JP2010017450A - Hydrant apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To effectively use a housing storage space by optimizing the disposition of valves including a maintenance device. <P>SOLUTION: A valve storage part 38 is formed in the right side of a hose storage part 36 viewed from the front of the housing. The valve storage part 38 stores the valves including a hydrant valve and the maintenance device 60 connected longitudinally, with the maintenance device 60 disposed at the lowest position. An inspection device insertion opening 62 provided on the maintenance device 60 is obliquely disposed facing a large vacant space side of a door opening part. For example, the maintenance device 60 is disposed at a corner of a housing lower part and the inspection device insertion opening 62 of the maintenance device 60 is obliquely disposed facing a vacant space A in a central side. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

The present invention relates to a fire hydrant device that opens a fire hydrant door by operating a handle device and draws out a hose with a water discharge nozzle to discharge water.

  Conventionally, a fire hydrant device has been installed in a tunnel such as an automobile road in preparation for a fire.

  FIG. 7 is a front view of a conventional fire hydrant device 100, FIG. 8 is a plan view of the internal structure of the fire hydrant device 100 with the fire hydrant door 104 open, and FIG. 9 is a side view thereof. A fire hydrant door 104 and a fire extinguisher door 106 are provided on the front surface of the housing 102 of the fire hydrant apparatus 100.

  The fire hydrant door 104 is provided with a handle. The lock can be released by pulling the handle toward the front, and the lower side of the fire hydrant door 104 can be opened forward with the rotating shaft. Further, a buffer damper 108 is provided between the hydrant door 104 and the housing 102 so that the hydrant door 104 can be opened smoothly.

  Inside the fire hydrant door 104, a hose 112 fitted with a nozzle 110 at the tip is housed in a hose bucket 116 in the housing. One end of the hose 112 is connected to a pipe disposed on the lower right side of the housing, is raised upward, and is stored counterclockwise in the hose bucket 116 through a hole opened in the side plate of the hose bucket 116. In the hole, the hose 112 enters the hose bucket 116 through the protective tube 112a to prevent the hose 112 from rubbing and scratching the hose surface when the hose 112 is pulled out. The other end of the hose 112 is drawn from the central opening of the hose bucket 116 to the back surface of the hydrant door 104, and the nozzle 110 is detachably attached to the hydrant door 104.

  A fire hydrant valve opening / closing lever 114 is provided on the back side of the fire hydrant door 104, and is connected to a fire hydrant valve 120 provided on the housing via a wire 118. To perform the water discharge operation, the fire hydrant door 104 is opened, the hose 112 with the nozzle 110 is pulled out, and the fire hydrant valve opening / closing lever 114 provided in the door is operated to open the fire hydrant valve 120 via the wire 118 to extinguish the fire. Water can be discharged by starting pump equipment.

Further, a maintenance device 118 is arranged in a horizontal portion of the pipe that reaches the connection portion of the hose 112. The maintenance device 118 is provided with a test device insertion port 120 facing the outside. The maintenance device 118 is a joint that communicates in three directions, and the water supply source side and the hose 112 communicate with each other by closing the test device insertion port 120 in a normal state. When checking the water discharge pressure or water discharge amount, if the plug of the test device insertion port 120 is opened and the adapter at the tip of the hose connected to the inspection device is inserted and connected to the test device insertion port 120, the adapter is inserted. Thus, the joint communication path closes the communication to the hose 112 side and becomes a flow path only for the inspection device insertion port 120, and the water discharge pressure and water discharge amount are measured under the same conditions as the actual water discharge without discharging water from the nozzle 110. be able to.

JP 2005-318972 A JP 2003-38676 A

  However, in such a tunnel fire hydrant device, since the maintenance device is provided at a horizontal piping position when viewed from the housing opening, a relatively large empty space is required to arrange the maintenance device. The hose storage space and the storage space for other valves are restricted, and there has been a problem that the depth of the housing is increased and the size is increased in order to secure a sufficient space.

  Also, when the hydrant door is opened, maintenance equipment that is not used in the water discharge operation in the event of a fire and the surrounding piping are conspicuous from the opening of the hydrant door. It is conceivable that an unintended thing may adversely affect the operation of fire extinguishing by entering the line of sight.

It is an object of the present invention to provide a tunnel fire hydrant device that optimizes the arrangement of valves including a maintenance device valve so that the housing storage space can be used effectively.

A housing formed with a valve housing part next to the hose housing part;
A fire hydrant door that can be freely opened and closed at the door opening of the housing corresponding to the hose storage part and the valve storage part;
Valves including a fire hydrant valve and a maintenance device arranged in the valve storage part and provided in the middle of the pipe for supplying fire-fighting water to the hose connection port;
A hose housed inside the hose housing part,
A nozzle attached to the tip of the hose;
In a fire hydrant device equipped with
The maintenance device is arranged at the bottom with the valves connected in the vertical direction, and the inspection device insertion port provided in the maintenance device is arranged obliquely toward the side with a lot of empty space in the door opening. To do.

  For example, the maintenance devices are arranged in the lower corner of the case by connecting valves in the vertical direction along the side wall of the case, and the inspection device insertion port of the maintenance device is arranged obliquely toward the empty space on the center side.

  In addition, the valves are connected in the vertical direction on the side of the hose storage part, the maintenance device is arranged at the bottom, and the inspection device insertion port of the maintenance device is arranged obliquely toward the empty space on the side wall side. good.

In addition, the piping from the maintenance device to the hose housing part or the hose was arranged below the pivot axis height of the fire hydrant door.

  According to the present invention, by connecting the valves in the vertical direction, the storage space for the valves in the horizontal direction can be minimized, and a maintenance device is arranged at the bottom and the inspection device is inserted. By arranging the mouth diagonally toward the side with a lot of free space, the inspection device hose adapter for the inspection device insertion port of the maintenance device can be used effectively by utilizing the free space secured by the vertical connection arrangement of valves. Easy to attach and detach.

  Further, since a sufficient empty space is secured beside the hose storage portion by the vertical connection arrangement of the valves, it is possible to easily perform the inner winding operation of the hose with respect to the hose storage portion.

In addition, because the maintenance device and the surrounding piping are arranged around the housing frame, when the decorative plate is attached to the housing, the maintenance device and the piping are partially hidden so that the door opening is refreshed and the fire hydrant door is opened. The worker can look closely at the parts necessary for fire fighting.

  FIG. 1 is a front view showing an embodiment of a fire hydrant device installed in a tunnel according to the present invention. In FIG. 1, the fire hydrant device 10 is divided into a fire hydrant side casing 12-1 and a fire extinguisher side casing 12-2, and has decorative panels 14-1 and 14-2 attached to the entire surface. Then, after assembling necessary devices and members to the casings 12-1 and 12-2, they are fixed by the connecting and fixing unit 15, and in this state, they are carried into the tunnel site and installed on the gantry 11.

  The decorative plates 14-1 and 14-2 are provided with door openings 16 and 17, respectively. A fire hydrant door 18 and a maintenance door 22 are provided in the door opening 16 of the first housing 12-1, and the inside is a hose storage portion and a valve storage portion. The fire hydrant door 18 can be opened and closed forward with the lower hinge 21 as the center, and is normally closed at the closed position shown in the figure by being locked by a pair of handles 20. It can be unlocked and opened.

  A maintenance door 22 that opens and closes upward by a hinge 23 is provided on the fire hydrant door 18, and can be opened by opening the fire hydrant door 18 and releasing the inner lock at the time of inspection. Moreover, the suspension ring 25 for suspending an apparatus is attached to the upper both sides of the 1st housing | casing 12-1.

  A notification device door 24 is provided on the right side of the door opening 17 of the second housing 12-2, and a red indicator lamp 26, a transmitter 28, and a response lamp 30 are provided here. Note that a telephone jack 31 is provided inside the notification device door 24 as shown in FIG.

  The red indicator lamp 26 is always turned on so that the installation location of the fire hydrant apparatus 10 can be seen from a distance. In the event of a fire, when the transmitter 28 is pressed and the switch button is turned on, a transmission signal is transmitted to the fire receiver in the monitoring room, a fire alarm is issued, and a response signal is sent from the fire receiver accordingly, and the response lamp 30 To light up.

  A fire extinguisher door 32 is provided on the left side of the door opening 17, and the inside of the housing 12 corresponding to the fire extinguisher door 32 is used as a fire extinguisher storage portion, for example, storing two fire extinguishers. The fire extinguisher door 32 is provided with a handle 34. When the handle 34 is pulled forward, the latch is released, and the fire extinguisher door 32 can be opened forward with the left side as a hinge. In addition, a viewing window 35 is provided below the fire extinguisher door 34 so that the presence or absence of the fire extinguisher can be confirmed from the outside.

  FIG. 2 is a front view showing the internal structure of the embodiment of FIG. 1 with the fire hydrant door on the first housing 12-1 side removed and the maintenance door 22 opened upward and supported by the stay 27. In FIG. 2, a hose storage portion 36 is formed on the left side of the first housing 12-1, and a valve storage portion 38 is formed on the right side.

  At both lower corners of the door opening 16, there are provided buffer members 65 that abut the inner surface of the door when the fire hydrant door 18 is opened and slowly open the hydrant door 18.

  The hose storage portion 36 is arranged in a bucket frame 40 in which frame pipes are arranged vertically in the horizontal direction, forming a hose storage space inside. The bucket frame 40 is bent so that one pipe has a U-shape when viewed from the front and a horizontal L-shape when viewed from the plane, and the upper and lower pipe ends on the left side are formed on the left side surface of the first housing 12-1. It is fixed to the inner wall surface, and the right bent end is fixed to the inner wall surface on the rear surface of the housing by a frame holder 45.

  Two hose guides 42 are fixed in the center of the bucket frame 40 in the vertical direction, and a hose outlet is formed therein. When pulling out the hose 44, the hose guide 42 prevents the inner hose 44 from collapsing or rubbing against the door opening 16 to damage or break the hose 44.

  A hose 44 is housed inside the hose housing part 36 surrounded by the bucket frame 40 and the inner wall of the housing. Here, a hose connection port 46 is disposed at the lower part of the right side valve storage unit 38, and after the primary side of the hose 44 is connected to the hose connection port 46, the hose 44 is wound into the hose storage unit 36. However, in this case, the hose 44 is wound so that the hose 44 is wound clockwise when viewed from the door opening 16.

  That is, the hose 44 connected to the hose connection port 46 is first wound in the direction of the hose storage portion 36 along the lower inner wall of the first housing 12-1, and is wound from the lower side of the hose storage portion 36, and thereafter Nozzle holder that is wound clockwise into the storage unit and that finally has the nozzle 48 attached thereto is taken out from between the hose guides 42 attached near the center of the bucket frame 40 and attached to the lower bucket frame 40 A nozzle 48 is detachably attached to 50.

  By storing the hose connection port 46 at the lowermost position with respect to such a hose storage portion 36 and storing the hose 112 in the left direction as shown in the conventional example of FIG. When the portion 112a is fed into the upper portion of the hose storage portion, there is no hose portion (about a half turn around) that is removed from the hose storage portion, the hose 44 can be shortened accordingly, and the volume of the hose storage portion 36 is reduced. The housing 12 can be thinned.

  Further, since the hose winding start portion is sent to the lower side of the hose storage portion 36 by right-hand winding, the hose 44 does not slide against the hose bucket 42, and the conventional hose left-hand winding in FIG. Therefore, it is not necessary to protect against sliding and the structure can be simplified.

  Moreover, since the hose 44 connected to the hose connection port 46 is arranged along the lower inner surface of the housing, the decorative plate 14-1 can be seen when viewed from the front of the fire hydrant device to which the decorative frame is attached. As shown by the dotted line in FIG. 2, the hose 44 is hidden by the lower frame, and the lower space of the valve housing 38 is made empty and refreshed. If the hose 44 of the concealed part is disposed at least below the hinge 21 that is the pivot shaft of the hydrant door 18, the hose can be concealed when the hydrant door 18 is opened.

  Further, the nozzle 48 at the tip of the hose taken out after being stored in the hose storage part 36 as a right-hand winding is detachably attached to the nozzle holder 50 with the water discharge part facing downward, and since the water discharge part faces downward, The nozzle 48 can be opened with the water discharge part facing downward, and the water will not be discharged unless the fire hydrant valve opening / closing lever 64 provided on the fire hydrant valve is operated, but it is inexperienced for those operating in the event of a fire. The nozzle 48 can be removed with a sense of security because the water outlet is not suitable for the user, and there is a great merit in terms of safety.

  In addition, the nozzle 48 arranged with the water discharge portion facing downward can be easily grasped and removed with almost no sense of incongruity with either the right hand or the left hand.

  A valve storage unit 38 disposed on the right side of the hose storage unit 36 provided in the first housing 12-1 has a piping system extending from the hydrant connection port 51 to which the piping from the pump facility is connected to the hose connection port 46. A water supply valve 52, a fire hydrant valve, an automatic pressure regulating valve, an automatic drain valve, and a maintenance device 60 are provided. Among these, a nameplate 66 is provided corresponding to the fire hydrant valve opening / closing lever 64 provided in the fire hydrant valve, and a fire hydrant valve, an automatic pressure regulating valve, and an automatic drain valve are arranged on the back side of the nameplate 66 and are not operated during the water discharge operation. Is hiding.

  The piping system arranged in the vertical direction is arranged from the right edge of the first housing 12-1, and the piping system is made inconspicuous when the fire hydrant door 18 is opened by approaching the end of the door opening 16. The components in the door opening 16 are refreshed.

  FIG. 3 is a plan view showing the internal structure of FIG. In FIG. 3, the first housing 12-1 and the second housing 12-2 are fixed by bolts at the connection fixing portion 15. A bucket frame 40 is arranged in a horizontal L shape when viewed from above in the hose storage portion 36 of the first housing 12-1, and the hose 44 is wound inwardly by winding the hose 44 into the hose storage space formed between the inner wall and the housing. Stored in a state. In addition, two fire extinguishers 37 are accommodated in the fire extinguisher accommodating portion 39.

  FIG. 4 is a side view showing the internal structure of FIG. 1, and shows the structure of the valve housing part. In FIG. 4, the fire hydrant door 18 in the closed state of the front surface of the first housing 12-1 can be opened to the illustrated forward position around the hinge 21 by releasing the latch by a handle operation.

  In this case, since the hydrant door 18 is not provided with a nozzle or a hydrant valve opening / closing lever as in the prior art, the weight is reduced, and it is not always necessary to provide a damper that absorbs an impact at the time of opening. It is only necessary to provide a buffer mechanism 65 such as a damper mechanism or a spring mechanism.

  In the valve storage unit 38, a water supply valve 52, a fire hydrant valve 54, an automatic pressure regulating valve 56, and a maintenance device 60 are continuously arranged in the vertical direction. The automatic drain valve 58 is mounted on the secondary side of the fire hydrant valve 54.

  That is, the pipe from the fire hydrant connection port 51 is connected to the water supply valve 52 arranged in the horizontal direction, and is branched downward to be connected to the fire hydrant valve 54. The automatic drain valve 58 is provided on the secondary side of the fire hydrant valve 54. Connected to the automatic pressure regulating valve 56 and finally connected to the maintenance device 60.

  Thus, the fire hydrant valve 54, the automatic pressure regulating valve 56, the automatic drain valve 58, and the maintenance device 60 are continuously arranged in the vertical direction along the side wall of the housing 12-1, so that the installation space occupying the valve housing portion is reduced. As shown in FIG. 2, a sufficiently large empty space A can be secured between the hose storage portion 36 located on the left side.

  The maintenance device 60 is located at the lowermost part along with the vertical arrangement of the other valves, and is located at the lower corner of the case 12-1 by being provided in the vertical direction along the side wall of the case. Yes. The maintenance device 60 is provided with an inspection device insertion port 62, but in this embodiment, a free space between the valve storage portion 36 on the left side secured by the continuous arrangement of the valves in the vertical direction. It arrange | positions so that the inspection apparatus insertion port 62 may face the A. In other words, the inspection device insertion port 62 is arranged so as to face obliquely upward in the forward direction on the empty space A side.

  For this reason, even if the maintenance device 60 is arranged at a hidden position that is difficult to see from the outside, such as the lower corner of the housing 12-1, the inspection device insertion port 62 is arranged toward the open space side that becomes an empty space. Thus, the adapter attached to the tip of the hose of the inspection device at the time of inspection can be easily attached to the inspection device insertion port 62, and the flow path of the maintenance device 60 communicating in three directions is shut off at the hose connection port side. Can be limited to the side.

  A fire hydrant valve opening / closing lever 64 is directly attached to the fire hydrant valve 54. That is, when the fire hydrant valve opening / closing lever 64 is in the closed position in the upward direction shown in the figure, the fire hydrant valve 54 is closed. At this time, there is no fire water in the pipe and there is no pressure, so the automatic drain valve 58 is open. It is in.

  When the fire hydrant valve opening / closing lever 64 is operated to the open position that faces downward, the fire hydrant valve 54 is operated to the open position, the pressure rises in the pipe, and the automatic drain valve 58 is operated to the closed position. As a result, the fire-extinguishing water pressurized from the water supply connection port 51 is regulated to a predetermined pressure through the automatic pressure regulating valve 56 and then supplied to the hose 44 side.

  At the same time, a switch installed behind the fire hydrant valve opening / closing lever 64 is turned on, whereby a signal is sent to the pump equipment and the pump equipment is started. When stopping the water discharge, returning the hydrant valve opening / closing lever 64 to the original upward position closes the hydrant valve 54 and simultaneously turns off the switch to stop the operation of the pump equipment.

  As described above, in the present embodiment, the fire hydrant valve opening / closing lever 64 that is conventionally provided on the fire hydrant door and opens and closes the fire hydrant valve by wire connection is disposed on the housing 12 side and provided directly on the fire hydrant valve 54. Thus, the structure of the fire hydrant door 18 is simplified, and a reduction in thickness and weight can be achieved.

  In FIG. 2, the hose connection port 46 is provided in the immediate vicinity of the maintenance device 60. However, the present invention is not limited to this, and the piping is extended from the maintenance device 60 to the lower position of the hose storage unit 36, and the hose connection port 46 is connected to the hose storage unit. It may be provided on the 36 side. In this case, by arranging the pipe between the maintenance device 60 and the hose connection port 46 along the lower part of the housing, the pipe is not noticeable from the door opening 16 when the fire hydrant door 18 is opened, and is neatly arranged. Can be configured. Therefore, the empty space can be widened, and the fire extinguishing work can be easily performed by hiding as much as possible the components unnecessary for the fire fighting work.

  Further, the L-shaped pipe is connected to the lower side of the maintenance device 60. However, the present invention is not limited to this, and the maintenance device 60 is arranged as low as possible to the inner surface of the lower part of the housing. 46 may be provided so that the hose 44 is arranged along the lower part of the housing, and a maintenance device that is not used in the fire fighting operation can be hidden by the decorative board.

  FIG. 5 is an explanatory view showing the internal structure of another embodiment of the fire hydrant apparatus according to the present invention with the fire hydrant door removed, and FIG. 6 shows a side view thereof.

  In the embodiment of FIG. 5, the vertical connection structure of the valves in the valve storage portion 38 is disposed close to the hose storage portion 36 side so as to form an empty space on the side wall of the housing on the right side. I have to.

  As shown in FIG. 6, the vertical connection structure of the valves is such that the pipe from the fire hydrant connection port 51 is connected to the water supply valve 52 arranged in the horizontal direction and is branched downward to be connected to the fire hydrant valve 54. The automatic drain valve 58 is connected to the secondary side of the fire hydrant valve 54, is connected to the automatic pressure regulating valve 56, and is finally connected to the maintenance device 60.

  As described above, the fire hydrant valve 54, the automatic pressure regulating valve 56, the automatic drain valve 58, and the maintenance device 60 are continuously arranged in the vertical direction of the casing 12-1. As shown in FIG. 5, a sufficiently large empty space B can be ensured between the right side wall of the casing.

  The maintenance device 60 is positioned at the lowermost position along with the vertical arrangement of the other valves, and the maintenance device 60 is provided with an inspection device insertion port 62. The inspection device insertion port 62 is arranged so as to face the empty space B between the right side wall of the casing secured by the continuous arrangement in the vertical direction. That is, the inspection device insertion port 62 is arranged so as to face obliquely upward in the forward direction on the empty space B side. The maintenance device 60 may be arranged closer to the side surface of the hose storage portion 36 so as to widen the empty space B and arrange the maintenance device 60 more inconspicuously.

  For this reason, even if the maintenance device 60 is arranged at a hidden position that is difficult to see from the outside, that is, the lowermost part of the housing 12-1, the inspection device insertion port 62 is arranged toward the open space side that becomes the empty space B. Therefore, the adapter attached to the tip of the hose of the inspection device can be easily attached to the inspection device insertion port 62 at the time of inspection, and the flow path of the maintenance device 60 communicating in three directions is shut off at the hose connection port side and inspected. It can be limited to the device side. Other structures are the same as those of the embodiment of FIGS.

  In the above-described embodiment, after the necessary devices are assembled in the first housing 12-1 and the second housing 12-2 at the factory stage, they are connected and fixed, and finally the decorative plate 14-1, 14-2 is attached and completed, but when the sheet is transported to the installation site, the decorative plates 14-1 and 14-2 are removed and the first casing 12-1 and the second casing 12-2 are removed. It is also possible to remove the connection, transport the first housing 12-1, the second housing 12-2 and the decorative plate 14 to the installation site in a separated state, assemble at the site, and install them at the required place on the tunnel wall surface. is there.

  In this case, since the first casing 12-1 has the largest weight, two suspension rings 25 are provided on the upper portion of the first casing 12-1, so that it can be moved and assembled at the factory assembly stage. In the case of on-site transportation in the separated state, a hook or the like is hung on the suspension ring 25 so that it can be suspended and transported by a crane or the like.

  In the above embodiment, the case where the casing is divided into the fire hydrant side and the fire extinguisher side is taken as an example, but the present invention can be similarly applied to an integrated casing structure.

Further, the present invention includes appropriate modifications that do not impair the object and advantages thereof, and is not limited by the numerical values shown in the above embodiments.

Explanatory drawing which showed embodiment of the fire hydrant apparatus by this invention from the front 1 is a front view showing the internal structure of the main body with the door side removed. Plan view showing the internal structure of FIG. Side view showing the internal structure of FIG. The front view which removed the door side as other embodiment of the fire hydrant apparatus by this invention, and showed the main body internal structure Side view showing the internal structure of FIG. Front view showing the internal structure of a conventional fire hydrant device with the door removed Plan view showing the internal structure with the door of a conventional fire hydrant device opened Side view showing the internal structure of a conventional fire hydrant device with the door open

Explanation of symbols

10: Fire hydrant device 11: Stand 12-1: First housing 12-2: Second housing 14-1, 14-2: Decorative plate 15: Connection fixing portion 16, 17: Door opening 20, 34: Handle 21, 23: Hinge 22: Maintenance door 24: Notification device door 25: Suspension ring 26: Red indicator lamp 27: Stay 28: Transmitter 30: Response lamp 31: Telephone jack 32: Fire extinguisher door 36: Hose storage section 37: Fire extinguisher 38: Valve storage unit 39: Fire extinguisher storage unit 40: Bucket frame 42: Hose guide 44: Hose 45: Frame holder 46: Hose connection port 48: Nozzle 50: Nozzle holder 51: Piping connection port 52: Water supply valve 54: Fire hydrant valve 56: Automatic pressure regulating valve 58: Automatic drain valve 60: Maintenance device 62: Inspection device insertion port 64: Fire hydrant valve opening / closing lever 66: Name plate

Claims (4)

A housing formed with a valve housing part next to the hose housing part;
A fire hydrant door that is openably and closably attached to a door opening of the housing corresponding to the hose storage portion and the valve storage portion;
Valves including a fire hydrant valve and a maintenance device that are disposed in the pipes that are arranged in the valve storage unit and that supply fire-fighting water to the hose connection port;
A hose housed inside the hose housing part,
A nozzle attached to the tip of the hose;
In a fire hydrant device equipped with
The valves are connected in the vertical direction, the maintenance device is arranged at the bottom, and the inspection device insertion port provided in the maintenance device is arranged obliquely toward the side of the door opening where there is a lot of empty space. A fire hydrant device characterized by that.
The fire hydrant apparatus according to claim 1, wherein the maintenance devices are arranged in a lower corner of the casing by connecting the valves in a vertical direction along a side wall of the casing, and an inspection device insertion port of the maintenance device is arranged at a center side. A fire hydrant device, which is arranged obliquely toward an empty space in the room.
The fire hydrant apparatus according to claim 1, wherein the valves are connected in a vertical direction on the side of the hose storage portion, the maintenance device is disposed at a lowermost portion, and an inspection device insertion port of the maintenance device is provided on a side wall side. A fire hydrant device that is arranged obliquely toward an empty space.
  2. The fire hydrant apparatus according to claim 1, wherein a pipe or the hose extending from the maintenance device to the hose storage portion is disposed below a rotation shaft height of the fire hydrant door.

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