Ignition components and fire extinguishers

Abstract

This utility model relates to the field of fire protection equipment technology, providing an ignition assembly and a fire extinguisher. The ignition assembly includes a main body, an ignition tube, a heat conduction wire, and an initiator. When a fire occurs and the temperature rises to a specific value, the initiator ignites the heat conduction wire, which then transmits the ignition signal to the ignition tube. This allows the ignition tube to generate high temperatures, driving the gas-generating agent in the fire extinguisher to produce a large amount of gas, thereby spraying the extinguishing agent to achieve the purpose of extinguishing the fire. Compared with existing ignition assemblies, by disassembling and inserting the initiator into the second channel of the mounting component, the initiator can be optionally omitted before the product is fully installed. Furthermore, the initiator and ignition tube are stored separately, preventing accidental activation of the ignition tube and improving the safety and reliability of the ignition assembly during storage and installation.

Description

Technical Field

[0001] This utility model belongs to the field of fire protection equipment technology, and in particular relates to an ignition component and a fire extinguisher. Background Technology

[0002] Currently, fire extinguishers are classified into pressurized fire extinguishers and non-pressurized fire extinguishers based on the materials they store internally. Non-pressurized fire extinguishers, because they do not store pressurized gas or liquid, significantly improve safety. The working principle of a non-pressurized fire extinguisher involves storing a gas-generating agent and incorporating an ignition component. When the temperature rises to a specific value in the early stages of a fire, the ignition component activates the gas-generating agent, producing a large amount of gas that propels the extinguishing agent outwards to extinguish the fire. However, most existing ignition components suffer from technical problems related to safety and reliability. Utility Model Content

[0003] The purpose of this invention is to provide an ignition component and a fire extinguisher, which aims to solve the technical problems of poor safety and reliability of existing ignition components during use.

[0004] This utility model is implemented as follows: Firstly, an ignition assembly is provided, comprising an mounting component, an ignition tube, a heat conduction wire, and an initiator. The ignition tube is disposed inside a fire extinguisher, and the mounting component is installed outside the fire extinguisher. The mounting component has a first channel, a first end of which is connected to the interior of the fire extinguisher. At least a portion of the initiator is detachably inserted into the second end of the first channel. The first end of the heat conduction wire is connected to the ignition tube, and the second end of the heat conduction wire extends into the first channel.

[0005] In an optional embodiment, a limiting component is also detachably provided at the second end of the mounting component. The limiting component is installed to limit the initiator when it is inserted into the first channel, so as to prevent the initiator from coming out of the first channel.

[0006] In an optional embodiment, the limiting component includes a limiting sleeve and a blocking part. The detachable limiting sleeve is fitted onto the end of the mounting member away from the fire extinguisher, and the blocking part is connected to the limiting sleeve and is used to block the movement path of the initiator.

[0007] In an alternative embodiment, a connecting component is further provided at the first end of the mounting component, and the connecting component is used to connect the mounting component to the housing of the fire extinguisher.

[0008] In an optional embodiment, the connecting assembly includes a connector and a clamping member. The connector includes a first part and a second part. The first part is provided with a mounting groove, and the mounting member is inserted and detached into the mounting groove. The second part is used to penetrate the outer shell of the fire extinguisher. The clamping member is installed on the portion of the second part located inside the fire extinguisher and is used to clamp the outer shell of the fire extinguisher with the first part. The connector is also provided with a second channel, which is used to communicate between the first channel and the internal space of the fire extinguisher.

[0009] In an optional embodiment, a gas-sealing component is provided in the first channel. The gas-sealing component is located between the initiator and the second end of the heat conduction wire. The gas-sealing component has a first state and a second state. When the gas-sealing component is in the first state, the initiator can ignite the second end of the heat conduction wire. When the gas-sealing component is in the second state, the gas-sealing component seals the first channel to prevent the gas generated in the fire extinguisher from leaking from the first channel.

[0010] In one optional embodiment, the air-tightening assembly includes a working chamber, a sealing ball, a forward energy block, and a reverse energy block. The working chamber is located within the first channel, the sealing ball is movably disposed within the working chamber, an air-tightening port is provided at the end of the working chamber facing the initiator, and an air outlet is provided at the end of the working chamber away from the initiator. The forward energy block is disposed between the sealing ball and the air-tightening port, and the reverse energy block is located between the sealing ball and the air outlet.

[0011] In one optional embodiment, the working chamber includes a first cylinder and a second cylinder, the first end of the first cylinder is open, the first end of the second cylinder is open, and the first end of the first cylinder is inserted into the opening of the first end of the second cylinder, the air-closing port is located at the second end of the first cylinder, and the air outlet is located at the second end of the second cylinder.

[0012] In an alternative embodiment, the ignition tube includes a housing and a metallic heat agent, the metallic heat agent being used to generate high-temperature molten slag upon ignition.

[0013] In a second aspect, a fire extinguisher is provided, comprising the ignition component described in any of the preceding claims.

[0014] The technical advantages of this invention compared to existing technologies are as follows: By placing the ignition tube inside the fire extinguisher and installing the mounting component outside the fire extinguisher, a first channel is provided on the mounting component. Then, the first end of the heat conduction wire is connected to the ignition tube, and the second end of the heat conduction wire extends to the first channel. Finally, the working end of the igniter is disassembled and inserted into the first channel. When a fire occurs and the temperature rises to a specific value, the igniter can ignite the heat conduction wire, and then transmit the ignition signal to the ignition tube through the heat conduction wire. This allows the ignition tube to generate high temperatures, driving the gas-generating agent in the fire extinguisher to produce a large amount of gas, thereby spraying out the extinguishing agent to achieve the purpose of extinguishing the fire. Compared with existing ignition components, by disassembling and inserting the igniter into the second channel on the mounting component, the igniter can be optionally not installed before the product is fully installed, and the igniter and ignition tube are stored separately, avoiding accidental activation of the ignition tube and improving the safety and reliability of the ignition component during storage and installation.

[0015] It is understandable that the beneficial effects of the second aspect mentioned above can be found in the relevant descriptions in the first aspect mentioned above, and will not be repeated here. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a cross-sectional structural schematic diagram of the ignition assembly provided in this embodiment of the utility model;

[0018] Figure 2 yes Figure 1 Enlarged structural diagram at point A;

[0019] Figure 3 This is a schematic diagram of the structure of the fire extinguisher provided in this embodiment of the utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Mounting component; 11. First channel; 2. Limiting component; 21. Limiting sleeve; 22. Blocking part; 3. Connecting component; 31. Connecting part; 311. First part; 312. Second part; 32. Clamping part; 33. Second channel; 34. Mounting groove; 4. Air-tightening component; 41. Working chamber; 411. First cylinder; 412. Second cylinder; 42. Sealing ball; 43. Forward energy block; 44. Reverse energy block; 45. Air-tightening port; 46. Air outlet; 5. Ignition tube; 6. Initiator; 7. Heat conduction wire; 8. Outer shell; 9. Gas generating agent. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0023] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0027] Please refer to Figures 1 to 2 As shown in the present invention, in a first aspect, an ignition assembly is provided, which includes a mounting component 1, an ignition tube 5, a heat conduction wire 7, and an initiator 6. The ignition tube 5 is used to be disposed inside the fire extinguisher, the mounting component 1 is used to be installed outside the fire extinguisher, the mounting component 1 has a first channel 11, the first end of the first channel 11 is used to communicate with the inside of the fire extinguisher, at least a portion of the initiator 6 is detachably inserted into the second end of the first channel 11, the first end of the heat conduction wire 7 is connected to the ignition tube 5, and the second end of the heat conduction wire 7 extends into the first channel 11.

[0028] Specifically, mounting component 1 can refer to a component of a certain length, and can be rod-shaped, column-shaped, or block-shaped. Mounting component 1 can be connected to the fire extinguisher's outer shell by means of snap-fit, welding, or threaded connection. First channel 11 refers to a channel structure of a certain length, which generally runs through the entire mounting component 1 along its axial direction. Ignition tube 5 refers to a component or assembly that can drive the gas-generating agent to produce gas; ignition tube 5 initiates the reaction of the gas-generating agent by generating high temperatures. Initiator 6 refers to a component or assembly that can emit an initial ignition signal; initiator 6 can be an electric initiator 6 that uses electrical energy for ignition, for example, using the same structure as a fully enclosed igniter. Initiator 6 can also be a thermal initiator 6 that uses thermal energy for ignition, such as using a heat conduction wire. Heat conduction wire 7 refers to a component that can transmit the initial ignition signal, such as a fuse. Heat conduction wire 7 amplifies the initial ignition energy through its own stable combustion or heat conduction, ensuring that the ignition tube 5, which is originally difficult to ignite directly, is reliably ignited.

[0029] The ignition assembly provided in this embodiment of the invention involves placing an ignition tube 5 inside the fire extinguisher and installing a mounting component 1 outside the fire extinguisher. A first channel 11 is also provided on the mounting component 1. The first end of a heat conduction wire 7 is then connected to the ignition tube 5, and the second end of the heat conduction wire 7 extends into the first channel 11. Finally, the working end of an initiator 6 is detached and inserted into the first channel 11. When a fire occurs and the temperature rises to a specific value, the second end of the heat conduction wire 7 can be ignited by the initiator 6. The ignition signal is then transmitted to the ignition tube 5 via the heat conduction wire 7, causing the ignition tube 5 to generate high temperatures that drive the gas-generating agent in the fire extinguisher to produce a large amount of gas, thereby spraying the extinguishing agent to achieve the purpose of extinguishing the fire. Compared with existing ignition components, by installing the mounting component 1 on the outside of the fire extinguisher and removing and inserting the initiator 6 into the first channel 11 on the mounting component 1, the initiator 6 can be left uninstalled before the fire extinguisher is installed. Furthermore, the initiator 6 is stored separately from the ignition tube 5, which prevents the ignition tube 5 from reacting due to accidental triggering. This improves the safety and reliability of the ignition component during storage and construction.

[0030] It should be noted that when the ignition assembly reaches its service life and needs to be removed, the initiator 6 can be removed from the first channel 11 first. This can prevent the ignition tube 5 from being accidentally triggered during the removal of the fire extinguisher, thus improving the safety of the fire extinguisher during removal and the safety of the operators.

[0031] Furthermore, by detaching and inserting the igniter 6 into the first channel 11 on the mounting component 1, the two can be easily separated. This allows the fire extinguisher to be equipped with different types of igniters 6 depending on the usage situation, improving the extinguisher's applicability. Simultaneously, during the production of the ignition assembly, each component can be manufactured separately, enabling unmanned and automated production lines for the ignition assembly. This allows for mass production through group assembly, and the production process is easily standardized. It also solves the problems of complex production arrangements, large inventories of various models, and the inability to select product input methods later, resulting in a final type-based inventory and large-scale stockpiling of parts, significantly reducing production and inventory costs.

[0032] In one embodiment, see Figure 1 and Figure 2A limiting component 2 is also detachably installed at the second end of the mounting component 1. The limiting component 2 is installed to limit the initiator 6 when it is inserted into the first channel 11, so as to prevent the initiator 6 from coming out of the first channel 11. Specifically, the limiting component 2 refers to a part or structure that can limit an object. In this embodiment, by providing the limiting component 2 on the mounting component 1, and by also detachably connecting the limiting component 2 to the mounting component 1, the limiting component 2 can be removed before the initiator 6 is inserted into the first channel 11, and then installed on the mounting component 1 after the initiator 6 is inserted into the first channel 11, thereby limiting the initiator 6. Without affecting the normal disassembly of the initiator 6, the installation of the initiator 6 can be made more stable.

[0033] In one embodiment, see Figure 2 The limiting component 2 includes a limiting sleeve 21 and a blocking part 22. The limiting sleeve 21 is detachably fitted onto the end of the mounting member 1 away from the outer shell of the fire extinguisher. The blocking part 22 is connected to the limiting sleeve 21 and is used to block the movement path of the initiator 6. Specifically, the limiting sleeve 21 refers to an annular component with a certain diameter, and the blocking part 22 refers to a component with a certain volume. The blocking part 22 is usually an integral structure with the limiting sleeve 21 and can be arranged radially along the limiting sleeve 21. In this embodiment, by dividing the limiting component 2 into two parts, the limiting sleeve 21 and the blocking part 22, the limiting sleeve 21 is detachably connected to the mounting member 1 by fitting onto the outside of the mounting member 1, and the blocking part 22 prevents the initiator 6 from coming out of the first channel 11 by blocking the movement path of the initiator 6.

[0034] In an optional embodiment, please refer to Figure 2 The limiting sleeve 21 and the mounting part 1 are connected by threads. By connecting the limiting sleeve 21 and the mounting part 1 by threads, the installation and disassembly of the two are made more convenient.

[0035] In one embodiment, see Figure 1 The first end of the mounting component 1 is also provided with a connecting component 3, which is used to connect the mounting component 1 to the outer shell of the fire extinguisher. Specifically, the connecting component 3 refers to a part or assembly that can connect two objects. The connecting component 3 can achieve the connection of two objects through threaded connection, snap-fit, or plug-in connection. In this embodiment, when the outer shell of the fire extinguisher is relatively thin, by installing the connecting component 3 on the outer shell of the fire extinguisher and then connecting the mounting component 1 to the connecting component 3, the insufficient contact area and insufficient connection strength caused by the thinness of the outer shell of the fire extinguisher can be avoided, making the installation of the mounting component 1 on the outside of the fire extinguisher more secure and reliable.

[0036] In one embodiment, see Figure 2The connecting component 3 includes a connector 31 and a clamping member 32. The connector 31 includes a first part 311 and a second part 312. The first part 311 is located outside the fire extinguisher's outer shell and has an installation groove 34. The mounting member 1 is inserted into the installation groove 34. The first end of the second part 312 is connected to the first part 311, and the second end is used to penetrate the fire extinguisher's outer shell. The clamping member 32 is installed on the part of the second part 312 located inside the fire extinguisher and is used to clamp the fire extinguisher's outer shell with the first part 311 to fix the connecting component 3. The connector 31 also has a second channel 33, which is used to connect the first channel 11 with the internal space of the fire extinguisher.

[0037] Specifically, both connector 31 and clamping member 32 refer to components with a certain volume, and their shapes can be columnar or block-like. The first part 311 and the second part 312 refer to two different sections on connector 31. Mounting groove 34 refers to a groove structure with a certain depth. The second channel 33 refers to a channel structure with a certain length, and it generally extends through both the first part 311 and the second part 312, with both ends of the second channel 33 being open.

[0038] In this embodiment, by placing the first part 311 of the connector 31 outside the fire extinguisher, and then connecting the first end of the second part 312 to the first part 311, with the second end extending through the outer shell of the fire extinguisher into its interior, and installing the clamping member 32 on the portion of the second part 312 inside the fire extinguisher, the connector 312 clamps the outer shell of the fire extinguisher with the first part 311 to secure the connector 3. Finally, the mounting member 1 is inserted into the mounting groove 34, connecting the mounting member 1 to the outer shell of the fire extinguisher via the connector 31. Simultaneously, the second channel 33 connects the first channel 11 to the internal space of the fire extinguisher, ensuring the mounting member 1 is securely installed while making its installation more convenient and faster.

[0039] In an optional embodiment, please refer to Figure 2 The mounting component 1 is threadedly connected to the inner wall of the mounting groove 34, making it easier and more secure to install the mounting component 1 into the mounting groove 34. Meanwhile, the clamping component 32 has a mounting through hole, and the second part 312 passes through the mounting through hole. The outer wall of the second part 312 is also threadedly connected to the inner wall of the mounting through hole, making the connection between the clamping component 32 and the second part 312 easier and more secure, thereby making the overall installation of the connecting assembly 3 easier and more secure.

[0040] In one embodiment, see Figure 1An airtight assembly 4 is provided within the first channel 11. The airtight assembly 4 is located between the initiator 6 and the second end of the heat conduction wire 7. The airtight assembly 4 has a first state and a second state. When the airtight assembly 4 is in the first state, the initiator 6 can ignite the second end of the heat conduction wire 7. When the airtight assembly 4 is in the second state, it seals the first channel 11 to prevent gas leakage from the containment space. Specifically, the airtight assembly 4 refers to a component or assembly that can seal the channel under specific conditions. In this embodiment, an airtight assembly 4 is provided in the first channel 11, and it is located between the initiator 6 and the second end of the heat conduction wire 7. The airtight assembly 4 is in the first state before the initiator 6 ignites the second end of the heat conduction wire 7. When the ignition tube 5 heats the gas-generating agent to generate gas, the airtight assembly 4 is in the second state to seal the first channel 11, preventing gas generated in the fire extinguisher from leaking from the first channel 11, making the use of the fire extinguisher more convenient and safer.

[0041] In one embodiment, see Figure 2 The air-tightening component 4 includes a working chamber 41, a sealing ball 42, a forward energy block 43, and a reverse energy block 44. The working chamber 41 is located in the first channel 11. The sealing ball 42 is movably disposed in the working chamber 41. An air-tightening port 45 is provided at the end of the working chamber 41 facing the initiator 6, and an air outlet 46 is provided at the end of the working chamber 41 away from the initiator 6. The forward energy block 43 is disposed between the sealing ball 42 and the air-tightening port 45, and the reverse energy block 44 is disposed between the sealing ball 42 and the air outlet 46.

[0042] Specifically, the working chamber 41 refers to a shell structure with a certain amount of accommodating space. The working chamber 41 can be a separate component installed in the first channel 11 by means of clamping, welding, or friction connection. The working chamber 41 can also be an integral structure with the mounting component 1, or it can be said to be part of the mounting component 1. The air closure port 45 and the air outlet port 46 both refer to open structures with a certain area. The size of the air closure port 45 and the air outlet port 46 can be smaller than the size of the sealing ball 42. The sealing ball 42 refers to a spherical component with a certain diameter. The forward energy block 43 and the reverse energy block 44 refer to block-shaped components made of flammable materials, such as those made by pressing gunpowder powder. The shapes of the forward energy block 43 and the reverse energy block 44 match the internal shape of the working chamber 41.

[0043] In this embodiment, a working chamber 41 with an air-closing port 45 and an air-outlet 46 at both ends is provided in the first channel 11. A sealing ball 42 is movably disposed in the working chamber 41, and after the sealing ball 42 is installed inside the working chamber 41, there is usually a gap between the sealing ball 42 and the inner wall of the working chamber 41. At the same time, a forward energy block 43 is provided between the sealing ball 42 and the air-closing port 45, and a reverse energy block 44 is provided between the sealing ball 42 and the air-outlet 46. The sealing ball 42 is clamped and fixed by the forward energy block 43 and the reverse energy block 44. When the initiator 6 is activated, the forward energy block 43 can be ignited first. Since the forward energy block 43 and the reverse energy block 44 are separated only by a sealing ball 42, the reverse energy block 44 can be ignited after the forward energy block 43 is ignited. The second end of the heat conduction wire 7 can then be ignited after the reverse energy block 44 is ignited. At the same time, the high-pressure gas generated by the reverse energy block 44 can push the sealing ball 42 towards the air-sealing port 45, so that the sealing ball 42 seals the air-sealing port 45. The air-sealing assembly 4 adopts the above structure, which can not only achieve the sealing function, but also play the role of energy transfer, making the triggering of the ignition tube 5 in the fire extinguisher more convenient and the use of the ignition assembly safer.

[0044] In one embodiment, see Figure 2 The working chamber 41 includes a first cylindrical body 411 and a second cylindrical body 412. The first end of the first cylindrical body 411 is open, and the first end of the second cylindrical body 412 is open. The first end of the first cylindrical body 411 is inserted into the opening of the first end of the second cylindrical body 412. An air-sealing port 45 is located at the second end of the first cylindrical body 411, and an air outlet 46 is located at the second end of the second cylindrical body 412. Specifically, both the first cylindrical body 411 and the second cylindrical body 412 refer to cylindrical structures with a certain length. In this embodiment, by inserting the first end of the first cylindrical body 411 into the opening of the first end of the second cylindrical body 412, the assembly of the working chamber 41 is made more convenient, and the assembly of the air-sealing component 4 is also made more convenient.

[0045] In one embodiment, see Figure 2The ignition tube 5 includes a receiving tube and a metallic thermoelectric agent, which generates high-temperature molten slag upon ignition. Specifically, the receiving tube is a tubular component with a certain volume, and at least one end of the receiving tube is open. The metallic thermoelectric agent is a mixture that can undergo an aluminothermic reaction upon ignition. The metallic thermoelectric agent can be an aluminothermic agent or a zirconium thermoelectric agent, etc. In this embodiment, the metallic thermoelectric agent is filled into the receiving tube, and the first end of the heat conduction wire 7 extends into the receiving tube through the opening at the end of the receiving tube to contact the metallic thermoelectric agent. When it is necessary to ignite the gas-generating agent, the metallic thermoelectric agent can be ignited through the heat conduction wire 7, so that the metallic thermoelectric agent generates high-temperature molten slag during combustion, which directly contacts the ignition surface and provides sustained heat energy. By using a metallic thermoelectric agent, the metallic thermoelectric agent itself does not absorb water, solving the problem of insufficient ignition performance caused by water absorption in traditional ignition packs. Compared to existing ignition charges, the higher reaction trigger temperature of the metallic thermoelectric agent results in stronger high-temperature resistance and improved reliability, significantly increasing both the reliability and duration of action. It also exhibits excellent resistance to vibration, strong structural stability, and will not break, detach, or undergo internal structural changes. Furthermore, by incorporating a receiving tube around the metallic thermoelectric agent, the opening at the end of the receiving tube can be sealed by compression or plugging after the metallic thermoelectric agent and heat conduction wire 7 are installed within it, thus enhancing the overall waterproof performance of the ignition tube 5.

[0046] Secondly, please refer to Figure 3 A fire extinguisher is provided, comprising the ignition assembly described in any of the preceding claims. The mounting component 1 is installed on the exterior of the fire extinguisher, and the ignition tube 5 is disposed inside the fire extinguisher. The beneficial effects of the second aspect described above can be found in the relevant description of the first aspect above, and will not be repeated here.

[0047] The above are merely preferred embodiments of the present utility model, and only specifically describe the technical principles of the present utility model. These descriptions are only for explaining the principles of the present utility model and should not be construed as limiting the scope of protection of the present utility model in any way. Based on this explanation, any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model, as well as other specific embodiments of the present utility model that can be conceived by those skilled in the art without creative effort, should be included within the scope of protection of the present utility model.

Claims

1. An ignition assembly, characterized in that, The device includes a mounting component, an ignition tube, a heat conduction wire, and an initiator. The ignition tube is installed inside the fire extinguisher, and the mounting component is installed outside the fire extinguisher. The mounting component has a first channel, with a first end of the first channel communicating with the inside of the fire extinguisher. At least a portion of the initiator is detachably inserted into the second end of the first channel. The first end of the heat conduction wire is connected to the ignition tube, and the second end of the heat conduction wire extends into the first channel.

2. The ignition assembly as described in claim 1, characterized in that, A limiting component is also detachably provided at the second end of the mounting component. The limiting component is installed to limit the initiator when the initiator is inserted into the first channel, so as to prevent the initiator from coming out of the first channel.

3. The ignition assembly as described in claim 2, characterized in that, The limiting component includes a limiting sleeve and a blocking part. The detachable limiting sleeve is fitted onto the end of the mounting piece away from the fire extinguisher. The blocking part is connected to the limiting sleeve and is used to block the movement path of the initiator.

4. The ignition assembly as described in claim 1, characterized in that, The first end of the mounting component is also provided with a connecting component, which is used to connect the mounting component to the outer shell of the fire extinguisher.

5. The ignition assembly as described in claim 4, characterized in that, The connecting assembly includes a connector and a clamping member. The connector includes a first part and a second part. The first part is provided with a mounting groove, and the mounting member is inserted and detached into the mounting groove. The second part is used to penetrate the outer shell of the fire extinguisher. The clamping member is installed on the part of the second part located inside the fire extinguisher and is used to clamp the outer shell of the fire extinguisher with the first part. The connector is also provided with a second channel, which is used to communicate between the first channel and the internal space of the fire extinguisher.

6. The ignition assembly as claimed in claim 1, characterized in that, An airtight assembly is provided in the first channel. The airtight assembly is located between the initiator and the second end of the heat conduction wire. The airtight assembly has a first state and a second state. When the airtight assembly is in the first state, the initiator can ignite the second end of the heat conduction wire. When the airtight assembly is in the second state, the airtight assembly seals the first channel to prevent the gas generated in the fire extinguisher from leaking out of the first channel.

7. The ignition assembly as described in claim 6, characterized in that, The air-tightening assembly includes a working chamber, a sealing ball, a forward energy block, and a reverse energy block. The working chamber is located within the first channel, and the sealing ball is movably disposed within the working chamber. An air-tightening port is provided at the end of the working chamber facing the initiator, and an air outlet is provided at the end of the working chamber away from the initiator. The forward energy block is disposed between the sealing ball and the air-tightening port, and the reverse energy block is disposed between the sealing ball and the air outlet.

8. The ignition assembly as described in claim 7, characterized in that, The working chamber includes a first cylinder and a second cylinder. The first end of the first cylinder is open, the first end of the second cylinder is open, and the first end of the first cylinder is inserted into the opening of the first end of the second cylinder. The air-closing port is located at the second end of the first cylinder, and the air outlet is located at the second end of the second cylinder.

9. The ignition assembly according to any one of claims 1 to 8, characterized in that, The ignition tube includes a housing and a metallic hot agent, which is used to generate high-temperature molten slag after being ignited.

10. A fire extinguisher, characterized in that, Includes the ignition assembly as described in any one of claims 1 to 9.

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