A spray head, a spray assembly employing the spray head, and firefighting equipment

Abstract

The utility model discloses a spray head, adopt the spray assembly and fire control equipment of this spray head. The spray head includes spray head body, and is provided with in spray head body: at least one gas flow channel, and gas flow channel is used for conveying gas, at least one fire extinguishing medium flow channel, and fire extinguishing medium flow channel is used for conveying medium, and the setting mode of gas flow channel and fire extinguishing medium flow channel in spray head body is parallel flow of gas in gas flow channel and medium in fire extinguishing medium flow channel as standard. The spray head of the utility model can make fire extinguishing medium more flexible and centrally reach the ignition point by simple and practical structure design, and the spray head is combined with the conveying mechanism through the "L" type connecting pipe, and the formed spray assembly can be flexibly applied to multiple scenes. Or, the spray assembly is further combined on the box type structure that can load fire extinguishing medium, which can be fixed in a certain place for fire control, and also can realize the walking function in a certain area range.

Description

Technical Field

[0001] This utility model relates to the field of sprinkler head and fire-fighting equipment technology, specifically to a sprinkler head, a spray assembly using the sprinkler head, and fire-fighting equipment. Background Technology

[0002] Outdoor electric vehicle sheds, new energy charging stations, production lines, and warehouses are all critical locations with dense electrical equipment and complex electrical wiring. High temperatures and friction can easily ignite fires. Traditional fire extinguishing devices, such as fire monitors and handheld fire extinguishers, often struggle to respond quickly and control fires in these complex and large-scale environments. In emergencies, the lengthy process of connecting to the pipeline network significantly delays the crucial window for fire suppression, severely reducing firefighting efficiency. Especially in electric vehicle sheds and new energy charging stations, where electrical distribution is scattered, small fires in localized corners are easily overlooked. Often, by the time a fire is discovered, it has already spread. If a fire cannot be extinguished quickly, it will inevitably lead to severe property damage and even endanger lives.

[0003] Most existing fire extinguishing devices rely on manual operation and lack automatic detection and rapid response capabilities, making them ill-suited for handling sudden, localized fires. CN2024228441589U discloses a bent pipe, a conveying device using this bent pipe, and fire-fighting equipment. This device is suspended from a fixed top beam structure by a base, with downward-facing nozzles spraying extinguishing media from top to bottom. The nozzles can rotate horizontally or swing vertically at a certain angle. This equipment can quickly respond to and control fires within a certain range. However, due to its fixed installation, the spraying range is limited; the nozzles cannot move freely within a certain range to locate the fire, and the spray range cannot be flexibly adjusted. Therefore, there is an urgent need to design a highly efficient integrated fire extinguishing device that can automatically detect fire sources, move rapidly within a certain range, and carries its own extinguishing media to solve the above problems. Summary of the Invention

[0004] This utility model addresses the limitations of existing technologies, such as the limited spray area and inflexible adjustment that arise from either using handheld fire extinguishers or fixed fire-fighting equipment, making it difficult to cope with sudden localized fires. It provides a nozzle, a spray assembly using the nozzle, and fire-fighting equipment.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: In a first aspect, the present invention provides a nozzle, the nozzle comprising a nozzle body, the nozzle body comprising: at least one gas flow channel for conveying gas; at least one fire extinguishing medium flow channel for conveying medium; the gas flow channel and the fire extinguishing medium flow channel are arranged in the nozzle body such that the gas flows in the gas flow channel and the medium flows in the fire extinguishing medium flow channel in parallel.

[0006] Preferably, the gas flow channel and the fire extinguishing medium flow channel are coaxially sleeved within the nozzle body; More preferably, there is one gas flow channel and one fire extinguishing medium flow channel, and the gas flow channel surrounds the fire extinguishing medium flow channel; Alternatively, there may be two gas channels: a first gas channel and a second gas channel, and one fire extinguishing medium channel; the fire extinguishing medium channel may be located between the first gas channel and the second gas channel.

[0007] Preferably, the gas flow channel and the fire extinguishing medium flow channel are non-coaxially arranged within the nozzle body; there are at least two gas flow channels, the number of fire extinguishing medium flow channels is ≥1, and the gas flow channels and the fire extinguishing medium flow channels are arranged parallel to each other. More preferably, there are two gas channels and one fire extinguishing medium channel, and the two gas channels are symmetrically arranged within the fire extinguishing medium channel with the central axis of the fire extinguishing medium channel as the reference.

[0008] Preferably, the nozzle further includes: a support frame, which is disposed between the gas flow channel and the extinguishing medium flow channel to maintain a relative radial distance between the gas flow channel and the extinguishing medium flow channel, while ensuring the relative stability of the gas flow channel and the extinguishing medium flow channel; and / or, the side wall of the gas flow channel at the input end is provided with a plurality of through holes for connecting to an external gas source, the purpose of which is to ensure the uniformity of air intake and prevent uneven outlet pressure from causing the extinguishing medium to deflect and the pipe to deform and be damaged.

[0009] Secondly, this utility model provides a spraying assembly, which includes a spraying head and is connected to a conveying mechanism via a connecting pipe; The connecting pipe has an "L" shaped structure. The input end of the connecting pipe is connected to the output end of the conveying mechanism, and the output end of the connecting pipe is connected to the input end of the spray head. The spray head includes the spray head described in the first aspect.

[0010] Thirdly, this utility model provides a fire-fighting equipment, including the spraying assembly described in the second aspect; the spraying assembly is mounted on a box-type structure, and a medium storage tank is provided inside the box-type structure; the medium storage tank is connected to the spraying assembly via a pump.

[0011] Optionally, the conveying mechanism includes a guide member and a base connected to the output end of the guide member, the base being connected to the connecting pipe; The flow guide is connected to the first drive mechanism. The flow guide can rotate horizontally under the drive of the first drive mechanism, and at the same time drive the nozzle to rotate arbitrarily within a horizontal angle range of not less than 360° in the forward or reverse direction. The base is connected to the second drive mechanism and is used to drive the nozzle to swing up and down within the range of 0°-120°.

[0012] Furthermore, the flow guide includes a curved flow guide channel and a straight flow guide channel; the output end of the curved flow guide channel is connected to the input end of the connecting pipe through the base, and the input end of the curved flow guide channel is connected to the output end of the straight flow guide channel.

[0013] Furthermore, the input end of the straight flow channel is connected to the output end of the medium storage tank; a fixing plate is provided on the straight flow channel, and a first driving mechanism is installed on the fixing plate. The first driving mechanism drives the straight flow channel and the curved flow channel, thereby driving the nozzle to rotate in the horizontal direction. Specifically, a gear one is provided on the straight flow channel, and the gear one meshes with a gear two of the first driving mechanism.

[0014] Preferably, the fixing plate is further provided with a bidirectional limiting component, which is used to enable the guide to rotate arbitrarily in the forward or reverse direction within an angle range of not less than 360° under the drive of the first driving mechanism.

[0015] More preferably, the bidirectional limiting component includes a slider and a lever. The slider is slidably connected to the fixed plate, and the lever is located at the bottom of the gear. When the fixed plate rotates until the slider contacts the lever, the lever pushes the slider to continue sliding a certain distance to ensure that the rotation limit angle of the fixed plate in the forward or reverse direction is not less than 360°.

[0016] More preferably, the curved guide channel has a "U" shaped structure, and a guide plate is provided inside the curved guide channel, which divides the curved guide channel into an input end and an output end; the base is provided at the connection between the output end of the curved guide channel and the input end of the connecting pipe, and the base has an inlet, an outlet and a drive mechanism connection port. The inlet is connected to the output end of the curved guide channel, the outlet is connected to the input end of the connecting pipe, and the drive mechanism connection port is connected to a second drive mechanism. The base swings up and down under the drive of the second drive mechanism, thereby realizing the up and down swing of the nozzle within the range of 0°-120°.

[0017] Preferably, the fire-fighting equipment further includes a power module, which is externally connected to a fixed power source; or, the power module is a portable power source; more preferably, the bottom of the housing is equipped with a walking mechanism. It should be noted that the power module of the fire-fighting equipment must meet the national standard "Installation Engineering of Fire-fighting Electrical Equipment" (GB 50084-2018). When the power module is externally connected to a fixed power source, the movement range of the fire-fighting equipment will be limited by the length of the power cord due to the immobility of the fixed power source.

[0018] The walking mechanism includes, but is not limited to, wheeled walking mechanisms, tracked walking mechanisms, legged walking mechanisms, and hybrid walking mechanisms. Furthermore, existing high-end intelligent robot dogs may also be an option; as long as the spraying component of this invention can be fixedly installed on the back of the high-end intelligent robot dog, fire control within a certain area can be achieved.

[0019] Preferably, the fire-fighting equipment further includes a monitoring mechanism, which includes at least one of a temperature sensor, a smoke detector, a water level detector, and video surveillance. More preferably, the fire-fighting equipment further includes a control unit, and the monitoring mechanism, the pump, the first drive mechanism, and the second drive mechanism are respectively electrically connected to the control unit. In addition, the walking mechanism can also be configured to connect to the control unit as needed, thereby realizing automatic walking control.

[0020] Preferably, when the nozzle described in the first aspect is used, the fire-fighting equipment further includes a high-pressure air source, the output end of the medium storage tank is connected to a first control valve, and the output end of the high-pressure air source is connected to a second control valve; The first control valve and the second control valve are respectively connected to the control unit.

[0021] The beneficial effects of this utility model are as follows: This invention's nozzle, with its simple yet practical structural design, enables the extinguishing medium to reach the fire point more flexibly and concentratedly. Furthermore, by combining the nozzle with a conveying mechanism via an "L"-shaped connecting pipe, the resulting spray assembly can be flexibly applied to various scenarios, such as covering every corner of a production line and large areas of a warehouse. Alternatively, the spray assembly can be further integrated into a box-type structure capable of carrying the extinguishing medium, allowing it to be fixed in one location for fire control while also enabling movement within a certain area. This achieves rapid response and fire suppression, significantly reducing the possibility of fire damage to critical sites and providing reliable protection for safe production and cargo storage. Attached Figure Description

[0022] Figure 1This is a schematic diagram of the nozzle structure of the present invention, wherein (A) is a cross-sectional view of the nozzle and (B) is a perspective view of the nozzle.

[0023] Figure 2 This is another structural schematic diagram of the nozzle of this utility model, wherein (A) is a cross-sectional view of the nozzle and (B) is a perspective view of the nozzle.

[0024] Figure 3 The diagram shows a side view of the non-coaxial gas flow channel and fire extinguishing medium flow channel of this utility model, wherein (A) is a sectional view of the nozzle and (B) is a perspective view of the nozzle.

[0025] Figure 4 This is a schematic diagram of the support frame for the nozzle of this utility model, wherein (A) is a nozzle internal support frame arrangement in which the gas flow channel and the fire extinguishing medium flow channel are coaxially arranged; and (B) is a nozzle internal support frame arrangement in which the gas flow channel and the fire extinguishing medium flow channel are not coaxially arranged.

[0026] Figure 5 This is a three-dimensional structural schematic diagram of the spraying assembly of this utility model, wherein (A) is a planar schematic diagram of the overall structure of the spraying assembly; and (B) is a three-dimensional structural schematic diagram of the conveying mechanism.

[0027] Figure 6 This is a structural schematic diagram of a fire-fighting equipment according to the present invention.

[0028] Figure 7 This is another structural schematic diagram of the fire-fighting equipment of this utility model (with gas cylinder).

[0029] Figure 8 This is a schematic diagram of the structure in which the gas flow channel of the nozzle in the fire-fighting equipment of this utility model is connected to the gas source through a pipeline.

[0030] Reference numerals: 1. Nozzle, 2. Nozzle body, 3. Gas flow channel, 4. Extinguishing medium flow channel, 5. Support frame, 6. Through hole, 7. Spray assembly, 9. Connecting pipe, 10. Conveying mechanism, 11. Base, 12. Housing, 13. Medium storage tank, 14. Pump, 15. Power module, 16. Monitoring mechanism (the linkage controller is also integrated here), 17. Area controller, 18. Walking mechanism, 19. Gas source; Among them: 1001. Flow guide, 1002. Fixing plate, 1003. Curved flow guide channel, 1004. Straight flow guide channel. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0032] like Figure 1 As shown, this utility model provides a nozzle 1, which includes a nozzle body 2. The nozzle body 2 is provided with: a gas flow channel 3 for conveying gas; and a fire extinguishing medium flow channel 4 for conveying the medium. The gas flow channel 3 and the fire extinguishing medium flow channel 4 are arranged in the nozzle body 2 such that the gas flows in the gas flow channel 3 and the medium flows in the fire extinguishing medium flow channel 4 in parallel.

[0033] like Figure 2 As shown, this utility model also provides a nozzle 1 with another structure. The nozzle body 2 can be provided with two gas flow channels 3: a first gas flow channel and a second gas flow channel, and a fire extinguishing medium flow channel 4. The gas flow channels 3 surround the fire extinguishing medium flow channel 4, that is, the fire extinguishing medium flow channel is located between the first gas flow channel and the second gas flow channel.

[0034] In the two nozzle structures mentioned above, the gas flow channel 3 and the fire extinguishing medium flow channel 4 are coaxially sleeved inside the nozzle body 2.

[0035] like Figure 3 As shown, this embodiment provides a nozzle 1 with a third structure, wherein the gas flow channel 3 and the fire extinguishing medium flow channel 4 are arranged non-coaxially within the nozzle body 2; there are two gas flow channels 3 and one fire extinguishing medium flow channel 4, the gas flow channels 3 and the fire extinguishing medium flow channel 4 are arranged in parallel, and the two gas flow channels 3 are arranged symmetrically within the fire extinguishing medium flow channel 4 with the central axis of the fire extinguishing medium flow channel 4 as the reference.

[0036] Whether the gas flow channel and the extinguishing medium flow channel are coaxially or non-coaxially arranged, the purpose is to further apply a force to the extinguishing medium at the outlet through the ejected gas during the outward spraying of the extinguishing medium, thereby increasing the pressure and speed of the extinguishing medium spraying towards the ignition point.

[0037] In addition, to better ensure the installation stability of the gas flow channel and the extinguishing medium flow channel, and to prevent damage to the pipeline from the reaction force of the gas and extinguishing medium during spraying, please refer to [link / reference]. Figure 4 In one example, a support frame 5 can also be installed inside the nozzle 1. In the coaxial sleeve configuration, the support frame 5 is located between the gas flow channel 3 and the extinguishing medium flow channel 4, so that the gas flow channel 3 and the extinguishing medium flow channel 4 maintain a relative radial distance (Figure (A)). In the non-coaxial sleeve configuration, the support frame 5 is located both between the gas flow channel 3 and the extinguishing medium flow channel 4, and also between the two gas flow channels 2 (Figure (B)).

[0038] In some preferred embodiments, the gas flow channel 3 has several through holes 6 on the side wall of the input terminal, such as... Figure 8 As shown, the pipes coming out of the gas cylinder are divided into multiple sections that connect to these through holes. The purpose of this is to ensure uniform air intake in the nozzles, prevent the fire extinguishing medium sprayed from the outlet from being deflected, and also prevent damage to the pipes.

[0039] The nozzle of this utility model is mainly used in fire-fighting equipment. Therefore, the fire extinguishing medium input into the fire extinguishing medium channel can be a solid fluid, liquid fluid, or gaseous fluid, depending on the actual needs. They are not listed here. The aforementioned flow channels are arranged in such a way that the gas and the medium flow in parallel.

[0040] like Figure 5 As shown, this utility model also provides a spraying assembly 7, which includes a nozzle 1, and the nozzle 1 is connected to the conveying mechanism 10 through a connecting pipe 9. The connecting pipe 9 has an "L"-shaped structure. The input end of the connecting pipe 9 connects to the output end of the conveying mechanism 10, and the output end of the connecting pipe 9 connects to the input end of the nozzle. On the one hand, the connecting pipe 9 can effectively solve the problem of spray dead angles in existing conveying devices, such as the conveying device disclosed in CN2024228441589, when integrated into a box-type structure (the conveying device disclosed in CN2024228441589 has no dead angle problem when it is hoisted). On the other hand, the "L"-shaped structure of the connecting pipe 9 also has a certain buffering effect, which can offset some of the strong impact force generated by the spraying of the extinguishing medium and reduce damage to the pipeline.

[0041] The nozzle can be the one described above. Figures 1-3 Any of the nozzles in the spray can be used, or a commercially available ordinary spray nozzle can be used.

[0042] The delivery mechanism 10 is a mechanism that enables the extinguishing medium to be sprayed out through the connecting pipe 9. Figure 5 The conveying mechanism 10 given is only one example of this embodiment, and refers to the conveying device structure in CN2024228441589. The conveying mechanism of this utility model is not limited to this one.

[0043] The application of the conveying device in this utility model is explained as follows: Figure 5As shown, the conveying device includes: a guide member 1001, the output end of the guide member 1001 is connected to a base 11, and the base 11 is connected to a connecting pipe 9; the guide member 1001 is connected to a first driving mechanism (not shown in the figure) and rotates horizontally under the drive of the first driving mechanism, so that the nozzle 1 can rotate arbitrarily within a horizontal angle range of not less than 360° in the forward or reverse direction; the base 11 is connected to a second driving mechanism (not shown in the figure) and is used to drive the nozzle 1 to swing up and down within the range of 0°-120°.

[0044] Furthermore, the flow guide 1001 includes a curved flow guide channel 1003 and a straight flow guide channel 1004; the output end of the curved flow guide channel 1003 is connected to the input end of the connecting pipe 9, and the input end of the curved flow guide channel 1003 is connected to the output end of the straight flow guide channel 1004; the base 11 connects the flow guide 1001 to the connecting pipe 9, and a second driving mechanism is provided at the connection point to drive the connecting pipe 9 to make the nozzle 1 swing up and down, so that the nozzle 1 swings up and down within the range of 0°-120°. The input end of the straight flow guide channel 1004 is connected to the output end of the medium storage tank 13; a fixing plate 1002 is also provided on the straight flow guide channel 1004, and a first driving mechanism is provided on the fixing plate 1002, which drives the conveying mechanism 10 to make the nozzle 1 rotate in the horizontal direction. A bidirectional limiting component (not shown in the figure) is also provided on the fixing plate 1002, which is used to realize the fixing plate 1002 to rotate arbitrarily within an angle range of not less than 360° in either the forward or reverse direction. The structure of the bidirectional limit component is referenced in CN2024228441589, and will not be described in detail here.

[0045] The curved flow guide channel 1003 has a "U" shaped structure. The internal structure of the curved flow guide channel 1003 is not described in detail, but please refer to the curved pipe structure disclosed in patent CN2024228441589. The output end of the curved flow guide channel 1003 is connected to the input end of the connecting pipe 9 through the base 11.

[0046] like Figure 6 As shown in the diagram, this embodiment also provides a structural schematic diagram of fire-fighting equipment, which adopts the aforementioned... Figure 5 The spray assembly 7 shown uses a standard water nozzle. The spray assembly 7 is mounted on a box-type structure 12, which contains a media storage tank 13. The media storage tank 13 is connected to the spray assembly 7 via a pump 14 and is used to store the extinguishing medium. A walking mechanism can also be installed at the bottom of the fire-fighting equipment. Figure 6 The image shown is of the scroll wheel.

[0047] Extinguishing media include: foam, water-based, ultrafine dry powder (solid fluid), carbon dioxide, carbon tetrachloride, halon, etc.

[0048] Furthermore, the walking mechanism includes, but is not limited to: wheeled walking mechanisms, tracked walking mechanisms, legged walking mechanisms, hybrid walking mechanisms, and high-end intelligent robotic dogs. It is used to allow free movement within a certain range during fire equipment monitoring and firefighting operations. The walking mechanism can be configured for automatic or non-automatic control.

[0049] Furthermore, fire-fighting equipment also includes power modules, which are connected to an external fixed power source; alternatively, the power modules may be portable power sources. All power modules for fire-fighting equipment must meet the national standard "Installation Engineering of Fire-fighting Electrical Equipment" (GB 50084-2018). When fire-fighting equipment uses an external fixed power source, the mobility of the equipment is limited by the length of the power cord due to the immobility of the fixed power source.

[0050] In some preferred embodiments, the fire-fighting equipment further includes a monitoring mechanism 16 and a control unit, the control unit consisting of a linkage controller and a zone controller 17; wherein the drive mechanism, monitoring mechanism 16, and zone controller 17 are respectively connected to the linkage controller, and the monitoring mechanism 16 includes at least one of the following: temperature sensor, smoke detector, water level detector, and video monitoring. The linkage controller is used to realize the monitoring and spraying control functions of the fire-fighting equipment (if the walking mechanism is also electrically connected to the linkage controller, automatic control of the walking process can also be realized). In addition, the linkage controller and the monitoring mechanism can be integrated at the sprinkler head or set separately. The zone controller 17 is used to realize the functions of human-machine interaction, real-time transmission of fire-fighting equipment and on-site status data, and is installed in a box-type structure. Both the linkage controller and the zone controller are commercially available products, and their application in this utility model is not limited to a specific model.

[0051] In a preferred embodiment of this utility model, the fire-fighting equipment uses commercially available ordinary water nozzles. The nozzles are equipped with a temperature sensor, a smoke detector, and image / video monitoring. They utilize the delivery device disclosed in CN2024228441589, and are powered by an external fixed power supply. The box-type structure also has rolling wheels at the bottom (without automatic control function). The linkage controller and monitoring mechanism are integrated at the nozzle. The linkage controller is used to monitor and control the spraying of the fire-fighting equipment, while the area controller is used to enable human-machine interaction and real-time transmission of fire-fighting equipment and on-site status data. Furthermore, the water nozzle sprays at a pressure of 0.25 MPa, and the medium flow rate is 1.5 L / s. This fire-fighting equipment has been submitted to the National Fixed Fire Extinguishing System and Fire-Resistant Components Quality Inspection and Testing Center for type testing.

[0052] like Figure 7 As shown in the diagram, this embodiment also provides a structural schematic diagram of another type of fire-fighting equipment, which adopts the following... Figure 1The sprinkler head shown, in the structure of this fire-fighting equipment, requires an external air source 19 for its gas flow channel. Two through holes (e.g., on the side wall of the gas flow channel at the inlet end) are provided for connecting to the external air source 19. Figure 8 As shown), the external gas source 19 is a high-pressure gas source. After opening the valves on the gas source and pipeline, the gas enters the gas flow channel through the pipeline. The gas flow channel has two branch pipelines that are connected to two through holes 6 respectively to ensure the uniformity of the gas intake. Alternatively, the external gas source can also be an atmospheric pressure gas source, which is then connected to the gas flow channel through a high-pressure gas pump and pipeline.

[0053] Furthermore, a first control valve is provided on the pipeline connecting the output end of pump 14 to the conveying device, and a second control valve is provided on the pipeline connecting the output end of high-pressure gas source 19 to the gas flow channel 3; the first control valve and the second control valve are also connected to a linkage controller to realize automatic control of the injection process.

[0054] This utility model's atomizing nozzle, with its simple yet practical structural design, enables the extinguishing medium to reach the fire point more flexibly and concentratedly, achieving highly efficient fire suppression. Utilizing automatic detection, mobile operation, and atomizing extinguishing technology, this equipment can quickly cover every corner of the production line and large areas of the warehouse, effectively suppressing the fire in its early stages and significantly reducing losses to these critical locations. It provides reliable protection for safe production and cargo storage, significantly improving fire suppression efficiency and application scope. Its top can be equipped with a high-precision detection mechanism, capable of keenly detecting even the smallest flames in hidden corners of places like electric vehicle sheds and new energy charging stations, greatly increasing the probability of early fire detection. The highly flexible walking mechanism at the bottom can be fixed or moved, and carries its own extinguishing medium, completely avoiding the complexity of traditional pipeline laying and significantly saving the time required to connect water pipes, achieving rapid fire suppression. Whether in the narrow areas of a production line or the vast spaces of a warehouse, it can achieve comprehensive and efficient fire suppression, reducing losses.

[0055] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A showerhead, characterized by, The nozzle includes a nozzle body, and the nozzle body includes: At least one gas flow channel for conveying gas; At least one fire extinguishing medium flow channel, the fire extinguishing medium flow channel being used to transport the medium; The gas flow channel and the fire extinguishing medium flow channel are arranged in the nozzle body such that the gas flows in the gas flow channel and the medium flows in the fire extinguishing medium flow channel in parallel.

2. The showerhead of claim 1, wherein The gas flow channel and the fire extinguishing medium flow channel are coaxially sleeved within the nozzle body.

3. The showerhead of claim 2, wherein, There is one gas flow channel and one fire extinguishing medium flow channel, and the gas flow channel surrounds the fire extinguishing medium flow channel. Alternatively, there may be two gas channels: a first gas channel and a second gas channel, and one fire extinguishing medium channel; the fire extinguishing medium channel may be located between the first gas channel and the second gas channel.

4. The showerhead of claim 1, wherein The gas flow channel and the fire extinguishing medium flow channel are non-coaxially arranged within the nozzle body; there are at least two gas flow channels, and the number of fire extinguishing medium flow channels is ≥1, with the gas flow channels and the fire extinguishing medium flow channels arranged parallel to each other.

5. The showerhead of claim 4, wherein, There are two gas channels and one fire extinguishing medium channel. The two gas channels are arranged symmetrically within the fire extinguishing medium channel with the central axis of the fire extinguishing medium channel as the reference.

6. The showerhead of any of claims 2-5, wherein, The nozzle also includes: A support frame is disposed between the gas flow channel and the extinguishing medium flow channel; and / or, The gas flow channel has several through holes on the side wall at the input end for connecting to an external gas source.

7. A spray assembly characterized by, The spraying assembly includes a spray head, which is connected to a conveying mechanism via a connecting pipe; The connecting pipe has an "L" shaped structure. The input end of the connecting pipe is connected to the output end of the conveying mechanism, and the output end of the connecting pipe is connected to the input end of the spray head. The spray head includes the spray head according to any one of claims 1 to 6.

8. Fire fighting equipment, characterized in that Includes the jetting assembly as described in claim 7; The spraying assembly is mounted on a box-type structure, and the box-type structure contains a medium storage tank; the medium storage tank is connected to the spraying assembly via a pump.

9. Fire fighting equipment according to claim 8, characterized in that The delivery mechanism of the jet assembly includes a guide member and a base connected to the output end of the guide member, and the base is connected to the connecting pipe; The flow guide is connected to the first drive mechanism. The flow guide can rotate horizontally under the drive of the first drive mechanism, and at the same time drive the nozzle to rotate arbitrarily within a horizontal angle range of not less than 360° in the forward or reverse direction. The base is connected to the second drive mechanism and is used to drive the nozzle to swing up and down within the range of 0°-120°.

10. Fire fighting equipment according to claim 9, characterized in that The fire-fighting equipment also includes: A power module, wherein the power module is connected to an external fixed power source; or, the power module is a portable power source.

11. Fire fighting equipment according to claim 10, characterized in that The box-type structure is equipped with a walking mechanism at its bottom.

12. The fire-fighting apparatus of claim 10, wherein, The fire-fighting equipment also includes a monitoring mechanism, which includes at least one of the following: a temperature sensor, a smoke detector, a water level detector, and video surveillance.

13. The fire-fighting apparatus of claim 12, wherein, The fire-fighting equipment also includes a control unit, and the monitoring mechanism, the pump, the first drive mechanism, and the second drive mechanism are electrically connected to the control unit.

14. The fire-fighting equipment according to claim 12 or 13, characterized in that, When the nozzle according to any one of claims 1 to 4 is used, the fire-fighting equipment further includes a high-pressure air source, the output end of the medium storage tank is connected to a first control valve, and the output end of the high-pressure air source is connected to a second control valve; The first control valve and the second control valve are respectively connected to the control unit.

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