Fire detection and extinguishing bomb launcher

By intelligently identifying fires and accurately launching dry water extinguishing agents using a fire detection and explosion extinguishing grenade launcher, the problem of low fire extinguishing efficiency of existing fire-fighting equipment in special environments is solved, achieving unmanned and highly efficient fire extinguishing results.

CN119607473BActive Publication Date: 2025-10-28ANHUI UNIV OF SCI & TECH
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Patent Information

Application Number
CN202411726116.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-11-28
Publication Date
2025-10-28
Estimated Expiration
2044-11-28

AI Technical Summary

Technical Problem

Existing fire-fighting equipment is insufficient for effectively monitoring fires, especially in special environments where fire-fighting efficiency is low and firefighters are vulnerable to injury.

Method used

A fire detection and explosive fire extinguishing grenade launching device was designed, including a support component, a grenade storage component, a fire detection component, and a launching component. It can intelligently identify fires and accurately turn to launch the fire extinguishing component, using dry water extinguishing agent for targeted fire extinguishing, avoiding human intervention.

Benefits of technology

It achieves intelligent, precise, and efficient unmanned firefighting, reducing the burden on firefighters, improving firefighting efficiency, and preventing firefighters from being harmed in toxic and hazardous environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention relates to the field of fire extinguishing equipment and discloses a fire detection explosive fire extinguishing grenade launching device. The fire detection explosive fire extinguishing grenade launching device includes a support assembly (1), a grenade storage assembly (2), a fire detection component (3), and a launching assembly (4). The launching assembly (4) is rotatably mounted on the support assembly (1) and connected to the grenade storage assembly (2) to fill the fire extinguishing component (44). The fire detection component (3) is mounted on the launching assembly (4) and configured to control the launching assembly (4) to rotate and launch the fire extinguishing component (44). This fire detection explosive fire extinguishing grenade launching device is intelligent and convenient, capable of targeted, continuous, unmanned explosive fire extinguishing for different fire situations, with precise and efficient fire extinguishing, and also avoids injury to firefighters fighting fires in special fire scenes. It is safe, stable, and reliable.
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Description

Technical Field

[0001] This invention relates to the field of fire extinguishing equipment technology, specifically to a fire detection and explosion extinguishing projectile launching device. Background Technology

[0002] With the continuous advancement of industrialization and urbanization, high-rise and super high-rise buildings, forests, and factories in cities are prone to fires, causing great harm to life and property. Due to the diverse scenarios, high frequency, and significant damage of modern fires, they have become a crucial issue for fire safety in recent years. Specifically, existing fire characteristics include: 1. Complex origins and diverse ignition methods, leading to large-scale fires; 2. Everyday items, wood, and hazardous chemicals are highly flammable, easily causing severe disasters once ignited; 3. Existing firefighting equipment is insufficient for monitoring fires, let alone effectively preventing their evolution, and is difficult to extinguish quickly and efficiently. Furthermore, for fires in special environments involving radiation or toxic substances, traditional firefighting methods often require firefighters to enter the environment, which can easily cause casualties and lead to even greater fire damage. Summary of the Invention

[0003] The purpose of this invention is to overcome the problems of difficulty in monitoring fires, difficulty in extinguishing fires in special environments, and low fire extinguishing efficiency in existing technologies, and to provide a fire identification explosive fire extinguishing grenade launching device. This fire identification explosive fire extinguishing grenade launching device is intelligent and convenient, and can carry out targeted, continuous, unmanned explosive fire extinguishing for different fires. It extinguishes fires accurately and efficiently, and also avoids injury to firefighters fighting fires in special fire scenes. It is safe, stable, and reliable.

[0004] To achieve the above objectives, the present invention provides a fire detection explosive fire extinguishing grenade launching device, which includes a support assembly, a grenade storage assembly, a fire detection assembly, and a launching assembly. The launching assembly is rotatably mounted on the support assembly and connected to the grenade storage assembly to fill the fire extinguishing assembly. The fire detection assembly is mounted on the launching assembly and is configured to control the launching assembly to rotate and launch the fire extinguishing assembly.

[0005] Preferably, the support assembly has multiple threaded holes for installation and fixing, and a ball joint support is formed at the bottom center of the support assembly.

[0006] Preferably, the launching assembly includes a launching tube, the rear end of which forms a ball joint that can be connected to a ball joint support, the front end of which extends outward, and a launching cavity is formed inside the launching tube near the ball joint support; wherein, a steering cavity is provided on both side walls and the bottom wall of the launching cavity, a support rod extends from the ball joint support, the end of the support rod is connected to a steering motor, a steering drive wheel is sleeved on the rotating shaft of the steering motor, a steering drive wheel cavity is sleeved outside the steering drive wheel, a threaded rod has one end passing through the steering drive wheel cavity and meshing with the steering drive wheel, and the other end forming a universal ball and extending into the steering cavity.

[0007] Preferably, the ammunition storage assembly includes an ammunition storage tube located above the launching assembly, the ammunition storage tube being partially embedded in the support assembly, and connected to the launching cavity via a bellows.

[0008] Preferably, the launching assembly further includes a power component disposed in the ball joint and a projectile plate disposed in the launching cavity. The projectile plate is connected to the power component via a pull rod. A spring is sleeved on the outside of the pull rod, and the spring abuts against the inner side of the projectile plate. The fire extinguishing assembly abuts against the outer side of the projectile plate, so that the power component can control the projectile plate to launch and activate the fire extinguishing assembly.

[0009] Preferably, a pair of latches are provided on the outer wall of the launch tube near the launch chamber to lock the fire extinguishing component in a ready-to-launch state.

[0010] Preferably, the fire detection component includes an infrared thermometer and a smoke detector mounted on a pair of clips, and a thermal imager mounted at the front end of the transmitting tube; wherein,

[0011] The smoke detector is used to detect smoke, while the infrared thermometer and thermal imager are used to detect the specific location of the flame and are configured to feed the signal back to the steering motor, which in turn controls the emitter tube to rotate toward the flame via a threaded rod.

[0012] Preferably, the fire extinguishing assembly includes a spherical polyethylene shell and an explosive located at the center inside the polyethylene shell. A fuse is provided between the explosive and the polyethylene shell, and the remaining space inside the polyethylene shell is filled with a dry water extinguishing agent.

[0013] Preferably, when the power component pulls the lever to compress the spring and the ejector plate, the fire extinguishing component located in the ammunition storage tube can enter the firing chamber through the bellows.

[0014] Preferably, the threaded hole includes one located at the center of the support assembly and a plurality of holes evenly distributed circumferentially.

[0015] According to the above technical solution, this invention steers the launching component to the support component and connects it to the ammunition storage component to fill the fire extinguishing component. A fire sensing component is mounted on the launching component and configured to control the launching component's direction and launch the fire extinguishing component. In this way, when the fire sensing component detects a fire, it drives the launching component to turn and aim at the flames, and then the launching component launches the fire extinguishing component to the area to be extinguished. After one fire extinguishing component is fired, other fire extinguishing components stored in the ammunition storage component will sequentially enter the launching component, which will then continue firing for continuous fire extinguishing until the fire is extinguished. The entire process is intelligent, efficient, and precise. The continuous, cyclical firing greatly reduces the workload of firefighters and allows for remote, unmanned firefighting in special fire environments such as toxic and hazardous areas, avoiding the injuries that firefighters are prone to when entering such fire environments, making it safer and more reliable. Furthermore, different types of fire extinguishing components can be selected for different fire types, enabling targeted firefighting operations and further improving firefighting efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the fire identification explosive fire extinguishing projectile launching device provided by the present invention;

[0017] Figure 2 This is a cross-sectional view of the fire identification explosive fire extinguishing projectile launching device provided according to the present invention;

[0018] Figure 3 This is a schematic diagram of the launching component and the fire detection component in the fire identification explosive fire extinguishing projectile launching device provided by the present invention;

[0019] Figure 4 This is a schematic diagram of the internal structure of the launching component in the fire identification explosive fire extinguishing projectile launching device provided by the present invention;

[0020] Figure 5 This is a schematic diagram of the fire extinguishing component in the fire identification explosive fire extinguishing grenade launching device provided by the present invention.

[0021] Explanation of reference numerals in the attached figures

[0022] 1-Support assembly 2-Ammunition storage assembly

[0023] 3-Fire Sensing Components 4-Launch Components

[0024] 12-Threaded hole 13-Spherical hinge support

[0025] 21-Ammunition storage tube 22-Corrugated tube

[0026] 31-Infrared thermometer; 32-Smoke alarm

[0027] 33-Thermal Imager 41-Emitting Tube

[0028] 42-Emission cavity 43-Spherical hinge

[0029] 44-Fire Extinguishing Components 411-Snap-on

[0030] 421-Power component 422-Tie rod

[0031] 423-Spring plate 424-Spring

[0032] 441 - Polyethylene shell; 442 - Fuze

[0033] 443 - Explosive; 444 - Dry water extinguishing agent

[0034] 51-Support rod 52-Steering motor

[0035] 53-Threaded rod 54-Steering drive wheel

[0036] 55-Steering cavity Detailed Implementation

[0037] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0038] In this invention, unless otherwise stated, directional terms such as "front," "back," "middle," "inner," and "outer" in the terminology represent only the orientation of the term in its normal use or are common terms understood by those skilled in the art, and should not be regarded as limitations on the term.

[0039] See Figures 1 to 5 The present invention provides a fire detection explosive fire extinguishing grenade launching device, which includes a support component 1, a grenade storage component 2, a fire detection component 3 and a launching component 4. The launching component 4 is rotatably mounted on the support component 1 and connected to the grenade storage component 2 to fill the fire extinguishing component 44. The fire detection component 3 is mounted on the launching component 4 and is configured to control the launching component 4 to rotate and launch the fire extinguishing component 44.

[0040] Through the above technical solution, the launching component 4 is rotatably mounted on the supporting component 1 and connected to the ammunition storage component 2 to fill the fire extinguishing component 44. The fire sensing component 3 is mounted on the launching component 4 and configured to control the launching component 4 to turn and launch the fire extinguishing component 44. In this way, when the fire sensing component 3 detects a fire, it can drive the launching component 4 to turn and aim at the flames, and then the launching component 4 launches the fire extinguishing component 44 to the area to be extinguished. After one fire extinguishing component 44 is fired, other fire extinguishing components 44 stored in the ammunition storage component 2 will sequentially enter the launching component 4, and the launching component 4 will continue to fire continuously to extinguish the fire until it is extinguished. The entire process is intelligent, efficient, and precise. The continuous cyclical firing greatly reduces the workload of firefighters and allows for remote, unmanned firefighting in special fire scenes such as toxic and hazardous areas, avoiding the risk of injury to firefighters entering such fire scenes, making it safer and more reliable. At the same time, different types of fire extinguishing components 44 can be selected for different fire types, enabling targeted firefighting operations and further improving firefighting efficiency.

[0041] In this embodiment, to facilitate fixing the fire detection explosive extinguishing grenade launcher to a wall or a stable location, preferably, the support assembly 1 has multiple threaded holes 12 for installation and fixing, and a ball joint support 13 is formed at the center of the bottom of the support assembly 1. Furthermore, to improve the stability after fixing and ensure the accuracy of launching the fire extinguishing assembly 44, it is further preferred that the threaded hole 12 includes one located at the center of the support assembly 1 and multiple holes evenly distributed circumferentially.

[0042] To facilitate the installation and flexible steering of the launching assembly 4, the launching assembly 4 preferably includes a launching tube 41. The rear end of the launching tube 41 has a ball joint 43 that can be connected to the ball joint support 13. The front end extends outward, and a launching cavity 42 is formed inside the launching tube 41 near the ball joint support 13. The launching cavity 42 has steering cavities 55 on both side walls and the bottom wall. A support rod 51 extends from the ball joint support 13, and a steering motor 52 is connected to the end of the support rod 51. A steering drive wheel 54 is fitted onto the rotating shaft of the steering motor 52. A steering drive wheel cavity is fitted outside the steering drive wheel 54. One end of a threaded rod 53 passes through the steering drive wheel cavity and meshes with the steering drive wheel 54, while the other end forms a swivel ball and extends into the steering cavity 55. Thus, when it is necessary to adjust the left or right rotation of the launch tube 41, the steering motors 52 located on the left and right side walls can be activated. When the steering motors 52 rotate, the steering drive wheel 54 meshes with the threaded rod 53, which can drive the threaded rod 53 to extend or shorten. During the extension or shortening of the threaded rod 53, the force of the universal ball at one end can push or pull the launch tube 41, thereby achieving the left or right rotation of the launch tube 41. Similarly, if it is necessary to raise or lower the launch tube 41, the steering motor 52 located on the bottom wall of the launch cavity 42 can be activated. The forward and reverse rotation of the steering motor 52 can extend or retract the corresponding threaded rod 53, thereby achieving the effect of raising or lowering the launch tube 41.

[0043] In this embodiment, in order to achieve long-term and continuous firing of the fire extinguishing component 44, the ammunition storage component 2 preferably includes an ammunition storage tube 21 located above the firing component 4. The ammunition storage tube 21 is partially embedded in the support component 1 and is connected to the firing cavity 42 through a corrugated pipe 22.

[0044] In this embodiment, the launching assembly 4 further includes a power component 421 disposed within the ball joint 43 and a projectile plate 423 disposed within the launching chamber 42. The projectile plate 423 is connected to the power component 421 via a pull rod 422. A spring 424 is sleeved on the outside of the pull rod 422, and the spring 424 abuts against the inner side of the projectile plate 423. The fire extinguishing assembly 44 abuts against the outer side of the projectile plate 423, so that the power component 421 can control the projectile plate 423 to eject and activate the fire extinguishing assembly 44. At the same time, when the power component 421 pulls the pull rod 422 to compress the spring 424 and the projectile plate 423, the fire extinguishing assembly 44 located in the ammunition storage tube 21 can enter the launching chamber 42 along the bellows 22, realizing safe, stable, and sustainable cyclic firing of the fire extinguishing projectile without relying on propellant.

[0045] In one specific embodiment, the pull rod 422 can be a threaded rod, and the power component 421 can be a drive wheel driven by a motor. The drive wheel meshes with the threaded rod. When the drive wheel rotates, the threaded rod retracts due to the meshing action, and the spring plate 423 connected to the threaded rod also retracts. After the spring plate 423 retracts, it compresses the spring 424, causing the spring 424 to be gradually compressed. When it is necessary to fire, the drive wheel is disengaged from the threaded rod, and the compressed spring 424 rebounds instantly and finally achieves firing.

[0046] In actual use of the fire identification explosion extinguishing grenade launching device, in order to prevent the extinguishing component 44 after being loaded from rolling and detaching from the ejector plate 423 in the launching chamber 42, which would prevent the ejector plate 423 from ejecting the extinguishing component 44 during launch, preferably, a pair of latches 411 are provided on the outer wall of the launching tube 41 near the launching chamber 42 to hold the extinguishing component 44 in a ready-to-eject and ignite state.

[0047] In addition, the fire detection component 3 includes an infrared thermometer 31 and a smoke detector 32 mounted on a pair of clips 411, and a thermal imager 33 mounted at the front end of the transmitting tube 41; wherein,

[0048] The smoke detector 32 is used to detect smoke, the infrared thermometer 31 and the thermal imager 33 are used to detect the specific location of the flame, and are configured to feed the signal back to the steering motor 52, which controls the emitter 41 to rotate toward the flame via the threaded rod 53.

[0049] Furthermore, the aforementioned fire extinguishing component 44 includes a spherical polyethylene shell 441 and an explosive 443 located at the center of the polyethylene shell 441. A fuse 442 connects the explosive 443 to the polyethylene shell 441, and the remaining space inside the polyethylene shell 441 is filled with a dry-water extinguishing agent 444. This dry-water extinguishing agent 444 is a modifiable dry-water extinguishing agent, which can be modified to form dry-water extinguishing bombs of different materials, thereby enabling targeted explosive fire extinguishing.

[0050] In summary, when a fire occurs, the fire identification explosion extinguishing grenade launching device can first intelligently identify the fire: when a fire occurs, it is usually accompanied by smoke. First, the smoke alarm 32 detects the smoke, then the thermal imager 33 identifies the location of the fire and transmits the signal. The launching device can transmit power to the ball joint 43 through the power component 421 to make it rotate, thereby better aiming at the fire and collecting more fire information. Then, the infrared thermometer 31 is used to measure the temperature of the fire and accurately locate the fire, which can determine the launch and quantity of the extinguishing components 44.

[0051] Secondly, the fire detection explosive extinguishing grenade launcher can detonate and extinguish fires: the extinguishing component 44 is held in place by two latches 411 on the inner wall of the launch tube 41. After intelligent fire detection, a feedback signal controls the latches 411 to release the spring 424, releasing elastic potential energy. Then, the launch plate 423 pushes the launcher to launch the extinguishing component 44 (i.e., the explosive extinguishing grenade). When the extinguishing component 44 reaches the fire scene, the fuse 442 senses the flames and detonates the spherical explosive charge 443, which can detonate and scatter the dry water extinguishing agent 444 over a larger area. The dry water extinguishing agent 444 uses both physical and chemical extinguishing mechanisms to extinguish fires. In one specific embodiment, the dry water extinguishing agent 444 is prepared by mixing hydrophobic SiO2 and salt solution in a certain proportion and stirring at high speed. The specific preparation method is as follows:

[0052] Step 1: Add 5% NaCl to deionized water and wait for the solute to completely dissolve;

[0053] Step 2: Weigh the hydrophobic SiO2 and NaCl solution in a mass ratio of 1:10 using an electronic weighing balance, and mix them in a high-speed stirrer at 6000 r / min for 2 min.

[0054] The resulting dry-water extinguishing agent 444 has the advantages of being green, environmentally friendly, and pollution-free. Furthermore, the dry-water agent can be modified for different fire extinguishing scenarios to achieve superior extinguishing effects. For example, a workshop producing H2 can use a KOH dry-water extinguishing agent, as KOH can inhibit H2 explosions, while a factory with a large amount of wood can use an ammonium dihydrogen phosphate dry-water extinguishing agent.

[0055] When dry-water extinguishing agents are used, the solution in the heated extinguishing agent is released, lowering the temperature of the burning material and preventing it from reaching its ignition point. SiO2 adheres to the surface of the burning material, isolating it from oxygen. The sodium salt solution within the core can directly interact with the flame. Simultaneously, it also possesses a shock wave extinguishing mechanism, referring to the instantaneous generation of high-temperature, high-pressure gas during an explosive detonation. This gas rapidly expands, exerting a strong mechanical force on the flame and combustible material, destroying the surface combustion layer and terminating combustion. Therefore, the explosive dispersal of dry-water extinguishing agent 444 exhibits both physical and chemical effects.

[0056] In addition, the fire detection explosion extinguishing grenade launching device can also reassess after fire extinguishing: after a fire is extinguished, the smoke alarm 32, infrared thermometer 31, and thermal imager 33 can collect data on the fire scene after the fire is extinguished and assess the explosion extinguishing. If it is necessary to launch extinguishing grenades again, the fire can be extinguished more quickly and effectively.

[0057] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings; however, the present invention is not limited thereto. Within the scope of the inventive concept, various simple modifications can be made to the technical solutions of the present invention, including combinations of various specific technical features in any suitable manner. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately. However, these simple modifications and combinations should also be considered as the content disclosed in the present invention and are all within the protection scope of the present invention.

Claims

1. A fire detection and explosive fire extinguishing grenade launching device, characterized in that, The fire detection explosive fire extinguishing grenade launching device includes a support assembly (1), a grenade storage assembly (2), a fire detection assembly (3), and a launching assembly (4). The launching assembly (4) is rotatably mounted on the support assembly (1) and connected to the grenade storage assembly (2) to fill the fire extinguishing assembly (44). The fire detection assembly (3) is mounted on the launching assembly (4) and is configured to control the launching assembly (4) to turn and launch the fire extinguishing assembly (44). The support assembly (1) has multiple threaded holes (12) for installation and fixing, and a ball joint support (13) is formed at the bottom center of the support assembly (1). The launching assembly (4) includes a launching tube (41), the rear end of which forms a ball joint (43) that can be connected to the ball joint support (13), the front end of which extends outward, and the interior of the launching tube (41) near the ball joint support (13) forms a launching cavity (42); wherein, the two side walls and the bottom wall of the launching cavity (42) are provided with a steering cavity (55), a support rod (51) extends from the ball joint support (13), the end of the support rod (51) is connected to a steering motor (52), a steering drive wheel (54) is sleeved on the rotating shaft of the steering motor (52), a steering drive wheel cavity is sleeved on the outside of the steering drive wheel (54), one end of a threaded rod (53) passes through the steering drive wheel cavity and meshes with the steering drive wheel (54), and the other end forms a universal ball and extends into the steering cavity (55).

2. The fire detection and extinguishing bomb launching device according to claim 1, characterized in that, The ammunition storage assembly (2) includes an ammunition storage tube (21) located above the launch assembly (4). The ammunition storage tube (21) is partially embedded in the support assembly (1) and is connected to the launch cavity (42) via a bellows pipe (22).

3. The fire detection explosive extinguishing grenade launching device according to claim 2, characterized in that, The launching assembly (4) further includes a power component (421) disposed in the ball joint (43) and a spring plate (423) disposed in the launching cavity (42). The spring plate (423) is connected to the power component (421) via a pull rod (422). A spring (424) is sleeved on the outside of the pull rod (422). The spring (424) abuts against the inner side of the spring plate (423), and the fire extinguishing assembly (44) abuts against the outer side of the spring plate (423), so that the power component (421) can control the spring plate (423) to eject and activate the fire extinguishing assembly (44).

4. The fire detection explosive fire extinguishing grenade launching device according to claim 3, characterized in that, A pair of latches (411) are provided on the outer wall of the launching tube (41) near the launching cavity (42) to lock the fire extinguishing component (44) in a ready-to-launch state.

5. The fire detection explosive extinguishing grenade launching device according to claim 4, characterized in that, The fire detection component (3) includes an infrared thermometer (31) and a smoke alarm (32) mounted on a pair of clips (411), and a thermal imager (33) mounted at the front end of the transmitting tube (41); wherein, The smoke alarm (32) is used to detect smoke, the infrared thermometer (31) and the thermal imager (33) are used to detect the specific location of the flame, and are configured to feed the signal back to the steering motor (52) so that the threaded rod (53) controls the transmitter (41) to rotate toward the flame.

6. The fire detection explosive fire extinguishing grenade launching device according to claim 5, characterized in that, The fire extinguishing assembly (44) includes a spherical polyethylene shell (441) and an explosive (443) located at the center inside the polyethylene shell (441). A fuse (442) is connected between the explosive (443) and the polyethylene shell (441). The remaining space inside the polyethylene shell (441) is filled with a dry water extinguishing agent (444).

7. The fire detection explosive fire extinguishing grenade launching device according to claim 6, characterized in that, When the power component (421) pulls the lever (422) to compress the spring (424) and the spring plate (423), the fire extinguishing component (44) located in the ammunition storage tube (21) can enter the firing chamber (42) through the bellows (22).

8. The fire detection explosive extinguishing grenade launching device according to any one of claims 1-7, characterized in that, The threaded hole (12) includes one located at the center of the support assembly (1) and a plurality of holes evenly distributed circumferentially.

Citation Information

Patent Citations

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    CN114569914A

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