Dual control burst dispensing inflation extinguishing device

Abstract

The application relates to the technical field of fire extinguishing balls, and discloses an inflation and spraying type fire extinguishing device with double-control explosion and throwing, which comprises an inner sphere and an outer sphere, a connecting pipe is fixedly connected between the inner sphere and the outer sphere, the inner parts of the inner sphere and the outer sphere are respectively filled with outer-ring fire extinguishing agent and inner-ring fire extinguishing agent, and the inner parts of the inner sphere and the outer sphere are respectively provided with an explosion mechanism and an inflation mechanism. Through double-control driving control, the outer-ring fire extinguishing agent of the fire extinguishing device can be effectively controlled to be sprayed in a larger range under the driving of the explosion mechanism with large explosion power, the spraying range of the fire extinguishing agent is effectively increased, the inner-ring fire extinguishing agent is driven by the inflation mechanism to extinguish fire in a small range around the fire extinguishing device, the small-range fire extinguishing effect can be ensured, the spraying coverage and spraying uniformity of the fire extinguishing agent in different ranges can be ensured, and the fire extinguishing range and fire extinguishing effect of the fire extinguishing device can be effectively ensured.

Description

Technical Field

[0001] This invention relates to the field of fire extinguishing ball technology, specifically to a dual-control burst spray type fire extinguishing device. Background Technology

[0002] Fire extinguishing balls are a new type of fire extinguishing device. Compared to traditional handheld fire extinguishers or fire suppression systems that use water hoses, fire extinguishing balls offer a simpler operating method. When a localized fire occurs, the fire extinguishing ball can be thrown or rolled into the fire location. Upon contact with an open flame, the fire extinguishing fuse wrapped around the surface of the ball ignites, which then drives the core explosion device to automatically spray dry powder, achieving a rapid fire extinguishing effect.

[0003] Existing fire extinguishing balls typically consist of an outer foam shell, an internal driving medium, a fuse, and fire extinguishing dry powder. Therefore, when spraying the dry powder, uneven spraying of the fire extinguishing dry powder is prone to occur. The single-core expansion spraying method, if the amount of driving propellant is large, will easily cause the fire extinguishing dry powder to be sprayed over a long distance with less coverage in the vicinity. If the amount of driving propellant is low, the fire extinguishing coverage area will be small, and the fire extinguishing dry powder will be sprayed only through the outer foam layer and then through expansion and explosion. It is difficult to ensure the uniformity of the fire extinguishing dry powder spraying, thus affecting the effectiveness. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a dual-control burst spraying expansion spray fire extinguishing device, which effectively ensures coverage while guaranteeing uniform spraying of fire extinguishing dry powder.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A dual-control explosive spray fire extinguishing device includes an inner sphere and an outer sphere, with a connecting pipe fixedly connected between the inner and outer spheres. The inner and outer spheres are respectively filled with an outer ring fire extinguishing agent and an inner ring fire extinguishing agent. The inner and outer spheres are respectively equipped with a spraying mechanism and an expansion mechanism.

[0006] Preferably, the inner sphere is connected to the outside via a connecting pipe, the inner sphere and the connecting pipe constitute an outer spraying chamber, the outer ring of extinguishing agent is filled inside the outer spraying chamber, and a sealing strip for sealing the outer spraying is attached to the outer end of the connecting pipe.

[0007] Preferably, the outer sphere is bonded to the outer port of the connecting pipe, and an inner spraying cavity is formed between the inner sphere, the outer sphere, and the connecting pipe. The inner ring of extinguishing agent fills the interior of the inner spraying cavity. The sealing sheet and the outer surface of the outer sphere form a spherical surface. The sealing sheet and the outer sphere are covered with a wrapping layer, which is a flammable film. The wrapping layer provides all-around coverage of the outer sphere and the sealing sheet.

[0008] Preferably, the inner sphere and connecting tube are metal shells, and the outer sphere, wrapping layer and sealing sheet are made of materials including but not limited to polystyrene foam, polyurethane foam, fiber foam or plastic.

[0009] Preferably, at least six connecting tubes are provided, evenly distributed on the spherical surface of the inner sphere, and several spiral grooves are formed inside the connecting tubes.

[0010] Preferably, the ejection mechanism includes a drive core, and a positioning rope is fixedly connected to the outside of the drive core. The positioning rope is adhered to the inner surface of the inner sphere, and the positioning rope is used to fix and suspend the drive core at the center of the inner sphere. The drive core is configured as explosive gunpowder.

[0011] Preferably, the expansion mechanism includes an expansion airbag fixedly connected to the outer surface of the inner sphere, the expansion airbag being located inside the inner sphere and having at least one inflatable block, the inflatable block being filled with a gas generating agent, and an igniter being fixedly connected inside the inflatable block, the igniter being filled with an igniter.

[0012] Preferably, the gas generator includes, but is not limited to, sodium azide, potassium perchlorate, aluminum powder, and magnesium powder.

[0013] Preferably, the igniter includes an oxidizer and fuel.

[0014] Preferably, both the expansion mechanism and the ejection mechanism are provided with lead wires on their exteriors. The lead wires extend to the exterior of the outer sphere and are distributed in a cross shape or a star shape on the exterior of the outer sphere. The lead wires connect the igniter of the expansion mechanism and the drive core of the ejection mechanism.

[0015] Beneficial effects: 1. This dual-control, explosive, and dispersive expansion-type fire extinguishing device, by setting the explosive power of the expansion mechanism to be less than that of the ejection mechanism, allows the outer ring of the extinguishing agent to spray a wider area than the inner ring, driven by the expansion mechanism. Through dual-control operation, the outer ring of the extinguishing agent can be effectively controlled to spray a larger area under the powerful ejection mechanism, thus increasing the spray range. Simultaneously, the expansion mechanism drives the inner ring of the extinguishing agent to extinguish fires within a small area around the device, ensuring effective extinguishing in that specific area. This ensures consistent coverage and uniformity of the extinguishing agent spray across different areas, effectively guaranteeing the device's extinguishing range and effectiveness.

[0016] 2. This dual-control, explosive, and expanding spray fire extinguishing device controls the firing mechanism to be triggered faster than the expansion mechanism. When the firing mechanism is triggered, it drives the outer ring of extinguishing agent to spray out from the opening of the connecting pipe. Since the opening of the connecting pipe at the bottom faces downwards, the sprayed outer ring of extinguishing agent interacts with the ground. Under the push of the reaction force, it drives the inner sphere to move upward, increasing the height of the fire extinguishing device. Then, the expansion mechanism drives the inner ring of extinguishing agent to spray out. By increasing the height of the inner sphere, the spraying effect of the inner ring of extinguishing agent is increased. This allows the inner ring of extinguishing agent to reduce the impact of ground obstruction and to be sprayed more effectively and evenly around the inner sphere, thereby further improving the fire extinguishing effect of the device.

[0017] 3. This dual-control, explosive, and dispersive expansion spray fire extinguishing device, driven by the explosion of the core, sprays the outer ring of extinguishing agent through the connecting pipe. Because the connecting pipe has several spiral grooves, the outer ring of extinguishing agent, guided by these grooves, exits the pipe in a spiral shape. This spiral-shaped spray, under the centrifugal force, ensures uniform and dispersed spraying over a long distance, effectively guaranteeing the uniformity of the outer ring's spray and ensuring the device's fire extinguishing effect over such a wide area.

[0018] 4. This dual-control burst spray fire extinguishing device uses an inflatable bladder that, when inflated, covers the outer port of the connecting pipe, placing the connecting pipe inside the inflatable bladder. This protects the inner bladder and connecting pipe, preventing the inner bladder and connecting pipe from flying out and injuring people outside the device. Attached Figure Description

[0019] Figure 1 This is a partial cross-sectional schematic diagram showing the connection state of the inner sphere, outer sphere, and connecting pipe in the structure of the present invention; Figure 2 This is a schematic diagram showing the overall appearance of the structure and a half-section of the encapsulation layer of the present invention; Figure 3 This is a schematic diagram of the internal structure connections and distribution of the present invention; Figure 4 This is a half-sectional schematic diagram showing the connection state of the inner sphere, outer sphere, and connecting pipe in the structure of the present invention; Figure 5 This is a three-dimensional schematic diagram of the connection between the sphere and the connecting pipe within the structure of the present invention; Figure 6 This is a schematic diagram of the sphere inside the structure of the present invention; Figure 7 This is a schematic diagram of the structural expansion mechanism of the present invention; Figure 8 This is a schematic diagram of the outer sphere and external lead wire connection of the structure of the present invention; Figure 9 This is a half-sectional view of the spiral groove inside the connecting pipe of the present invention.

[0020] In the diagram: 1. Inner sphere; 2. Outer sphere; 3. Connecting pipe; 31. Spiral groove; 4. Encasing layer; 5. Sealing sheet; 6. Drive core; 61. Positioning rope; 7. Inflatable airbag; 71. Inflatable block; 72. Ignition device; 8. Lead wire; 9. Outer ring extinguishing agent; 10. Inner ring extinguishing agent. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example 1 Please see Figure 1 , Figure 3 , Figure 4 and Figure 5 A dual-control burst spray type fire extinguishing device includes an inner sphere 1 and an outer sphere 2, with a connecting pipe 3 fixedly connected between the inner sphere 1 and the outer sphere 2. The inner sphere 1 and the outer sphere 2 are respectively filled with an outer ring fire extinguishing agent 9 and an inner ring fire extinguishing agent 10. The inner sphere 1 and the outer sphere 2 are respectively provided with a spraying mechanism and an expansion mechanism.

[0023] refer to Figure 3 , Figure 5 and Figure 6 The inner sphere 1 is connected to the outside through the connecting pipe 3. The inner sphere 1 and the connecting pipe 3 constitute the outer spraying chamber. The outer ring fire extinguishing agent 9 is filled inside the outer spraying chamber. The outer end of the connecting pipe 3 is attached with a sealing plate 5 for sealing the outer spraying.

[0024] refer to Figure 1 Figure 3 ,and Figure 4 The outer sphere 2 is bonded to the outer port of the connecting pipe 3. An inner spraying cavity is constructed between the inner sphere 1, the outer sphere 2 and the connecting pipe 3. The inner ring of extinguishing agent 10 is filled inside the inner spraying cavity.

[0025] refer to Figure 2 The outer surfaces of the sealing sheet 5 and the outer sphere 2 form a spherical surface. The sealing sheet 5 and the outer sphere 2 are covered by a wrapping layer 4, which is made of flammable film. The wrapping layer 4 provides all-round coverage of the outer sphere 2 and the sealing sheet 5.

[0026] refer to Figure 2 The fire extinguishing device is spherical in shape, which makes it easy to throw or roll when fire needs to be extinguished. When in use, the fire extinguishing device is placed at the location of the fire. The external open flame will trigger the ejection mechanism and the expansion mechanism. The ejection mechanism is used to spray the outer ring fire extinguishing agent 9 inside the outer spray chamber through several connecting pipes 3. The expansion mechanism is used to spray the inner ring fire extinguishing agent 10 filled in the inner spray chamber.

[0027] It should be noted that the explosive power of the expansion mechanism is set to be less than that of the ejection mechanism. The spraying range of the outer ring extinguishing agent 9 driven by the ejection mechanism is greater than that of the inner ring extinguishing agent 10 driven by the expansion mechanism. Through dual-control drive, the outer ring extinguishing agent 9 of the fire extinguishing device can be effectively controlled to spray a larger area under the drive of the ejection mechanism with greater explosive power, effectively increasing the spraying range of the extinguishing agent. At the same time, the inner ring extinguishing agent 10 is driven by the expansion mechanism to extinguish fire in a small area around the device, which can also ensure the extinguishing effect in a small area. Thus, the extinguishing agent can ensure the coverage and uniformity of the spray in different areas, effectively ensuring the extinguishing range and extinguishing effect of the device.

[0028] In an optional embodiment: the inner sphere 1 and the connecting tube 3 are metal shells, and the outer sphere 2, the wrapping layer 4 and the sealing sheet 5 are made of materials including but not limited to polystyrene foam, polyurethane foam, fiber foam or plastic.

[0029] It should be noted that when the firing mechanism drives the inner ring extinguishing agent 10 to spray, it sprays through the connecting pipe 3. The spraying direction depends on the orientation of several connecting pipes 3. Therefore, at least six connecting pipes 3 are provided to ensure that the extinguishing agent can be sprayed in different directional ranges of the device. During spraying, the firing mechanism drives the outer ring extinguishing agent 9 to break the sealing plate 5 and spray.

[0030] When the inner ring is sprayed, the expansion mechanism drives the inner ring extinguishing agent 10 to break the outer sphere 2, and the inner ring extinguishing agent 10 inside the inner spraying chamber breaks through the outer sphere 2 to be sprayed.

[0031] When not in use, the wrapping layer 4 covers the outside of the outer sphere 2 to protect the sealing sheet 5 and prevent the sealing sheet 5 from being damaged, which could lead to leakage of the outer ring extinguishing agent 9.

[0032] It should be noted that the triggering time of the ejection mechanism is faster than that of the expansion mechanism. The ejection mechanism is controlled before the expansion mechanism. When the ejection mechanism is triggered, it drives the outer ring extinguishing agent 9 to spray out from the opening of the connecting pipe 3. Since the opening of the connecting pipe 3 at the bottom faces downward, the sprayed outer ring extinguishing agent 9 interacts with the ground. Under the push of the reaction force, it drives the inner sphere 1 to move upward as a whole, increasing the height of the fire extinguishing device. Then, the expansion mechanism drives the inner ring extinguishing agent 10 to spray out. By increasing the height of the inner sphere 1, the spraying effect of the inner ring extinguishing agent 10 is increased, so that the inner ring extinguishing agent 10 can reduce the influence of ground obstruction and can be sprayed more effectively and evenly around the inner sphere 1, thereby further improving the fire extinguishing effect of the device.

[0033] refer to Figure 5 and Figure 9 In one optional embodiment: at least fourteen connecting pipes 3 are provided, evenly distributed on the spherical surface of the inner sphere 1, and several spiral grooves 31 are opened inside the connecting pipes 3.

[0034] It should be noted that, driven by the explosion of the core 6, the outer ring extinguishing agent 9 inside the outer spraying chamber is sprayed outward through the connecting pipe 3. Since the connecting pipe 3 is provided with several spiral grooves 31, when the sprayed outer ring extinguishing agent 9 passes through the connecting pipe 3, under the guiding effect of the spiral grooves 31, the outer ring extinguishing agent 9 is sprayed out in a spiral shape when it leaves the connecting pipe 3. Thus, under the action of spiral centrifugal force, the spirally sprayed outer ring extinguishing agent 9 can be sprayed evenly and dispersed when sprayed to a far range, thereby effectively ensuring the uniformity of the outer ring extinguishing agent 9 sprayed in a far range area and ensuring the fire extinguishing effect of the device in a far range area.

[0035] Example 2 refer to Figure 3 and Figure 7 A dual-control burst spray type fire extinguishing device includes an inner sphere 1 and an outer sphere 2, with a connecting pipe 3 fixedly connected between the inner sphere 1 and the outer sphere 2. The inner sphere 1 and the outer sphere 2 are respectively filled with an outer ring fire extinguishing agent 9 and an inner ring fire extinguishing agent 10. The inner sphere 1 and the outer sphere 2 are respectively provided with a spraying mechanism and an expansion mechanism.

[0036] refer to Figure 3 In an optional embodiment: the ejection mechanism includes a drive core 6, and a positioning rope 61 is fixedly connected to the outside of the drive core 6. The positioning rope 61 is adhered to the inner surface of the inner sphere 1. The positioning rope 61 is used to fix and suspend the drive core 6 at the center position of the inner sphere 1. The drive core 6 is configured as explosive gunpowder.

[0037] It should be noted that the explosive powder of the driving core 6 is prepared by existing conventional processes, and the amount thereof can be selected and configured according to actual size. The triggering of driving by the explosion of the driving core 6 is the same as the core driving method in the prior art, which will not be described in detail herein, and the main difference lies in the way of ejecting and leaving the inner sphere 1.

[0038] Reference Figure 7 , in an alternative embodiment: the expansion mechanism comprises an expansion balloon 7 fixedly connected to the outer surface of the inner sphere 1, at least one gas charging block 71 is arranged inside the inner sphere 1 where the expansion balloon 7 is located, the interior of the gas charging block 71 is filled with a gas generating agent, an igniter 72 is fixedly connected inside the gas charging block 71, and the interior of the igniter 72 is filled with an igniting agent.

[0039] It should be noted that the gas charging block 71 is in communication with the expansion balloon 7, the interior of the gas charging block 71 reacts rapidly to generate nitrogen gas under the action of high temperature, so that the expansion balloon 7 expands rapidly, and the expanded expansion balloon 7 drives the inner ring fire extinguishing agent 10 to spray around.

[0040] It should be noted that when the expansion balloon 7 is in an expanded state, the expansion balloon 7 covers the outer port of the connecting pipe 3, so that the connecting pipe 3 is located inside the expansion balloon 7, thereby achieving the effect of protecting the inner sphere 1 and the connecting pipe 3, and preventing the inner sphere 1 and the connecting pipe 3 that fly out after spraying from injuring peripheral personnel.

[0041] It should be noted that the outer layer of the expansion balloon 7 is coated with a fire-resistant coating.

[0042] In an alternative embodiment: the gas generating agent includes, but is not limited to, sodium azide, potassium perchlorate, aluminum powder and magnesium powder.

[0043] In an alternative embodiment: the igniting agent includes an oxidizing agent and a fuel.

[0044] Embodiment 3 Reference Figure 8 , a double-control explosion spreading expansion-spraying fire extinguishing device, comprising an inner sphere 1 and an outer sphere 2, a connecting pipe 3 is fixedly connected between the inner sphere 1 and the outer sphere 2, an outer ring fire extinguishing agent 9 and an inner ring fire extinguishing agent 10 are respectively filled inside the inner sphere 1 and the outer sphere 2, and an ejection mechanism and an expansion mechanism are respectively arranged inside the inner sphere 1 and the outer sphere 2.

[0045] In an alternative embodiment: fuses 8 are arranged outside both the expansion mechanism and the ejection mechanism, the fuses 8 extend to the outside of the outer sphere 2, the fuses 8 are distributed in a "cross" shape or a "star" shape outside the outer sphere 2, and the fuses 8 are connected to the igniter 72 of the expansion mechanism and the driving core 6 of the ejection mechanism.

[0046] It should be noted that by setting the fuses 8 in a cross shape or a star shape, the device can make better contact with the open flame when thrown into the fire area, thus facilitating and quickly igniting the fuses 8 and effectively ensuring the triggering effect of the device.

[0047] The wrapping layer 4 covers the outside of the lead wire 8, and the wrapping layer 4 also serves to protect the lead wire 8 from water and moisture.

[0048] According to Embodiments 1, 2, and 3, the specific working process of the above-mentioned dual-control explosive spraying fire extinguishing device includes: When in use, throw or roll the device into the fire area.

[0049] When the outer layer 4 comes into contact with an open flame, it burns and rolls up rapidly, exposing the fuse 8 directly to the open flame. The open flame ignites the fuse 8, which in turn ignites the inner drive core 6 and the igniter 72 in sequence. The drive core 6 explodes, driving the outer ring extinguishing agent 9 to spray outward through the connecting pipe 3. At the same time, the outer ring extinguishing agent 9 sprayed through the bottom connecting pipe 3 propels the device upward. Simultaneously, the igniter 72 ignites the inflatable block 71, triggering the gas generator inside the inflatable block 71. The gas generator rapidly produces nitrogen gas, which quickly inflates the expansion bladder 7. The rapidly expanding expansion bladder 7 drives the inner ring extinguishing agent 10 to destroy the outer sphere 2, and then sprays it outward. Through the spraying of the outer ring extinguishing agent 9 and the inner ring extinguishing agent 10, a rapid fire extinguishing effect is achieved.

[0050] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dual-control, explosive, and dispersive expansion spray fire extinguishing device, characterized in that, It includes an inner sphere (1) and an outer sphere (2), with a connecting pipe (3) fixedly connected between the inner sphere (1) and the outer sphere (2). The inner sphere (1) and the outer sphere (2) are respectively filled with an outer ring fire extinguishing agent (9) and an inner ring fire extinguishing agent (10). The inner sphere (1) and the outer sphere (2) are respectively provided with a spraying mechanism and an expansion mechanism. The inner sphere (1) is connected to the outside through the connecting pipe (3). The inner sphere (1) and the connecting pipe (3) constitute the outer spraying chamber. The outer ring fire extinguishing agent (9) is filled inside the outer spraying chamber. The outer port of the connecting pipe (3) is attached with a sealing sheet (5) for sealing the outer spraying. The outer sphere (2) is bonded to the outer port of the connecting pipe (3). An inner spraying cavity is constructed between the inner sphere (1), the outer sphere (2) and the connecting pipe (3). The inner ring fire extinguishing agent (10) is filled inside the inner spraying cavity. The sealing sheet (5) and the outer surface of the outer sphere (2) form a spherical surface. The ejection mechanism includes a drive core (6) located at the center of the inner sphere (1), and the drive core (6) is configured as explosive propellant. The inner sphere (1) and connecting pipe (3) are metal shells, and the outer sphere (2) and sealing sheet (5) are made of polystyrene foam, polyurethane foam, fiber foam or plastic. At least six connecting pipes (3) are provided, evenly distributed on the spherical surface of the inner sphere (1); The expansion mechanism includes an expansion airbag (7) fixedly connected to the outer surface of the inner sphere (1). The expansion airbag (7) is located inside the inner sphere (1) and has at least one inflation block (71). The inflation block (71) is filled with a gas generating agent. An igniter (72) is fixedly connected inside the inflation block (71). The igniter (72) is filled with an igniter. Both the expansion mechanism and the ejection mechanism are provided with lead wires (8) on their exteriors. The lead wires (8) connect the igniter (72) of the expansion mechanism and the drive core (6) of the ejection mechanism. The lead wires (8) ignite the drive core (6) and the igniter (72) in sequence.

2. The dual-control burst spray type fire extinguishing device according to claim 1, characterized in that: The sealing sheet (5) and the outer sphere (2) are covered with a wrapping layer (4), which is made of flammable film. The wrapping layer (4) completely covers the outer sphere (2) and the sealing sheet (5). The material of the wrapping layer (4) includes polystyrene foam, polyurethane foam, fiber foam or plastic.

3. The dual-control burst spray type fire extinguishing device according to claim 1, characterized in that: The connecting pipe (3) has several spiral grooves (31) inside.

4. The dual-control burst spray type fire extinguishing device according to claim 3, characterized in that: The drive core (6) is fixedly connected to the outside of a positioning rope (61), which is bonded to the inner surface of the inner sphere (1). The positioning rope (61) is used to fix and suspend the drive core (6) at the center of the inner sphere (1).

5. The dual-control burst spray type fire extinguishing device according to claim 4, characterized in that: The gas generator includes sodium azide, potassium perchlorate, aluminum powder, and magnesium powder.

6. The dual-control burst spray type fire extinguishing device according to claim 4, characterized in that: The ignition agent includes an oxidant and fuel.

7. The dual-control burst spray type fire extinguishing device according to claim 4, characterized in that: The lead wire (8) extends to the outside of the outer sphere (2), and the lead wire (8) is distributed in a cross shape or a rice-shaped shape on the outside of the outer sphere (2).

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