Fire hydrant system

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 for storing a fire hose, a fire extinguisher, etc. 【Background Art】 【0002】 Conventionally, in tunnels such as highways and motorways, a fire hydrant device is installed as an emergency facility in the tunnel. The fire hydrant device stores a fire hose with a nozzle attached to its tip and valves including a fire hydrant valve in a fire hydrant storage section of a housing equipped with a forward-tilting door (fire hydrant door), and also stores, for example, two fire extinguishers in a fire extinguisher storage section equipped with a fire extinguisher door. Also, the fire hydrant device is generally installed by cutting out the tunnel wall surface at intervals of, for example, 50 meters in the longitudinal direction of the tunnel and embedding it. 【0003】 By the way, in a tunnel constructed by the shield method or the like, due to the structure of the tunnel body, it is difficult to cut out the tunnel wall surface and embed the fire hydrant device due to cost and labor, so it is necessary to install the fire hydrant device in an exposed state in the monitor passage. 【0004】 Also, in order to install the fire hydrant device without cutting out the tunnel wall surface, a wall-mounted structure has been proposed in which the fire hydrant device is attached and fixed to a pedestal installed on the tunnel wall surface. In this case, the pedestal is composed of a main support portion fixed to the wall surface and a posture holding member that holds the posture of the fire hydrant device (Patent Document 2). 【0005】 Also, since the wall-mounted fire hydrant device has problems such as taking a lot of labor and time to attach to the tunnel wall surface, it is considered to adopt a so-called standing structure in which the fire hydrant device is attached and fixed in an exposed state to a pedestal installed on the road surface of the monitor passage where installation is easy. 【Prior Art Documents】 【Patent Documents】 【0006】 【Patent Document 1】 Japanese Patent Publication No. 2016-055073 [Patent Document 2] Japanese Patent Publication No. 2020-078429 [Overview of the Initiative] [Problems that the invention aims to solve] 【0007】 Incidentally, when a wall-mounted or freestanding fire hydrant system is installed at a predetermined height in the supervisory walkway using a stand, the following tasks are required at the installation site: attaching and securing the fire hydrant system's casing to the stand with bolts and nuts; connecting the water supply piping, which rises from the road surface side of the supervisory walkway, to the valves inside the casing; and pulling in cables from the outside and connecting them to the terminal box inside the casing. This on-site work involves opening the forward-sloping door or fire extinguisher door on the front of the casing towards the supervisory walkway and having a worker reach into the casing with their hands or body through the door opening. 【0008】 Therefore, the opening of the forward-sloping doors and fire extinguisher doors during fire hydrant system work obstructs the passage of the supervisor's corridor, hindering movement for other tasks. In addition, depending on the work inside the enclosure, workers may need to stand on the forward-sloping door that is open towards the supervisor's corridor, requiring increased strength of the forward-sloping door, which complicates the structure and increases costs. 【0009】 The present invention aims to provide a fire hydrant device that allows for easy external work on the inside of the housing of a fire hydrant device that is installed exposed on the wall surface of a monitoring passage or tunnel, without obstructing the passage of monitoring personnel. [Means for solving the problem] 【0010】 (Fire hydrant system) The present invention relates to a fire hydrant device in which a housing is installed at a predetermined height above the road surface of a monitoring walkway provided along the wall of a tunnel having a road, so as to be close to or in contact with the tunnel wall, The enclosure has a side door on the side, A key feature is that the side door can be opened, allowing work to be performed on the inside of the enclosure from the outside. 【0011】 (A housing containing fire hydrant equipment and fire extinguishers) The casing is, The first enclosure, which houses the fire hydrant equipment, and the second enclosure, which houses the fire extinguishers and electrical equipment, are connected in the lateral direction. The first enclosure is provided with a first side door on all sides except the connecting side, and the second enclosure is provided with a second side door on all sides except the connecting side. The first side door can be opened to allow work on the frame and fire hydrant equipment from the outside of the side, and the second side door can be opened to allow work on the frame, fire extinguishers and electrical equipment from the outside of the side. 【0012】 (Side doors have a horizontal opening structure that faces the tunnel wall.) The side doors are supported to open laterally freely, with the axis in the vertical direction of the side edge of the tunnel wall side of the side opening of the enclosure. 【0013】 (Side door opens horizontally towards the front) The side door is supported to open laterally freely, with the vertical axis of the road-facing side edge of the side opening of the enclosure as the pivot point. 【0014】 (Side doors open upwards) The side door is supported to open freely upwards, with the upper end of the side opening of the enclosure as the pivot point in the front-to-back direction. 【0015】 (Holding the open side door) The side door is equipped with an open-holding mechanism that maintains the open position. 【0016】 (Mounting and securing of the enclosure using a stand on the monitoring walkway) The enclosure is mounted and secured to the top of a frame installed on the road surface of the monitoring staff's walkway, positioned close to the tunnel wall. 【0017】 (Mounting and securing of the enclosure using a frame on the tunnel wall) The enclosure is attached and fixed to the front, road-facing side, of a mounting frame installed on the tunnel wall above the road surface of the monitoring staff passage. 【Advantages of the Invention】 【0018】 (Basic Advantages) According to the fire hydrant device of the present invention, in the case of a fire hydrant device installed in an exposed state on a monitor passage or a tunnel wall surface, the external space facing the side surface of the housing is an empty space, and by providing a side door on the side surface of the housing, it is possible to easily and simply perform work on the inside of the housing from the outside of the side by opening the side door. 【0019】 In addition, even when the front tilt door and the fire extinguisher door provided on the front surface of the housing are closed, it is possible to perform work on the inside of the housing from the outside by opening the side door, and it does not interfere with the passage of the monitor passage by opening the front tilt door and the fire extinguisher door. 【0020】 Moreover, there is no need to work on the opened front tilt door, and it is not necessary to make the strength of the front tilt door higher than necessary, and there is no need to provide a reinforcing structure on the front tilt door, so the door structure becomes simple and the cost can be reduced. 【0021】 (Advantages of the Housing Containing Fire Hydrant Equipment and Fire Extinguishers) In addition, the housing is connected in the side direction by a first housing in which fire hydrant equipment is housed and a second housing in which fire extinguishers and electrical equipment are housed, and a first side door is provided on the side surface of the first housing excluding the connecting side surface, and a second side door is provided on the side surface of the second housing excluding the connecting side surface. Therefore, by opening the first side door, it is possible to easily and simply perform work such as connecting a water supply pipe to fire hydrant equipment, for example, valves, from the door opening, and by opening the second side door, it is possible to easily and simply perform work on the fire extinguishers and electrical equipment from the door opening. 【0022】 (Advantages of the Lateral Opening Structure of the Side Door towards the Tunnel Wall Surface) In addition, the side door is supported so as to be able to open laterally about the vertical direction of the side end on the tunnel wall surface side of the side opening of the housing. By opening the side door laterally towards the tunnel wall surface, the side opening of the housing is opened, and it is possible to easily and simply perform necessary work by putting a hand into the housing from the wide space on the side surface of the housing. 【0023】 (Effect of the side door opening horizontally towards the front) Furthermore, the side door is supported to open laterally freely, pivoting on the vertical axis of the road-facing side edge of the side opening of the enclosure. This allows it to open widely from the side to a position that is approximately 3 / 4 of a turn forward, reaching the front of the enclosure. This makes it possible to easily and conveniently perform necessary tasks by reaching into the enclosure from the wide space on the side. 【0024】 (Effect of the upward-opening structure of the side doors) The side door is supported to open freely upwards, pivoting on the front-to-back axis of the upper end of the side opening of the enclosure. Opening the side door upwards opens the side opening of the enclosure, allowing users to easily and quickly access the enclosure from the wide space on the side and perform necessary tasks. 【0025】 (Effect of holding open side doors) Furthermore, the side door is held in the open position by the open-holding mechanism, preventing it from moving and obstructing work. 【0026】 (Effect of mounting and securing the enclosure using a stand on the monitoring staff walkway) Furthermore, the enclosure is a stationary structure that is mounted and fixed to the top of a frame installed on the road surface of the monitoring walkway, positioned close to the tunnel wall. This allows for easy and convenient work inside the enclosure, such as attaching and fixing the enclosure to the frame installed in the monitoring walkway using bolts and nuts, by opening the side door and reaching into the enclosure through the wide space on the side. 【0027】 (Effect of mounting and securing the enclosure using a frame on the tunnel wall) Furthermore, the enclosure is a wall-mounted structure that is attached and fixed to the road-facing front of a frame installed on the tunnel wall above the road surface of the monitoring walkway. This allows for easy and convenient work inside the enclosure, such as attaching and fixing the enclosure to the frame on the tunnel wall using bolts and nuts, by opening the side door and reaching into the enclosure through the wide space on the side, just like with a stationary structure. [Brief explanation of the drawing] 【0028】 [Figure 1] This is an explanatory diagram showing the installation status of fire hydrant systems inside a tunnel. [Figure 2] This is an explanatory diagram illustrating the installation status of fire hydrant devices in a tunnel cross-section. [Figure 3] This is a perspective view showing the mounting frame for the fire hydrant system, removed from the packaging. [Figure 4] This is an explanatory diagram showing the internal structure of a fire hydrant system, viewed from the front with the front-sloping door open. [Figure 5] This is a plan view diagram illustrating the internal structure of a fire hydrant system equipped with a side door that opens towards the tunnel wall. [Figure 6] This is an explanatory diagram showing the internal structure of a fire hydrant system from the right side. [Figure 7] This is a perspective view showing the first side door in Figure 5 with the door open. [Figure 8] This is a plan view diagram illustrating the internal structure of a fire hydrant system equipped with a side door that opens to the front of the enclosure. [Figure 9] This is a perspective view showing the first side door in Figure 8 with the door open. [Figure 10] This is a perspective view showing the enclosure with the side door that opens upwards in the open position. [Modes for carrying out the invention] 【0029】 Embodiments of the fire hydrant device according to the present invention will be described in detail below with reference to the drawings. However, the present invention is not limited to the following embodiments. 【0030】 [Basic Concepts of the Embodiment] First, the basic concept of the embodiment will be explained. The embodiment generally relates to a fire hydrant system in which fire hydrant equipment, electrical equipment, a terminal box, and a fire extinguisher are arranged inside a housing. 【0031】 Here, "fire hydrant system" refers to a type of emergency equipment installed in areas such as tunnels on expressways and motorways that are subject to fire suppression. It consists of a housing installed in the fire suppression area containing fire hydrant equipment such as fire hoses, electrical equipment such as red indicator lights and transmitters on an electrically operated door, a terminal box, and fire extinguishers. The concept includes fire hydrant facilities in which a fire hydrant system is installed. 【0032】 Furthermore, the fire hydrant system is installed exposed at a predetermined height above the road surface of the guardian's walkway, which is provided along the inner wall of the tunnel containing the road. Here, "predetermined height" refers to a height at which the fire hydrant system can be installed in close proximity to or in contact with the tunnel wall. For example, this can be achieved by attaching and fixing the housing to the upper part of a frame installed on the road surface of the guardian's walkway, or by attaching and fixing the housing to the front part of a frame installed on the tunnel wall above the road surface of the guardian's walkway, which is on the road side. 【0033】 Furthermore, "framework" refers to a structure that supports objects using columns and beams, and although specific examples are not shown in the illustration, it includes concepts such as support base, foundation, base, pedestal, and base. 【0034】 The fire hydrant device of this embodiment is characterized by having a side door on the side of the housing, which allows an operator to open the side door and perform work inside the housing from the outside. Here, the "side door" is a door provided in the side opening of the side of the housing of the fire hydrant device, which is installed in an exposed state at a predetermined height above the road surface of the supervisor's passage, and it is optional whether it is provided on both sides or on one side. 【0035】 For example, the housing of a fire hydrant system consists of a first housing containing the fire hydrant equipment and a second housing containing the fire extinguisher, electrical equipment, and terminal box, connected laterally. The first housing has a first side door on the side excluding the connecting side, and the second housing has a second side door on the side excluding the connecting side. The first and second side doors are opened to allow the housing to be attached and fixed to the frame from the outside of the side, and the first side door is opened to allow work on the fire hydrant equipment from the outside of the side, and the second side door is opened to allow 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, response lamps, and telephone jacks located on the electrical door, and "terminal box" refers to a storage box equipped with terminal blocks for connecting wiring cables and the like, which are drawn into the enclosure from the outside of the fire hydrant system, to the electrical equipment. 【0037】 The direction in which the side door opens is arbitrary, but for example, the side door is supported so that it can open laterally around the vertical axis of the side end of the side opening of the housing that faces the tunnel wall. In this case, the side door is provided with an opening retaining part that holds it open to the tunnel wall side. 【0038】 Furthermore, the side door is supported to open laterally freely, with the axis being the vertical direction of the road-facing side end of the side opening of the enclosure. In this case, the side door is provided with an open-holding mechanism that holds it open to the front of the enclosure. 【0039】 Furthermore, the side door is supported so as to be able to open upwards with an axis in the front-to-back direction of the upper end of the side opening of the housing. In this case, the side door is provided with an open-holding part that holds the open position to be diagonally upward or horizontal. 【0040】 The following describes a specific embodiment. In the specific embodiment shown below, the fire hydrant device is mounted and fixed on a stand installed on the monitoring staff passage inside the tunnel, and the side door provided on the side of the housing closest to the storage area for the fire hydrant equipment is the "first side door," and the side door provided on the side of the housing closest to the storage area for the fire extinguisher is the "second side door." 【0041】 [Specific details of the embodiment] We will now explain the fire hydrant system in more detail. The explanation will be divided as follows: a. Overview of fire hydrant systems b. Installation of fire hydrant system c. Installation height and slimming of fire hydrant systems d. Configuration that accommodates the miniaturization of fire hydrant systems e. Stand for fire hydrant system f. Structure of a fire hydrant system with a side door f1. Structure of the first enclosure f2. Side door of the first enclosure f3. Structure of the second enclosure f4. Fire extinguisher storage f5. Side door of the second cabinet g. On-site work performed with the side door open. g1. Installation and fixing of the enclosure to the mounting frame. g2. Water supply pipe connection work g3. Cable installation work g4. Inspection and repair work during operation h. Other embodiments of side doors h1. Front-opening side door h2. Side doors with an upward-opening structure i. Modified versions of the present invention 【0042】 [a. Overview of fire hydrant systems] A more detailed explanation of the fire hydrant system will follow. Figure 1 is an explanatory diagram showing the installation of the fire hydrant system inside the tunnel. Figure 1(A) shows the installation of the fire hydrant system as seen in the tunnel cross-section, and Figure 1(B) shows the installation of the fire hydrant system as seen in the direction of the tunnel wall. 【0043】 As shown in Figure 1(B), the housing of the fire hydrant device 10 in 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 sections. A forward-tilting door 12, which functions as a fire hydrant door, is positioned on the lower side of the door opening and opens downwards by a hinge 12a. A maintenance door 14, which opens upwards by a hinge 14a, is positioned on the upper side of the door opening. The storage section for fire hydrant equipment, which is the interior of the first housing 11a, houses predetermined fire hydrant equipment, including fire hoses and valves such as fire hydrant valves. 【0045】 On the right side of the first enclosure 11a, there is a first side door 32 that can be opened to the right, with the vertical axis of the side end of the side opening on the tunnel wall side as the pivot point. 【0046】 Furthermore, a decorative frame 13b is attached to the front of the second enclosure 11b. The decorative frame 13b has two separate door openings. The right-hand door opening has an electrical door 18 that opens horizontally to the right on a hinge 18a, while the left-hand door has an auxiliary door 20 that opens horizontally to the left on a hinge 20a, allowing access to the internal terminal boxes 26a and 26b. The electrical door 18 is equipped with electrical equipment such as a red indicator light 22, a transmitter 24, and a response lamp 25, and a telephone jack is provided on the inside. 【0047】 The red indicator light 22 is always illuminated, allowing the location of the fire hydrant device 10 to be identified from a distance. When a fire occurs and the transmitter 24 is pressed, turning on the push-button switch, a transmission signal is sent, and a fire alarm is output from the disaster prevention receiving panel installed in the electrical room or elsewhere that receives this signal. 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】 On the rear side of the second enclosure 11b, facing the auxiliary door 20, a high-voltage terminal box 26a and a low-voltage terminal box 26b are arranged vertically. The high-voltage terminal box 26a uses a built-in terminal block to connect the high-voltage cable drawn in from outside the fire hydrant system 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 in from outside the fire hydrant system 10 to the transmitter 24, response lamp 25, telephone jack, etc. 【0049】 Furthermore, a fire extinguisher door 16 is provided in the door opening on the left side of the decorative frame 13b, which opens horizontally to the left by a hinge 16a, and two fire extinguishers can be stored inside the fire extinguisher door 16. In addition, a viewing window 17 is provided on the lower side of the fire extinguisher door 16, allowing the presence or absence of fire extinguishers to be checked from the outside. 【0050】 Furthermore, the left side of the second enclosure 11b is provided with a second side door 34 that can be opened to the left, pivoting on the vertical axis of the side end of the side opening facing the tunnel wall. 【0051】 [b. Installation of fire hydrant systems] A more detailed explanation will be given regarding the installation of fire hydrant equipment inside the tunnel. Below the cylindrical (circular cross-section) tunnel structure constructed by the shield tunneling method, a road 46 is constructed in the longitudinal direction (left-right direction) of the tunnel, and a monitoring walkway 35 is constructed at a predetermined height relative to the road 46, below the tunnel wall 26 along the rear side of the road 46. 【0052】 Because it is difficult to cut out a box in the tunnel wall 26 constructed using the shield tunneling method to install the fire hydrant device 10, a support frame 30 is installed on the road surface of the monitoring walkway 35, close to the tunnel wall 26, and the connected first housing 11a and second housing 11b are attached and fixed onto the support frame 30 to install the fire hydrant device 10. Here, the height H1 of the support frame 30 is set so that the height from the road surface of the monitoring walkway 35 to the transmitter 24 located on the fire hydrant device 10 falls within the legally stipulated range of 800 mm to 1500 mm. 【0053】 Furthermore, as shown in Figure 1(A), the frame 30 of this embodiment has a side shape that 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 26. The upper end surface of the frame 30 is to which the first housing 11a and the second housing 11b, to which the fire hydrant device 10 is connected, are attached and fixed. 【0054】 [c. Installation height and slimming of fire hydrant systems] The installation height and thinning of the fire hydrant device will be explained in more detail. In order to reduce the constraint on the width of the passage due to the protrusion (overhang) of the fire hydrant device 10, which is installed on the road surface of the guardian passage 35 by the support frame 30, from the tunnel wall 26, the installation height of the fire hydrant device 10 has been optimized, and the fire hydrant device 10 has also been made as thin as possible. 【0055】 First, since the installation height of the fire hydrant device 10 is determined by the support frame 30, we will explain in more detail how to optimize the height H1 of the support frame 30. Figure 2 schematically shows the installation state of the fire hydrant device in the tunnel cross-section. The tunnel wall 26 on which the fire hydrant device 10 is installed has a circular cross-section. In Figure 2(A), the height H1 of the support frame 30 is set such that the horizontal centerline SL2 of the housing of the fire hydrant device 10, which is installed on the monitoring walkway 35, is as close as possible to the horizontal tunnel centerline SL1 from the tunnel center (center of the circular cross-section) P. 【0056】 In this case, the closer the housing centerline SL2 is to the tunnel centerline SL1, the less the fire hydrant device 10 protrudes from the tunnel wall 26. 【0057】 Figure 2(B) shows the case where the height H1 of the support frame 30 is set so that the centerline SL2 of the housing coincides with the centerline SL1 of the tunnel. In this case, the degree to which the fire hydrant device 10 protrudes from the tunnel wall 26 can be minimized. However, the height H1 of the support frame 30 should be adjusted within a reasonable range, taking into account the removal of fire extinguishers, etc. 【0058】 Next, the thinning of the fire hydrant device 10 will be explained in more detail. The largest component in the fire hydrant device 10 in the front-to-back direction is the fire extinguisher housed in the second housing 11b. If the width (thickness in the front-to-back direction) of the fire hydrant device is the minimum value that the fire extinguisher can accommodate in the second housing 11b, then the fire hydrant device 10 can be made thinner. Therefore, the width of the fire hydrant device 10 is set to a predetermined width corresponding to the outer diameter of the fire extinguisher housed in the second housing 11b. 【0059】 The outer diameter of a fire extinguisher is approximately 150-160 mm. 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 will be, for example, within a range of approximately 180-200 mm, and the width of the fire hydrant device 10 will be set to a predetermined width within that range. In contrast, the width of a conventional fire hydrant device 10, which is installed by cutting out a box in the wall of a tunnel structure, is approximately 300 mm. Therefore, the width of the fire hydrant device 10 in this embodiment can be reduced to 2 / 3 or less of the conventional width, and the fire hydrant device 10 can be made thinner. 【0060】 [d. Configuration adapted to the miniaturization of fire hydrant systems] If the fire hydrant device 10 is made thinner to a predetermined width of approximately 180 to 200 mm, corresponding to the outer diameter of the fire extinguisher, it becomes difficult to store a fire extinguishing hose of a predetermined length, such as a 30 m shape-retaining hose, in the first housing 11a in an inward-curled state, 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 devices in an inward-curled state. 【0061】 Furthermore, as the fire hydrant device 10 is made thinner, it becomes difficult to place terminal boxes 26a and 26b on the rear surface of the housing behind the fire extinguisher storage section where the fire extinguisher is housed, 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 accommodate not only the fire extinguisher storage but also electrical equipment and terminal boxes. 【0062】 [e. Stand for fire hydrant equipment] The stand for the fire hydrant system will be explained in more detail. Figure 3 is a perspective view of the stand. The stand 30 is made by cutting angle material or the like to a predetermined length and welding it into a box shape, and the angle material or the like is arranged so that when viewed from the side, it forms an inverted trapezoid with the top side longer than the bottom side. On the upper end surface of the stand 30, mounting holes 31 are formed in pairs of two, front and back, at three locations along the longitudinal direction of the top surface. The mounting holes 31 are formed at positions corresponding to the mounting holes at the bottom of the first housing 11a and the second housing 11b of the fire hydrant system 10, and the first housing 11a and the second housing 11B are attached and fixed to the stand 30 by passing bolts through them and fitting nuts with the mounting holes of both aligned. 【0063】 [f. Structure of a fire hydrant system with a side door] The structure of a fire hydrant system equipped with a side door will be described in more detail with reference to Figures 4 to 7. 【0064】 (f1. Structure of the first enclosure) The structure of the first housing 11a will be explained in more detail. Refer to Figure 4, which shows the internal structure of the fire hydrant system with the front-facing door (fire hydrant door) and maintenance door open; Figure 5, which shows the internal structure of the fire hydrant system in a cross-sectional view from above; Figure 6, which shows a cross-sectional view of the hose storage section of the first housing from the right side; and Figure 7, which shows the first side door of the first housing open. Of these, Figure 5 is the cross-section indicated by the cutting line aa in Figure 4, and Figure 6 is the cross-section indicated by the cutting line bb in Figure 4. Note that the front-facing door 12 in Figure 6 is the side view of the door in Figure 4. 【0065】 The interior of the first housing 11a, which houses the fire hydrant equipment, is divided into a valve storage section 50a and a hose storage section 50b. In the valve storage section 50a, a water supply pipe 48 is drawn in from below through the frame 30 and connected to a water tap 52. The water supply pipe 48 also branches downward, and a fire hydrant valve 54 and an automatic pressure regulating valve 56 are provided at the branch end, followed by a fire extinguishing hose 60 using a shape-retaining hose. 【0066】 The fire hydrant valve 54 is opened and closed by a fire hydrant valve opening / closing lever 58. When the fire hydrant valve opening / closing lever 58 is opened or closed, the fire hydrant valve 54 is remotely opened and closed by a known wire linkage mechanism. When the fire hydrant valve opening / closing lever 58 is opened or closed, a pump activation interlocking switch located in the control box is turned on or off. In addition, a pump activation switch 64 for use by the fire brigade is located to the upper right of the water tap 52. 【0067】 A hose storage frame 62 is provided in the hose storage section 50b, and the fire extinguishing hose 60, which is pulled in from below, is stored in a clockwise or counterclockwise inward-curved state. Here, the hose storage frame 62 has been widened to accommodate the increased width of the first housing 11a due to the thinning of the fire extinguishing device 10, and it is possible to store the same predetermined length of fire extinguishing hose 60 with fewer turns compared to conventional fire extinguishing devices. In addition, a nozzle 68 is attached to the end of the fire extinguishing hose 60 that is pulled out through the hose guide 66, and the nozzle 68 is detachably held in the nozzle holder 70. 【0068】 Furthermore, as shown in Figure 6, a cable rack 49 is provided at the top of the hose storage section 50b to route cables pulled in from outside the first housing 11a, for example, cables raised through the support frame 30, to the second housing 11b side. 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 cabinet) A first side door 32 is provided on the right side of the first housing 11a. As shown in Figure 5, the first side door 32 is supported by a hinge 32a that pivots vertically on the right side edge facing the tunnel wall, allowing it to open laterally to the right and to a position along the tunnel wall. 【0070】 As shown in Figure 7, the first side door 32 is supported so as to be able to open laterally by hinges 32a installed at three locations in the vertical direction on the side edge of the tunnel wall side of the side opening 33 formed on the right side of the first housing 11a. A door closing structure is also provided to hold the first side door 32 in the closed position. The door closing structure is arbitrary, but in Figure 7, a through hole 38 is formed on the door side, and screw holes 40 are formed on the peripheral edge of the opening opposite the through hole 38. By passing door fixing screws through the through hole 38 and screwing them into the screw holes 40, the first side door 32 can be fixed in the closed position. 【0071】 Furthermore, the first side door 32 is provided with a door holding mechanism that holds the door in an open position along the tunnel side wall. The structure and mechanism of the door holding mechanism are arbitrary, but in Figure 7, the open position of the first side door 32 is held by a stay 36 provided at the top of the door. By holding the open position of the first side door 32 with the stay 36, the open first side door 32 does not move and obstruct work when working inside the first housing 11a through the side opening 33. Note that the door strength may be increased by placing reinforcing ribs on the inner surface of the first side door 32 as needed. 【0072】 (f3. Structure of the second enclosure) The structure of the electrical equipment side of the second housing 11b will now be described in more detail. As shown in Figures 4 and 5, an electrical equipment door 18 that opens horizontally to the right by a hinge 18a is located in the door opening on the right side of the second housing 11b. On the electrical equipment door 18, a red indicator light 22, a transmitter 24, a telephone jack 28, and an answer lamp 25 are arranged from top to bottom, with the telephone jack 28 located on the inside of the electrical equipment door 18. 【0073】 Here, among the electrical equipment, the red indicator light 22 has the largest front-to-back dimensions in the fire extinguisher storage section 50c, which is located inside the second housing 11b. Its dimensions are approximately 120 mm. Therefore, even if the fire hydrant device 10 is made thinner to a predetermined width of approximately 180 to 200 mm, it is possible to arrange the electrical equipment while still securing space for the cables pulled in from the first housing 11a. 【0074】 Furthermore, an auxiliary door 20 that opens horizontally to the left by a hinge 20a is located to the left of the electrical door 18, and as shown in Figure 4, terminal boxes 26a and 26b are arranged vertically on the rear surface of the second housing 11b opposite the auxiliary door 20. 【0075】 The terminal boxes 26a and 26b consist of a box body and a lid, and when placed on the second enclosure 11b, their dimensions (height (top and bottom) x width (left and right) x depth (front and back)) are approximately 220mm x 140mm x 80mm. 【0076】 Therefore, even if the fire hydrant device 10 is made thinner to a predetermined width in the range of approximately 180 to 200 mm, the depth (front to back) of the terminal boxes 26a and 26b is approximately 80 mm, so sufficient space is secured inside the second housing 11b to accommodate the terminal boxes 26a and 26b. In addition, since the terminal boxes 26a and 26b are located close to electrical equipment such as the red indicator light 22 located on the first door 18, connections between the terminal boxes 26a and 26b and the electrical equipment can be made with short wiring lengths. 【0077】 Therefore, during the assembly of the second enclosure 11b at the factory, as shown in Figure 5, the front of the second enclosure 11b can be opened by opening the electrical door 18 and the auxiliary door 20 to the positions indicated by dashed lines, making it easy to connect the terminal blocks 26a and 26b with the electrical equipment located on the electrical door 18 using signal lines. 【0078】 Furthermore, even when the fire hydrant device 10 is installed inside the tunnel, the electrical door 18 and the auxiliary door 20 can be released from their fixed positions, and as shown in Figure 5, the electrical door 18 and the auxiliary door 20 can be opened to the positions indicated by the dashed lines, making it easy to connect the wiring cables pulled in from the first housing 11a side to the terminal boxes 26a and 26b. 【0079】 (f4. Fire extinguisher storage) The storage of fire extinguishers in the second housing 11b will now be explained in more detail. As shown in Figures 4 and 5, the inside of the fire extinguisher door 16 of the second housing 11b has space to store two fire extinguishers 72 with an outer diameter of approximately 150 to 160 mm. In addition, as mentioned above, in order to make the fire hydrant device 10 thinner, the width of the fire hydrant device 10 is a predetermined width in the range of 180 to 200 mm corresponding to the outer diameter of the fire extinguishers 72. This ensures a gap of approximately 15 to 25 mm in front of and behind the stored fire extinguishers 72, allowing the fire extinguishers 72 to be stored without coming into contact with the second housing 11b. 【0080】 (f5. Side door of the second cabinet) The side door of the second enclosure 11b will now be described in more detail. The second side door 34 is provided on the left side of the second enclosure 11b. As shown in Figure 5, the second side door 34 is supported by a hinge 34a that pivots on the vertical direction of the left side edge facing the tunnel wall, allowing it to open counterclockwise and open to a position along the tunnel wall. The details of the second side door 34 differ from those of the first side door 32 shown in Figure 7 in the direction of lateral opening, but the other structural aspects are similar, so a detailed explanation will be omitted. 【0081】 [g. On-site work performed by opening the side door] The field work performed by opening the side doors, specifically the field work performed at the fire hydrant installation site by opening the first side door 32 and / or the second side door 34, will be explained in more detail. 【0082】 (g1. Installation and securing of the enclosure to the mounting frame) As shown in Figure 1, when installing a fire hydrant device 10 in the monitoring passage 35, first, the frame 30 shown in Figure 3 is fixed in place using anchor bolts or the like at a position that is in contact with or close to the tunnel wall 26 on the monitoring passage 35. 【0083】 Next, the fire hydrant device 10, which has been suspended by a crane or the like, is placed on the frame 30, the mounting holes 31 of the frame 30 are aligned with the mounting holes at the bottom of the first housing 11a and the second housing 11b, and the device is secured by inserting bolts and fastening nuts. 【0084】 At this time, for the first housing 11a, as shown in Figure 7, the first side door 32 on the right side is opened, the mounting hole 31 of the frame 30 closest to the first side door 32 is aligned with the mounting hole at the bottom of the first housing 11a, a bolt is inserted, and a nut is fitted to fasten and secure it, all done by reaching in from the side of the housing through the open door opening 33. Similarly, for the second housing 11b, the second side door 34 on the left side is opened, the mounting hole 31 of the frame 30 closest to the second side door 34 is aligned with the mounting hole at the bottom of the second housing 11b, a bolt is inserted, and a nut is fitted to fasten and secure it, all done by reaching in from the side of the housing through the open door opening 33. 【0085】 This makes it easy and simple to perform on-site work to attach and secure the first housing 11a and the second housing 11b on the frame 30. In addition, since the first side door 32 and the second side door 34 can be opened, there is no need to open the forward-sloping door 12 or the fire extinguisher door 16 as in the conventional method, and the movement of the monitoring staff is not obstructed. 【0086】 (g2. Water supply pipe connection work) Furthermore, when the first housing 11a is mounted and fixed on the frame 30, it is necessary to connect the primary side piping of the water tap 52 to the water supply piping 48 that rises from the road surface of the monitoring walkway 35 into the housing through the frame 30. In this case as well, as shown in Figure 7, by opening the first side door 32 and having a worker reach in from the side of the housing through the open door opening 33, the water supply piping 48 can be connected to the primary side piping of the water tap 52 in a simple and easy manner. 【0087】 (g3. Cable installation work) Furthermore, when the first housing 11a is mounted and fixed on the frame 30, as shown in Figure 6, it is necessary to insert the cable brought in from the outside into the cable rack 49 formed on the top of the first housing 11a and connect the cable to the terminal block in the terminal boxes 26a and 26b located inside the second housing 11b. In this case as well, as shown in Figure 7, the first side door 32 can be opened, and the cable brought up from the supervisor's passage 35 side through the open door opening 33 can be inserted into the cable rack 49, for example, through the frame 30, and pulled out to the terminal block 26a and 26b side by an operator reaching in through the side opening 33. This can be done easily and simply. 【0088】 (g4. Inspection and repair work during operation) Furthermore, during periodic inspections of the fire hydrant system 10 while the tunnel is in operation, the fire hydrant equipment, such as the fire hydrant valve 54 and the automatic pressure regulating valve 56 located inside the first housing 11a, can be easily and simply inspected by opening the first side door 32, as shown in Figure 7. In addition, if a malfunction occurs in the fire hydrant equipment, such as the fire hydrant valve 54 or the automatic pressure regulating valve 56, it is possible to easily and simply perform replacement or repair work by opening the first side door 32, as shown in Figure 5. 【0089】 [h. Other embodiments of side doors] Other embodiments of the side door will be described in more detail. These other embodiments of the side door can be divided into side doors with a front-opening structure and side doors with an upward-opening structure. 【0090】 (h1. Side doors with a front-opening structure) The front-opening side door will be explained in more detail. Please refer to Figure 8, which shows the internal structure of the fire hydrant system in a cross-sectional view from above, and Figure 9, which shows the first side door of the first housing opened. 【0091】 As shown in Figure 8, the first side door 32, provided on the right side of the first housing 11a, is supported by a hinge 32a that pivots on the vertical direction of the right side edge on the road side (front side), allowing it to open clockwise and open to a position along the front of the first housing 11a. 【0092】 As shown in Figure 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 vertical direction on the road-side (front side) edge of the side opening 33 formed on the right side of the first housing 11a. A door closing structure is also provided to hold the first side door 32 in the closed position. The door closing structure is arbitrary, but in Figure 9, a through hole 38 is formed on the door side, and screw holes 40 are formed on the periphery of the opening opposite the through hole 38. By using the through hole 38 as a door fixing screw and screwing it into the screw hole 40, the first side door 32 can be fixed in the closed position. 【0093】 Furthermore, the first side door 32 is provided with a door holding mechanism that holds the door in an open position along the front of the housing. The structure and mechanism of the door holding mechanism are arbitrary, but in Figure 9, magnets 42 are placed at two locations, upper and lower, on the open end side of the first side door 32, and the open position of the first side door 32 is held by magnetic attraction to the decorative frame 13a. This magnetic attraction of the magnets 42 to hold the open position of the first side door 32 prevents the open first side door 32 from moving and interfering with the work when an operator is working inside the first housing 11a through the side opening 33. If the decorative frame 13a is made of a material that does not attract magnetically, a magnetically attracted member can be placed on the decorative frame 13a at a position corresponding to the magnets 42 on the open first side door 32. Furthermore, the second side door 34, located on the left side of the second enclosure 11b, is supported by a hinge 34a pivoted on the vertical axis of the left side edge on the road side (front side), as shown in Figure 8, allowing it to open freely to a position aligned with the front of the enclosure. The details of the second side door 34 differ from those of the first side door 32 shown in Figure 9 in the direction of its lateral opening, but the rest of its structure is similar, so a detailed explanation is omitted. 【0094】 (h2. Side doors with an upward-opening structure) The upward-opening side door will be explained in more detail. Please refer to Figure 10, which shows the first side door of the first enclosure in the open position. 【0095】 As shown in Figure 10, the first side door 32, provided on the right side of the first housing 11a, is supported to open upwards by hinges 32a installed at two locations in the front-to-back direction of the upper end of the side opening 33 formed on the right side of the first housing 11a. A door closing structure is also provided to hold the first side door 32 in the closed position. The door closing structure is arbitrary, but for example, a through hole 38 is formed on the door side, a screw hole 40 is formed on the peripheral edge of the opening opposite the through hole 38, and a door fixing screw is screwed through the through hole 38 into the screw hole 40, thereby fixing the first side door 32 in the closed position. 【0096】 Furthermore, the first side door 32 is provided with a door holding mechanism that holds the door in an open position, either diagonally upward or horizontally relative to the top surface of the housing. The structure and mechanism of the door holding mechanism are arbitrary, but in Figure 10, the door is held in the open position by a stay 36 provided on the inside of the door facing the tunnel wall. Note that the opened 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 to rest on the top surface of the first housing 11a in an open position. 【0097】 Furthermore, the second side door 34, located on the left side of the second housing 11b, is supported to open upwards by hinges installed at two locations in the front-to-back direction of the upper end of the side opening formed on the right side of the second housing 11b, similar to the first side door 32 in Figure 10. The open position of the door is maintained by a stay provided on the inside of the door, which faces the tunnel wall. Alternatively, the door may be opened to a position where it rests on the top surface of the second housing 11b without being held in place by the stay. 【0098】 [i. Variations of the present invention] Modifications of the fire hydrant device according to the present invention will now be described. In addition to the embodiments described above, the fire hydrant device of the present invention includes the following modifications. 【0099】 (Wall-mounted fire hydrant system) The above embodiment takes as an example a fire hydrant device with a stationary structure in which the housing is attached and fixed to the upper part of a frame installed on the road surface of the guardian's walkway, close to the tunnel wall. However, it is not limited to this, and in the case of a wall-mounted fire hydrant device with a housing attached and fixed to the front part on the road side of a frame installed on the tunnel wall above the road surface of the guardian's walkway, a side door is provided on the side of the housing, and by opening the side door, it is possible to work on the inside of the housing from the outside on the side. 【0100】 (Fire hydrant system) In the above embodiment, the fire extinguisher is housed in the second housing. However, the fire extinguishing system may also be constructed in which the second housing does not have a fire extinguisher storage section, but instead has an electrical door and an auxiliary door at the front opening, and a terminal box is provided inside the housing. In this case as well, a first side door is provided on the side of the first housing that houses the fire hydrant equipment, other than the connecting side, and a second side door is provided on the side of the second housing other than the connecting side. 【0101】 (When the tunnel wall has a cross-section other than circular) Although the tunnel cross-sectional shape in the above embodiment is circular, if the tunnel cross-section is not circular, for example, a three-centered circle, the present invention can be applied by setting the horizontal line at the position with the widest horizontal width of the tunnel cross-sectional shape as the tunnel centerline SL1 in the above description. 【0102】 (Structure of a fire hydrant device designed for a thinner design) In the fire hydrant device of the above embodiment, the width of the first and second housings is increased to compensate for the reduction in internal volume due to the thinning of the fire hydrant device. However, the height of the first and second housings may also be increased to compensate for the reduction in internal volume due to the thinning. 【0103】 (When water supply piping is raised or cables are routed from the side) In the above embodiment, the water supply piping is raised and cables are routed from the bottom of the first enclosure. However, if the routing is done from the side of the first enclosure, that section is made of a fixing plate, and the side door is positioned in the area excluding the fixing plate. 【0104】 (others) Furthermore, the present invention includes appropriate modifications that do not impair its purpose and advantages, and is not limited by the numerical values ​​shown in the above embodiments. [Explanation of symbols] 【0105】 10: Fire hydrant system 11a: First enclosure 11b: Second cabinet 12: Forward-sloping 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: Response lamp 26a, 26b: Terminal box 28: Phone hijacking 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 compartment 50b: Hose storage compartment 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

[Claim 1] A fire hydrant device having a housing installed at a predetermined height above the road surface of a monitoring walkway provided along the wall of a tunnel with a road, with the housing positioned close to or in contact with the tunnel wall, A side door is provided on the side of the housing, which is supported so as to be able to open upwards from the bottom to the top of the housing, with the front-to-back direction of the upper end of the side opening of the housing as the axis, A door closing structure that holds the aforementioned side door in the closed position, Equipped with, A fire hydrant device characterized in that the side door can be opened to allow work to be performed inside the enclosure from the outside on the side. [Claim 2] A fire hydrant device having a housing installed at a predetermined height above the road surface of a monitoring walkway provided along the wall of a tunnel with a road, with the housing positioned close to or in contact with the tunnel wall, The center line passing from the back to the front of the aforementioned enclosure approaches or coincides with the horizontal line at the widest point in the horizontal width of the tunnel cross-sectional shape. The side of the housing is provided with a side door that is supported to open upward from the bottom to the top of the housing, with the axis being the front-to-back direction of the upper end of the side opening of the housing. A fire hydrant device characterized in that the side door can be opened to allow work to be performed inside the enclosure from the outside on the side. [Claim 3] In 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 rests on the top surface of the housing.