Fire-fighting boom device and fire-fighting truck

Abstract

The utility model relates to the technical field of fire fighting, and provides a fire fighting boom device and a fire fighting truck, the fire fighting boom device comprises a supporting assembly, a boom assembly and a driving assembly, and the boom assembly comprises a boom pipe body and a conveying pipeline; a connecting pipe is arranged at one end of the arm support pipe body, and the connecting pipe is rotatably arranged on the supporting assembly; and the other end of the boom pipe body is connected with a fire monitor. One end of the conveying pipeline is detachably connected with the connecting pipe, the other end of the conveying pipeline is suitable for being connected with a fire fighting pipeline for conveying a fire extinguishing medium, a first flow guide part is arranged in the conveying pipeline, and / or a second flow guide part is arranged in the boom pipe body; one end of the driving assembly is rotationally connected with the supporting assembly, and the other end of the driving assembly is rotationally connected with the boom pipe body and used for driving the boom pipe body to conduct pitching motion. According to the utility model, stable transmission of fire extinguishing media can be ensured, the turbulence phenomenon is avoided, and the pressure loss in the pipeline is reduced.

Description

Technical Field

[0001] This utility model relates to the field of fire protection technology, and in particular to a fire boom device and a fire truck. Background Technology

[0002] When fire trucks respond to fires, the boom system plays a crucial role. The extinguishing medium (such as water, foam, etc.) is fluidly transferred through the delivery channel in the boom system. It is necessary to ensure that the extinguishing medium flows stably in the delivery channel to ensure the reliability of the fire extinguishing operation.

[0003] When the flow velocity in the delivery channel increases or the pipe diameter increases, the complex movement of fluid molecules easily generates turbulence. The formation of turbulence increases the internal resistance of the pipe, affects the transmission speed of the extinguishing medium, and makes it difficult to meet the extinguishing requirements. Utility Model Content

[0004] This utility model provides a fire boom device and a fire truck to solve the above-mentioned technical defects in the prior art. It can guide the fluid to flow in a specific direction, ensure the stable transmission of the fire extinguishing medium, avoid the generation of turbulence, and reduce the pressure loss inside the pipeline.

[0005] The first aspect of this utility model provides a fire boom device, comprising:

[0006] Support components;

[0007] boom assembly, including:

[0008] The boom tube has a connecting pipe at one end, which is rotatably mounted on the support assembly, and a fire monitor at the other end.

[0009] The delivery pipeline has one end detachably connected to the connecting pipe and the other end adapted to connect to a fire-fighting pipeline for conveying fire extinguishing media.

[0010] The conveying pipe is provided with a first flow guide, and / or the boom tube is provided with a second flow guide;

[0011] The drive assembly has one end rotatably connected to the support assembly and the other end rotatably connected to the boom tube. The drive assembly is used to drive the boom tube to perform pitching motion.

[0012] According to the fire boom device provided by this utility model, the conveying pipeline includes:

[0013] The first connecting section is detachably connected to the connecting pipe;

[0014] A bend in the pipe, one end of which is connected to the first connecting section;

[0015] The second connecting section is connected to the other end of the bend section, and the second connecting section is adapted to connect to the fire-fighting pipeline that transports the fire extinguishing medium;

[0016] The first flow guide is disposed inside the bend section, and the shape of the first flow guide is adapted to the shape of the bend section to divide the interior of the bend section into two sub-channels.

[0017] According to the fire boom device provided by this utility model, the boom tube body includes:

[0018] Delivery pipeline section;

[0019] A connecting pipe section is connected to one end of the conveying pipe section;

[0020] The fire monitor is connected to the other end of the delivery pipe section, and the connecting pipe is intersecting with the connecting pipe section; the second guide member is located inside the connecting pipe section.

[0021] According to the fire boom device provided by this utility model, there are two connecting pipes, and the two connecting pipes are symmetrically arranged on both sides of the connecting pipe section;

[0022] The connecting pipe section is further provided with a third flow guide, which is located between the openings of the two symmetrically arranged connecting pipes and is perpendicular to the second flow guide.

[0023] According to the fire boom device provided by this utility model, the third guide member includes:

[0024] Two first guide sections are set in a mirror configuration. One end of each first guide section is located on one side of the corresponding connecting pipe opening, and the other end of each first guide section extends along an arc to the other side of the corresponding connecting pipe opening.

[0025] The second guide section has one end connected to each of the first guide sections and the other end extending along the axis of the conveying pipe section.

[0026] According to the fire boom device provided by this utility model, the support assembly includes:

[0027] A support platform, suitable for installation on a fire truck, is provided with a boom axle seat and a drive axle seat, which are arranged sequentially at intervals.

[0028] The connecting pipe is rotatably connected to the boom shaft seat, and the drive assembly is rotatably connected to the drive shaft seat.

[0029] According to the fire boom device provided by this utility model, the drive assembly includes:

[0030] A variable-amplitude hydraulic cylinder, the fixed end of which is rotatably connected to the support assembly;

[0031] The connecting component is sleeved on the boom tube and rotatably connected to the drive end of the luffing cylinder.

[0032] According to the fire boom device provided by this utility model, the connecting assembly includes:

[0033] A luffing shaft seat is sleeved on the boom tube body, and the luffing shaft seat is provided with a threaded hole;

[0034] The pin has one end connected to the threaded hole and the other end rotatably connected to the drive end of the luffing cylinder via a bearing.

[0035] According to the fire boom device provided by this utility model, the luffing shaft seat is provided with a first connecting hole, and the first connecting hole communicates with the threaded hole;

[0036] The pin is provided with a second connecting hole, which is located at the position where the pin mates with the threaded hole;

[0037] The connection assembly further includes a connector, which is inserted into the first connection hole and the second connection hole.

[0038] The second aspect of this utility model provides a fire truck, including a fire truck body and a fire boom device as described in any one of the claims, wherein the fire boom device is disposed on the fire truck body.

[0039] The fire boom device provided by this utility model has a first flow guide inside the delivery pipeline. When fluid enters the delivery pipeline, the first flow guide divides the originally uniformly migrating fluid into two independent sub-channels, disrupting the velocity component perpendicular to the axis of the delivery pipeline, keeping the fluid in a stable laminar flow state, avoiding turbulence, and reducing pressure loss inside the pipeline.

[0040] The first and second flow guides work together. The first flow guide initially adjusts the direction of the incoming fluid, while the second flow guide further optimizes the flow direction within the delivery pipe section. This synergistic effect improves the stability and reliability of the entire fluid delivery system, especially under different operating conditions (such as different extinguishing medium flow velocities, different boom diameters, or different boom pitch angles), ensuring stable delivery of the extinguishing medium, avoiding turbulence, and reducing pressure loss within the pipeline.

[0041] The fire truck provided by this utility model has all the above advantages because it includes the aforementioned fire boom device. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0043] Figure 1 This is a structural schematic diagram of the fire boom device provided in this embodiment of the utility model.

[0044] Figure 2 This is a top view of the fire boom device provided in this embodiment of the utility model.

[0045] Figure 3 This is one of the cross-sectional views of the fire boom device provided in the embodiment of this utility model.

[0046] Figure 4 yes Figure 3 Enlarged view of part A in the middle.

[0047] Figure 5 This is a second sectional view of the fire boom device provided in this embodiment of the utility model.

[0048] Figure 6 This is a partial structural schematic diagram of the fire boom device provided in this embodiment of the utility model.

[0049] Figure 7 This is the third sectional view of the fire boom device provided in this embodiment of the utility model.

[0050] Figure 8 This is a structural schematic diagram of the fire truck provided in this embodiment of the utility model.

[0051] Figure label:

[0052] 10. Support assembly; 11. Support platform; 12. Boom axle seat; 13. Drive shaft seat;

[0053] 20. Boom assembly; 21. Boom tube body; 211. Conveying channel; 212. Conveying pipe section; 213. Connecting pipe section; 22. Conveying pipeline; 221. First connecting section; 222. Bend section; 223. Second connecting section; 23. Connecting pipe; 24. Fire monitor;

[0054] 30. Drive assembly; 31. Luffing cylinder; 32. Luffing shaft seat; 321. Threaded hole; 322. First connecting hole; 33. Pin; 331. Second connecting hole;

[0055] 40. First guide vane; 50. Second guide vane; 60. Third guide vane; 61. First guide section; 62. Second guide section; 70. Fire truck body. Detailed Implementation

[0056] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0057] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0058] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0059] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0060] Figure 1 This is a structural schematic diagram of the fire boom device provided in this embodiment of the utility model. Figure 2 This is a top view of the fire boom device provided in this embodiment of the utility model. Figure 3 This is one of the cross-sectional views of the fire boom device provided in the embodiment of this utility model. Figure 4 yes Figure 3 Enlarged view of part A in the middle.

[0061] See Figures 1 to 4 This utility model provides a fire boom device, which includes a support assembly 10, a boom assembly 20 and a drive assembly 30.

[0062] The support component 10 can be made of high-strength metal structure, such as an alloy steel base with multiple fixing holes, and the entire fire boom device can be fixed to the fire truck or other mobile platform by bolts and other connectors.

[0063] The boom assembly 20 includes a boom tube 21 and a delivery pipe 22. The boom tube 21 has an internal delivery channel 211, which can be designed with a circular cross-section to reduce fluid resistance during delivery. One end of the boom tube 21 is provided with a connecting pipe 23, which is rotatably mounted on the support assembly 10 and communicates with the delivery channel 211. The other end of the boom tube 21 is connected to a fire monitor 24.

[0064] One end of the delivery pipe 22 is detachably connected to the connecting pipe 23, and the other end of the delivery pipe 22 is adapted to connect to a fire-fighting pipeline for delivering extinguishing media, which in turn connects to a storage device containing the extinguishing media. The delivery pipe 22 adopts a bent pipe structure, and its bending angle is designed according to actual needs, such as common angles like 90 degrees or 135 degrees.

[0065] See Figure 3 and Figure 4 The conveying pipe 22 is provided with a first guide member 40, which is located inside the conveying pipe 22 and can be made of thin metal sheet. The first guide member 40 is arc-shaped, and its curvature is optimized according to the bending angle and internal space of the conveying pipe 22.

[0066] When the extinguishing medium flows in the delivery pipe 22, the first guide element 40 can guide the fluid to flow in a specific direction, reducing fluid turbulence and energy loss caused by bends in the pipe.

[0067] Inside the boom tube 21, i.e., the delivery channel 211, a second flow guide 50 is provided. The second flow guide 50 can further adjust the flow direction of the fluid, ensuring that the fluid maintains a relatively stable flow state within the delivery channel 211, avoiding turbulence and reducing pressure loss inside the pipe. Turbulence can be understood as follows: when the flow velocity increases significantly, streamlines are no longer clearly distinguishable, many small vortices appear in the flow field, laminar flow is disrupted, and there is not only sliding but also mixing between adjacent flow layers.

[0068] In some embodiments, a first guide member 40 can be provided inside the delivery pipe 22, and a second guide member 50 can be provided inside the boom pipe 21, i.e. the delivery channel 211, which plays a comprehensive guiding role in the flow of the extinguishing medium.

[0069] When the extinguishing medium enters the boom tube 21 from the storage device through the delivery pipe 22, the first guide member 40 initially guides the incoming fluid, giving it a certain directionality as it enters the delivery channel 211. Then, the second guide member 50 within the delivery channel 211 further guides the fluid to adjust its flow direction, ensuring a relatively stable flow state within the delivery channel 211, avoiding turbulence, and reducing pressure loss inside the pipe.

[0070] One end of the drive assembly 30 is rotatably connected to the support assembly 10, and the other end of the drive assembly 30 is rotatably connected to the boom tube 21. The drive assembly 30 is used to drive the boom tube 21 to perform pitching motion.

[0071] The drive assembly 30 may employ a hydraulic drive system or a cylinder, etc. When the drive assembly 30 includes a hydraulic drive system, the hydraulic drive system includes components such as a hydraulic cylinder (hereinafter referred to as the luffing cylinder 31), a hydraulic pump, and hydraulic lines. One end of the hydraulic cylinder is rotatably connected to the support assembly 10 via a connecting joint, and the other end is rotatably connected to the boom tube 21.

[0072] When it is necessary to drive the boom tube 21 to perform pitching motion, the hydraulic pump delivers pressurized hydraulic oil to different chambers of the hydraulic cylinder according to the control signal, pushing the piston to extend or retract, thereby driving the boom tube 21 to rotate around the connection point with the support assembly 10 to achieve pitching motion.

[0073] It is understood that the fire boom device provided in this embodiment of the present invention has a first guide member 40 inside the conveying pipe 22. When fluid enters the conveying pipe 22, the first guide member 40 divides the originally moving fluid into two independent sub-channels, disrupts the velocity component perpendicular to the axis of the conveying pipe, keeps the fluid in a stable laminar flow state, avoids turbulence, and reduces pressure loss inside the pipe.

[0074] The first guide element 40 and the second guide element 50 work together. The first guide element 40 initially adjusts the direction of the incoming fluid, while the second guide element 50 further optimizes the flow direction of the fluid in the delivery pipe section 212. This synergistic effect can improve the stability and reliability of the entire fluid transmission system, especially under different operating conditions (such as different extinguishing medium flow velocities, different boom diameters, or different boom pitch angles), ensuring stable transmission of the extinguishing medium, avoiding turbulence, and reducing pressure loss inside the pipeline.

[0075] Figure 5 This is a second sectional view of the fire boom device provided in this embodiment of the utility model.

[0076] See Figure 5 In some embodiments of this utility model, the conveying pipeline 22 includes a first connecting section 221, a bend section 222, and a second connecting section 223. The first connecting section 221 is detachably connected to the connecting pipe 23 via a flange. One end of the bend section 222 is connected to the first connecting section 221, and the other end of the bend section 222 is connected to the second connecting section 223. The second connecting section 223 is suitable for connecting to a fire-fighting pipeline for conveying fire extinguishing media.

[0077] The first flow guide 40 is disposed inside the bend section 222, and the shape of the first flow guide 40 is adapted to the shape of the bend section 222 to divide the interior of the bend section 222 into two independent sub-channels.

[0078] Essentially, quick-connect interfaces are provided at both ends of the conveying pipe 22. One end of the conveying pipe 22 is detachably connected to the connecting pipe 23 via a flange. The other end of the conveying pipe 22 is connected to the connection interface of the storage device via a quick-connect interface. The quick-connect interface can be customized according to the type of storage device. For example, a flange connection can be used for large water storage tanks, with a rubber sealing gasket in the middle.

[0079] It is understood that by providing a first flow guide 40 inside the bend section 222, this embodiment of the invention not only guides the flow of fluid to avoid turbulence and reduce pressure loss inside the pipe, but also enhances the structural strength of the bend section 222, preventing pipe deformation during high-pressure fluid transport.

[0080] Continue reading Figure 2 In some embodiments of this utility model, the boom tube 21 includes a conveying pipe section 212 and a connecting pipe section 213, with the connecting pipe section 213 sealed at the end of the conveying pipe section 212 away from the fire monitor 24.

[0081] It can be understood that in the above embodiments, the boom tube 21 can be an integral structure. In this embodiment, for ease of processing, the boom tube 21 is composed of a delivery pipe section 212 and a connecting pipe section 213, which are welded together.

[0082] Fire monitor 24 is connected to one end of delivery pipe section 212, connecting pipe 23 is installed through connecting pipe section 213, and second flow guide 50 is installed inside connecting pipe section 213. It can guide the fire extinguishing medium flowing from delivery pipe 22 into connecting pipe section 213.

[0083] When the extinguishing medium enters the connecting pipe section 213 from the delivery pipe 22, the flow of the fluid is prone to become turbulent due to the connection and turning of the pipe. The second flow guide 50 can adjust the flow direction of the fluid here, reduce mutual interference and energy loss between fluids, so that the extinguishing medium can flow more quickly and smoothly in the delivery channel 211, avoid the generation of turbulence, reduce the pressure loss inside the pipe, and improve the fluid delivery efficiency.

[0084] Figure 6 This is a partial structural schematic diagram of the fire boom device provided in this embodiment of the utility model.

[0085] Continue reading Figures 1 to 5 And see also Figure 6 In some embodiments of this utility model, two connecting pipes 23 are provided, and the two connecting pipes 23 are symmetrically arranged on both sides of the boom tube 21; this makes the boom tube 21 more stable in terms of connection and support. The symmetrically arranged connecting pipes 23 are rotatably connected to the support assembly 10, which can better withstand forces from different directions, improve the load-bearing capacity of the boom tube 21, and reduce deformation or damage caused by uneven force.

[0086] Meanwhile, the installation of two connecting pipes 23 allows for connection to the conveying pipe 22 from different directions or positions. The two symmetrical connecting pipes 23 provide more connection options, facilitating flexible pipe layout according to actual needs and improving the system's adaptability and scalability. When one connecting pipe 23 or its related components malfunction or require maintenance, the other connecting pipe 23 can continue system operation, minimizing the impact on the entire system and facilitating maintenance and repair.

[0087] Continue reading Figures 3 to 5 The connecting pipe section 213 is also provided with a third flow guide 60. The third flow guide 60 is located between the openings of the two symmetrically arranged connecting pipes 23, and the third flow guide 60 is perpendicular to the second flow guide 50.

[0088] This configuration allows for more precise guidance of the fluid entering the conveying channel 211 from the connecting pipe 23. It can change the flow direction of the fluid, prevent the fluid entering from the conveying pipes 22 on both sides of the connecting pipe section 213 from colliding and causing significant energy loss, further reduce the generation of turbulence and eddies, and improve the fluid conveying efficiency.

[0089] Continue reading Figure 4 In some embodiments of this utility model, the third guide member 60 includes two mirror-arranged first guide sections 61 and second guide sections 62.

[0090] In this configuration, one end of each first guide section 61 is located on one side of the opening of the corresponding connecting pipe 23, and the other end of each first guide section 61 extends along an arc to the other side of the opening of the corresponding connecting pipe 23.

[0091] This design allows for comprehensive guidance of the fluid entering from the inlet of the connecting pipe 23. When the fluid enters the delivery channel 211 from the connecting pipe 23, irregular flow can easily form due to the pressure difference and fluid velocity differences in the space around the inlet. The arc shape of the first guide section 61 can effectively capture and guide these potentially turbulent fluids, causing them to gradually change direction along the shape of the guide section and flow in a more orderly manner, thereby reducing turbulence caused by sudden diffusion or contraction of the fluid near the inlet.

[0092] Since the connection between the connecting pipe 23 and the conveying channel 211 is a region where the fluid flow state is prone to abrupt changes, the first guide section 61 transforms this abrupt change into a smoother transition through its shape, reducing energy loss and improving the initial flow efficiency of the fluid after entering the conveying channel 211. Furthermore, because the two connecting pipes 23 are symmetrically arranged, the mirror-image arrangement of the two first guide sections 61 can balance the fluid flow entering from the connecting pipes 23 on both sides, ensuring that the fluid on both sides flows in a similar and relatively regular manner after entering the conveying channel 211, which helps to form a stable and uniform overall flow field within the conveying channel 211.

[0093] The second guide section 62 is connected at one end to each of the first guide sections 61, and extends along the axis of the boom tube 21 at the other end. Essentially, the second guide section 62 integrates the fluid flow guided from the two first guide sections 61. After the initial guidance of the first guide sections 61, the fluid flow direction is somewhat regulated, but some dispersion may still exist. The second guide section 62, extending along the axis of the boom tube 21, further guides the fluid converging from the two first guide sections 61, ensuring stable flow along the axial direction of the boom tube 21.

[0094] This design helps reduce the lateral flow component of the fluid within the delivery channel 211, improving the stability of the fluid velocity and flow rate in the axial direction. This is crucial for applications requiring efficient and accurate delivery of the extinguishing medium to the fire monitor 24, ensuring that the extinguishing medium reaches the target location in optimal flow condition.

[0095] In this embodiment of the invention, the cooperation between the second guide section 62 and the first guide section 61 achieves a synergistic guide effect. The segmented guide design enables more precise control of the fluid flow state within the conveying channel 211, improving the effectiveness and reliability of the entire guide system and thus enhancing the operational capability of the boom system.

[0096] Continue reading Figure 6 In some embodiments of this utility model, the support assembly 10 includes a support platform 11, which is adapted to be installed on a fire truck. The support platform 11 is provided with a boom axle seat 12 and a drive axle seat 13, which are arranged sequentially at intervals and are arranged opposite to each other. A connecting pipe 23 is rotatably connected to the boom axle seat 12, and a drive assembly 30 is rotatably connected to the drive axle seat 13.

[0097] Figure 7 This is the third sectional view of the fire boom device provided in this embodiment of the utility model.

[0098] Continue reading Figure 2 and Figure 3 And see also Figure 7 The drive assembly 30 includes a luffing cylinder 31 and a connecting assembly. The fixed end of the luffing cylinder 31 is rotatably connected to the support assembly 10. The connecting assembly is sleeved on the boom tube 21 and is rotatably connected to the drive end of the luffing cylinder 31.

[0099] Furthermore, the connecting assembly includes a luffing shaft seat 32 and a pin 33. The luffing shaft seat 32 is sleeved on the boom tube 21 and has a threaded hole 321. One end of the pin 33 is connected to the threaded hole 321, and the other end is rotatably connected to the drive end of the luffing cylinder 31 through a bearing.

[0100] The variable amplitude shaft seat 32 is provided with a first connecting hole 322, which communicates with the threaded hole 321; the pin 33 is provided with a second connecting hole 331 at the position that mates with the threaded hole 321; the connecting assembly also includes a connector, such as a screw, which is inserted into the first connecting hole 322 and the second connecting hole 331 to limit the axial and radial displacement of the pin 33, thereby improving the stability of the connecting assembly.

[0101] Figure 8 This is a structural schematic diagram of the fire truck provided in this embodiment of the utility model.

[0102] See Figure 8 This utility model also provides a fire truck, which includes a fire truck body 70 and any one of the fire boom devices, the fire boom device being mounted on the fire truck body. The fire truck body 70 is equipped with a storage device for extinguishing media and fire extinguishing equipment, etc.

[0103] It is understood that the fire truck provided in this embodiment, because it includes the fire boom device of any of the aforementioned embodiments, also has the beneficial effects of the fire boom device of any of the aforementioned embodiments. For a detailed description of the effects, please refer to the preceding text.

[0104] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A fire fighting boom arrangement, characterized in that The utility model relates to a kind of fire-fighting equipment, including: Supporting assembly; Arm support assembly, including: Arm support pipe, one end is provided with adapter pipe, the adapter pipe is rotatably arranged in the supporting assembly, the other end is connected with fire monitor; Delivery pipeline, one end is detachably connected with the adapter pipe, the other end is suitable for connecting fire pipe line for conveying fire extinguishing medium; Wherein, the inside of the delivery pipeline is equipped with first flow guide, and / or, the inside of the arm support pipe is equipped with second flow guide; Drive assembly, one end is rotatably connected with the supporting assembly, the other end is rotatably connected with the arm support pipe, and the drive assembly is used to drive the arm support pipe to perform pitching motion.

2. The fire apparatus boom arrangement of claim 1, wherein, The delivery pipeline includes: First connecting section, detachably connected with the adapter pipe; Elbow section, one end is connected with the first connecting section; Second connecting section, connected with the other end of the elbow section, the second connecting section is suitable for connecting fire pipe line for conveying fire extinguishing medium; Wherein, the first flow guide is arranged in the inside of the elbow section, and the shape of the first flow guide is adapted to the shape of the elbow section, so as to separate the inside of the elbow section into two sub-flow channels.

3. The fire apparatus boom assembly of claim 1, wherein, The arm support pipe includes: Delivery pipe section; Connecting pipe section, connected to one end of the delivery pipe section; Wherein, the fire monitor is connected to the other end of the delivery pipe section, and the adapter pipe is arranged through the connecting pipe section;The second flow guide is arranged in the inside of the connecting pipe section.

4. The fire apparatus arm bracket assembly of claim 3, wherein, The adapter pipe is provided with two, two adapter pipes are symmetrically arranged on both sides of the connecting pipe section; The inside of the connecting pipe section is also equipped with third flow guide, and the third flow guide is located between the pipe openings of the two symmetrically arranged adapter pipes, and the third flow guide is perpendicular to the second flow guide.

5. The fire apparatus boom assembly of claim 4, wherein, The third flow guide includes: Mirror image arranged two first flow sections, one end of each first flow section is arranged on one side of the pipe opening of the corresponding adapter pipe, and the other end of each first flow section extends to the other side of the pipe opening of the corresponding adapter pipe along an arc; Second flow section, one end is connected with each first flow section, and the other end extends along the axis of the delivery pipe section.

6. A fire fighting boom arrangement according to any one of claims 1 to 5, characterized in that The supporting assembly includes: Supporting table, suitable for mounting to fire truck, arm support shaft seat and drive shaft seat are arranged on the supporting table, and the arm support shaft seat and the drive shaft seat are sequentially and spacedly arranged; Wherein, the adapter pipe is rotatably connected to the arm support shaft seat, and the drive assembly is rotatably connected to the drive shaft seat.

7. A fire fighting boom arrangement according to any one of claims 1 to 5, characterized in that The drive assembly includes: Luffing oil cylinder, fixed end rotatably connected with the supporting assembly; Connecting assembly, sleeved on the arm support pipe, and rotatably connected with the driving end of the luffing oil cylinder.

8. The fire fighting boom device of claim 7, wherein, The connecting assembly includes: Luffing shaft seat, sleeved on the arm support pipe, and screw hole is arranged on the luffing shaft seat; Pin shaft, one end is connected to the screw hole, and the other end is rotatably connected with the driving end of the luffing oil cylinder through bearing.

9. The fire fighting boom device of claim 8, wherein, The luffing shaft seat is provided with first connecting hole, and the first connecting hole is communicated with the screw hole; Second connecting hole is arranged on the pin shaft, and the second connecting hole is located at the position matched with the screw hole of the pin shaft. The connecting assembly further comprises a connecting piece, which is inserted into the first connecting hole and the second connecting hole.

10. A fire apparatus characterized by, The fire truck comprises a fire truck body and the fire arm support device according to any one of claims 1 to 9, and the fire arm support device is arranged on the fire truck body.

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