Fire hydrant device

Abstract

To enable work from outside on the interior of a housing of a fire hydrant device installed so as to be exposed on a monitoring person passage or tunnel wall surface to be easily performed, without obstructing passage of the monitoring person passage.SOLUTION: A first housing 11a of a fire hydrant device 10 accommodates valve components including a fire hydrant valve, and a fire hose. A first side surface door 32 is provided on a side surface of the first housing 11a. The first side surface door 32 can open the side surface of the housing upward from bottom to top along a front-rear axis located at an upper end on the tunnel wall surface side of a side surface opening. Thus, without opening a front tilting door 12 on a front surface of the housing, work on the interior of the first housing 11a can be performed from outside of the side surface by opening the first side surface door 32.SELECTED DRAWING: Figure 10

Description

[Technical Field]

[0001] The present invention relates to a fire hydrant device installed in a tunnel and housing a fire hose, a fire extinguisher, etc. [Background technology]

[0002] Conventionally, fire hydrant systems have been installed as emergency tunnel equipment in tunnels such as expressways and expressways. A fire hydrant system consists of a casing with a tilt-forward door (fire hydrant door), a fire hose with a nozzle attached to the end, and valves including a fire hydrant valve, housed in a fire hydrant storage compartment. A fire extinguisher storage compartment with a fire extinguisher door houses, for example, two fire extinguishers. Furthermore, fire hydrant systems are generally installed by embedding boxes into the tunnel wall at intervals of, for example, 50 meters along the length of the tunnel.

[0003] However, in tunnels constructed using methods such as shield tunneling, the structure of the tunnel body makes it difficult to cut out a box in the tunnel wall and install a fire hydrant device by embedding it in place, due to the cost and effort involved, so the fire hydrant must be installed in an exposed position in the guard's passage.

[0004] Furthermore, in order to install the fire hydrant device on the tunnel wall surface without removing the box, a wall-mounted structure has been proposed in which the fire hydrant device is attached and fixed to a stand installed on the tunnel wall surface.In this case, the stand is composed of a main support part fixed to the wall surface and a position-maintaining member that maintains the position of the fire hydrant device (Patent Document 2).

[0005] Furthermore, since wall-mounted fire hydrant devices have issues such as the time and labor required to install them on the tunnel wall, it is being considered to use a so-called stationary structure in which the fire hydrant device is attached and fixed in an exposed state to a stand installed on the road surface of the guard passage, which is easier to install. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-055073 [Patent Document 2] Japanese Patent Application Publication No. 2020-078429 Summary of the Invention [Problem to be solved by the invention]

[0007] When a wall-mounted or freestanding fire hydrant is installed at a predetermined height in the guard's passage using a stand, the following tasks are required on site: attaching and fixing the hydrant's housing to the stand with bolts and nuts, connecting the water supply pipes that run up from the road side of the guard's passage to the valves inside the housing, and pulling in cables from outside and connecting them to the terminal box inside the housing. This on-site work requires the worker to open the tilt-forward door or fire extinguisher door on the front of the housing toward the guard's passage and reach inside the housing through the door opening.

[0008] Therefore, when the tilting door or fire extinguisher door is opened during work on the fire hydrant system, the guard passage is obstructed, causing problems with movement to and from other work. Also, depending on the work inside the enclosure, workers may need to work on the tilting door that is open toward the guard passage, which requires the strength of the tilting door to be increased, which complicates the structure and increases costs.

[0009] The present invention aims to provide a fire hydrant device that allows easy work to be performed from the outside inside the housing of a fire hydrant device that is installed exposed in a guard passage or on a tunnel wall without obstructing passage through the guard passage. [Means for solving the problem]

[0010] (Fire hydrant equipment) The present invention provides a fire hydrant device having a housing installed at a predetermined height above the road surface of a watchman passage provided along the wall surface of a tunnel having a road, in proximity to or in contact with the tunnel wall surface, A side door is provided on the side of the housing, The side door can be opened to allow work inside the housing to be done from the outside of the side.

[0011] (Housing fire hydrant equipment and fire extinguisher) The housing is A first housing containing a fire hydrant device and a second housing containing a fire extinguisher and electrical equipment are connected laterally, a first side door is provided on a side surface of the first housing excluding the connecting side surface, and a second side door is provided on a side surface of the second housing excluding the connecting side surface; The first side door can be opened to allow work on the stand and fire hydrant equipment from the outside of the side, and the second side door can be opened to allow work on the stand, fire extinguisher, and electrical equipment from the outside of the side.

[0012] (Side door opens sideways toward the tunnel wall) The side door is supported so as to be able to open laterally about an axis extending in the vertical direction at the side end of the side opening of the housing on the tunnel wall surface side.

[0013] (Side door opens to the front) The side door is supported so as to be able to open laterally about an axis extending in the vertical direction at the road side end of the side opening of the housing.

[0014] (Side door with upward opening structure) The side door is supported so as to be able to open upward about an axis extending in the front-rear direction at the upper end of the side opening of the housing.

[0015] (holding the side door open) The side door has an open holding portion that holds the side door in an open position.

[0016] (Installation and fixing of the enclosure on a stand above the guard passage) The housing is attached and fixed to the top of a stand installed on the road surface of the guard passageway, close to the tunnel wall.

[0017] (Installation and fixing of the enclosure on a stand on the tunnel wall) The housing is attached and fixed to the front part of the platform, which is on the road side, installed on the tunnel wall above the road surface of the guard passage. [Effects of the Invention]

[0018] (Basic effect) According to the fire hydrant device of the present invention, when the fire hydrant device is installed in an exposed state in the guard passage or on the tunnel wall, the external space opposite the side of the housing is open space, and by providing a side door on the side of the housing, it is possible to open the side door and perform work inside the housing from the outside of the side simply and easily.

[0019] Furthermore, even if the tilt-forward door and fire extinguisher door on the front of the enclosure are closed, work inside the enclosure from the outside can be performed by opening the side door, and opening the tilt-forward door or fire extinguisher door does not obstruct the passage of guards through the passageway.

[0020] In addition, there is no need to work on the open tilt-forward door, so there is no need to make the strength of the tilt-forward door higher than necessary, and there is no need to provide a reinforcing structure for the tilt-forward door, which simplifies the door structure and reduces costs.

[0021] (Effect of the enclosure housing the fire hydrant equipment and fire extinguisher) In addition, the housing is configured so that a first housing containing the fire hydrant equipment and a second housing containing the fire extinguisher and electrical equipment are connected laterally, and is provided with a first side door on the side of the first housing excluding the connecting side, and a second side door on the side of the second housing excluding the connecting side.Therefore, by opening the first side door, it is possible to simply and easily perform work on the fire hydrant equipment, such as connecting water supply piping to valves, through the door opening, and by opening the second side door, it is possible to simply and easily perform work on the fire extinguisher and electrical equipment through the door opening.

[0022] (Effect of the side door opening sideways toward the tunnel wall) In addition, the side door is supported so as to be able to open freely sideways around the vertical axis of the side end of the side opening of the housing on the tunnel wall side, so that opening the side door sideways towards the tunnel wall side opens the side opening of the housing, and it becomes possible to reach inside the housing from the large space on the side of the housing and perform necessary work simply and easily.

[0023] (Effect of the side door opening to the front) In addition, the side door is supported so that it can be freely opened sideways, with the vertical axis of the road-side side end of the side opening of the housing as an axis, and can be opened wide from the side position to a position that hits the front of the housing, which is about 3 / 4 of a turn forward, making it possible to reach inside the housing through the large space on the side of the housing and perform necessary work simply and easily.

[0024] (Effect of the upward opening side door structure) The side door is supported so as to be freely openable upward with the upper end of the side opening of the housing in the front-rear direction as an axis, so that opening the side door upward opens the side opening of the housing, and a user can reach into the housing through the wide space on the side of the housing and perform necessary work simply and easily.

[0025] (Effect of holding the side door open) Furthermore, the side door is held in the open position by the open holding portion, which prevents the open side door from moving and interfering with work.

[0026] (Effect of fixing the enclosure to the stand above the guard passage) Furthermore, the housing has a stationary structure that is attached and fixed to the top of a stand installed on the road surface of the guard passageway, close to the tunnel wall, so that the work inside the housing to attach and fix the housing to the stand installed in the guard passageway using bolts and nuts can be done simply and easily by opening the side door and reaching inside the housing through the large space on the side of the housing.

[0027] (Effect of fixing the enclosure to the stand on the tunnel wall) Furthermore, the housing has a wall-mounted structure that is attached and fixed to the road-side front part of a platform installed on the tunnel wall above the road surface of the monitor's passage, making it possible to simply and easily perform work inside the housing to attach and fix the housing to the platform installed on the tunnel wall using bolts and nuts, just like with a stationary structure, by opening the side door and reaching inside the housing through the large space on the side of the housing. [Brief explanation of the drawings]

[0028] [Figure 1] FIG. 1 is an explanatory diagram showing the installation state of a fire hydrant device in a tunnel. [Figure 2] FIG. 1 is an explanatory diagram showing the installation state of a fire hydrant device in a tunnel cross section. [Figure 3] FIG. 2 is a perspective view showing a stand for mounting and fixing the fire hydrant device. [Figure 4] This is an explanatory diagram showing the internal structure of the fire hydrant device from the front with the forward-tilting door open. [Figure 5] This is an explanatory diagram showing in plan the internal structure of a fire hydrant device equipped with a side door that opens toward the tunnel wall. [Figure 6] FIG. 2 is an explanatory diagram showing the internal structure of the fire hydrant device from the right side. [Figure 7] FIG. 6 is a perspective view showing the first side door of FIG. 5 in an open state. [Figure 8] 1 is an explanatory diagram showing a plan view of the internal structure of a fire hydrant device equipped with a side door that opens to the front side of the housing. FIG. [Figure 9] FIG. 9 is a perspective view showing the first side door of FIG. 8 in an open state. [Figure 10] FIG. 2 is a perspective view showing the housing with a side door that opens upward in an open state. DETAILED DESCRIPTION OF THE INVENTION

[0029] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a fire hydrant device according to the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the following embodiments.

[0030] [Basic concept of the embodiment] First, a basic concept of the embodiment will be described. The embodiment generally relates to a fire hydrant device in which a fire hydrant device, an electrical device, a terminal box, and a fire extinguisher are arranged in a housing.

[0031] Here, a "fire hydrant device" is a type of emergency equipment installed in areas subject to fire extinguishing, such as tunnels on expressways and motorways, and is a housing installed in the area subject to fire extinguishing, in which fire hydrant equipment such as fire hoses, electrical equipment such as red indicator lights and transmitters on electrical doors, terminal boxes, and fire extinguishers are placed or stored, and the concept includes fire hydrant facilities in which fire hydrant devices are installed.

[0032] The fire hydrant device is installed in an exposed state at a predetermined height above the road surface of a guard passageway that is provided along the interior wall of a tunnel that has a road. Here, the "predetermined height" refers to a height that allows the fire hydrant device to be installed in a position close to or in contact with the tunnel wall, and can be installed at the predetermined height by, for example, attaching and fixing a housing to the top of a platform installed on the road surface of the guard passageway, or by attaching and fixing a housing to the front part of a platform installed on the tunnel wall above the road surface of the guard passageway, which faces the road.

[0033] Furthermore, the term "frame" refers to a structure that supports an object using pillars, beams, etc., and although specific examples are not shown, it includes concepts such as a support base, foundation, base, seat, and base.

[0034] The fire hydrant device of this embodiment is characterized by having a side door on the side of the housing, which an operator can open to work inside the housing from the outside of the side. Here, the "side door" refers to a door provided in a side opening on the side of the housing of the fire hydrant device installed in an exposed state at a predetermined height above the road surface of the monitor's passage, and it is optional whether the door is provided on both sides or on one side.

[0035] For example, the housing of a fire hydrant device has a first housing that houses the fire hydrant equipment and a second housing that houses the fire extinguisher, electrical equipment, and terminal box connected laterally, and is provided with a first side door on the side of the first housing excluding the connecting side, and a second side door on the side of the second housing excluding the connecting side, so that by opening the first side door and the second side door, it is possible to attach and fix the housing to the stand from the outside of the side, and also by opening the first side door, it is possible to work on the fire hydrant equipment from the outside of the side, and further by opening the second side door, it is possible to work on the fire extinguisher, electrical equipment, and terminal box from the outside of the side.

[0036] Here, "fire hydrant equipment" refers to specified equipment including fire hoses and valves such as fire hydrant valves, "electrical equipment" refers to specified equipment including red indicator lights, transmitters, answering lights and telephone jacks located on electrical doors, and "terminal boxes" refers to storage boxes equipped with terminal blocks for connecting wiring cables, etc. drawn into the housing from outside the fire hydrant device to the electrical equipment.

[0037] The side door can be opened in any direction, but for example, the side door is supported so that it can be opened sideways, with the vertical axis of the side edge of the side opening of the housing facing the tunnel wall as the axis. In this case, the side door is provided with an open holding part that keeps it in the open position facing the tunnel wall.

[0038] The side door is supported so as to be freely opened sideways around the vertical axis of the road-side end of the side opening of the housing. In this case, the side door is provided with an open holding part that keeps it in an open position all the way to the front side of the housing.

[0039] The side door is supported so as to be freely openable upward around an axis extending in the front-rear direction of the upper end of the side opening of the housing. In this case, the side door is provided with an open holding portion that holds the side door in an open position, either diagonally upward or horizontally.

[0040] Specific embodiments will be described below. In the specific embodiments shown below, a case will be described in which "the fire hydrant device is attached and fixed to a stand installed above the guard passage in the tunnel," the side door provided on the side of the housing closer to the fire hydrant device storage section is the "first side door," and the side door provided on the side of the housing closer to the fire extinguisher storage section is the "second side door."

[0041] [Specific details of the embodiment] The fire hydrant equipment will be explained in more detail below. a. Overview of the fire hydrant equipment b. Installation of fire hydrant equipment c. Installation height and thinness of fire hydrant equipment d. Configuration compatible with thinner fire hydrant devices e. Fire hydrant equipment stand f. Construction of a fire hydrant device with a side door f1. Structure of the first housing f2. Side door of the first enclosure f3. Structure of the second housing f4.Storage of fire extinguishers f5. Side door of the second enclosure g. On-site work performed by opening the side door g1. Mounting and fixing the chassis to the stand g2. Water supply pipe connection work g3. Cable pulling work g4. Inspection and repair work during operation h. Other embodiments of the side door h1. Front-opening side door h2. Top-opening side door i. Modifications of the present invention

[0042] [a. Overview of the fire hydrant equipment] The outline of the fire hydrant equipment will be explained in more detail below. Figure 1 is an explanatory diagram showing the installation of fire hydrant equipment inside a tunnel, with Figure 1(A) showing the installation of the fire hydrant equipment as seen from the cross section of the tunnel, and Figure 1(B) showing the installation of the fire hydrant equipment as seen from the direction of the tunnel wall.

[0043] As shown in FIG. 1(B), the housing of the fire hydrant device 10 of this embodiment is divided into a first housing 11a and a second housing 11b.

[0044] A decorative frame 13a is attached to the front of the first housing 11a. The door opening of the decorative frame 13a is divided into upper and lower halves, with a forward-tilting door 12 that functions as a fire hydrant door and opens downward on hinges 12a being located at the lower side of the door opening, and a maintenance door 14 that opens upward on hinges 14a being located at the upper side of the door opening, and predetermined fire hydrant equipment including fire hoses and valves such as fire hydrant valves being stored in a fire hydrant equipment storage section inside the first housing 11a.

[0045] A first side door 32 that can be opened laterally to the right around the vertical axis of the side end of the side opening on the tunnel wall side is provided on the right side of the first housing 11a.

[0046] A decorative frame 13b is attached to the front of the second housing 11b. The decorative frame 13b has two door openings, with an electrical door 18 that opens laterally to the right on hinge 18a located in the right door opening, and an auxiliary door 20 that opens laterally to the left on hinge 20a located on the left, allowing access to the internal terminal boxes 26a and 26b. The electrical door 18 is provided with electrical equipment such as a red indicator light 22, a transmitter 24, and an answer lamp 25, and a telephone jack is provided inside.

[0047] The red indicator light 22 is always lit, allowing the installation location of the fire hydrant device 10 to be confirmed from a distance. When a fire breaks out and the transmitter 24 is pressed to turn on the push button switch, a transmission signal is sent, which is received by a disaster prevention receiving panel installed in an electrical room or the like and issues a fire alarm. The fire hydrant device 10 receives a response signal from the disaster prevention receiving panel, causing the red indicator light 22 to flash and the response lamp 25 to light up.

[0048] A high-voltage terminal box 26a and a low-voltage terminal box 26b are arranged vertically on the rear surface of the second housing 11b opposite the auxiliary door 20. The high-voltage terminal box 26a uses a built-in terminal block to connect the high-voltage cable drawn from outside the fire hydrant device 10 to the red indicator light 22. The low-voltage terminal box 26b uses a built-in terminal block to connect the low-voltage cable drawn from outside the fire hydrant device 10 to the transmitter 24, the response lamp 25, a telephone jack, etc.

[0049] A fire extinguisher door 16 that opens sideways to the left on hinges 16a is provided in the door opening on the left side of decorative frame 13b, and for example, two fire extinguishers can be stored inside fire extinguisher door 16. A viewing window 17 is provided below fire extinguisher door 16, allowing the presence or absence of a fire extinguisher to be confirmed from the outside.

[0050] Further, a second side door 34 that can be opened laterally to the left around the vertical axis of the side end of the side opening on the tunnel wall side is provided on the left side surface of the second housing 11b.

[0051] [b. Installation of fire hydrant equipment] The installation of fire hydrants in tunnels will be explained in more detail below. A road 46 is constructed in the longitudinal direction (left and right direction) of the tunnel below the cylindrical (circular cross section) tunnel body constructed using the shield tunneling method, and a guard passage 35 is constructed at a predetermined height above the road 46 below the tunnel wall 26 along the rear side of the road 46.

[0052] Since it is difficult to cut out a box from the tunnel wall 26 constructed by the shield construction method to install the fire hydrant device 10, the mount 30 is installed close to the tunnel wall 26 on the road surface of the monitor's passage 35, and the first housing 11a and second housing 11b, which are connected, are attached and fixed to the mount 30, thereby installing the fire hydrant device 10. Here, the height H1 of the mount 30 is set so that the height from the road surface of the monitor's passage 35 to the transmitter 24 installed on the fire hydrant device 10 is within the legally specified range of 800 mm to 1500 mm.

[0053] 1(A), the side shape of the mount 30 of this embodiment is an inverted trapezoid with the top side longer than the bottom side, and the rear side is an inclined surface that slopes diagonally downward along the curved shape of the tunnel wall surface 26. The first housing 11a and second housing 11b connected to the fire hydrant device 10 are attached and fixed to the top end surface of the mount 30.

[0054] [c. Installation height and thinness of fire hydrant equipment] The installation height and thinness of the fire hydrant device will be explained in more detail below. In order to reduce the restriction on the passage width caused by the protrusion (projection) of the fire hydrant device 10, which is installed on the road surface of the guard passage 35 by the mount 30, from the tunnel wall surface 26, the installation height of the fire hydrant device 10 has been optimized, and at the same time, the fire hydrant device 10 has been made as thin as possible.

[0055] First, since the installation height of the fire hydrant device 10 is determined by the mounting base 30, optimization of the height H1 of the mounting base 30 will be described in more detail. Figure 2 shows a schematic diagram of the installation state of the fire hydrant device in a tunnel cross section. The tunnel wall surface 26 on which the fire hydrant device 10 is installed has a circular cross section, and in Figure 2(A), the height H1 of the mounting base 30 is set so that the horizontal housing center line SL2 passing through the center of the height direction of the fire hydrant device 10 installed on the monitor passage 35 is as close as possible to the tunnel center line SL1 in the horizontal direction from the tunnel center (center of the circular cross section) P.

[0056] In this case, the closer the housing center line SL2 is to the tunnel center line SL1, the more the degree to which the fire hydrant device 10 protrudes from the tunnel wall surface 26 can be reduced.

[0057] 2(B) shows a case where the height H1 of the mount 30 is set so that the housing center line SL2 coincides with the tunnel center line SL1. In this case, the degree to which the fire hydrant device 10 protrudes from the tunnel wall surface 26 can be minimized. However, the height H1 of the mount 30 should be adjusted within the possible range, taking into account factors such as the ease of removing the fire extinguisher.

[0058] Next, a more detailed explanation will be given of how the fire hydrant device 10 can be made thinner. Of the devices housed in the fire hydrant device 10, the fire extinguisher housed in the second housing 11b is the device with the largest size in the front-to-rear direction, and the fire hydrant device 10 can be made thinner if the width (thickness in the front-to-rear direction) of the fire hydrant device is the minimum value that allows the fire extinguisher to be housed in the second housing 11b, so the width of the fire hydrant device 10 is set to a predetermined width that corresponds to the outer diameter of the fire extinguisher housed in the second housing 11b.

[0059] The outer diameter of the fire extinguisher is about 150 to 160 mm, and if a gap is secured so that the stored fire extinguisher does not come into contact with the second housing 11b, the minimum width of the fire hydrant device 10 is, for example, within a range of about 180 to 200 mm, and the width of the fire hydrant device 10 is set to a predetermined width within that range. In contrast, the width of a conventional fire hydrant device 10 that is installed by cutting a box out of the wall surface of a tunnel body and embedding it in place is about 300 mm, so the width of the fire hydrant device 10 of this embodiment can be made two-thirds or less of the conventional one, allowing the fire hydrant device 10 to be made thinner.

[0060] [d. Configuration compatible with thinner fire hydrant devices] If the fire hydrant device 10 is thinned to a predetermined width in the range of about 180 to 200 mm corresponding to the outer diameter of the fire extinguisher, it becomes difficult to store a fire hose of a predetermined length, for example, a 30 m shape-retaining hose, in an inwardly coiled state in the first housing 11a, as in conventional fire hydrant devices. Therefore, in this embodiment, by increasing the width (width in the left-right direction) of the first housing 11a, it becomes possible to store a shape-retaining hose of the same predetermined length as in conventional fire hydrant devices in an inwardly coiled state.

[0061] Furthermore, as the fire hydrant device 10 becomes thinner, it becomes difficult to arrange the terminal boxes 26a, 26b on the rear surface of the housing behind the fire extinguisher storage section in which the fire extinguisher is stored, as in the conventional fire hydrant device 10. Therefore, in this embodiment, the width (length in the left-right direction) of the second housing 11b is increased to a width that allows for the storage of the fire extinguisher as well as the arrangement of electrical equipment and the terminal box.

[0062] [e. Fire hydrant equipment stand] The fire hydrant device mount will be described in more detail. Fig. 3 is a perspective view of the mount. The mount 30 is, for example, made by cutting angle irons or the like to a predetermined length and welding them together into a box shape. The angle irons or the like are arranged so that the mount 30 forms an inverted trapezoid in side view with the top side longer than the bottom side. Mounting holes 31, each paired with a front and rear hole, are formed in three locations along the longitudinal direction of the top surface on the upper end surface of the mount 30. The mounting holes 31 are formed at positions corresponding to the mounting holes on the bottoms of the first housing 11a and the second housing 11b of the fire hydrant device 10. The first housing 11a and the second housing 11B are attached and fixed to the mount 30 by aligning the mounting holes and inserting bolts and nuts into them.

[0063] [f. Structure of a fire hydrant device with a side door] The structure of the fire hydrant device with a side door will be described in more detail with reference to FIGS.

[0064] (f1. Structure of the first housing) The structure of the first housing 11a will be described in more detail. Reference is made to Fig. 4, which shows the internal structure of the fire hydrant device from the front with the tilt-forward door (hydrant door) and maintenance door open; Fig. 5, which shows the internal structure of the fire hydrant device in a cross section viewed from above; Fig. 6, which shows a cross section of the hose storage section of the first housing as viewed from the right side; and Fig. 7, which shows the first side door of the first housing open. Of these, Fig. 5 is a cross section indicated by the cutting line aa in Fig. 4, and Fig. 6 is a cross section indicated by the cutting line bb in Fig. 4. The tilt-forward door 12 in Fig. 6 shows the side of the door in Fig. 4.

[0065] The interior of the first housing 11a, which serves as the storage section for the fire hydrant equipment, is divided into a valve storage section 50a and a hose storage section 50b. A water supply pipe 48 is drawn into the valve storage section 50a from below through the stand 30 and connected to a water hydrant 52. The water supply pipe 48 also branches downward, and at the end of the branch, a fire hydrant valve 54 and an automatic pressure regulating valve 56 are provided, followed by a shape-retaining fire hose 60.

[0066] The hydrant valve 54 is opened and closed by a hydrant valve opening / closing lever 58, and when the hydrant valve opening / closing lever 58 is opened or closed, the hydrant valve 54 is remotely opened or closed by a known wire link mechanism. When the hydrant valve opening / closing lever 58 is opened or closed, a pump start interlock switch provided on the operation box turns on or off. In addition, a pump start switch 64 for use by the fire brigade is provided on the upper right of the hydrant 52.

[0067] A hose storage frame 62 is provided in the hose storage section 50b, and the fire hose 60, which is pulled in from below, is stored in a state of being wound inward clockwise or counterclockwise. Here, the hose storage frame 62 has a wider width to accommodate the wider width of the first housing 11a that accompanies the slimming of the fire hydrant device 10, and it is possible to store the fire hose 60 of the same predetermined length as in conventional fire hydrant devices with fewer windings than in conventional fire hydrant devices. In addition, a nozzle 68 is attached to the tip of the fire hose 60 pulled out through the hose guide 66, and the nozzle 68 is detachably held in a nozzle holder 70.

[0068] As shown in FIG. 6, a cable rack 49 is provided above the hose storage section 50b to allow cables pulled in from outside the first housing 11a, for example, cables that are raised through the stand 30, to be routed to the second housing 11b, and a cable passage opening is provided in the partition wall of the first housing 11a opposite the left end of the cable rack 49.

[0069] (f2. Side door of the first enclosure) A first side door 32 is provided on the right side of the first housing 11a. As shown in Fig. 5, the first side door 32 is supported so as to be able to open sideways to the right by a hinge 32a whose axis is in the vertical direction at the side end of the right side facing the tunnel wall, and can be opened to a position along the tunnel wall.

[0070] As shown in Fig. 7, the first side door 32 is supported so as to be able to open sideways by hinges 32a installed at three locations on the side edge of a side opening 33 formed on the right side of the first housing 11a, facing the tunnel wall, at the top and bottom. A door closing structure is provided to hold the first side door 32 in the closed position. The door closing structure is optional, but in Fig. 7, through holes 38 are formed on the door side and screw holes 40 are formed in the opening periphery opposite the through holes 38, and door fixing screws are passed through the through holes 38 and screwed into the screw holes 40, so that the first side door 32 can be fixed in the closed position.

[0071] The first side door 32 is also provided with a door holder that holds the door in an open position along the tunnel side wall. The structure and mechanism of the door holder are arbitrary, but in FIG. 7, a stay 36 provided on the top of the door holds the first side door 32 in the open position. By holding the first side door 32 in the open position with the stay 36, when work is performed inside the first housing 11a through the side opening 33, the open first side door 32 does not move and interfere with the work. Note that reinforcing ribs may be provided on the inner surface of the first side door 32 as needed to increase the strength of the door.

[0072] (f3. Structure of the second housing) The structure of the electrical equipment side of the second housing 11b will be described in more detail below. As shown in Figures 4 and 5, an electrical equipment door 18 that opens laterally to the right on hinges 18a is disposed in the door opening on the right side of the second housing 11b. From top to bottom, the electrical equipment door 18 is equipped with a red indicator light 22, a transmitter 24, a telephone jack 28, and an answer lamp 25, and the telephone jack 28 is disposed inside the electrical equipment door 18.

[0073] Here, of the electrical equipment, the red indicator light 22 has the largest size in the front-to-rear direction in the fire extinguisher storage section 50c inside the second housing 11b, and its size is approximately 120 mm.Therefore, even if the fire hydrant device 10 is made thin to a specified width in the range of approximately 180 to 200 mm, each electrical equipment can be arranged while ensuring space for the cables pulled in from the first housing 11a side.

[0074] In addition, an auxiliary door 20 that opens sideways to the left using a hinge 20a is located on the left side of the electrical door 18, and as shown in Figure 4, terminal boxes 26a and 26b are arranged in the vertical direction on the rear surface of the second housing 11b opposite the auxiliary door 20.

[0075] Terminal boxes 26a and 26b are composed of a box body and a lid member, and when placed in second housing 11b, their dimensions (length (top and bottom) x width (left and right) x depth (front and back)) are approximately 220 mm x 140 mm x 80 mm.

[0076] Therefore, even if the fire hydrant device 10 is thinned to a predetermined width in the range of approximately 180 to 200 mm, the depth (front to back) of the terminal boxes 26a, 26b is approximately 80 mm, so sufficient space is secured within the second housing 11b to arrange the terminal boxes 26a, 26b. Furthermore, because the terminal boxes 26a, 26b are arranged in positions close to electrical equipment such as the red indicator light 22 arranged on the first door 18, the terminal boxes 26a, 26b can be connected to the electrical equipment using short wiring.

[0077] Therefore, during the assembly stage of the second housing 11b at the factory, the electrical door 18 and the auxiliary door 20 can be opened to the position shown by the imaginary lines as shown in Figure 5, thereby opening the front of the second housing 11b and making it easy to connect signal lines between the terminal blocks 26a, 26b and the electrical equipment placed on the electrical door 18.

[0078] Furthermore, even when the fire hydrant device 10 is installed inside a tunnel, the electrical door 18 and auxiliary door 20 can be released from their fixed positions and opened to the positions shown by the imaginary lines in Figure 5, making it possible to easily connect the wiring cables pulled in from the first housing 11a side to the terminal boxes 26a, 26b.

[0079] (f4.Storage of fire extinguishers) The storage of fire extinguishers in the second housing 11b will be described in more detail. As shown in Figures 4 and 5, a space is provided inside the fire extinguisher door 16 of the second housing 11b that can store two fire extinguishers 72 with an outer diameter of approximately 150 to 160 mm. Also, as mentioned above, in order to make the fire hydrant device 10 thinner, the width of the fire hydrant device 10 is set to a predetermined width in the range of 180 to 200 mm that corresponds to the outer diameter of the fire extinguisher 72. This ensures gaps of approximately 15 to 25 mm in front and behind the stored fire extinguisher 72, allowing the fire extinguisher 72 to be stored without coming into contact with the second housing 11b.

[0080] (f5. Side door of the second enclosure) The side door of the second housing 11b will be described in more detail. A second side door 34 is provided on the left side of the second housing 11b. As shown in FIG. 5, the second side door 34 is supported so as to be able to open sideways counterclockwise by a hinge 34a whose axis is the vertical direction of the side edge of the left side facing the tunnel wall, and can be opened to a position along the tunnel wall. The second side door 34 differs from the first side door 32 shown in FIG. 7 in the direction in which it opens sideways, but other structures are similar, so a detailed description of that structure will be omitted.

[0081] [g. On-site work performed with the side door open] The on-site work performed by opening the side doors, that is, the on-site work performed by opening the first side door 32 and / or the second side door 34 at the installation site of the fire hydrant device, will be described in more detail.

[0082] (g1. Mounting and fixing the chassis to the stand) As shown in Figure 1, when installing the fire hydrant device 10 in the guard passage 35, first, the stand 30 shown in Figure 3 is fixed and installed in a position abutting or close to the tunnel wall surface 26 above the guard passage 35 using anchor bolts or the like.

[0083] Next, the fire hydrant device 10 is hung by a crane or the like and placed on the stand 30, and the mounting holes 31 of the stand 30 are aligned with the mounting holes at the bottom of the first housing 11a and the second housing 11b, and the device is fixed in place by passing bolts through and tightening nuts.

[0084] 7, for the first housing 11a, the first side door 32 on the right side is opened, and the worker reaches in from the side of the housing through the opened door opening 33 to align the mounting hole 31 of the stand 30 closest to the first side door 32 with the mounting hole in the bottom of the first housing 11a, insert a bolt, and then fasten with a nut. Similarly, the second side door 34 on the left side of the second housing 11b is opened, and the worker reaches in from the side of the housing through the opened door opening 33 to align the mounting hole 31 of the stand 30 closest to the second side door 34 with the mounting hole in the bottom of the second housing 11b, insert a bolt, and then fasten with a nut.

[0085] This allows for simple and easy on-site work of attaching and fixing the first housing 11a and the second housing 11b to the stand 30. Furthermore, by opening the first side door 32 and the second side door 34, there is no need to open the tilt-forward door 12 or the fire extinguisher door 16 as in the past, and movement of the guards through the passageway is not obstructed.

[0086] (g2. Water supply pipe connection work) Furthermore, when the first housing 11a is mounted and fixed on the stand 30, it is necessary to connect the primary piping of the water supply valve 52 to the water supply pipe 48 that rises from the road surface of the guard passage 35 into the housing through the stand 30. In this case as well, as shown in Figure 7, the first side door 32 is opened and the worker can reach in from the side of the housing through the opened door opening 33, thereby simply and easily connecting the water supply pipe 48 to the primary piping of the water supply valve 52.

[0087] (g3. Cable pulling work) Furthermore, when first housing 11a is attached and fixed on mount 30, it is necessary to insert a cable drawn in from the outside into cable rack 49 formed on the top of first housing 11a and connect the cable to the terminal blocks in terminal boxes 26a, 26b arranged in second housing 11b, as shown in Fig. 6. In this case as well, as shown in Fig. 7, the first side door 32 is opened, and a cable that has been raised from the monitor passage 35 side through mount 30 is inserted into cable rack 49 through the opened door opening 33, and the cable is then drawn out to the terminal blocks 26a, 26b, which can be easily and simply done by an operator by inserting his or her hand through side opening 33.

[0088] (g4. Inspection and repair work during operation) Furthermore, when periodic inspections of the fire hydrant device 10 are conducted while the tunnel is in operation, inspection of the fire hydrant equipment, such as the fire hydrant valve 54 and the automatic pressure regulating valve 56, arranged inside the first housing 11a can be carried out simply and easily by opening the first side door 32, as shown in Fig. 7. Furthermore, if a malfunction occurs in the fire hydrant equipment, such as the fire hydrant valve 54 or the automatic pressure regulating valve 56, as shown in Fig. 5, opening the first side door 32 can enable work such as replacement or repair to be carried out simply and easily.

[0089] [h. Other embodiments of side doors] Other embodiments of the side door will be described in more detail. The other embodiments of the side door can be divided into a front-opening side door and a top-opening side door.

[0090] (h1. Front-opening side door) The front-opening side door will be described in more detail with reference to Fig. 8, which shows a cross section of the internal structure of the fire hydrant device as viewed from above, and Fig. 9, which shows the first side door of the first housing open.

[0091] As shown in FIG. 8, the first side door 32 provided on the right side of the first housing 11a is supported so as to be freely opened sideways in a clockwise direction by a hinge 32a whose axis is in the vertical direction of the side end of the right side facing the road (near side), and can be opened to a position along the front of the first housing 11a.

[0092] As shown in Fig. 9, the first side door 32 is supported so as to be able to open sideways by hinges 32a installed at three locations in the upper and lower directions at the side edge on the road side (front side) of a side opening 33 formed on the right side of the first housing 11a. A door closing structure is provided to hold the first side door 32 in the closed position, and although the door closing structure is optional, in Fig. 9, a through hole 38 is formed on the door side and a screw hole 40 is formed in the opening periphery opposite the through hole 38, and a door fixing screw is threaded into the through hole 38, so that the first side door 32 can be fixed in the closed position.

[0093] The first side door 32 is also provided with a door holder that holds the door in an open position along the front of the housing. The structure and mechanism of the door holder are arbitrary, but in FIG. 9, magnets 42 are arranged at two locations, one above and one below, on the open end of the first side door 32, and the first side door 32 is held in the open position by magnetic attraction to the decorative frame 13a. By holding the first side door 32 in the open position by magnetic attraction of the magnets 42 in this way, when a worker performs work inside the first housing 11a through the side opening 33, the open first side door 32 does not move and interfere with the work. Note that if the decorative frame 13a is made of a material that is not magnetically attracted, a magnetically attractable member can be placed on the decorative frame 13a at a position corresponding to the magnet 42 of the open first side door 32. 8, the second side door 34 provided on the left side of the second housing 11b is supported so as to be freely opened sideways counterclockwise by a hinge 34a whose axis is the vertical direction of the side edge of the left side facing the road (front side), and can be opened to a position along the front of the housing. The second side door 34 differs in the direction in which it opens sideways from the first side door 32 shown in FIG. 9, but other structures are similar, so a description thereof will be omitted.

[0094] (h2. Top-opening side door) The upward-opening side door will be described in more detail with reference to Figure 10, which shows the first side door of the first housing open.

[0095] 10, first side door 32 provided on the right side of first housing 11a is supported so as to be able to open upward, for example, by hinges 32a provided at two locations in the front-to-rear direction at the upper end of side opening 33 formed on the right side of first housing 11a. Also, a door closing structure that holds first side door 32 in a closed position is provided, and while the door closing structure is arbitrary, for example, through holes 38 are formed on the door side, screw holes 40 are formed in the opening periphery opposite to through holes 38, and door fixing screws are threaded through through holes 38 and into screw holes 40, thereby making it possible to fix first side door 32 in the closed position.

[0096] The first side door 32 is provided with a door holder that holds the door in an open position that is diagonally upward or horizontal with respect to the top surface of the housing. The structure and mechanism of the door holder are arbitrary, but in Fig. 10, the door is held in the open position by a stay 36 provided on the inside of the door that faces the tunnel wall. Note that the open first side door 32 may not be held in the open position by the stay 36, and the first side door 32 may be rotated and placed on the top surface of the first housing 11a in the open position.

[0097] 10, the second side door 34 provided on the left side of the second housing 11b is supported so as to be freely openable upward by hinges provided at two locations in the front-to-rear direction at the upper end of the side opening formed on the right side of the second housing 11b, and the door open position is maintained by a stay provided on the inside of the door that faces the tunnel wall. Also, the door may be opened to a position where it rests on the top surface of the second housing 11b without being held by a stay.

[0098] [i. Modifications of the present invention] Modifications of the fire hydrant device according to the present invention will be described. In addition to the above-described embodiment, the fire hydrant device of the present invention includes the following modifications.

[0099] (Wall-mounted fire hydrant device) The above embodiment has been given as an example of a fire hydrant device with a stationary structure in which the housing is attached and fixed to the top of a stand installed on the road surface of the guard passage close to the tunnel wall, but this is not limited to this. Similarly, a wall-mounted fire hydrant device in which the housing is attached and fixed to the front part on the road side of a stand installed on the tunnel wall above the road surface of the guard passage may also be used, in which a side door is provided on the side of the housing and the side door can be opened to allow work inside the housing from the outside side.

[0100] (Fire hydrant equipment) In the above embodiment, the fire extinguisher is stored in the second housing, but the fire extinguishing device may also have a structure in which there is no fire extinguisher storage section in the second housing, an electrical door and an auxiliary door are provided at the front opening, and a terminal box is provided inside the housing.In this case, too, a first side door is provided on a side other than the connecting side of the first housing that stores the fire hydrant equipment, and a second side door is provided on a side other than the connecting side of the second housing.

[0101] (If the tunnel wall has a cross section other than a circular cross section) In the above embodiment, the tunnel cross-sectional shape is circular, but if the tunnel cross-section is other than circular, such as a tricentric circle, the present invention can be applied by taking the horizontal line at the position where the horizontal width of the tunnel cross-sectional shape is widest as the tunnel center line SL1 in the above explanation.

[0102] (Fire hydrant device structure compatible with thinning) In the fire hydrant device in the above embodiment, the width of the first and second housings is increased to accommodate the reduction in thickness of the fire hydrant device, thereby ensuring the internal volume that would have been reduced by the reduction in thickness. However, the vertical width of the first and second housings may also be increased to ensure the internal volume that would have been reduced by the reduction in thickness.

[0103] (When water supply piping is installed or cables are routed from the side) In the above embodiment, the water supply pipes are set up and the cables are pulled in from the bottom of the first housing, but if they are to be done from the side of the first housing, that part is made up of a fixed plate and the side door is placed in the part excluding the fixed plate.

[0104] (others) Furthermore, the present invention includes appropriate modifications that do not impair the objects and advantages thereof, and is not limited to the numerical values ​​shown in the above embodiments. [Explanation of symbols]

[0105] 10: Fire hydrant equipment 11a: First cabinet 11b: Second cabinet 12: Forward tilting door 13a, 13b: decorative frame 14: Maintenance door 16: Fire extinguisher door 17: Peephole 18: Electric door 20: Auxiliary door 22: Red indicator light 24: Transmitter 25: Answer lamp 26a, 26b: Terminal box 28: Telephone Jack 30: Stand 32: First side door 32a, 34b: hinge 33: Side opening 34: Second side door 35: Guard passage 36: Stay 38:Through hole 40: screw hole 42: Magnet 46: Road 48: Water supply piping 49: Cable rack 50a: Valve storage section 50b: Hose storage section 50c: Fire extinguisher storage compartment 52: Water tap 54: Fire hydrant valve 56: Automatic pressure regulating valve 58: Fire hydrant valve opening / closing lever 60: Fire hose 62: Hose storage frame 64: Pump start switch 66: Hose guide 68: Nozzle 70: Nozzle holder 72: Fire extinguisher

Claims

1. A fire hydrant device in which a housing is installed close to or in contact with a tunnel wall at a predetermined height above the road surface of a guard passage provided along the wall of a tunnel having a road, a side door supported on a side surface of the housing so as to be able to open upward from bottom to top on the side surface of the housing with the upper end of the side opening of the housing in the front-rear direction as an axis; a door closing structure that holds the side door in a closed position; Equipped with A fire hydrant device characterized in that the side door can be opened to allow work inside the housing to be performed from the outside of the side.

2. A fire hydrant device in which a housing is installed close to or in contact with a tunnel wall at a predetermined height above the road surface of a guard passage provided along the wall of a tunnel having a road, The center line passing from the rear face to the front face of the housing is as close as possible to or coincides with the horizontal line at the widest position of the horizontal width of the tunnel cross-sectional shape, a side door supported on a side surface of the housing so as to be able to open upward from bottom to top on the side surface of the housing with the upper end of the side opening of the housing in the front-rear direction as an axis; A fire hydrant device characterized in that the side door can be opened to allow work inside the housing to be performed from the outside of the side.

3. The fire hydrant device according to claim 1 or 2, The fire hydrant device is characterized in that the side door can be rotated to an open position where it is placed on the top surface of the housing.

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