Telescopic fire water monitor for fire fighting truck

Abstract

The invention belongs to the technical field of fire fighting equipment, and particularly relates to a telescopic fire water monitor for a fire fighting truck. Comprising a telescopic sleeve, a lifting mechanism used for driving the telescopic sleeve to ascend and descend, a bent pipe connected with the telescopic sleeve and a spraying assembly connected to the bent pipe. The injection assembly comprises a pressurizing pipe, a straight pipe fixedly connected with the pressurizing pipe, an injection pipe for injecting water flow, and a water outlet regulation and control assembly mounted at the tail end of the injection pipe; a rectifying assembly is mounted between the injection pipe and the straight pipe; the rectifying assembly comprises an external connecting pipe, a rectifying pipe arranged in the external connecting pipe and capable of moving, and a first hydraulic cylinder used for driving the rectifying pipe to move, and a plurality of arc-shaped rectifying pieces are evenly and fixedly connected to the inner wall of the rectifying pipe in the circumferential direction of the rectifying pipe; through the design of the movable rectifying tube and the circumferentially-distributed rectifying pieces, a rectifying channel can be actively adjusted according to actual working conditions, water flow can be effectively guided and rectified, turbulence, vortex and pressure loss are reduced, and the range and the fire extinguishing efficiency are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of fire-fighting equipment technology, and in particular to a telescopic fire monitor for fire trucks. Background Technology

[0002] Fire monitors are the core operating device of fire trucks, and their performance directly affects the fire extinguishing range, coverage area, and water flow stability. In special fire scenarios such as high-rise buildings and petrochemical plants, it is often necessary to extend the monitor to higher or farther locations for fire extinguishing operations; therefore, telescopic structures are widely used. However, existing telescopic fire monitors still have the following problems in practical use.

[0003] First, water flow is prone to turbulence, vortices, and pressure loss when passing through expansion joints, elbows, and reducing pipe diameters, resulting in insufficient water concentration and limited range. This is especially problematic under high pressure and high flow conditions, where the water jet tends to disperse, affecting fire extinguishing efficiency. Second, traditional water cannons have limited flow channel adjustment capabilities, typically relying on simple opening, closing, or replacement of the end nozzle. They cannot actively guide and rectify the water flow within the cannon body, making it difficult to adapt to the stabilization requirements of different range modes (such as direct current and spray patterns). Furthermore, the rectification structure of existing water cannons is mostly fixed, unable to be adjusted in real time according to operating conditions, leading to inconsistent rectification effects under different working pressures and affecting operational flexibility and adaptability. Therefore, designing a telescopic fire cannon that is actively adjustable, effectively rectifys flow, and can adapt to high pressure and high flow conditions has become a technical problem that needs to be solved in this field. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a telescopic fire monitor for fire trucks, aiming to solve the problems in the background technology.

[0005] To achieve the above-mentioned technical objectives, the specific technical solution of the present invention is as follows: The present invention proposes a telescopic fire monitor for fire trucks, comprising a telescopic sleeve, a lifting mechanism for driving the telescopic sleeve to rise and fall, a bent pipe connected to the telescopic sleeve, and a spray assembly connected to the bent pipe; the spray assembly comprises a pressurizing pipe, a straight pipe fixedly connected to the pressurizing pipe, a spray pipe for spraying water flow, and a water outlet control assembly installed at the end of the spray pipe; a flow rectifier is installed between the spray pipe and the straight pipe; the flow rectifier comprises an outer pipe, a flow rectifier disposed inside the outer pipe and movable, and a first hydraulic cylinder for driving the flow rectifier to move, the two ends of the outer pipe being sealed and fixedly connected to the spray pipe and the straight pipe respectively; the piston rod of the first hydraulic cylinder is fixedly connected to a movable seat, the movable seat being slidably connected to the surface of the outer pipe and connected to the flow rectifier, and multiple arc-shaped flow rectifier plates are uniformly fixedly connected to the inner wall of the flow rectifier along its circumference.

[0006] Preferably, the movable seat is provided with a sliding hole, the surface of the rectifier tube is fixedly connected with a shaft that mates with the sliding hole, the surface of the movable seat is rotatably connected with a rotating frame, and the surface of the rotating frame is provided with a limiting hole that mates with the shaft.

[0007] Preferably, a tension spring is fixedly connected between the rotating frame and the movable seat, and a handle is fixedly connected to the rotating frame.

[0008] Preferably, one end of the rectifier plate protrudes outside the rectifier tube and extends into the interior of the injection tube, and the injection tube has a conical structure with its inner diameter gradually decreasing away from the rectifier tube.

[0009] Preferably, one end of the rectifier tube is provided with a sealing part that seals against the inner wall of the outer tube, and the other end is provided with a tapered part that matches the inner wall of the injection tube, and the rectifier plate is fixedly connected to the inner wall of the tapered part.

[0010] Preferably, a pair of connecting pieces that can fit against the inner wall of the injection pipe are symmetrically provided on both sides of the rectifier plate. One end of the connecting piece is fixedly connected to the inner wall of the rectifier pipe, and one end of the rectifier plate is provided with an oblique opening structure.

[0011] Preferably, the lower end of the telescopic sleeve is fixedly connected to a water inlet base and the upper end is fixedly connected to a rotary seat. One end of the bend is connected to a first bend joint that is sealed and rotatably connected to the rotary seat. The first bend joint is equipped with a first rotating mechanism for driving the bend to rotate horizontally.

[0012] Preferably, the other end of the bend is connected to a second bend connector that is connected to the spraying assembly, and a second rotating mechanism for driving the second bend connector to rotate vertically is installed on the bend.

[0013] Preferably, the water outlet control component includes an opening and closing plate and a second hydraulic cylinder for driving the opening and closing plate to rotate. The opening and closing plate is provided in a pair and symmetrically hinged to the end of the spray pipe, and each of the two opening and closing plates has a toothed block that meshes with each other at one end.

[0014] The beneficial effects of this invention are as follows:

[0015] 1. This invention, through the design of movable rectifier tubes and circumferentially distributed rectifier plates, can actively adjust the rectifier channel according to actual working conditions, effectively guide and rectify the water flow, reduce turbulence, vortices and pressure loss, thereby greatly improving the concentration and stability of the water flow. Under high pressure and high flow conditions, it can still maintain a tight water column, significantly improving the range and fire extinguishing efficiency.

[0016] 2. The present invention uses components such as a movable seat, a rotating frame, a tension spring, and a handle to form a transmission and locking mechanism for the rectifier tube, which not only realizes automatic hydraulic adjustment but also supports manual operation adjustment, making it easy to install, maintain, and perform emergency operations, thereby improving overall reliability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a telescopic fire monitor for fire trucks proposed in this invention.

[0018] Figure 2 for Figure 1 A frontal view diagram.

[0019] Figure 3 This is a schematic diagram of the spray assembly proposed in this invention.

[0020] Figure 4 This is a cross-sectional schematic diagram of the spray assembly proposed in this invention.

[0021] Figure 5 This is a schematic diagram of the rectifier component proposed in this invention.

[0022] Figure 6 This is a cross-sectional schematic diagram of the rectifier assembly proposed in this invention.

[0023] Figure 7 This is a schematic diagram of the structure of the movable base proposed in this invention.

[0024] Figure 8 This is a schematic diagram of the rectifier tube proposed in this invention.

[0025] Figure 9 This is a schematic diagram of the rectifier structure proposed in this invention.

[0026] The corresponding names of the reference numerals in the figure are as follows: 100, telescopic sleeve; 101, water inlet base; 102, rotating seat; 200, lifting mechanism; 300, jet assembly; 310, jet pipe; 320, rectifier assembly; 321, outer pipe; 322, movable seat; 3221, sliding hole; 3222, rotating frame; 3223, limiting hole; 3224, tension spring; 3225, handle; 323, rectifier pipe; 3231, sealing part; 323 2. Tapered section; 3233. Shaft; 324. Rectifier plate; 3241. Connecting plate; 3242. Slanted opening structure; 330. Straight pipe; 340. Booster pipe; 350. First hydraulic cylinder; 360. Water outlet control assembly; 361. Second hydraulic cylinder; 362. Tooth block; 363. Opening and closing plate; 400. First rotating mechanism; 500. Bend; 501. First bend pipe joint; 502. Second bend pipe joint; 600. Second rotating mechanism. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0028] Example: This example discloses a telescopic fire monitor for fire trucks, such as... Figures 1-9 As shown, the system includes a telescopic sleeve 100, a lifting mechanism 200 for raising and lowering the telescopic sleeve 100, a bend 500 connected to the telescopic sleeve 100, and a spray assembly 300 connected to the bend 500. In this embodiment, the lifting mechanism 200 is an electric telescopic rod, which is fixedly installed on the outer wall of the telescopic sleeve 100. The lifting mechanism 200 can raise the fire monitor, increasing the height of the spray assembly 300 to cover a greater distance and a wider area. The lower end of the telescopic sleeve 100 is fixedly connected to a water inlet base 101, and the upper end is fixedly connected to a swivel base 102. The swivel base 102 is fixedly connected to the inner tube of the telescopic sleeve 100. One end of the bend 500 is connected to a first bend joint 501 that is sealed and rotatably connected to the swivel base 102. A first rotating mechanism 400 for driving the bend 500 to rotate horizontally is installed on the first bend joint 501. The device can drive the bend 500 to rotate horizontally on the swivel base 102; the other end of the bend 500 is rotatably and sealed to a second bend joint 502 connected to the spray assembly 300, and the second bend joint 502 is fixedly and sealed to the spray assembly 300. A second rotating mechanism 600 is installed on the bend 500 to drive the second bend joint 502 to rotate vertically; in this embodiment, both the first rotating mechanism 400 and the second rotating mechanism 600 adopt a worm gear structure. The worm is driven to rotate by a motor, and the worm drives the worm wheel to rotate, which in turn drives the corresponding components to rotate, making the fire monitor transmission smooth, compact in structure, and able to obtain a large transmission ratio; in this embodiment, the vertical extension is achieved through the lifting mechanism 200, and the horizontal and pitch rotation is achieved through the first rotating mechanism 400 and the second rotating mechanism 600, so that the telescopic fire monitor has a precise water spraying capability with high stability in all space.

[0029] like Figures 3-6As shown, the jet assembly 300 includes a booster pipe 340, a straight pipe 330 fixedly connected to the booster pipe 340, a jet pipe 310 for jetting water flow, and a water outlet control assembly 360 installed at the end of the jet pipe 310. The booster pipe 340 is sealed and fixedly connected to the second bend connector 502. The inner diameter of the inlet of the booster pipe 340 is larger than the inner diameter of the outlet, which serves to boost the pressure and provide a fluid with higher kinetic energy for subsequent processes. The pressurized water flow enters the straight pipe 330. The jet pipe 310 and the straight pipe 330... A rectifier assembly 320 is installed between 0 and 0. The rectifier assembly 320 can reduce turbulence, vortices, and pressure loss, and improve the concentration and stability of the water flow. In this embodiment, the rectifier assembly 320 includes an outer pipe 321, a movable rectifier tube 323 disposed inside the outer pipe 321, and a first hydraulic cylinder 350 for moving the rectifier tube 323. Multiple arc-shaped rectifier vanes 324 are uniformly fixedly connected to the inner wall of the rectifier tube 323 along its circumference. In this embodiment, the number of rectifier vanes 324 is set to... There are four rectifiers 324, which can effectively cut and guide large-scale eddies in the water flow, reorganizing the turbulent flow into a more ordered, axial laminar or quasi-laminar state; in this embodiment, the two ends of the outer pipe 321 are respectively sealed and fixedly connected to the injection pipe 310 and the straight pipe 330; the first hydraulic cylinder 350 is installed on the outer wall of the straight pipe 330, and the piston rod of the first hydraulic cylinder 350 is fixedly connected to the movable seat 322. The movable seat 322 is slidably connected to the surface of the outer pipe 321 and connected to the rectifier pipe 323. When the piston rod of the pressure cylinder 350 extends or retracts, it drives the sliding seat 322 to slide, which in turn drives the rectifier tube 323 to move within the outer pipe 321, changing the position of the rectifier vane 324 within the spray pipe 310. In this embodiment, through the design of the movable rectifier tube 323 and the circumferentially distributed rectifier vane 324, the water flow is effectively guided and rectified, reducing turbulence, vortices and pressure loss, thereby greatly improving the concentration and stability of the water flow. Under high pressure and high flow conditions, the water column can still be kept tight, significantly improving the range and fire extinguishing efficiency.

[0030] Preferably, the water outlet control assembly 360 includes an opening / closing plate 363 and a second hydraulic cylinder 361 for driving the opening / closing plate 363 to rotate. The opening / closing plate 363 is provided in pairs and symmetrically hinged to the end of the spray pipe 310. Each of the two opening / closing plates 363 has a toothed block 362 that meshes with each other at one end. The second hydraulic cylinder 361 is hinged to the surface of the spray pipe 310. The piston rod of the second hydraulic cylinder 361 is hinged to one of the opening / closing plates 363. The extension and retraction of the piston rod of the second hydraulic cylinder 361 can drive one of the opening / closing plates 363 to rotate. When the opening / closing plate 363 rotates, it drives the other opening / closing plate 363 to rotate synchronously through the toothed block 362, thereby flexibly changing the shape and coverage of the water flow and enhancing the water cannon's ability to respond to different fire situations.

[0031] like Figure 7As shown, the movable seat 322 is provided with a sliding hole 3221. A shaft 3233 that mates with the sliding hole 3221 is fixedly connected to the surface of the rectifier tube 323. The shaft 3233 passes through the outer tube 321, and the outer tube 321 is provided with a clearance hole that slidably mates with the shaft 3233. A rotating frame 3222 is rotatably connected to the surface of the movable seat 322. The surface of the rotating frame 3222 is provided with a limiting hole 3223 that mates with the shaft 3233. A tension spring 3224 is fixedly connected between the rotating frame 3222 and the movable seat 322. The tension spring 3224 applies tension to the rotating frame 3222, making the position of the rotating frame 3222 stable. When the movable seat 322 moves, the shaft 3233 moves synchronously through the limiting of the rotating frame 3222. A handle 3225 is fixedly connected to the rotating frame 3222. The second hydraulic cylinder 361 drives the movable seat 3222. When the seat 322 moves, the moving seat 322 drives the rectifier tube 323 to move within the outer pipe 321 through the cooperation of the sliding hole 3221 and the shaft 3233. When the second hydraulic cylinder 361 fails, the handle 3225 can be manually operated to drive the rotating frame 3222 to rotate. When the rotating frame 3222 rotates, it drives the shaft 3233 to slide to the other end within the sliding hole 3221, thereby driving the rectifier tube 323 to move within the outer pipe 321. At this time, the direction of the tension force of the tension spring 3224 on the rotating frame 3222 changes, which will stabilize the position of the rotating frame 3222 again. Through the design of the moving seat 322, the rotating frame 3222 and the tension spring 3224, this embodiment can not only realize the automatic adjustment of the hydraulic rectifier tube 323, but also enable manual adjustment in emergency situations, thereby improving the overall reliability of the device.

[0032] like Figures 8-9 As shown, one end of the rectifier tube 323 is provided with a sealing part 3231 that seals against the inner wall of the outer tube 321. The sealing part 3231 seals against the inner wall of the outer tube 321, ensuring the seal between the rectifier tube 323 and the outer tube 321 during movement. In this embodiment, the injection tube 310 has a conical structure and its inner diameter gradually decreases in the direction away from the rectifier tube 323. The other end of the rectifier tube 323 is provided with a conical part 3232 that matches the inner wall of the injection tube 310. The rectifier plate 324 is fixedly connected to the inner wall of the conical part 3232. One end of the rectifier plate 324 protrudes outside the conical part 3232 and extends into the inside of the injection tube 310, so that a rectifier channel can be formed between the rectifier plate 324 and the inner wall of the injection tube 310.

[0033] Preferably, a pair of connecting pieces 3241 are symmetrically provided on both sides of the rectifier 324, which can fit against the inner wall of the jet pipe 310. The connecting pieces 3241 improve the sealing performance when the rectifier 324 contacts the jet pipe 310. One end of the connecting piece 3241 is fixedly connected to the inner wall of the rectifier pipe 323, and the water inlet end of the rectifier 324 is provided as a bevel structure 3242. The bevel structure 3242 can increase the water flow rate through the rectifier channel.

[0034] In this embodiment, the second hydraulic cylinder 361 drives the moving seat 322 to move as a whole, which in turn drives the rectifier tube 323 to move within the outer pipe 321. When the rectifier tube 323 moves closer to the spray pipe 310, the outer wall of the rectifier tube 323 comes into contact with the outer wall of the spray pipe 310, and the rectifier plate 324 penetrates deeper into the conical section of the spray pipe 310. The distance between the rectifier plate 324 and the inner wall of the spray pipe 310 decreases, and a tighter and longer streamlined rectifier channel is formed between the rectifier plate 324 and the pipe wall, significantly increasing the rectification effect. When the rectifier tube 323 retracts, the interference with the water flow is reduced. Firefighters can control the forward and backward movement of the rectifier tube 323 in real time according to the actual required range, flow rate and extinguishing mode (direct current / bloom), thereby adjusting the water flow pattern.

[0035] Finally, it should be noted that in the description of this invention, the terms "vertical," "upper," "lower," "horizontal," 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 invention 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 invention.

[0036] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A telescopic fire monitor for a fire truck, characterized by, The utility model provides a kind of water spraying device, including telescopic sleeve (100), for driving telescopic sleeve (100) to lift lifting mechanism (200), and the elbow pipe (500) is connected with telescopic sleeve (100), and the spray assembly (300) is connected on elbow pipe (500); The spray assembly (300) includes a booster pipe (340), a straight pipe (330) fixedly connected with the booster pipe (340), a spray pipe (310) for spraying water flow, and a water outlet control assembly (360) installed at the end of the spray pipe (310). A flow regulating assembly (320) is installed between the spray pipe (310) and the straight pipe (330). The flow regulating assembly (320) includes an external connecting pipe (321), a flow regulating pipe (323) movably arranged inside the external connecting pipe (321), and a first hydraulic cylinder (350) for driving the flow regulating pipe (323) to move. The external connecting pipe (321) is sealingly and fixedly connected with the spray pipe (310) and the straight pipe (330) at both ends. The piston rod of the first hydraulic cylinder (350) is fixedly connected with a moving seat (322), which is slidingly connected to the surface of the external connecting pipe (321) and connected with the flow regulating pipe (323). The inner wall of the flow regulating pipe (323) is uniformly fixedly connected with a plurality of arc-shaped flow regulating fins (324) along its circumference.

2. A telescopic fire monitor for a fire fighting vehicle as claimed in claim 1, wherein, The moving seat (322) is provided with a sliding hole (3221), and the surface of the flow regulating pipe (323) is fixedly connected with a shaft rod (3233) matched with the sliding hole (3221). The surface of the moving seat (322) is rotatably connected with a rotating frame (3222), and the surface of the rotating frame (3222) is provided with a limiting hole (3223) matched with the shaft rod (3233).

3. A telescopic fire monitor for a fire fighting vehicle according to claim 2, characterized in that The rotating frame (3222) is fixedly connected with a tension spring (3224) between the moving seat (322), and the rotating frame (3222) is fixedly connected with a handle (3225).

4. The telescopic fire monitor for a fire fighting vehicle according to claim 1, characterized in that, One end of the flow regulating fin (324) is exposed outside the flow regulating pipe (323) and extends into the spray pipe (310). The spray pipe (310) has a conical structure, and its inner diameter gradually decreases away from the flow regulating pipe (323).

5. The telescopic fire monitor for a fire fighting vehicle according to claim 1, wherein One end of the flow regulating pipe (323) is provided with a sealing portion (3231) sealingly fitted with the inner wall of the external connecting pipe (321), and the other end is provided with a conical portion (3232) matched with the inner wall of the spray pipe (310). The flow regulating fin (324) is fixedly connected to the inner wall of the conical portion (3232).

6. The telescopic fire monitor for a fire fighting vehicle according to claim 1, wherein A pair of connecting fins (3241) capable of being fitted with the inner wall of the spray pipe (310) are symmetrically arranged on both sides of the flow regulating fin (324). One end of the connecting fin (3241) is fixedly connected with the inner wall of the flow regulating pipe (323), and one end of the flow regulating fin (324) is provided as an inclined structure (3242).

7. The telescopic fire monitor for a fire fighting vehicle according to claim 1, wherein The telescopic sleeve (100) is fixedly connected with a water inlet base (101) at the lower end and a rotary seat (102) at the upper end. One end of the elbow pipe (500) is connected with a first elbow pipe joint (501) sealingly and rotatably connected with the rotary seat (102). The first rotating mechanism (400) for driving the elbow pipe (500) to horizontally rotate is installed on the first elbow pipe joint (501).

8. A telescopic fire monitor for a fire fighting vehicle according to claim 7, characterized in that The other end of the elbow pipe (500) is connected with a second elbow pipe joint (502) connected with the spraying assembly (300), and a second rotating mechanism (600) is installed on the elbow pipe (500) and used for driving the second elbow pipe joint (502) to rotate vertically.

9. The telescopic fire monitor for a fire fighting vehicle according to claim 1, wherein The water outlet regulating assembly (360) comprises opening and closing sheets (363) and second hydraulic cylinders (361) used for driving the opening and closing sheets (363) to rotate, the opening and closing sheets (363) are symmetrically hinged at the ends of the spraying pipes (310), and the two opening and closing sheets (363) are each provided with tooth blocks (362) which are engaged with each other.

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