A highway tunnel movable water spray fire extinguishing system

Abstract

The application discloses a highway tunnel movable water spray fire extinguishing system and relates to the technical field of fire extinguishing equipment. The system comprises a fire alarm, a water delivery pipe assembly, a running track assembly and a plurality of trolleys. The water delivery pipe assembly is fixed near the top of the inner wall of the tunnel, and a plurality of water outlets with combined joints are arranged at the bottom. The trolley comprises a sliding trolley body, a sliding running assembly, a lifting joint assembly, a delivery pipe and a distribution assembly. The lifting joint assembly comprises an insertion joint and a joint lifting assembly. At least two trolleys are provided with side water outlets and a coiled belt body, and at least one of the other trolleys is provided with a water spray gun. The coiled belt body is expanded and sprays water to form a water curtain after being filled with water. The system has the technical effects of low cost, simple structure, convenient layout after the completion of tunnel construction, low layout cost, convenient reconstruction, flexible movement, efficient fire spreading prevention, effective temperature and smoke isolation and the like.

Description

Technical Field

[0001] This invention relates to the field of fire extinguishing equipment technology, and in particular to a mobile water spray fire extinguishing system for highway tunnels. Background Technology

[0002] In recent years, highway tunnels have become ubiquitous in my country, especially large and long highway tunnels on some national trunk lines and cross-sea and cross-river tunnels in some cities. These tunnels have become the "throat" sections of the national trunk lines and the transportation hubs of cities. Once an accident occurs in these tunnels, it will seriously block traffic or disrupt the smooth flow of the traffic "arteries".

[0003] In order to solve the above problems, a large number of water spray fire extinguishing systems of various specifications and forms have been proposed in the existing technology. However, they generally suffer from high cost, complex structure, need to be constructed during tunnel construction, difficulty in deployment and maintenance, poor flexibility of use, poor effect in preventing the spread of fire and heat and smoke insulation, which are not conducive to practical use. Summary of the Invention

[0004] This application provides a mobile water mist fire extinguishing system for highway tunnels, which solves the technical problems of existing highway tunnel fire extinguishing systems, such as high cost, complex structure, need for construction during tunnel construction, difficulty in deployment and maintenance, poor flexibility of use, and poor fire prevention and heat and smoke insulation effects. The mobile water mist fire extinguishing system for highway tunnels is low in cost, simple in structure, can be deployed after tunnel construction, has low deployment cost, is easy to modify, is flexible in movement, and can effectively prevent the spread of fire and effectively insulate against heat and smoke.

[0005] This application provides a portable water spray fire extinguishing system for highway tunnels, including a fire alarm, a water supply pipe assembly, a travel track assembly fixed to the bottom of the water supply pipe assembly and used to guide the movement of trolleys, and multiple trolleys.

[0006] The water supply pipe assembly is fixed near the top of the inner wall of the tunnel, with water flowing inside, and multiple water outlets with fixed combination joints at the bottom.

[0007] The trolley includes a block-shaped trolley body, a sliding travel assembly, a lifting joint assembly, a delivery pipe connecting the insertion joint and the distribution assembly, and a distribution assembly for distributing water flow.

[0008] The lifting joint assembly includes an insertion joint and a joint lifting assembly for assisting the quick-connection of the insertion joint and the combination joint;

[0009] At least two pulleys are equipped with side water outlet pipes and a coiled belt, and at least one of the other pulleys is equipped with a water spray gun;

[0010] The side water outlet pipes are two rigid, flat square pipes installed at an angle, with their openings facing diagonally upwards, located on both sides of the sliding vehicle body respectively;

[0011] The end of the coiled strip is fixed to the side water outlet pipe, including a rigid coiled body that is a metal coil spring and a combined sheet; the combined sheet is a rubber strip-shaped soft plate with multiple water spray holes, and its edge is fixed to the edge of the rigid coiled body.

[0012] Furthermore, the sliding car body is a rigid block that serves as a load-bearing component, and has a receiving cavity at the top, which is a hollow cavity with an opening at the top.

[0013] The sliding travel assembly is fixed to the top of the sliding vehicle body and is used to drive the sliding vehicle body to move along the guide track;

[0014] The multiple pulleys are designated as the first pulley, the second pulley, and the third pulley;

[0015] The first and third pulleys have the same structure;

[0016] The delivery pipe on the second trolley is a spring hose, and the spring hose structure of the delivery pipe allows the second trolley to operate away from the assembly joint.

[0017] Preferably, all trolleys have the same structure, and are equipped with a side water outlet pipe, a coiled belt and a water spray gun.

[0018] Preferably, a fixing magnet is fixed on the side wall of the coiled tape;

[0019] The fixed magnetic block is a permanent magnet or an electromagnet. The side water outlet pipe is fixed with a permanent magnet or an electromagnet. When moving, the fixed magnetic block is attracted and fixed on the side water outlet pipe.

[0020] Preferably, the end of the sliding vehicle body is provided with an adsorption magnet;

[0021] The adsorption magnets are electromagnets, and there are two of them, which are fixed at both ends of the sliding vehicle body.

[0022] If one of the pulleys is damaged and cannot move during the journey, the two pulleys can be attracted and fixed together by magnetic attraction to move together.

[0023] Preferably, the first, second, and third trolleys have the same structure, each equipped with a side water outlet pipe, a coiled belt, and a water spray gun; the delivery pipes of all three are spring hoses; when the fire is large, the first, second, and third trolleys are placed close together and used in combination to spray water onto the fire point at the same time.

[0024] Preferably, a tail spray gun is fixed to the end of the water outlet pipe on the far side of the coiled belt, and the tail spray gun is used to spray water jets;

[0025] The coiled tape body is also fixed with a partition plate, which is a rubber strip-shaped soft plate located between the rigid roll body and the combined sheet. Its edge is fixed to the edge of the rigid roll body, dividing the space inside the coiled tape body into two, and both spaces are connected to the distribution component.

[0026] Water in one space is supplied to the tail nozzle, while water in the other space is sprayed out from the nozzle.

[0027] During firefighting, a tail-mounted spray gun sprays water from the side to assist in extinguishing the fire.

[0028] Preferably, the partition plate is fixed with guide rods that correspond one-to-one with the water spray holes. The guide rods are rigid rods or rubber rods and are irregularly shaped straight rods with different diameters at different positions.

[0029] In use, by controlling the amount of water into the two spaces and the difference in water volume, the relative position of the guide rod and the spray nozzle can be changed, thereby spraying water in different forms for different purposes.

[0030] Preferably, two water guide plates are fixed on the partition plate. The water guide plates are strip-shaped sheets made of rubber, with their width direction perpendicular to the partition plate. The two water guide plates are parallel to each other and located in the space formed by the partition plate and the combined plate, so as to avoid the partition plate and the combined plate being tightly attached together and forming a water flow channel.

[0031] Preferably, the sliding body is provided with side joints at both ends;

[0032] It also includes maintenance connection blocks;

[0033] The side connector is connected to the distribution assembly, which includes a water pump;

[0034] The maintenance connection block is a rigid block with a built-in horizontally arranged channel. The channel contains a flow meter, and the two openings of the channel are equipped with insertion pipe joints.

[0035] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0036] By utilizing a water pipe fixed to the inner wall of the tunnel to deliver firefighting water, and employing multiple trolleys that can slide along the water pipe to participate in firefighting; quick-connect couplings are installed on the water pipe and trolleys to ensure stable and efficient water supply to the trolleys; some or all of the trolleys are equipped with spring-loaded pipes that expand and spray water in a timely manner to form a water curtain for smoke and heat insulation and to prevent the spread of fire; this effectively solves the technical problems of existing highway tunnel fire extinguishing systems, such as high cost, complex structure, need for construction during tunnel construction, difficulty in deployment and maintenance, poor flexibility of use, and poor fire prevention and heat and smoke insulation effects. Thus, the portable water spray fire extinguishing system for highway tunnels achieves the technical effects of low cost, simple structure, deployment after tunnel construction, low deployment cost, convenient modification, flexible mobility, and effective fire prevention and heat and smoke insulation. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the overall structure of the portable water spray fire extinguishing system for highway tunnels in this application.

[0038] Figure 2 This is a schematic diagram showing the positional relationship between the water supply pipe assembly and the first trolley;

[0039] Figure 3 This is a structural schematic diagram of the sliding car body and its accessories;

[0040] Figure 4 This is a schematic diagram of the sliding car body.

[0041] Figure 5 This is a structural schematic diagram of the lifting joint assembly;

[0042] Figure 6 This is a schematic diagram showing the positional relationship between the lifting joint assembly and the water supply pipe assembly;

[0043] Figure 7 Here is a simplified structural diagram of the lifting joint assembly;

[0044] Figure 8 This is a schematic diagram showing the layout of the water supply pipe assembly in the tunnel.

[0045] Figure 9 This is a schematic diagram showing the positional relationship between the first, second, and third pulleys.

[0046] Figure 10 Here is a simplified structural diagram of the first pulley;

[0047] Figure 11 A simplified structural diagram of the coiled ribbon;

[0048] Figure 12 This is a schematic diagram of the stretched state of the coiled ribbon;

[0049] Figure 13 This is a schematic diagram showing the positional relationship of the water spray holes on the assembly plate;

[0050] Figure 14 A schematic diagram showing the connection relationships between the allocation components and their respective parts;

[0051] Figure 15 This is a schematic diagram showing the positional relationship between the coiled tape and the adsorbing magnet.

[0052] Figure 16 A simplified structural diagram of the maintenance connection block;

[0053] Figure 17 This is a schematic diagram showing the positional relationship between the tail-mounted spray gun and the coiled belt.

[0054] Figure 18 This is a schematic diagram showing the positional relationship between the septum and the coiled tape.

[0055] Figure 19 This is a schematic diagram showing the layout of the water guide plates on the coiled belt.

[0056] In the picture:

[0057] Tunnel 001, Water pipe assembly 100, Support frame 110, Water pipe body 120, Combined joint 121, Tapered pipe 122, Sealing ball 123, Compression spring 124, Positioning frame 125, Embedding groove 126, Traveling track assembly 200, Guide track 210, Fixing frame 220, First trolley 300, Sliding car body 310, Receiving cavity 311, Side insertion groove 312, Sliding traveling assembly 320, Lifting joint assembly 330, Support plate 331, Lifting telescopic rod 332, Insertion joint 333, Insertion pipe 334, Insertion 335, 336, 337, 340, 350, 360, 370, 380, 381, 382, ​​383, 384, 385, 390, 391, 392, 400, 410, 420, 430, 500, 600, 610, 620, 630, 640, 650, 660, 670, 680, 610, 620, 630, 640, 650, 660, 670, 680, 690, 610, 620. Detailed Implementation

[0058] To facilitate understanding of the present invention, a more complete description of this application will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the invention. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to enable a more thorough and complete understanding of the disclosure of the present invention.

[0059] It should be noted that the terms "vertical," "horizontal," "up," "down," "left," "right," and similar expressions used in this article are for illustrative purposes only and do not represent the only possible implementation.

[0060] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0061] Example 1:

[0062] like Figure 1 and Figure 2 As shown, the portable water spray fire extinguishing system for highway tunnels in this application includes a fire alarm, a water supply pipe assembly 100, a travel track assembly 200, multiple trolleys, a power assembly, and a control unit.

[0063] The multiple pulleys are designated as pulley 300 (first pulley), pulley 400 (second pulley), and pulley 500 (third pulley).

[0064] The fire alarms are multiple in number, including smoke detectors, heat sensors, and / or flame detectors, and are fixed on the inner wall of tunnel 001 to monitor whether a fire has occurred in the tunnel and the location of the fire.

[0065] The water supply pipe assembly 100 is fixed at the top or near the top of the inner wall of the tunnel 001 (avoiding the lighting fixtures). The main body is tubular, including a support frame 110 and a water supply pipe body 120.

[0066] The supporting frame 110 is a rigid hook-shaped plate or frame structure, and its top is fixed to the inner wall of tunnel 001. There are multiple such frames, and the distance between them is less than 10 meters.

[0067] The water supply pipe 120 is a rigid pipe or a flexible pipe, fixed on the support frame 110, runs through the entire tunnel 001, and is connected to the water supply device (the water supply device is a water tank with a built-in pump, a road water supply system, etc., which is existing technology). It is preferably composed of multiple sections spliced ​​together. The bottom of the water supply pipe 120 is provided with multiple water outlets at equal or unequal intervals. Each water outlet is fixed with a combination joint 121. The combination joint 121 normally closes the water outlet, and when connected to the lifting joint assembly 330, it opens the water passage.

[0068] The travel track assembly 200 is used to guide the movement of the trolley. The main body is a rigid rod, including a guide track 210 and a fixing frame 220. The guide track 210 is a rigid straight rod that runs through the entire tunnel 001 and is fixed to the bottom of the support frame 110 by the fixing frame 220. The whole is parallel to the ground. The fixing frame 220 is plate-shaped or rod-shaped.

[0069] The trolley is equipped with a video monitoring component (i.e., a camera) for monitoring its own operational status and fire status.

[0070] The first trolley 300 and the third trolley 500 have the same structure and both slide along the guide rail 210 under the control of the control unit.

[0071] The first trolley 300 includes a sliding body 310, a sliding travel component 320, a lifting joint component 330, a conveying pipe 340, a distribution component 350, a side water outlet pipe 360, and a coiled belt body 380.

[0072] like Figure 3 and Figure 4 As shown, the sliding body 310 is a rigid block that serves as a load-bearing structure. It has a receiving cavity 311 at the top, which is a hollow cavity with an open top and functions as a container. The sliding body 310 is preferably a rectangular block. The sliding travel assembly 320 is fixed to the top of the sliding body 310 and is used to drive the sliding body 310 to move along the guide rail 210.

[0073] Furthermore, the sliding travel assembly 320 includes a support frame and two travel wheels. The support frame is a longitudinally arranged rod with its bottom fixed to one side of the top of the sliding vehicle body 310. The travel wheels are rotatably connected to the side wall of the support frame and clamp the guide rail 210 between the two travel wheels. The travel wheels rotate under the coordinated control of the control unit and the power assembly, and when they rotate, they drive the sliding vehicle body 310 to move.

[0074] The lifting joint assembly 330 includes an insertion joint 333 and a joint lifting assembly; the insertion joint 333 is a rigid joint that matches the combined joint 121; the main body of the joint lifting assembly is in the shape of a telescopic rod, which extends and retracts under the coordinated control of the control unit and the power component, thereby driving the insertion joint 333 to insert into or detach from the combined joint 121 in a timely manner, thereby connecting the water passage in a timely manner.

[0075] Furthermore, both the combination connector 121 and the insertion connector 333 are quick-connect connectors, namely a quick-connect female connector and a quick-connect male connector, which are matched with each other. Under normal conditions, the sealing structure of the combination connector 121 will effectively prevent water from entering the connector. After the insertion connector 333 is inserted into the combination connector 121, the sealing structure will automatically open to allow water to flow.

[0076] The delivery pipe 340 is a flexible tube that serves as a channel, with one end connected to the insertion connector 333 and the other end connected to the distribution component 350.

[0077] The distribution component 350 is an electric distribution valve or a combination of a water pump and an electric distribution valve, fixed on the sliding body 310, and used to distribute water from the delivery pipe 340 under the control of the control unit.

[0078] For ease of description, the side wall of the sliding car body 310 located in its own direction of travel is defined as the end, and the side wall parallel to its own length direction is defined as the side.

[0079] The side water outlet pipe 360 ​​is a rigid, flat square pipe with an inclined arrangement. There are two of them, with the opening facing diagonally upward. They are symmetrically arranged and located on both sides of the sliding car body 310.

[0080] The coiled strip 380 is a flat tube, which is spiral-shaped (like a mosquito coil) in normal state. The end near the outer ring is fixed to the side water outlet pipe 360 ​​and the internal space is connected to the side water outlet pipe 360.

[0081] like Figures 1 to 14 As shown, the coiled belt 380 includes a rigid coil 381 and a combined sheet 382. The rigid coil 381 is a metal coil spring. The combined sheet 382 is a rubber strip-shaped flexible plate with its edge fixed to the edge of the rigid coil 381, forming a strip-shaped space together with the rigid coil 381. This space is connected to the distribution component 350 through a side water outlet pipe 360. The combined sheet 382 is provided with one or more rows of water spray holes 383, which are through holes for spraying. After water is filled into the space inside the coiled belt 380, it gradually overcomes the elasticity and stretches under the action of water pressure, causing the water spray holes 383 to face downwards. The water inside the coiled belt 380 is sprayed out from the water spray holes 383 to form a water curtain.

[0082] The second trolley 400 is structurally similar to the first trolley 300, except that it does not have a side water outlet pipe 360 ​​and a coiled belt body 380. Instead, it has a water spray gun 410 and a spray gun support frame 420 for supporting and positioning the water spray gun 410 at the bottom. The spray gun support frame 420 is turntable-shaped and rotatably connected to the bottom of the trolley body 310. It rotates under the coordinated control of the control unit and the power component. The water spray gun 410 is positioned on the spray gun support frame 420 and communicates with the distribution component 350. It is used to spray a water jet toward the ignition point. This is existing technology and will not be described in detail here.

[0083] The power unit is used to provide power for the operation of each component of the portable water spray fire extinguishing system for highway tunnels in this application, and the control unit plays the role of controlling the coordinated operation of each component of the portable water spray fire extinguishing system for highway tunnels. Both of these are existing technologies and will not be described in detail here.

[0084] Preferably, the control unit is a combination of a programmable logic controller and control buttons.

[0085] Furthermore, such as Figure 5 and Figure 6 As shown, the combined connector 121 includes a tapered tube 122, a sealing ball 123, a pressure spring 124, and a positioning frame 125. The tapered tube 122 is a rigid tapered tube that is smaller at the top and larger at the bottom, and its bottom is fixed to the water outlet on the water supply pipe 120. The sealing ball 123 is spherical and is normally placed on the top of the tapered tube 122 to seal its top opening. The positioning frame 125 is a plate-shaped or rod-shaped frame that is fixed on the tapered tube 122 and is used to support and fix the pressure spring 124. The pressure spring 124 is a metal spring that is arranged longitudinally and fixed at the top. On the positioning frame 125, the bottom abuts against the sealing ball 123 and is always in a compressed state; the inner wall of the tapered tube 122 is provided with one or more embedding grooves 126, which match the insertion pin 335; the connector support assembly includes a support plate 331 and a lifting telescopic rod 332; the support plate 331 is a horizontally arranged rigid plate used to support and fix the insertion connector 333; an iron plate is fixed at part or all of the bottom of the support plate 331; the lifting telescopic rod 332 is an electric telescopic rod, arranged longitudinally, and its bottom is fixed in the receiving cavity 31. Inside, an electromagnet is installed at the top of the lifting telescopic rod 332, which is attracted to the iron plate at the bottom of the support plate 331. When the lifting telescopic rod 332 extends, it lifts the support plate 331; when it retracts, it pulls the support plate 331 into the receiving cavity 311. The insertion connector 333 includes an insertion tube 334, an insertion pin 335, and a lifting rod body 336. The insertion tube 334 is a cylindrical rigid conical tube that is smaller at the top and larger at the bottom, with an annular sealing gasket 337 fixed at the top, and can be inserted into the conical tube 122. The insertion pin 335 is an electrically or magnetically controlled pin. The sub-body is fixed to the side wall of the insertion tube 334. When extended, it is inserted into the embedding groove 126 to fix the tapered tube 122 and the insertion tube 334 together. The lifting rod body 336 is a longitudinally arranged electric telescopic rod. Its bottom is fixed on the support plate 331 and located in the internal space of the insertion tube 334. When extended, it lifts the sealing ball 123 to open the water passage. The sliding car body 310 is provided with a side insertion groove 312 for guiding the support plate 331 to move so as to combine with the lifting telescopic rod 332. The side insertion groove 312 is a horizontally arranged straight groove with its opening facing one side.

[0086] Furthermore, the delivery pipe 340 on the second trolley 400 is a spring hose. The spring hose structure of the delivery pipe 340 allows the second trolley 400 to operate away from the combination joint 121. When it is necessary to remove the insertion joint 333 on the second trolley 400, the second trolley 400 is controlled to move closer to the combination joint 121 to which it is connected, and then the support plate 331 slides into the receiving cavity 311 through the side insertion groove 312.

[0087] Furthermore, the sealing ball 123 is made of rubber or the top of the tapered tube 122 is fixed with a rubber ring.

[0088] When deploying the portable water spray fire extinguishing system for highway tunnels according to the embodiments of this application, it is only necessary to fix the support frame 110 to the inner wall of the tunnel 001, then fix the water supply pipe 120 to the support frame 110, and install the pulley on the guide rail 210.

[0089] like Figures 7 to 10 As shown, during use, if a fire occurs in the tunnel, the first trolley 300, the second trolley 400, and the third trolley 500 are controlled to slide and approach the target. The first trolley 300 and the third trolley 500 move to both sides of the fire point and connect with the combination joint 121 that is close to them. They unwind and curl the belt 380 and spray water downwards to form a water curtain, which insulates against heat and smoke and prevents the fire from spreading. The second trolley 400 is controlled to connect to the combination joint 121 and approach the fire point to spray water to extinguish the fire (the water sprayed is water mist or water column).

[0090] Preferably, the second trolley 400 is also provided with a side water outlet pipe 360 ​​and a coiled belt body 380.

[0091] Preferably, all trolleys have the same structure, and are equipped with a side water outlet pipe 360, a coiled belt body 380 and a water spray gun 410.

[0092] Preferred, such as Figure 15 As shown, in order to prevent the coiled belt 380 from shaking and affecting the passage speed when the trolley is moving, a fixed magnetic block 384 is fixed on the side wall of the coiled belt 380; the fixed magnetic block 384 is a permanent magnet or an electromagnet, and a permanent magnet or electromagnet is fixed on the side water outlet pipe 360. When moving, the fixed magnetic block 384 is attracted and fixed on the side water outlet pipe 360.

[0093] The technical solutions described in the embodiments of this application have at least the following technical effects or advantages:

[0094] This invention solves the technical problems of existing highway tunnel fire extinguishing systems, such as high cost, complex structure, need for construction during tunnel construction, difficulty in deployment and maintenance, poor flexibility of use, and poor fire prevention and heat and smoke insulation effects. It achieves the technical effects of a mobile water spray fire extinguishing system for highway tunnels, which is low cost, simple structure, can be deployed after tunnel construction, has low deployment cost, is easy to modify, is flexible to move, and can effectively prevent the spread of fire and effectively insulate against heat and smoke.

[0095] Example 2:

[0096] To further improve the practicality and safety of this application and ensure that even if the trolley malfunctions, it will not seriously hinder the normal movement of other trolleys, this application embodiment adds an adsorption magnet 370 to the end of the trolley body 310 based on the above embodiment.

[0097] The adsorption magnets 370 are electromagnets, and there are two of them, which are fixed at both ends of the sliding body 310.

[0098] If one of the pulleys is damaged and cannot move during the journey, the two pulleys can be attracted and fixed together by the magnetic magnet 370 and moved together.

[0099] Example 3:

[0100] To ensure effective firefighting, the first trolley 300, the second trolley 400, and the third trolley 500 have the same structure, each equipped with a side water outlet pipe 360, a coiled belt body 380, and a water spray gun 410; the delivery pipes 340 of all three are spring hoses; when the fire is large, the first trolley 300, the second trolley 400, and the third trolley 500 are placed close together and used in combination to spray water on the fire point at the same time.

[0101] Preferably, the number of pulleys is four or more.

[0102] Example 4:

[0103] The end of the water outlet pipe 360 ​​on the far side of the coiled belt 380 is fixed with a tail spray gun 385, which is used to spray water jets.

[0104] like Figures 17 to 19As shown, a partition plate 390 is also fixed inside the coiled tape body 380. The partition plate 390 is a rubber strip-shaped flexible plate located between the rigid roll body 381 and the combined plate 382. Its edge is fixed to the edge of the rigid roll body 381, dividing the internal space of the coiled tape body 380 into two. Both spaces are connected to the distribution component 350. Water in one space is transported to the tail spray gun 385, and water in the other space is sprayed out from the spray hole 383. In use, the spray angle of the tail spray gun 385 can be controlled to a certain extent by controlling the amount of water supplied to the two spaces and the difference in water volume. When extinguishing a fire, the tail spray gun 385 sprays a water jet from the side to participate in the fire extinguishing.

[0105] Preferably, the partition plate 390 is fixed with a guide rod 391 corresponding to the water spray hole 383. The guide rod 391 is a rigid rod or a rubber rod, and is an irregularly shaped straight rod. The cross-section is preferably spindle-shaped, funnel-shaped, etc., and the diameter is different at different positions. In use, by controlling the amount of water into the two spaces and the difference in water volume, the relative position of the guide rod 391 and the water spray hole 383 can be changed, thereby spraying water in different forms (columnar, water curtain, or mist) for different purposes (for example, mist water has a better dust-proof effect, columnar water has a better fire-extinguishing effect, and if the trolley is located far away from the fire point for dust-proofing, the water spray hole 383 is controlled to spray mist water).

[0106] Preferably, in order to balance the water pressure inside the coiled strip 380 and prevent most of the water inside from concentrating near the side outlet pipe 360, making it difficult to control the shape of the sprayed water, two water guide plates 392 are fixed on the partition plate 390. The water guide plates 392 are rubber strips with their width direction perpendicular to the partition plate 390. The two water guide plates 392 are parallel to each other and located in the space formed by the partition plate 390 and the combined plate 382, ​​so as to prevent the partition plate 390 and the combined plate 382 from sticking together and forming a water flow channel.

[0107] Example 5:

[0108] like Figure 16 As shown, in order to further facilitate maintenance, this embodiment adds side joints 430 at both ends of the sliding car body 310 and maintenance connection blocks 600 for auxiliary maintenance, based on the above embodiment.

[0109] The side connector 430 is connected to the distribution assembly 350, which includes a water pump;

[0110] The maintenance connection block 600 is a rigid block with a horizontally arranged channel inside. The channel has a flow meter 610 inside and two openings of the channel are equipped with insertion pipe joints 620.

[0111] Both the side connector 430 and the insertion pipe connector 620 are quick-connect connectors, which are compatible with each other and, when combined, will open the water passage.

[0112] Under normal circumstances, if a leak occurs in the water supply pipe, it can be detected by manual inspection by driving a vehicle on the ground.

[0113] When it is necessary to check whether the combination joint 121 and insertion joint 333 on the water supply pipe 120 are normal, two trolleys are used for inspection. At least one of the trolleys has a spring hose 340 for delivery. Before maintenance, the maintenance connection block 600 is fixed on one of the trolleys and positioned between the two trolleys. During maintenance, the two trolleys are connected to the two adjacent combination joints 121, and then the two trolleys are brought closer to each other and combined together through the maintenance connection block 600. The distribution component 350 of one of the trolleys is operated to make the water flow in the maintenance connection block 600. The data recorded by the flow meter 610 is used to determine whether the joint is normal.

[0114] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A portable water mist fire extinguishing system for highway tunnels, comprising a fire alarm, characterized in that: It also includes a water supply pipe assembly, a travel track assembly fixed to the bottom of the water supply pipe assembly and used to guide the movement of the trolleys, and multiple trolleys; The water supply pipe assembly is fixed near the top of the inner wall of the tunnel, with water flowing inside, and multiple water outlets with fixed combination joints at the bottom. The trolley includes a block-shaped trolley body, a sliding travel assembly, a lifting joint assembly, a delivery pipe connecting the insertion joint and the distribution assembly, and a distribution assembly for distributing water flow. The lifting joint assembly includes an insertion joint and a joint lifting assembly for assisting the quick-connection of the insertion joint and the combination joint; At least two pulleys are equipped with side water outlet pipes and a coiled belt, and at least one of the other pulleys is equipped with a water spray gun; The side water outlet pipes are two rigid, flat square pipes installed at an angle, with their openings facing diagonally upwards, located on both sides of the sliding vehicle body respectively; The end of the coiled strip is fixed to the side water outlet pipe, including a rigid coiled body that is a metal coiled spring and a combined sheet; the combined sheet is a rubber strip-shaped soft plate with multiple water spray holes, and its edge is fixed to the edge of the rigid coiled body. The end of the water outlet pipe on the far side of the coiled belt is fixed with a tail spray gun, which is used to spray a water jet. The coiled tape body is also fixed with a partition plate, which is a rubber strip-shaped soft plate located between the rigid roll body and the combined sheet. Its edge is fixed to the edge of the rigid roll body, dividing the space inside the coiled tape body into two, and both spaces are connected to the distribution component. Water in one space is supplied to the tail nozzle, while water in the other space is sprayed out from the nozzle. During firefighting, a tail-mounted spray gun sprays water from the side to assist in extinguishing the fire.

2. The portable water spray fire extinguishing system for highway tunnels as described in claim 1, characterized in that: The sliding car body is a rigid block that serves as a load-bearing component. It has a receiving cavity at the top, which is a hollow cavity with an opening at the top. The sliding travel assembly is fixed to the top of the sliding vehicle body and is used to drive the sliding vehicle body to move along the guide track; The multiple pulleys are designated as the first pulley, the second pulley, and the third pulley; The first and third pulleys have the same structure; The delivery pipe on the second trolley is a spring hose, and the spring hose structure of the delivery pipe allows the second trolley to operate away from the assembly joint.

3. The portable water spray fire extinguishing system for highway tunnels as described in claim 1, characterized in that: All the pulleys have the same structure, and are equipped with a side water outlet pipe, a coiled belt and a water spray gun.

4. The portable water spray fire extinguishing system for highway tunnels as described in claim 1, characterized in that: A fixing magnetic block is fixed on the side wall of the coiled tape; The fixed magnetic block is a permanent magnet or an electromagnet. The side water outlet pipe is fixed with a permanent magnet or an electromagnet. When moving, the fixed magnetic block is attracted and fixed on the side water outlet pipe.

5. The portable water spray fire extinguishing system for highway tunnels as described in claim 1, characterized in that: The end of the sliding vehicle body is equipped with an adsorption magnet; The adsorption magnets are electromagnets, and there are two of them, which are fixed at both ends of the sliding vehicle body. If one of the pulleys is damaged and cannot move during the journey, the two pulleys can be attracted and fixed together by magnetic attraction to move together.

6. The portable water spray fire extinguishing system for highway tunnels as described in claim 2, characterized in that: The first, second, and third pulleys have the same structure, each equipped with a side water outlet pipe, a coiled belt, and a water spray gun; the delivery pipes of all three are spring hoses; when the fire is large, the first, second, and third pulleys are placed close together and used in combination to spray water on the fire point at the same time.

7. The portable water spray fire extinguishing system for highway tunnels as described in claim 1, characterized in that: The partition plate is fixed with guide rods that correspond one-to-one with the water spray holes. The guide rods are rigid rods or rubber rods and are irregular straight rods with different diameters at different positions. In use, by controlling the amount of water into the two spaces and the difference in water volume, the relative position of the guide rod and the spray nozzle can be changed, thereby spraying water in different forms for different purposes.

8. The portable water spray fire extinguishing system for highway tunnels as described in claim 7, characterized in that: Two water guide plates are fixed on the partition plate. The water guide plates are strip-shaped pieces of rubber material, with their width direction perpendicular to the partition plate. The two water guide plates are parallel to each other and located in the space formed by the partition plate and the combined plate, so as to avoid the partition plate and the combined plate being tightly attached together and forming a water flow channel.

9. The portable water spray fire extinguishing system for highway tunnels as described in claim 2, characterized in that: The sliding car body is provided with side joints at both ends; It also includes maintenance connection blocks; The side connector is connected to the distribution assembly, which includes a water pump; The maintenance connection block is a rigid block with a built-in horizontally arranged channel. The channel contains a flow meter, and the two openings of the channel are equipped with insertion pipe joints. Both the side connector and the insertion pipe connector are quick-connect connectors, which are compatible with each other and, when combined, will open the water passage.

Images