Implosion type fire extinguishing ball provided with hollow shell and capable of being triggered in delayed mode and control method of implosion type fire extinguishing ball

Abstract

The invention relates to the field of fire fighting, in particular to an implosion type fire extinguishing ball with a hollow shell capable of being triggered in a delayed mode and a control method thereof.The implosion type fire extinguishing ball comprises the shell, and the shell is provided with a hollow spraying hole used for spraying a fire extinguishing agent and a charging hole used for assembling; the fire extinguishing medium ball is arranged in the shell and comprises an isolation ball layer and a fire extinguishing medium filled in the isolation ball layer; and the implosion pipe is arranged in the fire extinguishing medium ball, is fixedly connected with the fire extinguishing medium ball, and is fixed on the shell through the charging hole. Black powder is arranged in the explosive tube, explosion energy is absorbed through the explosion-proof tube, it is ensured that the shell is complete, only a fire extinguishing agent is pushed to be sprayed out from the hollowed-out holes in order, in addition, a small high-pressure gas bottle tank (such as carbon dioxide and other inert gas) can be adopted, a high-pressure gas tank can be punctured through a mechanical device, and high-pressure gas in the tank expands through an air bag to gently press out the fire extinguishing agent; no explosion risk exists, and the safety is further improved.

Description

Technical Field

[0001] The present invention belongs to the field of fire protection, and in particular relates to an implosion-type fire extinguishing ball with a hollow shell capable of delayed triggering and a control method thereof. Background Art

[0002] In current firefighting efforts, in addition to spraying water, fire extinguishing agents can also be used to extinguish burning objects. Currently, there are two main methods for deploying fire extinguishing agents: canister fire extinguishers, which use internal air pressure to spray the extinguishing agent. However, these methods suffer from issues such as short spray distance, low power, and a small amount of extinguishing agent, making them primarily used for extinguishing initial fires. The other method is the deployment of fire extinguishing balls, which detonate internal explosives to release the extinguishing agent and cover the burning object. This method can be deployed from a distance, offers greater power, and produces a large amount of extinguishing agent, making it suitable for fires beyond the initial stage.

[0003] However, there are many problems to be solved in the current fire extinguishing ball technology: first, there are great safety hazards. Because the outer shell needs to be blasted to release the fire extinguishing agent, high-power explosives need to be used, which poses a safety hazard and secondary damage to the fire scene; second, the fire extinguishing efficiency is not high. After the outer shell is blasted, the large-power explosion can easily cause the fire extinguishing agent to be blown away from the burning object; third, the release requirements are high. The fuse needs to be ignited to detonate, and it needs to be released accurately, otherwise it cannot be detonated; fourth, air explosion cannot be achieved. If air explosion can be achieved above the burning object, the fire extinguishing agent can be spread over a larger area to prevent combustion, but this cannot be achieved with existing technology. Summary of the Invention

[0004] In order to overcome the problems of existing fire extinguishing ball technology, such as great safety hazards, low fire extinguishing efficiency, high deployment requirements and inability to achieve air explosion, an implosion-type fire extinguishing ball with a hollow shell and delayed triggering and its control method are proposed.

[0005] The technical solution of the present invention is: an implosion-type fire extinguishing ball with a hollow shell that can be triggered with a delay, comprising: an outer shell, the outer shell being provided with a hollow injection hole for spraying a fire extinguishing agent and a charging hole for assembly; a fire extinguishing medium ball arranged in the outer shell, comprising an isolation ball layer and a fire extinguishing medium filled in the isolation ball layer; an implosion tube arranged in the fire extinguishing medium ball, the implosion tube being fixedly connected to the fire extinguishing medium ball and fixed in the outer shell through the charging hole.

[0006] Furthermore, the shell is an integrally formed hard plastic, the hollow injection holes are round holes, the hole density is 5-20 per square centimeter, the shell material is hard plastic, and the charging hole is used to accommodate the fire extinguishing medium ball and the implosion tube during assembly, and is sealed by a sealing cover after assembly is completed.

[0007] Furthermore, the isolation ball layer is a composite membrane layer, which is composed of metal aluminum foil and nylon film or polyester film. The fire extinguishing medium is filled into the isolation ball layer by blowing. A middle tube isolation membrane is provided in the middle of the isolation ball layer. The implosion pipe and the isolation ball layer are fixedly connected through the middle tube isolation membrane. The middle tube isolation membrane is a high-temperature resistant adhesive film that runs through the inside and outside of the isolation ball layer. The implosion pipe passes through the middle tube isolation membrane and is fixed to the inner wall of the isolation ball layer by bonding.

[0008] Furthermore, the fire extinguishing medium is dry powder or foam generating liquid; when the fire extinguishing medium is foam generating liquid, the isolation ball layer is divided into liquid package A and liquid package B, which are separated by an intermediate isolation membrane and generate foam or flame retardant after mixing.

[0009] Furthermore, the implosion tube comprises:

[0010] The wire tube is a cardboard tube with a friction ignition part, a delay fuse part and a ignition cord inside. The ignition cord is fixed to the sealing part of the wire tube.

[0011] Explosive tube, connected to the delay fuse part, with black powder or small high-pressure gas cylinder inside;

[0012] The explosion-proof tube is made of foam and is the outermost structure of the implosion tube. The wire tube and explosive tube are placed inside it.

[0013] The fast-burning fuse channel is the annular space between the wire tube and the explosion-proof tube. It has multiple fast-burning fuses built in. One end of the fast-burning fuse is pasted near the ignition hole of the delay fuse part, and the other end extends to the outer layer of the fire extinguishing medium ball; the friction ignition part of the wire tube pulls the internal cotton thread and the highly sensitive drug to ignite by friction through the pull of the fuse, and the delay fuse part is a slow-burning fuse, which is used to control the delayed detonation time of the explosive tube.

[0014] Furthermore, the delay fuse is a slow burning fuse with a burning time of 5-30 seconds, and the fuse is attached to the shell by adhesive tape in the safety state.

[0015] Furthermore, the fast burning fuse is attached to the outer layer of the fire extinguishing medium ball through silicone oil paper, and the extension path covers the bottom area of the fire extinguishing medium ball, and can be directly ignited by open flame or impact.

[0016] Furthermore, the power modes of the explosive tube include:

[0017] Explosive initiation mode: built-in black powder, ignited by the delayed fuse, and the explosion impact is buffered by the explosion-proof tube;

[0018] Gas tank pressure mode: A small high-pressure gas cylinder is built in. The glue on the gas-blocking ring tube pasted on the inner wall of the explosion-proof tube is melted by the fast-burning fuse to make it movable. Then the puncture nail pierces the seal of the high-pressure gas tank under the action of the compression spring, and the high-pressure gas expands through the airbag to spray the fire extinguishing agent.

[0019] The present invention also provides a triggering method for an implosion-type fire extinguishing ball with a hollow shell capable of delayed triggering, including:

[0020] Pull-cord trigger: Pulling the pull-cord ignites the delayed fuse, which then activates the explosive tube via the fast-burning fuse after a delay.

[0021] Impact Trigger: The fast-burning fuse is ignited by impact or open flame, directly starting the explosive tube.

[0022] The present invention also provides a method for controlling a hollow shell implosion-type fire extinguishing ball capable of delayed triggering, which comprises the above-mentioned hollow shell implosion-type fire extinguishing ball capable of delayed triggering, and the steps of the control method are as follows:

[0023] S1: Assembly Steps

[0024] The fire extinguishing medium ball and the implosion tube are loaded into the outer shell through the charging hole. Specifically, the implosion tube is inserted into the middle tube isolation membrane of the isolation ball layer so that the implosion tube is located in the center of the fire extinguishing medium ball. The middle tube isolation membrane is fixed to the outer wall of the explosion-proof tube of the implosion tube by gluing. Dry powder is blown into the isolation ball layer or liquid packages A and B are separately filled. After the fire extinguishing agent is injected through the charging hole, the charging hole is sealed with a sealing cover.

[0025] S2: Triggering step

[0026] Pull-cord trigger path: Pulling the pull-cord causes the cotton thread in the wire tube to rub against the highly sensitive drug in the friction ignition part, igniting the delay fuse part; the delay fuse part burns slowly to the end with a burning time of 5-30 seconds, and then ignites the fast-burning fuse in the fast-burning fuse channel through the ignition hole.

[0027] Impact trigger path: When the fire extinguishing ball is thrown into the burning area, the fast burning fuse is directly ignited by impact or open flame. The flame passes through the fast burning fuse channel and is conducted to the explosive tube through the ignition hole of the explosive tube.

[0028] S3: Fire extinguishing steps

[0029] Explosive detonation mode: The fast-burning fuse ignites the black powder in the explosive tube. The explosion impact is buffered by the foam material of the explosion-proof tube, and then pushes the fire extinguishing medium out through the hollow injection hole of the shell, and the shell remains intact and not broken.

[0030] Gas tank pressure mode: The fast-burning fuse heat-melts the glue on the explosion-proof tube to release the displacement restriction of the puncture ring tube, and then the puncture nail pierces the seal of the high-pressure gas tank under the action of the compression spring. The small high-pressure gas cylinder releases high-pressure gas, and the middle layer diaphragm of the isolation ball layer is expanded through the expansion of the airbag. After the liquid package A and the liquid package B are mixed to generate foam, it is squeezed out from the hollow injection hole.

[0031] S4: Special steps for liquid dosage forms

[0032] When the fire extinguishing medium is foam generating liquid, during the combustion of the delayed fuse or the ignition of the fast burning fuse, the middle isolation membrane in the isolation ball layer is first burned by the fast burning fuse, so that the A liquid package and the B liquid package are mixed to produce foam, and then the foam is sprayed out through the power of the explosive tube.

[0033] Beneficial effects of the present invention:

[0034] 1. The outer shell adopts an integrated hard plastic shell, and the built-in explosion tube uses a foam explosion-proof tube to cushion the impact force. The fire extinguishing agent is sprayed only from the hollow injection hole without blowing up the outer shell, avoiding the safety hazards and risk of fragments flying caused by traditional high-powered explosives. The implosion design can avoid secondary damage.

[0035] 2. By embedding black powder in the explosive tube and absorbing the explosion energy through the explosion-proof tube, the shell is kept intact, and only the fire extinguishing agent is pushed out in an orderly manner from the hollow hole. In addition, a small high-pressure gas cylinder (such as inert gas such as carbon dioxide) can be used. The seal of the gas cylinder can be pierced by a mechanical device. The high-pressure gas expands through the airbag and gently presses out the fire extinguishing agent, eliminating the risk of explosion and further improving safety.

[0036] 3. Precise control of hollow holes: The hollow injection holes (5-20 holes / square centimeter) on the outer shell realize directional injection of fire extinguishing agent, avoiding the problem of "explosion" of fire extinguishing agent caused by traditional explosion, directly covering the surface of burning objects, and improving fire extinguishing efficiency. When the fire extinguishing medium is foam generating liquid, the A and B liquid packages in the isolation ball layer burn through the isolation membrane through the fast burning fuse to mix and generate foam, and then are ejected by air pressure or explosion force. The foam covers a large area and has strong adhesion, and the fire extinguishing effect is better than the traditional dry powder direct injection.

[0037] 4. By pulling the ignition cord, the slow-burning delay fuse of 5-30 seconds can be ignited. The detonation time can be preset according to the throwing distance, and there is no need to accurately throw it to the fire source, which is suitable for human operation scenarios. In addition, when the fire extinguishing ball is thrown into the burning area, the fast-burning fuse at the bottom is directly ignited by impact or open flames without human intervention. It is suitable for high-risk and unmanned fire scenes, solving the problem of "precise ignition of the fuse" in the traditional method.

[0038] 5. The controllable air explosion of the present invention expands the coverage range. By delaying the burning time of the fuse (5-30 seconds), the fire extinguishing ball can be air-exploded when thrown above the burning object: the explosion or air pressure pushes the fire extinguishing agent from the hollow hole to the surrounding area, forming an "umbrella-shaped" coverage. Compared with the traditional ground explosion, the coverage area is expanded by 30%-50%, which is more effective in blocking the spread of fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 Shown is a schematic diagram of the three-dimensional structure of the present invention;

[0040] Figure 2 Shown is a schematic diagram of a three-dimensional cross-sectional structure of the isolation ball layer of the present invention;

[0041] Figure 3 Shown is a schematic diagram of the three-dimensional structure of the implosion tube of the present invention;

[0042] Figure 4 Shown is a schematic diagram of the three-dimensional structure of the isolation ball layer of the present invention;

[0043] Figure 5 Shown is a schematic diagram of the three-dimensional structure of the metal aluminum sheet and polyester film of the present invention;

[0044] Figure 6 Shown is a schematic diagram of the three-dimensional structure of the fire extinguishing medium of the present invention;

[0045] Figure 7 Shown is a schematic diagram of the three-dimensional structure of the middle tube isolation membrane of the present invention;

[0046] Figure 8 Shown is a schematic diagram of the three-dimensional structure of the implosion tube of the present invention;

[0047] Figure 9 Shown is a cross-sectional view of the implosion tube of the present invention;

[0048] Figure 10 Shown is a schematic diagram of the three-dimensional structure of the explosive tube of the present invention in the first power mode;

[0049] Figure 11 Shown is a schematic diagram of the three-dimensional structure of the second power mode of the explosive tube of the present invention;

[0050] Figure 12 Shown is a cross-sectional view of the explosive tube of the present invention in a second dynamic mode;

[0051] Figure 13 Shown is a schematic diagram of the three-dimensional structure of the wire tube of the present invention;

[0052] Figure 14 Shown is a schematic diagram of the three-dimensional structure of the fast burning fuse of the present invention.

[0053] The markings in the accompanying drawings are: 1. shell; 2. hollow injection hole; 3. charging hole; 4. fire extinguishing medium ball; 41. isolation ball layer; 411. metal aluminum sheet; 412. nylon film; 413. polyester film; 414. middle tube isolation membrane; 42. fire extinguishing medium; 421. dry powder; 422. foam generating liquid; 4221. liquid bag A; 4222. liquid bag B; 4223. middle isolation membrane; 5. implosion tube; 51. wire tube; 511. friction ignition part; 512. delay fuse part; 5121. ignition hole; 513. pull rope; 514. wire tube sealing part; 52. explosive tube; 53. explosion-proof tube; 54. fast burning fuse channel; 541. fast burning fuse; 6. sealing cover; 55. high-pressure gas tank; 542. puncture ring tube; 543. puncture nail; 544. compression spring. DETAILED DESCRIPTION

[0054] The present invention will be further described below with reference to the accompanying drawings and examples.

[0055] Example 1: Please refer to Figures 1-14 The invention discloses an implosion-type fire extinguishing ball with a hollow shell and a delayed trigger, comprising: a shell 1, the shell 1 being provided with a hollow injection hole 2 for injecting a fire extinguishing agent and a charging hole 3 for assembly; a fire extinguishing medium ball 4 arranged in the shell 1, comprising an isolation ball layer 41 and a fire extinguishing medium 42 filled in the isolation ball layer 41; an implosion tube 5 arranged in the fire extinguishing medium ball 4, the implosion tube 5 being fixedly connected to the fire extinguishing medium ball 4 and fixed in the shell 1 through the charging hole 3.

[0056] See also Figure 1-Figure 3 In this embodiment, the shell 1 is an integrally molded hard plastic sphere, the hollow injection holes 2 are circular holes or holes of other shapes, and the hole density is 5-20 holes per square centimeter. The shell 1 is made of hard plastic, and the charging hole 3 is used to accommodate the fire extinguishing medium ball 4 and the implosion tube 5 during assembly. After assembly, it is sealed by the sealing cover 6. The integrally molded hard plastic shell 1 has high strength and is non-combustible, which can prevent the shell from rupturing and causing fragments to fly; the hole density of the hollow injection holes 2 (5-20 holes per square centimeter) can achieve directional spraying of the fire extinguishing agent, thereby improving the fire extinguishing efficiency; the sealing cover 6 seals the charging hole 3, which can fix the internal structure and prevent the fire extinguishing agent from leaking.

[0057] See also Figure 2-Figure 5In this embodiment, the isolation ball layer 41 is a composite film layer composed of a metal aluminum sheet 411 and a nylon film 412 or a polyester film 413. The fire extinguishing medium 42 is filled into the isolation ball layer 41 by blowing. A middle tube isolation membrane 414 is provided in the middle of the isolation ball layer 41. The implosion tube 5 is fixedly connected to the isolation ball layer 41 via the middle tube isolation membrane 414. The middle tube isolation membrane 414 is a high-temperature resistant adhesive film that runs through the inside and outside of the isolation ball layer 41. The implosion tube 5 passes through the middle tube isolation membrane 414 and is fixed to the inner wall of the isolation ball layer 41 by gluing. The isolation ball layer 41 has leak-proof, waterproof, and moisture-proof properties, which can protect the fire extinguishing medium 42. The middle tube isolation membrane 414 fixes the implosion tube 5. Its high-temperature resistance ensures the stability of the structure during explosion and effectively prevents leakage of the fire extinguishing agent.

[0058] See also Figure 7-14 In this embodiment, the implosion tube 5 comprises:

[0059] The wire tube 51 is a cardboard tube with a friction ignition unit 511, a delay fuse unit 512 and a ignition cord 513 provided inside. The ignition cord 513 is fixed to the sealing portion 514 of the wire tube. The end of the delay fuse unit 512 has a plurality of ignition holes 5121.

[0060] Explosive tube 52, connected to the delay fuse part 512, built-in black powder or small high-pressure gas cylinder 55 and mechanical trigger device;

[0061] The explosion-proof tube 53 is made of foam and is the outermost structure of the implosion tube 5. The wire tube and the explosive tube are sheathed therein.

[0062] The fast burning fuse channel 54 is an annular space between the explosive tube 52 and the explosion-proof tube 53, and contains multiple fast burning fuses 541. One end of the fast burning fuse 541 is attached to the ignition hole 5121 at the bottom of the delay fuse part 512, and the other end extends to the outer layer of the fire extinguishing medium ball 4;

[0063] The friction ignition part 511 of the wire tube 51 pulls the internal cotton thread and the highly sensitive drug to ignite by friction through the ignition cord 513. The delay fuse part 512 is a slow burning fuse used to control the delayed detonation time of the explosive tube 52.

[0064] The wire tube 51 is made of cardboard tube, which is low in cost and stable in structure. The friction ignition part 511 cooperates with the ignition cord 513 to realize manual triggering. The delay fuse part 512 (5-30 seconds) can be preset to have a detonation time, which can adapt to different throwing distances and does not require precise throwing to the fire source.

[0065] The explosive tube 52 supports dual modes of black powder explosion or high-pressure gas tank 55 pressure, which is highly flexible.

[0066] The explosion-proof tube 53 (made of foam) cushions the impact of the explosion and prevents the shell 1 from rupturing and causing secondary damage;

[0067] The fast burning fuse channel 54 connects the time delay fuse and the outer layer of the fire extinguishing medium ball 4, and can quickly burn through the isolation ball layer 41, thereby improving the spraying efficiency of the fire extinguishing agent.

[0068] See also Figure 11-12 In this embodiment, in the high-pressure gas tank pressure-activated mode, the high-pressure gas tank 55 and the detonating device include the following:

[0069] The puncture-blocking ring tube 542 is made of metal and is located between the seal of the gas tank 55 and the puncture nail 543. Together with the fast-burning fuse 541, it is adhered to the inner wall of the explosion-proof tube 53. When in the ready state, it is used to support and prevent the puncture nail 543 from piercing the seal of the gas tank.

[0070] The compression spring 544 is sleeved on the outer layer of the wire tube 51 and is sandwiched between the sealing cover 6 and the puncture nail 543. It is in a compressed state and provides puncture power to the puncture nail 543 after being triggered.

[0071] The puncture nail 543 is located at the bottom of the compression spring 544 and is sleeved in the puncture-blocking ring tube 542, with the nail opening aligned with the seal of the high-pressure gas tank.

[0072] There is high-pressure inert gas (such as inert gas such as carbon dioxide) in the small high-pressure gas cylinder tank 55, which is used to spray the power of the fire extinguishing agent.

[0073] In the high-pressure gas tank pressure mode, the fast-burning fuse 541 first heat-melts the glue on the anti-piercing ring tube 542 to limit its contact displacement. The amount of combustion powder used in this process is extremely small, and in a confined space, when the inert gas in the high-pressure tank is ejected, the burning gunpowder can be extinguished instantly, which is suitable for sensitive scenarios such as extinguishing explosive fires.

[0074] See also Figure 13 In this embodiment, the delay fuse part 512 is a slow-burning fuse with a burning time of 5-30 seconds. The ignition cord 513 is attached to the shell 1 by tape in the safety state. The burning time of the delay fuse part 512 is controllable (5-30 seconds), and it supports the air explosion mode (detonating above the burning object), which expands the coverage area of the fire extinguishing agent by 30%-50%; the ignition cord 513 is fixed to the shell 1 to avoid accidental touch and safety hazards.

[0075] See also Figure 8 、 Figure 9 and Figure 11In this embodiment, the fast-burning fuse 541 is adhered to the outer layer of the fire-extinguishing medium ball 4 through silicone oil paper, and the extension path covers the bottom area of the fire-extinguishing medium ball 4. It can be directly ignited by open flame or impact. The silicone oil paper adheres to the fast-burning fuse 541, which is moisture-proof and high-temperature resistant, ensuring the reliability of the fuse. At the same time, it also prevents the fast fuse 541 from burning and generating open flames to ignite external flammable materials, causing secondary fires. The bottom covering design allows the fire extinguishing ball to be automatically ignited by impact or open flame when thrown into the fire scene. It is suitable for high-risk and unattended scenarios, solving the problem of traditional precise ignition.

[0076] See also Figures 9-14 In this embodiment, the power modes of the explosive tube 52 include:

[0077] Explosive detonation mode: built-in black powder is ignited by the delayed fuse 512, and the explosion impact is buffered by the explosion-proof tube 53;

[0078] Gas tank pressure mode: A small high-pressure gas cylinder (such as carbon dioxide or other inert gas) 55 is built in. The glue on the puncture-resistant ring tube 542 is melted by the rapid burning fuse 541 to release the displacement restriction. The puncture nail 543 pierces the seal of the high-pressure gas cylinder under the action of the compression spring 544. The high-pressure gas expands through the airbag and sprays the fire extinguishing agent.

[0079] In the explosive detonation mode, the explosion force is buffered by the explosion-proof tube 53, and only the fire extinguishing agent is pushed out from the hollow hole to avoid the shell from rupturing;

[0080] The gas tank pressure mode (inert gas cylinders such as carbon dioxide) mainly punctures the gas tank mechanically. The amount of medicine used is extremely small and there is no risk of explosion. The high-pressure gas gently presses out the fire extinguishing agent, which is safer and suitable for sensitive scenarios such as extinguishing explosive fires.

[0081] Example 2

[0082] See also Figure 3 and Figure 6 Based on Example 1, this application provides a technical solution: the fire extinguishing medium 42 is dry powder 421. The dry powder 421 fire extinguishing medium can be sprayed onto the surface of the burning object through explosion or air pressure to block the combustion reaction. It is suitable for scenes such as solid and electrical fires and has a fast fire extinguishing speed.

[0083] Example 3

[0084] See also Figure 3 and Figure 6Based on Example 1, the present application provides a technical solution: the fire extinguishing medium 42 is a foam generating liquid 422; when the fire extinguishing medium 42 is the foam generating liquid 422, the isolation ball layer 41 is divided into liquid package A 4221 and liquid package B 4222, which are separated by an intermediate isolation membrane 4223. After mixing, foam or flame retardant is generated. The foam generating liquid 422 is mixed with liquid package A 4221 and liquid package B 4222 to generate foam, which has a large coverage area and strong adhesion, and the fire extinguishing effect is better than traditional powder direct injection; the intermediate isolation membrane 4223 ensures that the liquids are not mixed during transportation and storage, and reacts quickly to generate fire extinguishing agent after being triggered, thereby improving fire extinguishing efficiency.

[0085] The present invention also provides a triggering method for an implosion-type fire extinguishing ball with a hollow shell capable of delayed triggering, which includes the implosion-type fire extinguishing ball with a hollow shell capable of delayed triggering as described above, and the triggering method includes:

[0086] Pull-cord trigger: Pulling the ignition cord 513 ignites the time-delay fuse 512, which then activates the explosive tube 52;

[0087] Impact triggering: The fast burning fuse 541 is ignited by impact or open flame, directly starting the explosive tube 52.

[0088] The present invention also provides a control method for a fire extinguishing ball with a hollow shell capable of delayed triggering, which includes the above-mentioned implosion-type fire extinguishing ball with a hollow shell capable of delayed triggering. The control method comprises the following steps:

[0089] S1: Assembly Steps

[0090] The fire extinguishing medium ball 4 and the implosion tube 5 are loaded into the housing 1 through the charging hole 3. Specifically, the implosion tube 5 is passed through the middle tube isolation membrane 414 of the isolation ball layer 41, so that the explosive tube 52 is located in the center of the fire extinguishing medium ball 4. The middle tube isolation membrane 414 is fixed to the outer wall of the implosion tube 5 by gluing.

[0091] The isolation ball layer 41 is filled with dry powder 421 or liquid package A 4221 and liquid package B 4222 separately. After the fire extinguishing agent is injected through the charging hole 3, the charging hole 3 is sealed with glue using the sealing cover 6.

[0092] S2: Triggering step

[0093] Pull-cord triggering path: Pulling the ignition cord 513 causes the cotton thread in the wire tube 51 to ignite the highly sensitive drug in the friction ignition part 511 by friction, thereby igniting the delay fuse part 512;

[0094] The delayed fuse portion 512 burns slowly to the end with a burning time of 5-30 seconds, igniting the fast burning fuse 541 in the fast burning fuse channel 54 through the ignition hole 5121 at the bottom. The fast burning fuse 541 burns through the isolation ball layer 41 and ignites the explosive tube 52 at the same time.

[0095] Impact trigger path: When the fire extinguishing ball is thrown into the burning area, the fast burning fuse 541 is directly ignited due to impact or open flame, and the flame passes through the fast burning fuse channel 54 and is conducted to the explosive tube 52 through the ignition hole 5121 at the bottom of the delayed fuse part 512.

[0096] S3: Fire extinguishing steps

[0097] Explosive detonation mode: The fast-burning fuse 541 ignites the black powder in the explosive tube 52. The explosion impact is buffered by the foam material of the explosion-proof tube 53, and then pushes the fire extinguishing medium 42 to be ejected through the hollow injection hole 2 of the shell 1, and the shell 1 remains intact and not broken.

[0098] Gas tank pressure mode: The fast-burning fuse 541 first heat-melts the glue on the puncture-resistant ring tube 542 to release the displacement restriction. The puncture nail 543 pierces the seal of the high-pressure gas tank 55 under the action of the compression spring 544. The small high-pressure gas cylinder 55 (such as inert gas such as carbon dioxide) in the explosive tube 52 releases high-pressure gas, and the airbag expands to expand the middle layer diaphragm of the isolation ball layer 41, and the A liquid package 4221 and the B liquid package 4222 are mixed to generate foam, which is then pressed out from the hollow injection hole 2.

[0099] S4: Special steps for liquid dosage forms

[0100] When the fire extinguishing medium is the foam generating liquid 422, during the combustion of the delayed fuse part 512 or the ignition of the fast burning fuse 541, the intermediate isolation membrane 4223 in the isolation ball layer 41 is first burned through by the fast burning fuse 541, so that the A liquid package 4221 and the B liquid package 4222 are mixed to generate foam, and then the foam is sprayed out through the power of the explosive tube 52.

Claims

1. An implosion-type fire extinguishing ball with a hollow shell that can be triggered with a delay, characterized in that: include: A housing (1) is provided with a hollow spray hole (2) for spraying a fire extinguishing agent and a charge hole (3) for assembly; The fire extinguishing medium ball (4) disposed in the housing (1) comprises an isolation ball layer (41) and a fire extinguishing medium (42) filled in the isolation ball layer (41); An implosion tube (5) is arranged in the fire extinguishing medium ball (4), the implosion tube (5) is fixedly connected to the fire extinguishing medium ball (4), and is fixed in the outer shell (1) through the charge hole (3).

2. The delayed-trigger implosion-type fire extinguishing ball with a hollow shell according to claim 1, characterized in that: The outer shell (1) is an integrally formed non-combustible hard plastic sphere, the hollow injection holes (2) are circular holes with a hole density of 5-20 holes per square centimeter, and the charging hole (3) is used to accommodate the fire extinguishing medium ball (4) and the implosion tube (5) during assembly. After assembly, the hole is sealed by a sealing cover (6).

3. The delayed-trigger implosion-type fire extinguishing ball with a hollow shell according to claim 1, characterized in that: The isolation ball layer (41) is a composite film layer, which is composed of a metal aluminum sheet (411) and a nylon film (412) or a polyester film (413). The fire extinguishing medium (42) is filled into the isolation ball layer (41) by blowing and filling. A middle tube isolation membrane (414) is provided in the middle of the isolation ball layer (41). The implosion tube (5) is fixedly connected to the isolation ball layer (41) through the middle tube isolation membrane (414). The middle tube isolation membrane (414) is a high-temperature resistant adhesive film that runs through the inside and outside of the isolation ball layer (41). The implosion tube (5) passes through the middle tube isolation membrane (414) and is fixed to the inner wall of the isolation ball layer (41) by gluing.

4. The delayed-trigger implosion-type fire extinguishing ball with a hollow shell according to claim 1, characterized in that: The fire extinguishing medium (42) is a dry powder (421) or a foam generating liquid (422); When the fire extinguishing medium (42) is a foam generating liquid (422), the isolation ball layer (41) is divided into liquid package A (4221) and liquid package B (4222), which are separated by an intermediate isolation membrane (4223) and generate foam or flame retardant after mixing.

5. The delayed-trigger implosion-type fire extinguishing ball with a hollow shell according to claim 1, characterized in that: The implosion tube (5) comprises: The wire tube (51) is a cardboard tube, and is provided with a friction ignition part (511), a delay fuse part (512) and a ignition rope (513) inside. The ignition rope (513) is fixed to the sealing part (514) of the wire tube; the bottom of the delay fuse part (512) is provided with a plurality of ignition holes (5121), and the holes are filled with gunpowder. An explosive tube (52) is connected to the time delay fuse (512) and contains black powder or a small high-pressure gas cylinder (55) and a detonating device; The explosion-proof tube (53) is made of foam material and is the outer structure of the implosion tube (5). The wire tube (51) and the explosive tube (52) are both sheathed therein. The fast burning fuse channel (54) is an annular space between the wire tube (51) and the explosion-proof tube (53), and has multiple fast burning fuses (541) built in. One end of the fast burning fuse (541) is attached to the vicinity of the ignition hole (5121) of the wire tube (51), and the other end extends to the outer layer of the fire extinguishing medium ball (4); The friction ignition part (511) of the wire tube (51) is ignited by friction between the internal cotton thread and the highly sensitive drug by pulling the ignition rope (513). The delay fuse part (512) is a slow burning fuse used to control the delayed detonation time of the explosive tube (52). The bottom of the delay fuse part (512) is provided with a plurality of ignition holes (5121) used to ignite the fast burning fuse (541) in the fast burning fuse channel (54).

6. The delayed-trigger implosion-type fire extinguishing ball with a hollow shell according to claim 5, characterized in that: The time delay fuse part (512) is a slow burning fuse with a burning time of 5-30 seconds. The ignition cord (513) is adhered to the housing (1) through adhesive tape in a safety state.

7. The delayed-trigger implosion-type fire extinguishing ball with a hollow shell according to claim 5, characterized in that: The fast burning fuse (541) is attached to the outer layer of the fire extinguishing medium ball (4) through silicone oil paper, and the extension path covers the bottom area of the fire extinguishing medium ball (4), and can be directly ignited by open flame or impact.

8. The delayed-trigger implosion-type fire extinguishing ball with a hollow shell according to claim 5, characterized in that: The power modes of the explosive tube (52) include: Explosive detonation mode: built-in black powder is ignited through the delayed fuse part (512), and the explosion impact force is buffered by the explosion-proof tube (53); Gas tank pressure mode: A small high-pressure gas cylinder (55) is built in. The glue of the anti-puncture ring tube (542) is pasted on the explosion-proof tube (53) by the fast burning fuse (541) and the puncture nail (543) pierces the seal of the high-pressure gas cylinder (55) under the action of the compression spring (544). The high-pressure gas expands through the air bag to spray the fire extinguishing agent. The explosion-proof tube (53) can protect the high-pressure gas cylinder (55) from being bumped during daily storage. The puncture-blocking ring tube (542) is made of metal and is located between the gas cylinder (55) seal and the puncture nail (543). Together with the fast-burning fuse (541), it is adhered to the inner wall of the explosion-proof tube (53). When in the ready state, it is used to support and prevent the puncture nail (543) from piercing the gas cylinder seal. The compression spring (544) is sleeved on the outer layer of the wire tube (51), sandwiched between the sealing cover (6) and the puncture nail (543), and is in a compressed state. After being triggered, it provides puncture power for the puncture nail (543). The puncture nail (543) is located at the bottom of the compression spring (544) and is sleeved in the puncture-blocking ring tube (542), with the nail opening aligned with the sealing opening of the high-pressure gas tank. High-pressure inert gas (such as inert gases such as carbon dioxide) is arranged in the small high-pressure gas cylinder tank (55) for the power of spraying fire extinguishing agent.

9. An implosion-type fire extinguishing ball with a hollow shell and delayed triggering according to any one of claims 1 to 8, characterized in that: Trigger methods include: Pull-cord triggering: Pulling the ignition cord (513) ignites the time-delay fuse (512), which then activates the explosive tube (52) via the fast-burning fuse (541) after a delay. Impact triggering: The fast burning fuse (541) is ignited by impact or open flame, directly starting the explosive tube (52).

10. A method for controlling a hollow shell delayed-trigger implosion fire extinguishing ball, comprising: a hollow shell delayed-trigger implosion fire extinguishing ball according to any one of claims 1 to 8; the control method comprising the following steps: S1: Assembly Steps The fire extinguishing medium ball (4) and the implosion tube (5) are loaded into the housing (1) through the charging hole (3), specifically: Insert the implosion tube (5) into the middle tube isolation membrane (414) of the isolation ball layer (41), so that the implosion tube (5) is located in the center of the fire extinguishing medium ball (4), and fix the middle tube isolation membrane (414) to the outer wall of the implosion tube (5); The isolation ball layer (41) is filled with dry powder (421) or liquid package A (4221) and liquid package B (4222) separately. After the fire extinguishing agent is injected through the charging hole (3), the charging hole (3) is sealed with glue using a sealing cover (6). S2: Triggering step Pull cord trigger path: Pulling the ignition cord (513) causes the cotton thread in the wire tube (51) to ignite by friction with the highly sensitive drug in the friction ignition part (511), thereby igniting the delay fuse part (512); The delayed fuse portion (512) burns slowly to the end with a burning time of 5-30 seconds, and ignites the fast burning fuse (541) in the fast burning fuse channel (54) through the bottom ignition hole (5121). Impact trigger path: When the fire extinguishing ball is thrown into the burning area, the fast burning fuse (541) is directly ignited due to impact or open flame, and the flame passes through the fast burning fuse channel (54) and ignites the explosive tube (52) through the ignition hole (5121) at the bottom of the delayed fuse part (512). S3: Fire extinguishing steps Explosive detonation mode: The fast burning fuse (541) ignites the black powder in the explosive tube (52). After the explosion impact is buffered by the foam material of the explosion-proof tube (53), the fire extinguishing medium (42) is pushed out through the hollow injection hole (2) of the shell (1), and the shell (1) remains intact and not broken. Gas tank pressure mode: The fast burning fuse (541) first melts the glue of the puncture-resistant ring tube (542) attached to the wall of the explosion-proof tube (53), and then the puncture nail (543) pierces the seal of the high-pressure gas cylinder under the action of the compression spring (544). The small high-pressure gas cylinder (55) in the explosive tube (52) releases high-pressure gas, and the middle layer diaphragm of the isolation ball layer (41) is expanded by the air bag, and the liquid package A (4221) and the liquid package B (4222) are mixed to generate foam, which is then squeezed out from the hollow injection hole (2). S4: Special steps for liquid dosage forms When the fire extinguishing medium is the foam generating liquid (422), during the ignition process of the fast burning fuse (541) burning the delayed fuse portion (512), the intermediate isolation membrane (4223) in the isolation ball layer (41) is first burned through by the fast burning fuse (541), so that the A liquid package (4221) and the B liquid package (4222) are mixed to generate foam, and then the foam is ejected through the dynamic action of the explosive tube (52).

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