Hand-throwing fire extinguishing bomb

Abstract

The invention discloses a hand-throwing fire extinguishing bomb. The hand-throwing fire extinguishing bomb comprises a shell and an igniter, a storage cavity is formed in the shell and used for storing a fire extinguishing agent, and an injection opening is formed in the shell and communicates with the storage cavity; the detonating device comprises a connecting piece, an ignition assembly and a blasting assembly, the connecting piece is in threaded connection with the injection opening, the ignition assembly is arranged in the connecting piece, the blasting assembly is arranged in the storage cavity and used for exploding the shell, the blasting assembly is connected and communicated with the ignition assembly, the ignition assembly is used for igniting the blasting assembly, and one end of the blasting assembly is provided with a protruding part; the protruding part is formed by extending in the radial direction, extends out of the injection opening, is arranged at the end of the injection opening in the axial direction and is used for blocking the storage cavity, and when the connecting piece is connected with the injection opening, the protruding part is located in the connecting piece and is extruded between the end of the injection opening and the ignition assembly in the axial direction.

Description

Technical Field

[0001] The present application relates to the technical field of fire fighting equipment, and more particularly, to a hand-thrown fire extinguishing bomb. Background Art

[0002] In the fields of military, civilian, and forest fire fighting, especially in environments such as various weapon transport vehicles, isolation rooms inside ships, and roadways where the space is narrow and there are a large number of gasoline or flammable and explosive substances, the fire hazards are particularly serious. For example, in specific scenarios such as engine compartments, cargo holds, kitchens, ammunition transport vehicles, electrical cabinets, and forest fire fronts, although firefighters are equipped with corresponding fire fighting equipment, it is difficult to completely eliminate the fire source deep in the fire, especially in inaccessible corners or narrow spaces, increasing the risk of fire spread and posing a great threat to personnel and equipment.

[0003] The assembly process of existing traditional hand-thrown fire extinguishing bombs is complex, with high requirements for the professional knowledge and skills of assembly personnel. Especially in emergency situations, firefighters may not be able to quickly complete the assembly of the fire extinguishing bomb and cannot effectively respond to the fire situation.

[0004] Therefore, how to improve the assembly efficiency of the fire extinguishing bomb to enhance the fire extinguishing effect is a technical problem that needs to be urgently solved by those skilled in the art. Summary of the Invention

[0005] An object of the present application is to provide a new technical solution for a hand-thrown fire extinguishing bomb.

[0006] According to the first aspect of the present application, there is provided a hand-thrown fire extinguishing bomb. The hand-thrown fire extinguishing bomb includes a shell and a detonating device; a storage cavity is provided in the shell for storing a fire extinguishing agent, and an injection port is provided in the shell and is communicated with the storage cavity; the detonating device includes a connecting member, an ignition assembly, and a blasting assembly. The connecting member is threadedly connected to the injection port. The ignition assembly is disposed in the connecting member. The blasting assembly is disposed in the storage cavity for bursting the shell. The blasting assembly is connected and conducted with the ignition assembly. The ignition assembly is used for igniting the blasting assembly. Wherein, one end of the blasting assembly has a protruding portion formed by extending in the radial direction. The protruding portion extends out of the injection port and is axially disposed at the end of the injection port for blocking the storage cavity. When the connecting member is connected to the injection port, the protruding portion is located in the connecting member and is axially pressed between the end of the injection port and the ignition assembly.

[0007] Optionally, the blasting assembly includes a central tube filled with pyrotechnic composition. The igniter of the detonating device extends into the central tube and is buried in the pyrotechnic composition. When one end of the central tube penetrates the injection port and is located in the storage cavity, the axis of the central tube coincides with the axis of the storage cavity.

[0008] Optionally, a partition is provided inside the connecting member. The partition divides the inside of the connecting member into an installation cavity and a connecting cavity in the axial direction. The ignition assembly is arranged in the installation cavity. When the connecting member is connected to the injection port, the injection port and the protruding portion are located in the connecting cavity, and the protruding portion is axially pressed between the partition and the end of the injection port.

[0009] Optionally, the hand-thrown fire extinguishing bomb further includes a sealing member sleeved on the central tube. When the central tube is embedded in the injection port, the sealing member is pressed between the protruding portion and the end of the injection port, and the sealing member is used to seal the storage cavity.

[0010] Optionally, the sealing member is made of an elastic material. The inner diameter of the sealing member is adapted to the outer diameter of the central tube, and the outer diameter of the sealing member is larger than the inner diameter of the injection port.

[0011] Optionally, the ignition assembly includes a detonation control module and a power supply module. The detonation control module is in communication with the power supply module, and the detonation control module and the power supply module are axially clamped inside the connecting member.

[0012] Optionally, the detonation control module is provided with a plug-and-pull safety pin for controlling the opening and closing of the detonation control module. The power supply module is provided with a switch for controlling the opening and closing of the power supply module. The detonation of the blasting assembly is jointly controlled by the plug-and-pull safety pin and the switch.

[0013] Optionally, one end of the connecting member facing away from the housing has a retaining cap. The retaining cap is detachably connected to one end of the connecting member facing away from the injection port, and the switch is located on the side of the detonation control module close to the retaining cap.

[0014] Optionally, the connecting member is provided with a connecting hole for threading a lifting rope.

[0015] In the embodiment of the present application, the fire extinguishing agent is injected into the storage cavity of the housing through the injection port. After the filling of the fire extinguishing agent is completed, one end of the blasting component is inserted into the storage cavity through the injection port, and the end of the blasting component with the protruding part is placed on the end of the injection port to block the storage cavity through the protruding part. The connecting piece with the ignition component inside is threadedly connected to the injection port, so that the ignition component and the end of the injection port axially press the protruding part to limit the position of the protruding part in the axial direction, thereby strengthening the connection strength between the protruding part and the end of the injection port and preventing the fire extinguishing agent from spilling out through the injection port during the transportation or throwing of the fire bomb.

[0016] According to the above content, by inserting one end of the blasting component into the storage cavity and placing the protruding part at the other end on the end of the injection port, not only can the blasting component be detonated by the ignition component to break the housing so that the fire extinguishing agent can be effectively sprayed, but also the storage cavity filled with the fire extinguishing agent can be blocked by the protruding part. And through the connection between the connecting piece and the injection port, the ignition component and the end of the injection port limit the position of the protruding part in the axial direction to enhance the connection strength between the protruding part and the end of the injection port, thereby effectively blocking the storage cavity during the assembly process, effectively simplifying the blocking steps, reducing the assembly difficulty of the fire bomb, and further improving the assembly efficiency of the fire bomb.

[0017] In addition, inserting one end of the blasting component into the storage cavity not only facilitates the ignition component to fully break the housing when igniting the blasting component, but also forms a radial impact on the fire extinguishing agent centered on the blasting component, so that the fire extinguishing agent can be fully dispersed when the housing breaks, increasing the coverage area of the fire extinguishing agent and improving the fire extinguishing effect.

[0018] Other features and advantages of the present application will become clear through the following detailed description of the exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings incorporated in and constituting a part of this specification illustrate embodiments of the present application and, together with the description, serve to explain the principles of the present application.

[0020] Figure 1 is the explosion diagram of the hand-thrown fire bomb in the embodiment of the present application;

[0021] Figure 2 is Figure 1 the schematic cross-sectional structure diagram of

[0022] Figure 3 is the assembly diagram of the hand-thrown fire bomb in the embodiment of the present application;

[0023] Figure 4 is Figure 3 the schematic cross-sectional structure diagram of

[0024] Figure 5 yes Figure 4 Enlarged schematic diagram of part A.

[0025] Description of reference numerals:

[0026] 1-housing; 11-storage chamber; 12-injection port;

[0027] 2-detonation device; 21-connecting piece; 211-installation cavity; 212-partition plate; 213-connection cavity; 214-connection hole; 22-ignition assembly; 221-detonation control module; 222-power module; 23-blasting assembly; 231-center tube; 232-protrusion;

[0028] 3-Block cap;

[0029] 4- Seals. DETAILED DESCRIPTION

[0030] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0031] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present application, its application, or uses.

[0032] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0033] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0034] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0035] According to an embodiment of the present application, a hand-thrown fire extinguishing bomb is provided. The hand-thrown fire extinguishing bomb includes a housing 1 and a detonating device 3. The housing 1 has a storage cavity 11 therein for storing a fire extinguishing agent. An injection port 12 is provided in the housing 1, and the injection port 12 communicates with the storage cavity 11. The detonating device 3 includes a connecting member 21, an ignition assembly 22, and an explosion assembly 23. The connecting member 21 is threadedly connected to the injection port 12. The ignition assembly 22 is disposed within the connecting member 21. The explosion assembly 23 is disposed in the storage cavity 11 for bursting the housing 1. The explosion assembly 23 is connected to and in communication with the ignition assembly 22, and the ignition assembly 22 is used to ignite the explosion assembly 23. Wherein, one end of the explosion assembly 23 has a protruding portion 232, which extends in the radial direction. The protruding portion 232 extends out of the injection port 12 and is axially disposed at the end of the injection port 12 for blocking the storage cavity 11. When the connecting member 21 is connected to the injection port 12, the protruding portion 232 is located within the connecting member 21 and is axially pressed between the end of the injection port 12 and the ignition assembly 22.

[0036] As Figures 1 to 5 shown, the housing 1 is in the shape of a cylindrical barrel, and the top of the housing 1 is hemispherical, so as to increase the space of the storage cavity 11 and increase the storage capacity of the fire extinguishing agent. The bottom of the housing 1 is set as a hemispherical shape that is recessed towards the storage cavity 11, so as to be stably placed during transportation and storage, improve the stability of the hand-thrown fire extinguishing bomb, and reduce the occurrence of situations such as the bursting of the housing 1 caused by collision.

[0037] Of course, in the embodiment of the present application, the housing 1 is not limited to the above structure, and those skilled in the art can set it according to actual needs. For example, the housing 1 can also be spherical, square, columnar, etc.

[0038] The housing 1 is made of a material with excellent moisture-proof performance, such as ABS

[0039] (Acrylonitrile Butadiene Styrene, acrylonitrile-butadiene-styrene copolymer) or PC (Polycarbonate, polycarbonate) material. The outer shell made of the above moisture-proof material can not only effectively prevent the fire extinguishing agent in the storage cavity 11 from being affected by moisture, ensure that the hand-thrown bomb can function normally, but also will not generate metal fragments or lethal fragments when the hand-thrown fire extinguishing bomb bursts, ensuring the safety of personnel.

[0040] The inhibitor that can be accommodated in the storage cavity 11 in the housing 1 can be a powder-based fire extinguishing agent, a water-based fire extinguishing agent, a gel fire extinguishing agent, a foam fire extinguishing agent, etc.

[0041] In the embodiment of the present application, the fire extinguishing agent is injected into the storage cavity 11 of the housing 1 through the injection port 12. After the filling of the fire extinguishing agent is completed, one end of the blasting component 23 is inserted into the storage cavity 11 through the injection port 12, and the end of the blasting component 23 with the protruding portion 232 is placed on the end of the injection port 12 to block the storage cavity 11 through the protruding portion 232. The connecting member 21 with the ignition component 22 provided therein is threadedly connected to the injection port 12, so that the ignition component 22 axially presses the protruding portion 232 against the end of the injection port 12 to limit the position of the protruding portion 232 in the axial direction, thereby strengthening the connection strength between the protruding portion 232 and the end of the injection port 12 and preventing the fire extinguishing agent from spilling out through the injection port 12 during the transportation or dropping of the fire bomb.

[0042] The injection port 12 is in the shape of a hollow column, and the axis of the injection port 12 coincides with the axis of the housing 1. When the blasting component 23 is inserted into the storage cavity 11, the axis of the blasting component 23 coincides with the axis of the storage cavity 11. One end of the blasting component 23 is inserted into the injection port 12 so that the blasting component 23 is located at the center of the storage cavity 11. When the ignition component 22 ignites the blasting component 23, it can not only fully break the housing 1 through the blasting component 23, making the housing 1 break evenly and reducing the blockage of large housing 1 fragments to the spraying of the fire extinguishing agent, but also form a radial impact on the fire extinguishing agent centered on the blasting component 23, so that the fire extinguishing agent can be fully dispersed when the housing 1 breaks, thereby increasing the coverage area of the fire extinguishing agent and improving the fire extinguishing effect.

[0043] The protruding portion 232 is in the shape of a circular plate and is provided at one end of the blasting component 23 protruding from the injection port 12. When the connecting member 21 is connected to the housing 1, the protruding portion 232 is embedded in the connecting member 21. Through the protruding portion 232, not only the position of the blasting component 23 in the axial direction can be limited, but also the ignition component 22 can be supported, preventing the ignition component 22 from shaking axially in the connecting member 21 during transportation or throwing, effectively improving the connection stability between the ignition component 22 and the blasting component 23, and improving the reliability of the hand-thrown fire bomb.

[0044] Of course, in the embodiment of the present application, the protruding portion 232 is not limited to the above structure, and those skilled in the art can set it according to actual needs. For example, the protruding portion 232 is in the shape of a ring, the inner wall of the protruding portion 232 is fixedly connected to the outer wall of the end of the blasting component 23 extending out of the injection port 12, or the protruding portion 232 is integrally formed with the blasting component 23.

[0045] The outer wall of the injection port 12 is provided with an external thread, and the connecting member 21 has an open end. The inner wall of the open end is provided with an internal thread adapted to the external thread. The connecting member 21 is threadedly connected to the injection port 12 to gradually press the protruding portion 232 during the connection process, limit the position of the protruding portion 232 in the axial direction, and block the storage cavity 11.

[0046] According to the above content, it can be known that by embedding one end of the blasting component 23 in the storage cavity 11 and the protrusion 232 at the other end is arranged on the end of the injection port 12, not only can the blasting component 23 be detonated by the ignition component 22 to burst the shell 1 so that the fire extinguishing agent is effectively sprayed, but the storage cavity 11 filled with the fire extinguishing agent can also be sealed by the protrusion 232, and through the connection between the connecting piece 21 and the injection port 12, the ignition component 22 and the end of the injection port 12 limit the position of the protrusion 232 in the axial direction to enhance the connection strength between the protrusion 232 and the end of the injection port 12, thereby achieving effective sealing of the storage cavity 11 during the assembly process, effectively simplifying the sealing steps, reducing the difficulty of assembling the fire extinguishing bomb, and thus improving the assembly efficiency of the fire extinguishing bomb.

[0047] In one example, the blasting assembly 23 includes a center tube 231, which is filled with pyrotechnics, and the igniter of the detonating device 3 extends into the center tube 231 and is buried in the pyrotechnics, wherein when one end of the center tube 231 passes through the injection port 12 and is located in the storage chamber 11, the axis of the center tube 231 coincides with the axis of the storage chamber 11.

[0048] like Figure 1 , Figure 2 and Figure 4 As shown, the central tube 231 is in the shape of a hollow column, and pyrotechnics is filled in the central tube 231, so that the amount of pyrotechnics arranged in the axial direction in the storage chamber 11 is consistent, so as to fully blast the shell 1, and avoid uneven amounts of pyrotechnics resulting in fragments of different sizes of the shell 1, so that large pieces of pyrotechnics block the spraying of the fire extinguishing agent.

[0049] The center tube 231 has a first end and a second end along the axial direction. The first end of the center tube 231 is tapered so that when the blasting assembly 23 and the shell 1 are assembled, the center tube 231 can be inserted into the fire extinguishing agent in the storage chamber 11. The protrusion 232 is arranged at the second end of the center tube 231. The second end of the center tube 231 can also be blocked by the plate-shaped protrusion 232 to prevent the pyrotechnic powder from leaking during transportation or throwing.

[0050] When the central tube 231 is fitted into the injection port 12, the axis of the central tube 231 coincides with the axis of the storage cavity 11. The central tube 231 is made of polypropylene (PP for short), or it can also be polyethylene (PE for short) or ABS resin (acrylonitrile butadiene styrene plastic, ABS for short). The central tube 231 is filled with pyrotechnic composition. The central tube 231 made of the above-mentioned materials with the properties of degradable plastics can not only facilitate the insertion into the storage cavity 11 to burst the housing 1, so that the central tube 231 filled with pyrotechnic composition is placed at the center of the storage cavity 11, but also realize the blasting of the housing 1 by the central tube 231 through the ignition component 22 to ignite the pyrotechnic composition. This not only facilitates the full blasting of the housing 1 by the blasting component 23, but also can effectively block the pyrotechnic composition and the fire extinguishing agent through the central tube 231, prevent the fire extinguishing agent from affecting the blasting effect of the pyrotechnic composition, and effectively improve the explosion effect of the pyrotechnic composition.

[0051] Of course, in the embodiment of the present application, the central tube 231 is not limited to the above structure, and those skilled in the art can set it according to actual needs. For example, the central tube 231 can also be made of degradable materials such as polylactide (PLA for short), polyhydroxyalkanoates (PHA for short), polycaprolactone (PCL for short), polybutylene succinate (PBS), polyvinyl alcohol (PVA for short).

[0052] In an example, a partition 212 is arranged in the connector 21. The partition 212 axially divides the inside of the connector 21 into an installation cavity 211 and a connection cavity 213. The ignition component 22 is arranged in the installation cavity 211. When the connector 21 is connected to the injection port 12, the injection port 12 and the protrusion 232 are located in the connection cavity 213, and the protrusion 232 is axially pressed between the partition 212 and the end of the injection port 12.

[0053] Such as Figure 2 、 Figure 4 and Figure 5As shown, an annular partition 212 is provided inside the connecting member 21, and the outer wall of the annular partition 212 is fixedly connected to the inner wall of the connecting member 21. The connecting member 21 and the partition 212 may also be integrally formed. Above the partition 212 is an installation cavity 211 for placing the ignition assembly 22, and below the partition 212 is a connection cavity 213. When the connecting member 21 is connected to the injection port 12, the protrusion 232 on the central tube 231 is located in the connection cavity 213. The outer diameter of the protrusion 232 is larger than the inner diameter of the partition 212 and also larger than the inner diameter of the injection port 12. By axially squeezing the protrusion 232 along the axial direction by the end of the injection port 12 and the partition 212, the connection strength between the protrusion 232 and the end of the injection port 12 is effectively enhanced, preventing the fire extinguishing agent from spilling out through the gap between the injection port 12 and the protrusion 232.

[0054] Of course, in the embodiment of the present application, the partition 212 is not limited to the above structure, and those skilled in the art can set it according to actual needs. For example, the partition 212 is a circular plate. In the state where the connecting member 21 is connected to the injection port 12, the second end of the central tube 231 abuts against the lower surface of the partition 212, and the pyrotechnic composition in the central tube 231 is blocked by the partition 212.

[0055] A card slot is provided in the installation cavity 211 to facilitate fixing the ignition assembly 22 in the installation cavity 211. The ignition assembly 22 is connected to the blasting assembly 23 through a connecting wire passing through the inner hole of the partition 212. By setting the card slot to limit the position of the ignition assembly 22 in the installation cavity 211, it effectively prevents the ignition assembly 22 from shaking in the installation cavity 211 during transportation or throwing, affecting the connection stability between the ignition assembly 22 and the blasting assembly 23, and effectively improving the reliability of the hand-thrown fire extinguishing bomb.

[0056] Of course, in the embodiment of the present application, the connection manner between the ignition assembly 22 and the blasting assembly 23 is not limited to the above, and those skilled in the art can set it according to actual needs. For example, the ignition assembly 22 has a signal transmitting device, and the blasting assembly 23 has a signal receiving device, and the housing 1 is blasted through the signal connection between the two.

[0057] In an example, the hand-thrown fire extinguishing bomb further includes a seal 4. The seal 4 is sleeved on the central tube 231. When the central tube 231 is embedded in the injection port 12, the seal 4 is squeezed between the protrusion 232 and the end of the injection port 12, and the seal 4 is used to seal the storage cavity 11.

[0058] Such as Figures 1 to 5As shown, the seal 4 is disposed between the protruding portion 232 and the end of the injection port 12. The protruding portion 232 and the end of the injection port 12 axially squeeze the seal 4 to block the gap between the protruding portion 232 and the injection port 12, effectively improving the sealing effect of the storage cavity 11 and preventing the extinguishing agent in the storage cavity 11 from getting damp and becoming ineffective during transportation and storage.

[0059] In one example, the seal 4 is made of an elastic material. The inner diameter of the seal 4 is adapted to the outer diameter of the central tube 231, and the outer diameter of the seal 4 is larger than the inner diameter of the injection port 12.

[0060] As Figures 1 to 5 shown, the seal 4 is a sealing ring made of an elastic material, such as rubber, silicone, etc. The sealing ring is sleeved on the central tube 231, and its outer diameter is larger than the inner diameter of the injection port 12, so that the top of the sealing ring abuts against the lower surface of the protruding portion 232 and the top of the end of the injection port 12, so as to axially squeeze the sealing ring by the protruding portion 232 and the end of the injection port 12, causing the sealing ring to elastically deform to fill the gap between the protruding portion 232 and the end of the injection port 12, realizing effective sealing of the storage cavity 11.

[0061] In one example, in the state where the connector 21 is connected to the housing 1, the inner wall of the connector 21 abuts against the outer circumferential surface of the seal 4.

[0062] In the actual example of the present application, by the seal 4 abutting against the inner wall of the connector 21 and through the cooperation between the connector 21 and the seal 4 in the radial direction, the sealing effect between the protruding portion 232 and the end of the injection port 12 is further enhanced.

[0063] In one example, the ignition assembly 22 includes a detonation control module 221 and a power supply module 222. The detonation control module 221 is connected to the power supply module 222, and the detonation control module 221 and the power supply module 222 are axially clamped in the connector 21.

[0064] As Figures 1 to 4 shown, the detonation control module 221 includes a detonator controller, a connecting wire and an igniter. The igniter is embedded in the pyrotechnic composition of the central tube 231. The detonator controller is connected to the igniter through the connecting wire and conducted to control the opening of the igniter. The power supply module 222 is used to supply electric energy to the detonator controller.

[0065] The power supply module 222 is an alkaline dry battery or a carbon zinc dry battery, which does not need to be frequently charged and maintained, has a long effective time, and is convenient for storage.

[0066] The detonation control module 221 and the power supply module 222 are arranged along the axial direction so as to reduce the radial dimension of the connecting member 21 and facilitate the operator to pick up and grasp it for operation.

[0067] Of course, in the embodiment of the present application, the detonation control module 221 and the power supply module 222 are not limited to the above structure, and those skilled in the art can make settings according to actual needs.

[0068] In one example, the detonation control module 221 has a plug-in safety pin, which is used to control the opening and closing of the detonation control module 221. The power module 222 is provided with a switch, which is used to control the opening and closing of the power module 222; wherein the detonation of the blasting assembly 23 is jointly controlled by the plug-in safety pin and the switch.

[0069] In the embodiment of the present application, the plug-in safety pin is used to control the opening and closing of the detonation controller, and the switch is used to control the opening and closing of the power module 222. The blasting assembly 23 is controlled by plug-in safety pin and switch.

[0070] When the hand-thrown fire extinguishing bomb is used, the switch is turned on, and the safety pin is not turned on, and the blasting assembly 23 of the hand-thrown fire extinguishing bomb is in a closed state.

[0071] When the hand-thrown fire extinguishing bomb is used, the plug-in safety pin is opened, and when the switch is not turned on, the blasting assembly 23 of the hand-thrown fire extinguishing bomb is in a closed state.

[0072] When using the hand-thrown fire extinguishing bomb, turn on the switch, and there is a safety protection time (for example, the safety protection time is two seconds) after the plug-in and pull-out safety pin. The throwing can be canceled by turning off the switch of the power module 222 within the safety time. During the safety time, the hand-thrown fire extinguishing bomb will not explode due to impact and vibration.

[0073] When using the hand-thrown fire extinguishing bomb, turn on the switch, pull out the safety pin and there is a safety protection time (for example, the safety protection time is two seconds). After the safety time, when the hand-thrown fire extinguishing bomb is impacted, vibrated or contacts other objects, the detonation controller will start the igniter to detonate the pyrotechnic powder in the central tube 231, thereby bursting the shell 1 and causing the fire extinguishing agent stored in the storage to burst out to extinguish the fire.

[0074] When using the hand-thrown fire extinguishing bomb, turn on the switch, plug and pull out the safety pin, and there is a safety protection time (for example, the safety protection time is two seconds). After the safety time, if there is no contact with other objects, it will explode after a few seconds to carry out fire extinguishing work.

[0075] In one example, one end of the connecting member 21 facing away from the housing 1 is provided with a retaining cap 3, the retaining cap 3 is detachably connected to one end of the connecting member 21 facing away from the injection port 12, and the switch is located on a side of the initiation control module 221 close to the retaining cap 3.

[0076] As Figures 1 to 4 shown, the connecting member 21 is a hollow column, its bottom is threadedly connected to the injection port 12, and a retaining cap 3 is threadedly connected to the top. By providing the retaining cap 3 to protect the ignition assembly 22, it can not only prevent impurities such as droplets from entering the ignition assembly 22 during transportation and storage, but also provide protection against accidental touch of the components of the ignition assembly 22, avoiding accidental detonation of the hand-thrown fire extinguishing bomb in a non-use environment, and effectively improving the safety of the hand-thrown fire extinguishing bomb.

[0077] In one example, a connection hole 214 is formed in the connecting member 21 for threading a suspension rope.

[0078] As Figures 1 to 4 shown, the connecting member 21 is provided with holes for threading a rope for easy carrying, effectively improving the adaptability of the hand-thrown fire extinguishing bomb.

[0079] In the present application, in terms of the ignition method of the hand-thrown fire extinguishing bomb, the traditional method of igniting the gunpowder column with a fuse is abandoned, and the electronic control detonation technology is adopted to accurately control the initiation time, solving the problem of failure or inconsistent initiation time of the hand-thrown fire extinguishing bomb caused by reasons such as the fuse not being able to be lit, the gunpowder column having different compositions, or being affected by moisture.

[0080] In summary, the hand-thrown fire extinguishing bomb of the present application has the advantages of moisture resistance, good fire extinguishing effect, accurate initiation time, etc., and can more effectively cope with fire situations and protect people's lives and property safety.

[0081] Although some specific embodiments of the present application have been described in detail by way of examples, those skilled in the art should understand that the above examples are only for illustration purposes and not for limiting the scope of the present application. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A hand-thrown fire extinguishing bomb, characterized in that, Comprising: A housing (1) having a storage cavity (11) therein for storing a fire extinguishing agent. An injection port (12) is provided in the housing (1), and the injection port (12) communicates with the storage cavity (11). An ignition device (2) including a connecting member (21), an ignition assembly (22), and an explosion component (23). The connecting member (21) is threadedly connected to the injection port (12). The ignition assembly (22) is disposed within the connecting member (21). The explosion component (23) is disposed in the storage cavity (11) for bursting the housing (1). The explosion component (23) is connected and electrically conductive to the ignition assembly (22), and the ignition assembly (22) is used to ignite the explosion component (23). Wherein, one end of the explosion component (23) has a protruding portion (232) formed by extending in the radial direction. The protruding portion (232) extends out of the injection port (12) and is axially disposed at the end of the injection port (12) for blocking the storage cavity (11). When the connecting member (21) is connected to the injection port (12), the protruding portion (232) is located within the connecting member (21) and is axially squeezed between the end of the injection port (12) and the ignition assembly (22).

2. The hand-thrown fire extinguishing bomb according to claim 1, wherein, The explosion component (23) includes a central tube (231) filled with pyrotechnic composition. The igniter of the ignition device (2) extends into the central tube (231) and is embedded in the pyrotechnic composition. Wherein, when one end of the central tube (231) penetrates the injection port (12) and is located in the storage cavity (11), the axis of the central tube (231) coincides with the axis of the storage cavity (11).

3. The hand-thrown fire extinguishing bomb according to claim 2, characterized in that, A partition (212) is provided in the connecting member (21). The partition (212) axially divides the interior of the connecting member (21) into an installation cavity (211) and a connection cavity (213). The ignition assembly (22) is disposed in the installation cavity (11). When the connecting member (21) is connected to the injection port (12), the injection port (12) and the protruding portion (232) are located in the connection cavity (213), and the protruding portion (232) is axially squeezed between the partition (212) and the end of the injection port (12).

4. The hand-thrown fire extinguishing bomb according to claim 2, characterized in that, It further includes a seal (4) sleeved on the central tube (231). When the central tube (231) is embedded in the injection port (12), the seal (4) is squeezed between the protruding portion (232) and the end of the injection port (12). The seal (4) is used to seal the storage cavity (11).

5. The hand-thrown fire extinguishing bomb according to claim 4, characterized in that, The seal (4) is made of an elastic material. The inner diameter of the seal (4) is adapted to the outer diameter of the central tube (231), and the outer diameter of the seal (4) is larger than the inner diameter of the injection port (12).

6. The hand-thrown fire extinguishing bomb according to claim 1, wherein, The ignition assembly (22) includes a detonation control module (221) and a power supply module (222). The detonation control module (221) is in communication with the power supply module (222), and the detonation control module (221) and the power supply module (222) are axially clamped within the connector (21).

7. The hand-thrown fire extinguishing bomb according to claim 6, characterized in that, The detonation control module (221) is provided with a plug-in safety pin for controlling the opening and closing of the detonation control module (221). The power supply module (222) is provided with a switch for controlling the opening and closing of the power supply module (222); Among them, the detonation of the blasting assembly (23) is jointly controlled by the plug-in safety pin and the switch.

8. The hand-thrown fire extinguishing bomb according to claim 7, characterized in that, One end of the connector (21) facing away from the housing (1) is provided with a retaining cap (3). The retaining cap (3) is detachably connected to one end of the connector (21) facing away from the injection port, and the switch is located on the side of the detonation control module (221) close to the retaining cap (3).

9. The hand-thrown fire extinguishing bomb according to claim 1, wherein, The connector (21) is provided with a connection hole (214) for passing a suspension rope.

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