Portable fire hydrant hose unit and fire hydrant system equipped with the portable fire hydrant hose unit

Abstract

The present invention provides a portable fire hydrant hose unit that allows for easy removal of the fire hose of a fire hydrant system installed in a tunnel to the outside of the tunnel for hose inspection, and a fire hydrant system equipped with the portable fire hydrant hose unit. [Solution] The portable fire hydrant hose unit 5 according to the present invention is detachably connected to the secondary side of a fire hydrant valve of a fire hydrant system installed in a tunnel or the like, and comprises a fire hose 11 that receives water from the fire hydrant valve and discharges water, a hose storage box 13 for storing the fire hose 11, and a connecting joint 17 provided on the side wall of the hose storage box 13 to which the base end of the fire hose 11 is connected, wherein the connecting joint 17 is detachably connected to a hose connection port 9 provided on the side wall of a housing 7 in which the fire hydrant valve is stored.

Description

Technical Field

[0001] The present invention relates to a portable fire hose unit for a fire hydrant for carrying out a fire hose installed in a tunnel outside the tunnel for hose inspection and a fire hydrant apparatus provided with the portable fire hose unit.

Background Art

[0002] In tunnels such as motorways, fire hydrant apparatuses as disclosed in, for example, Patent Document 1 are installed as emergency equipment. The fire hydrant apparatus is regularly inspected, and at that time, hose inspection for checking the presence of damage or holes in the fire hose housed inside the housing of the fire hydrant apparatus is also carried out.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Conventional hose inspection has been carried out by pulling out the fire hose from the housing of the fire hydrant apparatus and performing a water flow test or visual inspection with the hose extended. The conventional method of performing hose inspection in a tunnel requires a significant amount of labor and a large amount of space, and in some cases, lane regulation in the tunnel is also required.

[0005] Inspections involving lane regulation are costly and take a long time for inspection. In particular, in the case of an in-rolled type fire hydrant apparatus, etc., after pulling out the fire hose for inspection, it takes time to drain the water inside the hose and store it in the housing, so the time for lane regulation is also long. Furthermore, hose inspections sometimes had to be carried out on roads with lane closures, which presented a dangerous work environment.

[0006] If the fire hose is removed from the valve and taken outside the tunnel, inspection work can be performed in a safe location. However, the fire hose, when stored coiled inward, is long enough to occupy one-third of the housing 7 of the conventional fire hydrant device 33 (the area shown by the dashed line in Figure 3) (for example, 30m), making it difficult to transport the fire hose alone. There is also the problem that the work of pulling the fire hose out of the housing before inspection and the work of storing the fire hose back into the housing after inspection are time-consuming.

[0007] The present invention was made to solve the above-mentioned problems, and aims to provide a portable fire hydrant hose unit that allows the fire hose of a fire hydrant system installed in a tunnel to be easily transported outside the tunnel for hose inspection, and a fire hydrant system equipped with the portable fire hydrant hose unit. [Means for solving the problem]

[0008] (1) The portable fire hydrant hose unit according to the present invention is detachably connected to the secondary side of a fire hydrant valve of a fire hydrant system installed in a tunnel or the like, The system comprises a fire extinguishing hose that receives water from the fire hydrant valve and discharges it, a hose storage box for storing the fire extinguishing hose, and a connecting joint provided on the side wall of the hose storage box to which the base end of the fire extinguishing hose is connected. The connecting joint is characterized by being detachable from a hose connection port provided on the side wall of the housing in which the fire hydrant valve is housed.

[0009] (2) The above-mentioned (1) is further characterized in that it comprises casters provided at the bottom of the hose storage box to support the hose storage box so that it can move, and anchor bolts provided at the bottom and / or side walls of the hose storage box to be inserted into anchor holes provided in advance in the floor and / or wall of the installation site to fix the hose storage box in a predetermined position.

[0010] (3) The above-mentioned (1) or (2) is further characterized in that it is provided in the hose storage box and includes a hose reel on which the fire extinguishing hose is wound.

[0011] (4) Furthermore, the fire hydrant system according to the present invention is a fire hydrant system equipped with a portable fire hydrant hose unit as described in any of (1) to (3) above, The portable fire hydrant hose unit comprises a housing for housing the fire hydrant valve, which is provided separately from the hose storage box of the portable fire hydrant hose unit, and a hose connection port provided on the side wall of the housing to which the secondary side piping of the fire hydrant valve is connected. During installation, the portable fire hydrant hose unit is positioned adjacent to the housing and the connecting fitting is connected to the hose connection port. A key feature of this system is that, when inspecting the fire extinguishing hose, the connecting joint can be detached from the hose connection port, allowing the portable fire hydrant hose unit to be moved independently. [Effects of the Invention]

[0012] The portable fire hydrant hose unit of the present invention comprises a fire hose, a hose storage box for storing the fire hose, and a connecting joint provided on the side wall of the hose storage box, thereby enabling easy attachment and detachment of the fire hose to the secondary side of the fire hydrant valve and easy transport of the fire hose. This allows for the pre-inspected portable fire hydrant hose unit to be brought into the tunnel, replaced with an existing portable fire hydrant hose unit, and then transported outside the tunnel for inspection of the fire hose in a safe location. Therefore, compared to the conventional method of inspecting hoses inside the tunnel, it eliminates the need for prolonged lane closures, shortens the working time inside the tunnel, and allows inspection work to be carried out safely. [Brief explanation of the drawing]

[0013] [Figure 1] It is an explanatory drawing of a fire hydrant device provided with a hose unit for a portable fire hydrant according to an embodiment of the present invention. [Figure 2] It is an explanatory drawing of another aspect of the hose unit for a portable fire hydrant in FIG. 1. [Figure 3] It is a diagram showing an area where a fire hose is stored in a conventional fire hydrant device.

Embodiment for Carrying out the Invention

[0014] The fire hydrant device 1 according to an embodiment of the present invention is assumed to be installed in a tunnel such as a motor vehicle road. As shown in FIG. 1, it includes a main body 3 and a hose unit 5 for a portable fire hydrant that is configured separately from the main body 3. Hereinafter, each component will be described.

[0015] <Main Body> The main body 3 has a housing 7 with an opening formed in the front surface and provided with an opening / closing door capable of opening and closing the opening. The housing 7 is fixed to the side wall of the tunnel or the like, and is installed at a predetermined position such as on the inspection road in the tunnel. Inside the housing 7, there are pipes for supplying fire extinguishing water to the fire hose 11 of the hose unit 5 for a portable fire hydrant described later, a fire hydrant valve provided on the pipe, maintenance valves provided for pressure adjustment of an automatic pressure regulating valve that adjusts the supply pressure of the fire extinguishing water, and other valves and an opening / closing lever for opening and closing the fire hydrant valve. Also, the inside of the housing 7 may be divided and a fire extinguisher or the like may be stored. Note that the fire hydrant valve may be provided outside the fire hydrant, specifically, inside the inspection road or under the tunnel floor slab. Although not shown in FIG. 1, on the front surface of the housing 7, emergency reporting devices such as a red indicator light and a transmitter are provided.

[0016] A hose connection port 9 is provided on the side wall portion of the housing 7, specifically, on the side wall portion facing the hose unit 5 for a portable fire hydrant. The secondary side pipe of the fire hydrant valve stored in the housing 7 is connected to the hose connection port 9.

[0017] <Hose Unit for Portable Fire Hydrant> The hose unit 5 for a portable fire hydrant is configured to be detachably attached to the hose connection port 9 of the main body 3 and can be relocated alone during hose inspection. As shown in FIG. 1, it includes a fire hose 11, a hose storage box 13, a hose reel 15, and a connection joint 17. Note that FIG. 1 shows the state where the hose unit 3 for a portable fire hydrant is separated from the main body 3 of the fire hydrant device 1. During use (installation), the fire hydrant device 1 is installed in the tunnel with the hose unit 5 for a portable fire hydrant connected to the side of the main body 3.

[0018] 《Fire Hose》 The fire hose 11 receives water supply from a fire hydrant valve housed in the housing 7 and discharges water. A nozzle 19 is provided at the tip. Normally, the fire hose 11 is stored in the hose storage box 13 in a state of being wound around the hose reel 15. During water discharge, as shown in the figure, the fire hose 11 is pulled out from the hose storage box 13 to discharge water. The fire hose 11 is a shape-retaining hose and is not crushed by external forces, so it is possible to discharge water even when a part of it is wound around the hose reel 15.

[0019] 《Hose Storage Box》 The hose storage box 13 is a box body formed separately from the housing 7 and stores the fire hose 11 inside. An opening 13a is provided on the front surface of the hose storage box 13, and the fire hose 11 can be pulled out through this opening 13a. Note that an opening / closing door may be provided at the opening 13a so that the fire hose 11 can be pulled out after opening the opening / closing door. The material of the hose storage box 13 is not particularly limited. For example, making it of resin makes it lightweight and facilitates the transportation of the hose unit 5 for a portable fire hydrant, so it is preferable.

[0020] 《Hose Reel》 The hose reel 15 is installed in the hose storage box 13 and is used to wind the fire extinguishing hose 11. It has a rotating drum 21 installed inside the hose storage box 13 and a handle 23 for rotating the rotating drum 21. The base end of the handle 23 passes through the side wall of the hose storage box 13, specifically the side wall opposite to the side wall where the connecting joint 17 is provided, and is connected to the rotating shaft of the rotating drum 21. By gripping and rotating the handle 23, the rotating drum 21 can be rotated, thereby allowing the fire extinguishing hose 11 to be wound onto the rotating drum 21.

[0021] The rotating drum 21 is provided with a water passage, one end of which is connected to a connecting joint 17, and the other end of which is connected to the base end of the fire extinguishing hose 11. In other words, the base end of the fire extinguishing hose 11 is connected to the connecting joint 17 via the water passage of the rotating drum 21.

[0022] 《Connecting fittings》 The connecting joint 17 is provided on the side wall of the hose storage box 13, specifically on the side wall facing the main body 3, and is connected to the base end of the fire extinguishing hose 11 via the water passage of the rotating drum 21, as described above. The connecting joint 17 is located opposite the hose connection port 9 of the housing 7 when the housing 7 and the hose storage box 13 are placed adjacent to each other, and is configured to be detachable from the hose connection port 9. The method for making the connecting joint 17 and the hose connection port 9 detachable is not particularly limited, but it is preferable to use, for example, a Machino fitting or a fire-fighting screw to construct them.

[0023] It should be noted that in this invention, it is not essential to provide a hose reel 15 in the hose storage box 13, and the fire extinguishing hose 11 may be stored in the hose storage box 13 in other ways. If a hose reel 15 is not provided, the base end of the fire extinguishing hose 11 may be directly connected to the connecting fitting 17. In this case, the fire extinguishing hose 11 is stored in the hose storage box 13 with the hose reel wound inside.

[0024] As described above, the portable fire hydrant hose unit 5 allows for easy attachment and detachment of the hose storage box 13 from the housing 7 of the main body 3, and the fire hose 11 can be transported with the hose storage box 13 stored inside, thus allowing for easy transport of the fire hose 11 outside the tunnel. Furthermore, an inspected portable fire hydrant hose unit 5 can be brought into the tunnel and easily replaced with an existing portable fire hydrant hose unit 5.

[0025] As mentioned above, constructing the hose storage box 13 from lightweight resin or similar material makes it easier to transport the portable fire hydrant hose unit 5. To further facilitate transport, casters 25, as shown in Figure 2, may be provided on the bottom of the hose storage box 13.

[0026] Figure 2 is a cross-sectional view of the portable fire hydrant hose unit 5. Note that the handle 23 of the hose reel 15 is not shown. The casters 25 are provided at the bottom of the hose storage box 13 to support the hose storage box 13 so that it can move, and are rotatably attached to the underside of the hose storage box 13. The casters 25 are provided, for example, at the four corners of the underside of the hose storage box 13, allowing the portable fire hydrant hose unit 5 to be moved by rotating the wheels of the casters 25 on the ground surface. By providing casters 25, the portable fire hydrant hose unit 5 can be moved without having to lift it, making it easier to transport the portable fire hydrant hose unit 5. Note that the number of casters 25 is not limited to four; any other number is acceptable as long as they are mounted in a way that allows the hose storage box 13 to be stably supported.

[0027] Furthermore, if casters 25 are provided on the hose storage box 13, it is desirable to provide anchor bolts 27 on the bottom of the hose storage box 13, as shown in Figure 2, so that the hose storage box 13 can be anchored to a predetermined installation location. Figure 2 shows the state in which the hose storage box 13 is anchored in place by inserting anchor bolts 27 into anchor holes 31 that have been pre-installed in the floor 29 of the installation site. In this way, by providing anchor holes 31 at a predetermined installation location and securing the hose storage box 13 with anchor locks, the portable fire hydrant hose unit 5 with casters 25 can be fixed in the predetermined position even if the installation location is on an inclined surface.

[0028] The above is an example of providing anchor bolts 27 at the bottom of the hose storage box 13, but the position of the anchor bolts 27 is not limited to this, and they may also be on the side wall of the hose storage box 13. That is, the anchor bolts 27 may be provided so as to penetrate the side wall (rear side) of the hose storage box 13, so that the anchor bolts 27 are not visible from the outside. In this case, the anchor holes 31 are provided on the wall surface of the installation site, and the hose storage box 13 is fixed by inserting anchor bolts 27 into the anchor holes 31 provided on the wall surface.

[0029] Furthermore, the hose storage box 13 may be anchored in multiple locations rather than just one. That is, multiple anchor holes 31 may be provided in the floor and / or wall of the installation site, and multiple anchor bolts 27 may be provided in the bottom and / or side walls of the hose storage box 13 to correspond to these holes.

[0030] Furthermore, even if casters 25 are not provided on the hose storage box 13 as shown in Figure 1, it is desirable to provide anchor bolts 27 as described above and fix them in place with anchor locks.

[0031] The fire hydrant system 1 configured as described above is typically installed inside a tunnel with the portable fire hydrant hose unit 5 positioned adjacent to the main body 3 and the connecting fitting 17 connected to the hose connection port 9. In the event of a fire in the tunnel, the fire extinguishing hose 11 is pulled out from the opening 13a of the hose storage box 13 of the portable fire hydrant hose unit 5, then the opening and closing door on the front of the housing 7 of the main body 3 is opened, and the opening and closing lever inside the housing is opened, allowing water to be discharged from the nozzle 19 of the fire extinguishing hose 11. After spraying water, the handle 23 of the hose reel 15 is grasped and rotated to wind the fire extinguishing hose 11 onto the rotating drum 21 and store the fire extinguishing hose 11 in the hose storage box 13.

[0032] <Procedure for replacing the hose unit for a portable fire hydrant during hose inspection> In this embodiment, the portable fire hydrant hose unit 5 to be inspected can be easily replaced with an inspected portable fire hydrant hose unit 5, and the portable fire hydrant hose unit 5 to be inspected can be taken outside the tunnel and the hose inspection can be performed in a safe location. The following describes the procedure for replacing the portable fire hydrant hose unit 5.

[0033] (1) First, prepare a portable fire hydrant hose unit 5 equipped with a pre-inspected fire hose 11 (hereinafter referred to as the inspected portable fire hydrant hose unit 5). (2) Bring the inspected portable fire hydrant hose unit 5 to the installation location of the fire hydrant system 1 that is subject to inspection (hereinafter, the portable fire hydrant hose unit 5 of the fire hydrant system 1 that is subject to inspection will be referred to as the pre-inspection portable fire hydrant hose unit 5). (3) In the fire hydrant device 1 to be inspected, the anchor lock is released and the connecting joint 17 of the portable fire hydrant hose unit 5 before inspection is detached from the hose connection port 9 of the main body 3, thereby separating the main body 3 from the portable fire hydrant hose unit 5 before inspection.

[0034] (4) Place the inspected portable fire hydrant hose unit 5 adjacent to the main body 3, connect the connecting joint 17 of the inspected portable fire hydrant hose unit 5 to the hose connection port 9 of the main body 3, and insert the anchor bolt 27 into the anchor hole 31 to complete the replacement of the portable fire hydrant hose unit 5. (5) The portable fire hydrant hose unit 5, which has been separated from the main body 3, is taken outside the tunnel, and the fire hose 11 is inspected at an appropriate location.

[0035] As described above, the fire hydrant device 1 of this embodiment is equipped with a portable fire hydrant hose unit 5, which allows the fire hose 11 to be easily attached to and detached from the secondary side of the fire hydrant valve, and also allows the fire hose 11 to be easily transported. During hose inspections, a pre-inspected portable fire hydrant hose unit 5 can be brought into the tunnel and replaced with an existing portable fire hydrant hose unit 5, and the portable fire hydrant hose unit 5 to be inspected can be brought outside the tunnel for hose inspection. Therefore, compared to the conventional method of inspecting hoses inside the tunnel, this method eliminates the need for prolonged lane closures, shortens the working time inside the tunnel, and allows for safer inspection work. In addition, the fire hydrant system can remain operational even while the hoses are being inspected. [Explanation of Symbols]

[0036] 1. Fire hydrant system 3 Main unit 5. Portable fire hydrant hose unit 7 cabinets 9 Hose connection port 11. Fire hose 13 Hose storage box 13a opening 15 Hose Reels 17. Connecting fittings 19 nozzles 21 RPM drum 23 Handle 25 casters 27 Anchor bolts 29 beds 31 Anchor holes 33. Fire hydrant system (conventional example)

Claims

1. A portable fire hydrant hose unit that is detachably connected to the secondary side of a fire hydrant valve in a fire hydrant system installed in a tunnel or the like, The system comprises a fire extinguishing hose that receives water from the fire hydrant valve and discharges it, a hose storage box for storing the fire extinguishing hose, and a connecting joint provided on the side wall of the hose storage box to which the base end of the fire extinguishing hose is connected. A portable fire hydrant hose unit characterized in that the connecting joint is detachable from a hose connection port provided on the side wall of the housing in which the fire hydrant valve is housed.

2. The portable fire hydrant hose unit according to claim 1, further comprising: casters provided at the lower part of the hose storage box to support the hose storage box so that it can move; and anchor bolts provided at the bottom and / or side walls of the hose storage box to be inserted into anchor holes provided in advance in the floor and / or wall of the installation site to fix the hose storage box in a predetermined position.

3. The portable fire hydrant hose unit according to claim 1 or 2, further comprising a hose reel provided in the hose storage box on which the fire extinguishing hose is wound.

4. A fire hydrant system comprising a portable fire hydrant hose unit according to claim 1 or 2, The portable fire hydrant hose unit comprises a housing for housing the fire hydrant valve, which is provided separately from the hose storage box of the portable fire hydrant hose unit, and a hose connection port provided on the side wall of the housing to which the secondary side piping of the fire hydrant valve is connected. During installation, the portable fire hydrant hose unit is positioned adjacent to the housing and the connecting fitting is connected to the hose connection port. A fire hydrant system characterized in that, when inspecting the fire hose, the connecting joint can be detached from the hose connection port, allowing the portable fire hydrant hose unit to be moved independently.

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