A fire truck suitable for cable tube tunnels

Abstract

This invention relates to the technical field of fire extinguishing devices for cable duct tunnels, and proposes a fire truck suitable for cable duct tunnels. The truck includes a robotic arm mounted on the top of a mobile vehicle, with a drilling and spraying mechanism installed on the robotic arm. Upon receiving a fire extinguishing command, the mobile vehicle travels on an iron or cement slab laid above the cable duct tunnel. Upon reaching the fire location, the motor is activated, driving a pagoda drill bit at high speed via its shaft. Simultaneously, external control equipment adjusts the position of the pagoda drill bit with the robotic arm, drilling a hole in the iron or cement slab above the fire point. After drilling, the robotic arm lowers the pagoda drill bit, submerging the spraying component under the iron or cement slab. The extinguishing agent is then delivered to a receiving component, and from there to the spraying component, enabling precise fire extinguishing of the fire point under the iron or cement slab. The operation is simple and quick, greatly improving fire extinguishing efficiency and possessing high practical value.

Description

Technical Field

[0001] This invention relates to the field of fire extinguishing devices for cable tunnels, and more specifically, to a fire truck suitable for cable tunnels. Background Technology

[0002] A cable tunnel is a corridor or tunnel-like structure used to accommodate a large number of cables laid on cable supports. Besides providing better protection and centralized cable storage, cable tunnels also facilitate cable inspection and maintenance. Currently, to facilitate cable inspection and maintenance, iron plates or cement slabs are typically laid over the tunnel containing a large number of cables, serving as a pathway for people and vehicles.

[0003] However, in pipe tunnels with iron plates or cement slabs, when a fire breaks out in the cables inside the tunnel, fire trucks cannot directly extinguish the fire at the ignition point, and the fire extinguishing methods are limited. In addition, manual removal of the iron plates or cement slabs is required, which greatly increases the difficulty of fire extinguishing, reduces the efficiency of fire extinguishing, and can easily cause unnecessary losses, resulting in poor safety performance.

[0004] In view of this, the present invention proposes a fire truck suitable for cable tunnels. Summary of the Invention

[0005] This invention proposes a fire truck suitable for cable tunnels, which solves the problem in related technologies that when a fire occurs in a tunnel with iron plates or cement slabs, it is difficult for fire trucks to directly extinguish the fire, and manual removal of the iron plates or cement slabs is still required, which greatly increases the difficulty of fire extinguishing and reduces the efficiency of fire extinguishing.

[0006] The technical solution of the present invention is as follows: A fire truck suitable for cable tunnels includes: a mobile vehicle and a mechanical arm installed on the top of the mobile vehicle. A drilling and spraying mechanism is provided at one end of the mechanical arm. The drilling and spraying mechanism includes an inlet component. An outer cover is provided inside the inlet component. A motor is fixedly sleeved inside the outer cover. A pagoda drill bit is fixed at the end of the motor shaft away from the motor. A spraying component is provided on the shaft located on one side of the pagoda drill bit.

[0007] A foam fire extinguishing mechanism is installed on the mobile vehicle, the foam fire extinguishing mechanism including a first housing fixedly installed on the top of the mobile vehicle. A dry powder fire extinguishing mechanism is also installed on the mobile vehicle, the dry powder fire extinguishing mechanism including a second housing fixedly installed on the top of the mobile vehicle. A winding mechanism is installed inside both the second housing and the first housing. A foam delivery pipe is connected between the winding mechanism located inside the first housing and the receiving component. A dry powder delivery pipe is connected between the winding mechanism located inside the second housing and the receiving component.

[0008] Preferably, the merging component includes an outer cylinder fixedly sleeved on the outer wall of the outer cover cylinder, a rotating disk rotatably connected between the outer cylinder and the outer cover cylinder, a limiting slide rail is formed inside the outer periphery of the rotating disk, a limiting ring is fixed on the inner wall of the outer cylinder, and the limiting ring slides and fits in contact with the limiting slide rail.

[0009] Preferably, the outer cylinder, the outer cover cylinder, and the rotating disk together form a collecting cavity. Two through holes are opened through the outer wall of the outer cylinder. The two through holes are respectively fixedly sleeved with the dry powder conveying pipe and the foam conveying pipe. Multiple connecting pipes are fixedly connected to the rotating disk. The multiple connecting pipes are arranged in a ring on the rotating disk, and the connecting pipes are connected to the collecting cavity.

[0010] Preferably, the ejection component includes a main pipe fixedly sleeved on the outer wall of the machine shaft, a conveying chamber is provided inside the main pipe, and a plurality of positive nozzles and oblique nozzles communicating with the conveying chamber are fixed on the outer wall of the main pipe. The plurality of positive nozzles and oblique nozzles are arranged in a ring array on the outer wall of the main pipe, and each positive nozzle and oblique nozzle is provided with a solenoid valve for controlling the opening and closing of the positive nozzle and oblique nozzle.

[0011] Preferably, the end of the connecting pipe away from the rotating disk is fixedly connected to the main pipe, and the conveying chamber and the collecting chamber are connected by the connecting pipe.

[0012] Preferably, the foam fire extinguishing mechanism further includes a water tank disposed inside the first housing, a water pump disposed inside the water tank, a water supply pipe fixed to the outlet end of the water pump, the water supply pipe extending out of the water tank and connected to a proportioning mixer, a foam liquid tank disposed inside the first housing located on one side of the water tank, the proportioning mixer being installed on the top of the foam liquid tank, and a first output pipe being connected to the end of the proportioning mixer away from the water supply pipe.

[0013] Preferably, the dry powder fire extinguishing mechanism further includes a tank disposed inside the second housing, a spray pipe disposed on the top of the tank, an electromagnetic valve disposed on the spray pipe for controlling the opening and closing of the spray pipe, and a second output pipe connected to the end of the spray pipe away from the tank.

[0014] Preferably, the winding mechanism includes a first upright and a second upright arranged in parallel, with a fixed connecting pipe fixedly sleeved on the second upright, and the fixed connecting pipes on the two winding mechanisms being fixedly connected to the second output pipe and the first output pipe, respectively.

[0015] Preferably, the winding mechanism further includes a fixed cover, inside which a shaft is rotatably connected, and a coil spring is connected between the shaft and the fixed cover. A rotating column is fixed at the end of the shaft away from the fixed cover, and a right-angle tube is fixed inside the rotating column. The right-angle tube rotatably passes through the inside of the first upright and is rotatably connected to the fixed connecting pipe.

[0016] Preferably, the ends of the right-angle tubes on the two winding mechanisms that are away from the fixed connecting pipe are respectively fixedly connected to the dry powder conveying pipe and the foam conveying pipe, and the dry powder conveying pipe and the foam conveying pipe slide through the outer wall of the second box and the first box respectively.

[0017] The working principle and beneficial effects of this invention are as follows:

[0018] 1. In this invention, a robotic arm is installed on the top of a mobile vehicle, and a drilling and spraying mechanism is installed at one end of the robotic arm. The drilling and spraying mechanism includes an inlet component, an outer casing, a motor, a pagoda drill bit, and an outlet component. The mobile vehicle is equipped with both a foam extinguishing mechanism and a dry powder extinguishing mechanism. During fire extinguishing, dry powder extinguishing agent is used preferentially. Foam extinguishing agent is only used when dry powder extinguishing agent fails to extinguish the fire. Upon receiving a fire extinguishing command, the mobile vehicle travels on an iron plate or cement slab laid above the cable tunnel. Upon reaching the fire location, the motor is started, and the motor drives the pagoda drill bit to rotate at high speed via its shaft. Simultaneously, external control equipment controls the robotic arm to adjust the position of the pagoda drill bit, causing it to drill a hole in the iron plate or cement slab above the fire point. After drilling is completed, the robotic arm moves the pagoda drill bit downward, so that the ejector component is submerged under the iron plate or cement slab. Then, the foam extinguishing agent or dry powder extinguishing agent in the foam extinguishing mechanism or dry powder extinguishing mechanism is delivered to the receiving component, and then delivered to the ejector component. This allows for precise extinguishing of the fire point under the iron plate or cement slab. The operation is simple and quick, greatly improving the fire extinguishing efficiency and making it highly valuable.

[0019] 2. In this invention, when the range of the fire point inside the tunnel is large, the motor can be started at the same time as the dry powder or foam extinguishing agent is sprayed by the positive nozzle and the oblique nozzle on the spraying component. The motor drives the spraying component to rotate through its shaft, so that the dry powder or foam extinguishing agent sprayed by the positive nozzle and the oblique nozzle can be extinguished over a larger area under the action of centrifugal force, which has good practical performance.

[0020] 3. In this invention, a winding mechanism is provided inside the housing of both the foam fire extinguishing mechanism and the dry powder fire extinguishing mechanism. The two winding mechanisms are connected to the receiving component through the foam conveying pipe and the dry powder conveying pipe, respectively. Under the action of the winding mechanism, the dry powder conveying pipe and the foam conveying pipe can be automatically wound and stored, avoiding the problems of the dry powder conveying pipe and the foam conveying pipe being tangled, bent, or placed messily due to being too long. Attached Figure Description

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] Figure 1 This is a three-dimensional structural diagram of a fire truck suitable for cable tunnels proposed in this invention;

[0023] Figure 2 This is a three-dimensional structural diagram of the drilling and ejection mechanism proposed in this invention;

[0024] Figure 3 This is a schematic diagram of the structure of the merging component proposed in this invention;

[0025] Figure 4 This is a schematic diagram of the structure of the ejection component proposed in this invention;

[0026] Figure 5 This is a schematic diagram of the structure of the foam fire extinguishing mechanism proposed in this invention;

[0027] Figure 6 This is a schematic diagram of the structure of the dry powder fire extinguishing mechanism proposed in this invention;

[0028] Figure 7 This is a schematic diagram of the structure of the winding mechanism proposed in this invention;

[0029] In the diagram: 1. Mobile vehicle; 2. Foam extinguishing mechanism; 21. First housing; 22. Water bucket; 23. Water supply pipe; 24. Foam liquid tank; 25. Proportioning mixer; 26. First output pipe; 3. Dry powder extinguishing mechanism; 31. Second housing; 32. Tank; 33. Discharge pipe; 34. Second output pipe; 4. Dry powder delivery pipe; 5. Foam delivery pipe; 6. Robotic arm; 7. Drilling and spraying mechanism; 71. Inlet component; 711. Outer cylinder; 712. Through hole; 713. Collection chamber 714. Rotary disk; 715. Connecting pipe; 716. Limiting ring; 717. Limiting slide; 72. Ejection component; 721. Main pipe; 722. Angled nozzle; 723. Straight nozzle; 724. Conveying chamber; 73. Pagoda drill bit; 74. Motor; 741. Shaft; 75. Outer cover; 8. Winding mechanism; 81. First upright; 82. Second upright; 83. Fixed connecting pipe; 84. Right angle pipe; 85. Rotating column; 86. Fixed cover; 87. Coil spring; 88. Shaft. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figure 1 , Figure 2 , Figure 3 as well as Figure 4A fire truck suitable for cable tunnels includes: a mobile vehicle 1 and a mechanical arm 6 mounted on the top of the mobile vehicle 1. A drilling and spraying mechanism 7 is provided at one end of the mechanical arm 6. The drilling and spraying mechanism 7 includes an inlet component 71, an outer casing 75 inside the inlet component 71, and a motor 74 fixedly mounted inside the outer casing 75. A pagoda drill bit 73 is fixed at the end of a shaft 741 on the motor 74 away from the motor 74. A spraying component 72 is provided on the shaft 741 located on one side of the pagoda drill bit 73. A foam extinguishing mechanism 2 and a dry powder extinguishing mechanism 3 are provided on the mobile vehicle 1. During firefighting operations, the dry powder extinguishing mechanism 3 and the foam extinguishing mechanism 2 deliver dry powder and foam to the inlet component 71, respectively.

[0032] The merging component 71 includes an outer cylinder 711 fixedly sleeved on the outer wall of the outer cover cylinder 75. A rotating disk 714 is rotatably connected between the outer cylinder 711 and the outer cover cylinder 75. A limiting slide 717 is formed inside the outer periphery of the rotating disk 714. A limiting ring 716 is fixed on the inner wall of the outer cylinder 711, and the limiting ring 716 slides and fits against the limiting slide 717. The outer cylinder 711, the outer cover cylinder 75, and the rotating disk 714 together form a collecting cavity 713. Two through holes 712 are formed through the outer wall of the outer cylinder 711. The two through holes 712 are fixedly sleeved to the dry powder conveying pipe 4 and the foam conveying pipe 5, respectively. Multiple connecting pipes 715 are fixedly connected to the rotating disk 714. The multiple connecting pipes 715 are arranged in a ring array on the rotating disk 714, and the connecting pipes 715 are connected to the collecting cavity 713. The ejection component 72 includes a main pipe 721 fixedly sleeved on the outer wall of the machine shaft 741. A conveying chamber 724 is formed inside the main pipe 721. Multiple straight nozzles 723 and angled nozzles 722, which communicate with the conveying chamber 724, are fixed on the outer wall of the main pipe 721. The multiple straight nozzles 723 and angled nozzles 722 are arranged in a ring array on the outer wall of the main pipe 721, and each straight nozzle 723 and angled nozzle 722 is equipped with a solenoid valve for controlling the opening and closing of the straight nozzle 723 and angled nozzle 722. The end of the connecting pipe 715 away from the rotating disk 714 is fixedly connected to the main pipe 721, and the conveying chamber 724 and the collecting chamber 713 are connected through the connecting pipe 715. Upon receiving a fire extinguishing command, the mobile vehicle 1 travels on the iron or cement slab laid above the cable tunnel. Upon reaching the fire location, the motor 74 is started, and the motor 74 drives the pagoda drill bit 73 to rotate at high speed via its shaft 741. Simultaneously, the external control equipment controls the robotic arm 6 to adjust the position of the pagoda drill bit 73, so that it drills a hole in the iron or cement slab above the fire point. After drilling is completed, the robotic arm 6 moves the pagoda drill bit 73 downward, so that the spraying component 72 is submerged under the iron or cement slab. Then, according to the specific location of the fire point, the solenoid valves on the corresponding positions of the main nozzle 723 and the angled nozzle 722 are opened (the main nozzle 723 is designed to change the fire extinguishing position vertically as the main pipe 721 moves downward; when the fire point is located at a lower part of the tunnel, the downward movement of the pagoda drill bit 73 is limited, so the downward-sloping angled nozzle 722 can be used for fire extinguishing). During the fire extinguishing process, the dry powder extinguishing mechanism 3 and the foam extinguishing mechanism 2 deliver dry powder and foam to the collection chamber 713. The dry powder or foam extinguishing agent in the collection chamber 713 is delivered to the delivery chamber 724 through the connecting pipe 715. The dry powder or foam extinguishing agent in the delivery chamber 724 is sprayed out through the positive nozzle 723 or the oblique nozzle 722.

[0033] It is worth noting that when the fire point is large, the motor 74 can be started at the same time as the dry powder or foam extinguishing agent is sprayed from the positive nozzle 723 and the angled nozzle 722. The motor 74 drives the spraying component 72 to rotate through its shaft 741, so that the dry powder or foam extinguishing agent sprayed from the positive nozzle 723 and the angled nozzle 722 can be used to extinguish the fire over a larger area under the action of centrifugal force.

[0034] Please see Figure 2 , Figure 5 as well as Figure 6 The foam extinguishing mechanism 2 includes a first housing 21 fixedly installed on the top of the mobile vehicle 1, and the dry powder extinguishing mechanism 3 includes a second housing 31 fixedly installed on the top of the mobile vehicle 1. Both the second housing 31 and the first housing 21 are equipped with a winding mechanism 8. A foam delivery pipe 5 connects the winding mechanism 8 located inside the first housing 21 to the receiving component 71, and a dry powder delivery pipe 4 connects the winding mechanism 8 located inside the second housing 31 to the receiving component 71. Under the action of the dry powder delivery pipe 4 and the foam delivery pipe 5, the dry powder extinguishing agent and foam extinguishing agent generated in the dry powder extinguishing mechanism 3 and the foam extinguishing mechanism 2 can be smoothly delivered to the receiving component 71.

[0035] Please see Figure 5 The foam extinguishing mechanism 2 also includes a water tank 22 disposed inside a first housing 21. A water pump is installed inside the water tank 22, and a water delivery pipe 23 is fixed to the outlet of the water pump. The water delivery pipe 23 extends out of the water tank 22 and is connected to a proportioning mixer 25. A foam liquid tank 24 is disposed inside the first housing 21 located on one side of the water tank 22. The proportioning mixer 25 is installed on top of the foam liquid tank 24, and the end of the proportioning mixer 25 furthest from the water delivery pipe 23 is connected to a first output pipe 26. When using foam extinguishing agent for fire extinguishing, the water inside the water tank 22 is pumped by the water pump into the proportioning mixer 25 to mix with the foam liquid, forming foam, which is then sprayed out through the first output pipe 26.

[0036] Please see Figure 6 The dry powder fire extinguishing mechanism 3 also includes a tank 32 disposed inside the second housing 31. A spray pipe 33 is disposed on the top of the tank 32, and an electromagnetic valve is disposed on the spray pipe 33 to control its opening and closing. A second output pipe 34 is connected to the end of the spray pipe 33 furthest from the tank 32. When using dry powder extinguishing agent for fire extinguishing, the electromagnetic valve on the spray pipe 33 is opened, allowing the high-pressure gas inside the tank 32 to carry the dry powder out through the spray pipe 33 and the second output pipe 34.

[0037] Please see Figure 1 , Figure 5 , Figure 6 as well as Figure 7The winding mechanism 8 includes a first upright 81 and a second upright 82 arranged in parallel. A fixed connecting pipe 83 is fixedly sleeved on the second upright 82. The fixed connecting pipes 83 on the two winding mechanisms 8 are fixedly connected to the second output pipe 34 and the first output pipe 26, respectively. The winding mechanism 8 also includes a fixed cover 86. A shaft 88 is rotatably connected inside the fixed cover 86. A coil spring 87 is connected between the shaft 88 and the fixed cover 86. A rotating column 85 is fixed to the end of the shaft 88 away from the fixed cover 86. A right-angle tube 84 is fixed inside the rotating column 85. The right-angle tube 84 rotatably passes through the inside of the first upright 81 and is rotatably connected to the fixed connecting pipe 83. The ends of the right-angle tubes 84 on the two winding mechanisms 8 away from the fixed connecting pipe 83 are fixedly connected to the dry powder conveying pipe 4 and the foam conveying pipe 5, respectively. The dry powder conveying pipe 4 and the foam conveying pipe 5 are wound around the outer wall of the rotating column 85. The dry powder conveying pipe 4 and the foam conveying pipe 5 slide through the outer walls of the second housing 31 and the first housing 21, respectively. The extinguishing agent delivered by the second output pipe 34 and the first output pipe 26 is delivered to the dry powder delivery pipe 4 and the foam delivery pipe 5 respectively through the fixed pipe 83 and the right-angle pipe 84. When the robotic arm 6 adjusts the position of the drilling and spraying mechanism 7, when it is necessary to pull the dry powder delivery pipe 4 and the foam delivery pipe 5 out of the box, the dry powder delivery pipe 4 and the foam delivery pipe 5 can drive the rotating column 85 to rotate, releasing the dry powder delivery pipe 4 and the foam delivery pipe 5, causing the coil spring 87 to tighten. When the dry powder delivery pipe 4 and the foam delivery pipe 5 are no longer pulled by the drilling and spraying mechanism 7, the tightened coil spring 87 drives the rotating column 85 to rotate and reset through the shaft 88, and rewinds and stores the dry powder delivery pipe 4 and the foam delivery pipe 5.

[0038] Working principle and operating procedure: Upon receiving a fire extinguishing command, the mobile vehicle 1 moves across the iron or cement slab laid above the cable tunnel. Upon reaching the fire location, the motor 74 is started. The motor 74, through its shaft 741, drives the pagoda drill bit 73 to rotate at high speed. Simultaneously, external control equipment controls the robotic arm 6 to adjust the position of the pagoda drill bit 73, causing it to drill a hole in the iron or cement slab above the fire. After drilling, the robotic arm 6 lowers the pagoda drill bit 73, causing the spray nozzle 72 to submerge under the iron or cement slab. Then, depending on the specific location of the fire, the solenoid valves on the corresponding direct nozzle 723 and angled nozzle 722 are opened. During the fire extinguishing process, dry powder extinguishing agent is used first. Foam extinguishing agent is only used when dry powder extinguishing agent fails. The dry powder extinguishing mechanism 3 and the foam extinguishing mechanism 2 respectively transport dry powder and foam to the collection chamber 713 through the dry powder delivery pipe 4 and the foam delivery pipe 5. The dry powder or foam extinguishing agent in the collection chamber 713 is then transported to the delivery chamber 724 through the connecting pipe 715. The dry powder or foam extinguishing agent in the delivery chamber 724 is then sprayed out through the straight nozzle 723 or the angled nozzle 722. It is worth noting that when the fire point is large, the motor 74 can be started while the straight nozzle 723 and the angled nozzle 722 are spraying dry powder or foam extinguishing agent. The motor 74 drives the spraying component 72 to rotate through its shaft 741, so that the dry powder or foam extinguishing agent sprayed by the straight nozzle 723 and the angled nozzle 722 can extinguish the fire over a wider area under the action of centrifugal force.

[0039] When the robotic arm 6 adjusts the position of the drilling and blasting mechanism 7, and when it is necessary to pull the dry powder conveying pipe 4 and the foam conveying pipe 5 out of the box, the dry powder conveying pipe 4 and the foam conveying pipe 5 can drive the rotating column 85 to rotate, releasing the dry powder conveying pipe 4 and the foam conveying pipe 5 on the rotating column 85, causing the coil spring 87 to tighten. When the dry powder conveying pipe 4 and the foam conveying pipe 5 are no longer pulled by the drilling and blasting mechanism 7, the tightened coil spring 87 drives the rotating column 85 to rotate and reset through the shaft 88, and rewinds and stores the dry powder conveying pipe 4 and the foam conveying pipe 5, avoiding the problems of the dry powder conveying pipe 4 and the foam conveying pipe 5 being tangled, bent, or placed messily due to being too long.

[0040] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. 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 fire truck suitable for use in a cable duct tunnel, comprising: The mobile vehicle (1) and the mechanical arm (6) installed on the top of the mobile vehicle (1) are characterized in that a drilling and spraying mechanism (7) is arranged at one end of the mechanical arm (6), the drilling and spraying mechanism (7) comprises a converging part (71), an outer cover cylinder (75) is arranged inside the converging part (71), a motor (74) is fixedly sleeved inside the outer cover cylinder (75), a machine shaft (741) on the motor (74) is fixed with a pagoda drill bit (73) away from one end of the motor (74), and a spraying part (72) is arranged on the machine shaft (741) on one side of the pagoda drill bit (73). A foam fire extinguishing mechanism (2) is provided on the mobile vehicle (1). The foam fire extinguishing mechanism (2) includes a first housing (21) fixedly installed on the top of the mobile vehicle (1). A dry powder fire extinguishing mechanism (3) is provided on the mobile vehicle (1). The dry powder fire extinguishing mechanism (3) includes a second housing (31) fixedly installed on the top of the mobile vehicle (1). A winding mechanism (8) is provided inside both the second housing (31) and the first housing (21). A foam delivery pipe (5) is connected between the winding mechanism (8) located inside the first housing (21) and the receiving component (71). A foam delivery pipe (5) is located inside the second housing (31). A dry powder conveying pipe (4) is connected between the winding mechanism (8) and the receiving component (71). The receiving component (71) includes an outer cylinder (711) fixedly sleeved on the outer wall of the outer cover cylinder (75). A rotating disk (714) is rotatably connected between the outer cylinder (711) and the outer cover cylinder (75). A limiting slide (717) is opened inside the outer periphery of the rotating disk (714). A limiting ring (716) is fixed on the inner wall of the outer cylinder (711). The limiting ring (716) slides and fits against the limiting slide (717). The outer cylinder (711), the outer cover cylinder (75), and the rotating disk (714) together form a converging structure. The cavity (713) has two through holes (712) through the outer wall of the outer cylinder (711). The two through holes (712) are respectively fixedly sleeved with the dry powder conveying pipe (4) and the foam conveying pipe (5). Multiple connecting pipes (715) are fixedly connected to the rotating disk (714). The multiple connecting pipes (715) are arranged in a ring on the rotating disk (714), and the connecting pipes (715) are connected to the collecting cavity (713). The spraying component (72) includes a main pipe (721) fixedly sleeved on the outer wall of the machine shaft (741). A conveying cavity (724) is opened inside the main pipe (721). Multiple positive nozzles (723) and oblique nozzles (722) connected to the conveying chamber (724) are fixed on the outer wall of the main pipe (721). The multiple positive nozzles (723) and oblique nozzles (722) are arranged in a ring on the outer wall of the main pipe (721). Each positive nozzle (723) and oblique nozzle (722) is equipped with a solenoid valve to control the opening and closing of the positive nozzle (723) and oblique nozzle (722). The end of the connecting pipe (715) away from the rotating disk (714) is fixedly connected to the main pipe (721). The conveying chamber (724) and the collecting chamber (713) are connected through the connecting pipe (715).

2. A fire fighting vehicle suitable for use in cable ducting tunnels according to claim 1, characterized in that, The foam fire extinguishing mechanism (2) also includes a water tank (22) set inside the first box (21), a water pump is set inside the water tank (22), a water delivery pipe (23) is fixed at the water outlet end of the water pump, the water delivery pipe (23) extends out of the water tank (22) and is connected to a proportioning mixer (25), a foam liquid tank (24) is set inside the first box (21) located on one side of the water tank (22), the proportioning mixer (25) is installed on the top of the foam liquid tank (24), and the end of the proportioning mixer (25) away from the water delivery pipe (23) is connected to a first output pipe (26).

3. A fire fighting vehicle suitable for use in cable ducting tunnels according to claim 2, characterized in that, The dry powder fire extinguishing mechanism (3) also includes a tank (32) located inside the second housing (31). A spray pipe (33) is provided on the top of the tank (32). An electromagnetic valve is provided on the spray pipe (33) to control the opening and closing of the spray pipe (33). A second output pipe (34) is connected to the end of the spray pipe (33) away from the tank (32).

4. A fire fighting vehicle suitable for use in cable ducting tunnels according to claim 3, characterized in that, The winding mechanism (8) includes a first upright (81) and a second upright (82) arranged in parallel. A fixed pipe (83) is fixedly sleeved on the second upright (82). The fixed pipes (83) on the two winding mechanisms (8) are respectively fixedly connected to the second output pipe (34) and the first output pipe (26).

5. A fire fighting vehicle suitable for use in cable ducting tunnels according to claim 4, characterized in that, The winding mechanism (8) also includes a fixed cover (86), inside which a shaft (88) is rotatably connected. A coil spring (87) is connected between the shaft (88) and the fixed cover (86). A rotating column (85) is fixed at one end of the shaft (88) away from the fixed cover (86). A right-angle tube (84) is fixed inside the rotating column (85). The right-angle tube (84) rotatably passes through the inside of the first upright (81) and is rotatably connected to the fixed connecting pipe (83).

6. A fire fighting vehicle suitable for use in cable ducting tunnels according to claim 5, characterized in that, The right-angle tubes (84) on the two winding mechanisms (8) are respectively connected to the dry powder conveying pipe (4) and the foam conveying pipe (5) at the ends away from the fixed connecting pipe (83). The dry powder conveying pipe (4) and the foam conveying pipe (5) slide through the outer walls of the second box (31) and the first box (21).

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