). A T-shaped sliding member (17) is provided on the inner surface of the sliding ring (15). The horizontal part of the sliding member (17) is fixedly connected to the sliding ring (15). A sealing plug (18) is fixedly provided at the bottom of the vertical part of the sliding member (17). The sealing plug (18) is provided at the connection between the compressed gas tank (7) and the air outlet (10), and the diameter of the sealing plug (18) is larger than the diameter of the air outlet (10).

4. The unmanned aerial vehicle fire extinguishing break window bullet structure according to claim 3, characterized in that: The inner surface of the air inlet (11) is fixedly provided with a pressure ring (13) corresponding to the sliding ring (15).

5. The unmanned aerial vehicle fire-extinguishing break window bullet structure according to claim 2, characterized in that: The outer surface of the compressed gas tank (7) is uniformly provided with a number of sliding retaining rings (9), and the inner surface of the main body (1) is uniformly provided with a number of fixed retaining rings (8) that match the sliding retaining rings (9). The cross-sectional shapes of the sliding retaining rings (9) and the fixed retaining rings (8) are corresponding tooth shapes.

6. The unmanned aerial vehicle fire-extinguishing break window bullet structure according to claim 1, characterized in that: The side surface of the airbag (6) is provided with a plurality of concentric circular pressure lines (12).

7. The unmanned aerial vehicle fire-extinguishing break window bullet structure according to claim 1, characterized in that: The airbag (6) has a notch corresponding to the connecting block (5).

8. The structure of a UAV fire-extinguishing window-breaking projectile according to claim 7, characterized in that: Several arc-shaped locking blocks (19) are provided on the outside of the airbag groove (4). The arc-shaped locking blocks (19) cooperate with the connecting block (5) to wrap the airbag (6) in the airbag groove (4) in the contracted state.

9. The unmanned aerial vehicle fire-extinguishing break window bullet structure according to claim 1, characterized in that: The outer surface of the airbag (6) is coated with a silicone adhesive layer.

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