Water mist and foam dual-purpose fire gun

Abstract

The utility model discloses a water mist and foam dual-purpose fire gun, and belongs to the technical field of fire fighting. A water mist and foam dual-purpose fire gun comprises a gun body seat, an air inlet pipe is arranged on the gun body seat, a pair of liquid inlet channels located on the two sides of the air inlet pipe is installed on the gun body seat, a mixing piece is arranged at the end, away from the air inlet pipe, of the gun body seat, and a mixing barrel is installed at the end, away from the gun body seat, of the mixing piece. A rotating pore plate is arranged at the other end of the mixing barrel, a water spraying pipe is mounted at the other end of the rotating pore plate, and a connecting sleeve connected with the inner circumference of the water spraying pipe is arranged in the rotating pore plate; according to the fire extinguishing gun, a water mist mode and a foam mode are creatively integrated, flexible switching of the two fire extinguishing modes is achieved, firefighters can select the most suitable fire extinguishing mode according to the actual situation in the face of different types of fire disasters, the adaptability of the fire extinguishing gun is greatly improved, the fire extinguishing gun can cope with complex and changeable fire scene, and the fire extinguishing efficiency is improved. The fire extinguishing efficiency and success rate are improved.

Description

Technical Field

[0001] This utility model belongs to the field of fire protection technology, and in particular relates to a fire extinguisher that can be used for both water mist and foam. Background Technology

[0002] In the field of fire protection, technological innovation in fire extinguishing equipment has always been key to improving fire extinguishing efficiency and ensuring personnel safety. Traditional fire extinguishing methods often rely on single water mist or foam extinguishing agents. While these methods can effectively extinguish fires in specific situations, their limitations are becoming increasingly apparent in the face of complex and ever-changing fire scenes. For example, although water mist extinguishing can quickly cool down the fire, improper use in certain fires involving flammable liquids or electrical equipment may exacerbate the fire or lead to the risk of electric shock. While foam extinguishing can effectively isolate oxygen, in some situations, the coverage speed and uniformity of the foam are difficult to guarantee, affecting the fire extinguishing effect.

[0003] In view of this, dual-purpose fire extinguishing equipment that combines the advantages of water mist and foam has gradually emerged in the market. It aims to adapt to the needs of different fire scenarios by flexibly adjusting the type of extinguishing agent and the spraying method. However, existing dual-purpose fire extinguishing equipment still has many shortcomings in structural design and functional implementation. For example, the mixing mechanism of some equipment is complex, the maintenance cost is high, and the mixing effect is not ideal, resulting in a significant reduction in the performance of the extinguishing agent. Summary of the Invention

[0004] The purpose of this invention is to address the problems existing in the prior art by providing a fire extinguisher that can be used for both water mist and foam.

[0005] To achieve the above objectives, the utility model adopts the following technical solution: a water mist and foam dual-purpose fire extinguisher, including a gun body base, an air inlet pipe on the gun body base, a pair of liquid inlet channels located on both sides of the air inlet pipe on the gun body base, a mixing component at the end of the gun body base away from the air inlet pipe, a mixing cylinder at the end of the mixing component away from the gun body base, a rotating orifice plate at the other end of the mixing cylinder, a water spray pipe at the other end of the rotating orifice plate, a connecting sleeve connected to the inner circumference of the water spray pipe inside the rotating orifice plate, a plurality of closing plates at the end of the connecting sleeve near the mixing cylinder, a pull rod between the closing plate and the inner circumference of the rotating orifice plate, and a telescopic gun barrel at the outer circumference of the mixing cylinder.

[0006] By adopting the above technical solution and through the cooperation between various components, the fire extinguisher achieves multi-functionality. This structural design allows the fire extinguisher to flexibly switch between fine water mist mode and foam mode according to different fire extinguishing needs, effectively improving fire extinguishing efficiency and adaptability, and providing firefighters with a convenient and efficient fire extinguishing tool.

[0007] Optionally, the gun body base is cylindrical, and an anti-slip pad is installed on the outer periphery of the gun body base.

[0008] By adopting the above technical solutions, the cylindrical gun body structure is stable, easy to hold and operate, and conforms to the principles of ergonomics; the anti-slip pad effectively increases the friction between the hand and the gun body, preventing the fire extinguisher from slipping due to sweaty hands or the reaction force generated by the spray of extinguishing agent during use, and ensuring that firefighters can stably control the fire extinguisher.

[0009] Optionally, the pair of liquid inlet channels and the air inlet pipe are respectively connected to the mixing cylinder, the air inlet pipe is coaxially arranged with the gun body base, and the pair of liquid inlet channels are symmetrically distributed.

[0010] By adopting the above technical solution, this layout design has many advantages. The coaxial air inlet pipe and gun body base ensure a stable input of compressed air, and the symmetrically distributed liquid inlet channels allow liquid or foam to enter the mixing cylinder evenly and stably. The combination of the two ensures that compressed air and liquid can be fully and evenly mixed in the mixing cylinder, improving the quality of the extinguishing agent and the spray effect. In addition, this symmetrical and coaxial structural layout also enhances the balance and stability of the entire fire extinguisher, reduces vibration and sway caused by component asymmetry, makes the fire extinguisher more stable during use, and extends the service life of the equipment.

[0011] Optionally, the hybrid component includes an outer shell and a pair of support frames mounted on the inner periphery of the outer shell, with a turbine provided between the pair of support frames, and the two ends of the turbine being connected to the pair of support frames respectively via rotating shafts.

[0012] By adopting the above technical solution, the outer shell provides a stable installation environment and protection for the internal components; a turbine is set between a pair of support frames, and the two ends of the turbine are connected to the support frames through rotating shafts, forming an efficient power transmission device. In fine water mist mode and foam mode, liquid and compressed air work together to drive the turbine to rotate, thereby achieving full mixing of the two. The rotation of the turbine not only improves the mixing efficiency, but also ensures the uniformity of the mixing, so that the sprayed extinguishing agent can achieve the best fire extinguishing effect. In addition, this mixing component has a compact and reasonable structure, which is easy to install and maintain, and improves the overall performance and reliability of the fire extinguisher.

[0013] Optionally, the rotating orifice plate is annular, and several rotating brackets are provided on both sides of the rotating orifice plate. The end faces of the water spray pipe and the mixing cylinder are respectively provided with rotating grooves for the rotating brackets to rotate. A pair of rotating groove bottom walls are respectively provided with sealing gaskets, and sealing rings connected to the rotating grooves are respectively provided at both ends of the rotating orifice plate.

[0014] By adopting the above technical solution, the annular rotating orifice plate has a simple structure and is easy to process, and can effectively control the flow path of the extinguishing agent. The cooperation between the rotating bracket and the rotating groove allows the rotating orifice plate to rotate smoothly and accurately when the telescopic gun barrel moves laterally, realizing the closure or opening of the central area. The setting of the sealing gasket and sealing ring effectively prevents the extinguishing agent from leaking during the flow process, ensuring the full utilization of the extinguishing agent and the stability of the spray effect, while avoiding equipment damage and safety hazards caused by leakage.

[0015] Optionally, the outer periphery of the connecting sleeve is provided with a plurality of fixing posts, and the other end of the fixing posts is connected to the inner peripheral wall of the spray pipe.

[0016] By adopting the above technical solution, the fixed column firmly connects the connecting sleeve and the water spray pipe together to form an integral structure that can withstand the impact and reaction force generated when the extinguishing agent is sprayed under high pressure, ensuring the stability and safety of the water spray pipe and the connecting sleeve during use. At the same time, the design of the fixed column can prevent the connecting sleeve from rotating along with the rotating orifice plate and limit the position of the connecting sleeve.

[0017] Optionally, the closing plates are petal-shaped, and the closing plates are connected to the connecting sleeve, the closing plates to the pull rod, and the pull rod to the rotating hole plate by connecting shafts, respectively. The inner side of the rotating hole plate is provided with a groove for the installation of the connecting shaft.

[0018] By adopting the above technical solution, the petal-shaped closing plate can open and close flexibly when the rotating orifice plate rotates, effectively controlling the flow direction and flow rate of the extinguishing agent; the connection method of the connecting shaft enables the closing plate to move synchronously under the drive of the rotating orifice plate, with coordinated and reliable action; the groove setting provides a stable installation position for the connecting shaft, ensuring the stability and accuracy of the closing plate during use. This structure not only improves the working performance of the fire extinguisher, but also enhances its ability to adapt to different fire extinguishing needs.

[0019] Optionally, the inner peripheral wall of the telescopic gun barrel is provided with a rotating groove and a directional groove, the outer peripheral wall of the rotating orifice plate is equipped with a rotating slider that cooperates with the rotating groove, and the outer peripheral wall of the mixing cylinder is equipped with a directional seat that cooperates with the directional groove.

[0020] By adopting the above technical solution, the cooperation between the rotating groove and the rotating slider ensures that the rotating orifice plate can rotate smoothly in the predetermined direction when the telescopic gun barrel moves laterally, realizing the closure or opening of the central area; the cooperation between the directional groove and the directional seat ensures the stable position of the mixing cylinder in the telescopic gun barrel, so that it can perform the mixing function normally in different modes. This motion control structure improves the automation level and operation convenience of the fire extinguisher, and ensures that the fire extinguisher moves accurately and reliably during mode switching, providing a strong guarantee for efficient fire extinguishing.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] 1. This fire extinguisher innovatively integrates a fine water mist mode and a foam mode into one unit. Through a unique structural design, it achieves flexible switching between the two fire extinguishing methods. When facing different types of fires, firefighters can choose the most suitable fire extinguishing mode according to the actual situation. For example, when extinguishing initial fires and controlling the spread of fire, the fine water mist mode can be used, utilizing the rapid cooling and oxygen-isolating properties of water mist to control the fire in a timely manner. When facing special fires such as oil fires, the foam mode can be switched to, using the covering and isolating effect of foam to effectively prevent oxygen from entering and achieve the purpose of extinguishing the fire. This multi-functional integrated design greatly enhances the adaptability of the fire extinguisher, enabling it to cope with complex and ever-changing fire scenes and improving fire extinguishing efficiency and success rate.

[0023] 2. The design and optimization of each component of the fire extinguisher ensures efficient mixing and stable spraying of the extinguishing agent. The coaxial arrangement of the air inlet pipe and the gun body base, as well as the symmetrical distribution of the liquid inlet channel, allows compressed air and liquid or foam to enter the mixing cylinder evenly and stably. After thorough mixing, the sprayed extinguishing agent has a higher quality and better fire extinguishing effect. The turbine design in the mixing component rotates under the combined action of liquid and compressed air, further improving mixing efficiency and uniformity, and ensuring the full performance of the extinguishing agent.

[0024] 3. The rotating groove and directional groove on the inner circumferential wall of the telescopic gun barrel cooperate with the rotating slider of the rotating orifice plate and the directional seat of the mixing cylinder to realize the motion control of the rotating orifice plate and the mixing cylinder during the lateral movement of the telescopic gun barrel. This highly automated motion control structure ensures that the fire extinguisher moves accurately and reliably during mode switching, without the need for complicated manual operation and adjustment, greatly shortening the fire extinguishing preparation time and providing a strong guarantee for efficient fire extinguishing. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the fire extinguisher of this utility model;

[0026] Figure 2 This is a schematic diagram of the cross-sectional structure of the gun body base of this utility model;

[0027] Figure 3 This is a front view structural diagram of the hybrid component of this utility model;

[0028] Figure 4 This is a schematic diagram of the connection structure between the mixing cylinder and the rotating orifice plate of this utility model;

[0029] Figure 5 This is a schematic diagram of the cross-sectional structure of the mixing cylinder, rotating orifice plate, and spray pipe of this utility model;

[0030] Figure 6 This utility model Figure 5 Enlarged structural diagram at point A in the middle;

[0031] Figure 7 This is a schematic diagram of the connection structure between the rotating perforated plate and the connecting sleeve of this utility model;

[0032] Figure 8 This is a schematic diagram of the distribution structure of the rotating slots of this utility model;

[0033] Figure 9 This is a schematic diagram of the directional groove distribution structure of this utility model.

[0034] In the diagram: 1. Gun body base; 101. Anti-slip pad; 2. Air inlet pipe; 3. Liquid inlet channel; 4. Mixing component; 41. Outer shell; 42. Support frame; 43. Turbine; 5. Mixing cylinder; 501. Orientation seat; 6. Rotating orifice plate; 601. Rotating bracket; 602. Rotary groove; 603. Sealing gasket; 604. Sealing ring; 605. Rotating slider; 7. Water spray pipe; 8. Connecting sleeve; 801. Fixing post; 9. Closing plate; 901. Connecting shaft; 10. Pull rod; 1001. Groove; 11. Telescopic gun barrel; 1101. Rotating groove; 1102. Orientation groove. Detailed Implementation

[0035] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0036] In the description of this utility model, it should be noted that the terms "middle", "upper", "lower", "left", "right", "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.

[0037] like Figure 1 As shown in Figure 9, the specific solution of the embodiment is as follows: A fire extinguisher that can be used for both water mist and foam includes a gun body base 1. The gun body base 1 is cylindrical. As the basic component of the entire fire extinguisher, the gun body base 1 adopts a cylindrical design. This shape is not only structurally stable and convenient for overall layout planning, but also conforms to the ergonomic principle. When held, it can naturally fit the curve of the hand, providing firefighters with a comfortable holding experience and reducing hand fatigue during long-term use.

[0038] An anti-slip pad 101 is installed on the outer periphery of the gun body base 1. The anti-slip pad 101 installed on the outer periphery of the gun body base 1 is made of a material with a high coefficient of friction, which effectively increases the friction between the hand and the gun body. In actual fire extinguishing operations, firefighters often sweat under tension, or their hands become unstable due to the strong reaction force generated by the spray of extinguishing agent. The anti-slip pad 101 can effectively prevent the fire extinguisher from slipping, ensuring that firefighters can stably control the fire extinguisher and accurately aim it at the fire source. This improves the accuracy and reliability of fire extinguishing operations, reduces safety hazards caused by operational errors, and provides a solid operational foundation for efficient fire extinguishing.

[0039] The gun body base 1 is provided with an air inlet pipe 2, and a pair of liquid inlet channels 3 located on both sides of the air inlet pipe 2 are installed on the gun body base 1. The liquid inlet channels 3 allow foam or water to flow through. The pair of liquid inlet channels 3 and the air inlet pipe 2 are respectively connected to the mixing cylinder 5. The air inlet pipe 2 and the gun body base 1 are coaxially arranged, and the pair of liquid inlet channels 3 are symmetrically distributed.

[0040] The air inlet pipe 2 is coaxially arranged with the gun body base 1. This layout ensures that compressed air can be stably input along the central axis of the gun body base 1, providing a uniform and continuous power source for the subsequent mixing and spraying of the extinguishing agent. A pair of liquid inlet channels 3 are symmetrically distributed on both sides of the air inlet pipe 2 and are connected to the mixing cylinder 5. This symmetrical design allows liquid or foam to enter the mixing cylinder 5 uniformly and stably. During the fire extinguishing process, whether it is water or foam mixture, it can enter the mixing cylinder 5 at the same flow rate and volume through these symmetrical liquid inlet channels 3, and mix fully and uniformly with the compressed air in the mixing cylinder 5, improving the quality and spraying effect of the extinguishing agent. This symmetrical and coaxial structural layout also enhances the balance and stability of the entire fire extinguishing gun, reduces vibration and sway caused by component asymmetry, makes the fire extinguishing gun more stable during use, extends the service life of the equipment, and ensures the continuity and reliability of fire extinguishing operations.

[0041] The gun body base 1 is provided with a mixing component 4 at the end away from the air intake pipe 2. The mixing component 4 includes an outer shell 41 and a pair of support frames 42 installed on the inner circumference of the outer shell 41. The outer shell 41 is threadedly connected to the gun body base 1. A turbine 43 is provided between the pair of support frames 42. The two ends of the turbine 43 are respectively connected to the pair of support frames 42 through rotating shafts. A mixing cylinder 5 is installed at the end of the mixing component 4 away from the gun body base 1. The mixing cylinder 5 is threadedly connected to the outer shell 41.

[0042] The mixing component 4 is one of the core components of the fire extinguisher. The outer shell 41 is threadedly connected to the gun body 1, and the mixing cylinder 5 is threadedly connected to the outer shell 41. This connection method not only provides a stable installation environment but also facilitates disassembly and maintenance when needed, improving the maintainability of the equipment. A pair of support frames 42 are installed on the inner circumference of the outer shell 41, and a turbine 43 is provided between them. The two ends of the turbine 43 are connected to the support frames 42 through rotating shafts, forming an efficient power transmission device. In the fine water mist mode and foam mode, liquid and compressed air work together to drive the turbine 43 to rotate, thereby achieving full mixing of the two. The rotation of the turbine 43 not only improves the mixing efficiency and ensures the uniformity of the mixture, enabling the sprayed extinguishing agent to achieve the best fire extinguishing effect, but also the power generated by its rotation helps to promote the flow of the extinguishing agent in the mixing cylinder 5, further improving the spray speed and coverage of the extinguishing agent. In addition, this mixing component 4 has a compact and reasonable structure, and the fit between the components is tight and stable, improving the overall performance and reliability of the fire extinguisher and providing a strong guarantee for efficient fire extinguishing.

[0043] The other end of the mixing cylinder 5 is provided with a rotating orifice plate 6, which is annular. Several rotating brackets 601 are provided on both sides of the rotating orifice plate 6. The end faces of the water spray pipe 7 and the mixing cylinder 5 are respectively provided with rotating grooves 602 for the rotating brackets 601 to rotate. A pair of rotating grooves 602 are respectively provided with sealing gaskets 603 on their bottom walls. The two ends of the rotating orifice plate 6 are respectively provided with sealing rings 604 connected to the rotating grooves 602.

[0044] The cooperation between the rotating groove 602 and the rotating bracket 601 allows the rotating orifice plate 6 to rotate smoothly and accurately when the telescopic gun barrel 11 moves laterally, realizing the closure or opening of the central area. When the rotating orifice plate 6 rotates, its edge is tightly fitted with the inner circumference of the spray pipe 7, ensuring the stability and directionality of the extinguishing agent during the flow process. The sealing gasket 603 and sealing ring 604 effectively prevent the extinguishing agent from leaking during the flow process, ensuring the full utilization of the extinguishing agent and the stability of the spray effect. At the same time, it avoids equipment damage and safety hazards caused by leakage, and improves the reliability and safety of the fire extinguisher.

[0045] A water spray pipe 7 is installed at the other end of the rotating orifice plate 6. A connecting sleeve 8 is provided inside the rotating orifice plate 6 and connected to the inner circumference of the water spray pipe 7. A plurality of fixing posts 801 are provided on the outer circumference of the connecting sleeve 8. The other end of the fixing posts 801 is connected to the inner circumferential wall of the water spray pipe 7. A plurality of closing plates 9 are provided at the end of the connecting sleeve 8 near the mixing cylinder 5. The closing plates 9 are petal-shaped. The closing plates 9 are connected to the connecting sleeve 8, the closing plates 9 are connected to the pull rod 10, and the pull rod 10 is connected to the rotating orifice plate 6 by connecting shafts 901. A groove 1001 for the connecting shaft 901 is opened on the inner side of the rotating orifice plate 6. A pull rod 10 is provided between the closing plates 9 and the inner circumference of the rotating orifice plate 6.

[0046] The cooperation between the pull rod 10 and the closing plate 9 allows the closing plate 9 to open and close flexibly when the rotating orifice plate 6 rotates, effectively controlling the flow direction and flow rate of the extinguishing agent. When the rotating orifice plate 6 rotates clockwise, the closing plate 9 closes the central area under the action of the pull rod 10, guiding the extinguishing agent to spray out fine water mist through the edge area; when the rotating orifice plate 6 rotates counterclockwise, the closing plate 9 opens the central area, allowing the extinguishing agent to smoothly pass through the central area and spray out foam mixture. The connection method of the connecting shaft 901 ensures that the closing plate 9 moves synchronously under the action of the rotating orifice plate 6, with coordinated and reliable action. The setting of the groove 1001 provides a stable installation position for the connecting shaft 901, ensuring the stability and accuracy of the closing plate 9 during use. This structure not only improves the working performance of the fire extinguisher, but also enhances its ability to adapt to different fire extinguishing needs, making the spraying of the extinguishing agent more precise and effective, and enabling flexible adjustment of the fire extinguishing strategy according to the specific situation at the fire scene, thereby improving fire extinguishing efficiency.

[0047] The outer periphery of the mixing cylinder 5 is provided with a telescopic gun barrel 11. The front ends of the telescopic gun barrel 11 and the water spray pipe 7 are frustoconical. The inner peripheral wall of the telescopic gun barrel 11 is provided with a rotating groove 1101 and a directional groove 1102. The outer periphery of the rotating orifice plate 6 is equipped with a rotating slider 605 that cooperates with the rotating groove 1101. The outer periphery of the mixing cylinder 5 is equipped with a directional seat 501 that cooperates with the directional groove 1102. A push block is installed at one end of the telescopic gun barrel 11 near the mixing cylinder 5. The diameter of the push block is larger than the diameter of the telescopic gun barrel 11.

[0048] The design of the telescopic barrel 11 allows the rotating orifice plate 6 to rotate smoothly in a predetermined direction during lateral movement, achieving the closure or opening of the central area. Simultaneously, it ensures the stable position of the mixing cylinder 5 within the telescopic barrel 11, enabling it to perform its mixing function normally in different modes. The front ends of both the telescopic barrel 11 and the water spray pipe 7 are frustoconical, a design that helps guide the spray direction of the extinguishing agent, making it more concentrated and powerful. A push block is installed at the end of the telescopic barrel 11 near the mixing cylinder 5. The diameter of the push block is larger than that of the telescopic barrel 11. This design increases the contact area between the push block and the sliding groove of the rotating orifice plate 6, ensuring the stability and reliability of the push block when pushing the rotating orifice plate 6 to rotate. This further improves the accuracy and effectiveness of the motion control of the telescopic barrel 11. This highly automated motion control structure eliminates the need for complex manual operations and adjustments, significantly shortening the fire extinguishing preparation time and providing a strong guarantee for efficient fire extinguishing. It also improves the ease of operation and intelligence of the fire extinguisher, allowing firefighters to focus more on the fire extinguishing task itself, thus enhancing overall fire extinguishing efficiency and safety.

[0049] The fire extinguishing steps for the above-mentioned fire extinguisher are as follows:

[0050] Install the fire extinguisher on the corresponding fire extinguishing device, reliably connect the air inlet pipe 2 to the compressed air source, seal the connection, and connect a pair of liquid inlet channels 3 to the foam device and water supply device respectively according to the fire extinguishing requirements. When connecting, ensure that the interface is tight and there is no leakage. At the same time, pay attention to the firmness of the connection to prevent the connection from loosening during high-pressure spraying.

[0051] Push the telescopic gun barrel 11 to move laterally towards the end near the water inlet. The sliding groove of the rotating orifice plate 6 inside the telescopic gun barrel 11 pushes the rotating orifice plate 6 to rotate clockwise. The movable baffle in the rotating orifice plate 6 seals the central area, ensuring that the extinguishing agent can only be sprayed out through the edge area, thus preparing for the fine water mist mode.

[0052] Turn on the compressed air source and water supply device, turn off the foam device, and adjust the pressure of the supply source to a suitable working pressure to ensure that the compressed air and water can enter the mixing drum 5 with sufficient pressure.

[0053] Water and compressed air are fully mixed under the rotation of the turbine shaft 43. The mixed extinguishing agent is sprayed outward through the edge area of ​​the rotating orifice plate 6 and the telescopic gun barrel 11 to cover the fire source area and control the spread of the fire.

[0054] Push the telescopic gun barrel 11 to move laterally away from the water inlet. The sliding groove of the rotating orifice plate 6 inside the telescopic gun barrel 11 pushes the rotating orifice plate 6 to rotate counterclockwise. The movable baffle in the rotating orifice plate 6 opens the central area, allowing the extinguishing agent to be sprayed out through the central area, preparing for the foam mode.

[0055] Turn on the compressed air source and foam mixing device, and turn off the water supply device. Similarly, adjust the pressure of the supply source to a suitable working pressure to ensure that the compressed air and foam mixture can enter the mixing cylinder 5 with sufficient pressure.

[0056] The foam mixture and compressed air are fully mixed under the rotation of the turbine shaft 43. The mixed foam mixture is then sprayed outward through the central area of ​​the rotating orifice plate 6 and the telescopic gun barrel 11 to achieve the purpose of extinguishing the fire.

[0057] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fire extinguisher that can be used for both water mist and foam, characterized in that, The gun includes a gun body base, on which an air inlet pipe is provided. A pair of liquid inlet channels located on both sides of the air inlet pipe are installed on the gun body base. A mixing component is provided at one end of the gun body base away from the air inlet pipe. A mixing cylinder is installed at one end of the mixing component away from the gun body base. A rotating orifice plate is provided at the other end of the rotating orifice plate. A water spray pipe is installed at the other end of the rotating orifice plate. A connecting sleeve connected to the inner circumference of the water spray pipe is provided inside the rotating orifice plate. Several closing plates are provided at one end of the connecting sleeve near the mixing cylinder. A pull rod is provided between the closing plate and the inner circumference of the rotating orifice plate. A telescopic gun barrel is provided on the outer circumference of the mixing cylinder.

2. The fire extinguisher that can be used for both water mist and foam as described in claim 1, characterized in that: The gun body base is cylindrical, and an anti-slip pad is installed on the outer periphery of the gun body base.

3. The water mist and foam dual-purpose fire extinguisher according to claim 1, characterized in that: The pair of liquid inlet channels and the air inlet pipe are respectively connected to the mixing cylinder. The air inlet pipe is coaxially arranged with the gun body base, and the pair of liquid inlet channels are symmetrically distributed.

4. The fire extinguisher that can be used for both water mist and foam according to claim 1, characterized in that: The hybrid component includes an outer shell and a pair of support frames mounted on the inner periphery of the outer shell. A turbine is provided between the pair of support frames, and the two ends of the turbine are respectively connected to the pair of support frames via rotating shafts.

5. The fire extinguisher that can be used for both water mist and foam according to claim 1, characterized in that: The rotating orifice plate is annular, and several rotating brackets are provided on both sides of the rotating orifice plate. The end faces of the water spray pipe and the mixing cylinder are respectively provided with rotating grooves for the rotating brackets to rotate. A pair of rotating groove bottom walls are respectively provided with sealing gaskets, and sealing rings connected to the rotating grooves are provided at both ends of the rotating orifice plate.

6. The fire extinguisher that can be used for both water mist and foam according to claim 1, characterized in that: The outer periphery of the connecting sleeve is provided with several fixing posts, and the other end of the fixing posts is connected to the inner peripheral wall of the water spray pipe.

7. A water mist and foam dual-purpose fire extinguisher according to claim 1, characterized in that: The closing plates are petal-shaped. The closing plates are connected to the connecting sleeve, the closing plates to the pull rod, and the pull rod to the rotating hole plate via connecting shafts. The inner side of the rotating hole plate has a groove for mounting the connecting shaft.

8. A water mist and foam dual-purpose fire extinguisher according to claim 1, characterized in that: The inner circumferential wall of the telescopic gun barrel is provided with a rotating groove and a directional groove, the outer circumference of the rotating orifice plate is equipped with a rotating slider that cooperates with the rotating groove, and the outer circumference of the mixing cylinder is equipped with a directional seat that cooperates with the directional groove.

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