JP7101473B2 - Fire hydrant device - Google Patents

Description

The present invention relates to a fire hydrant device installed in a tunnel.

The fire hydrant device installed in the tunnel is provided with a fire hydrant door on the front surface of the housing, which opens and closes by rotating the outlet of the fire extinguishing hose (see Patent Document 1).

Japanese Unexamined Patent Publication No. 2005-318972

The fire hydrant door is operated by an operator to rotate and open and close, and it is preferable that the moment when the door rotates is small.

Further, a damper for controlling the rotation operation of the door is usually provided between the fire hydrant door and the drawer port, and the damper is a type in which the fire hydrant door is supported by an arm-shaped support portion. Is used (see Patent Document 1). In recent years, the thickness of the housing has been reduced, but the conventional type of damper is housed inside the housing including the arm-shaped support part when the door is closed. Requires space for storing dampers. That is, the conventionally used type of damper is an obstacle to the thinning of the housing.

In view of the above circumstances, it is an object of the present invention to make it possible to reduce the moment of a fire hydrant door in a fire hydrant device provided with a fire hydrant door that opens and closes by rotating the outlet of a fire hydrant hose on the front surface of the housing. And. The purpose is to make the housing thinner while providing a damper.

In the present invention, the first invention (the invention according to claim 1 and its dependents) is rotatably attached to the outlet of a fire extinguishing hose provided on the front surface of the housing by a hinge to provide the outlet. In a fire hydrant device including a fire hydrant door that rotates and opens and closes, the fire hydrant door has a ridge portion that protrudes inward at the end edge portion on the side close to the hinge, and a component is attached to the ridge portion. It has a position , so that when the door is opened, it is possible to delay the timing at which the load of the component attached to the mounting position of the component changes from the state of acting in the closing direction to the state of acting in the door opening direction. It is a fire hydrant device characterized by.

In the first invention, the hinge can be a damper hinge having a damper for controlling the rotational operation. Further, the component attached to the attachment position of the component can be a nozzle holder for holding the fire extinguishing nozzle.

Further, in the present invention, the second invention includes a fire hydrant door that is rotatably attached to the outlet of a fire extinguishing hose provided on the front surface of the housing by a hinge and opens and closes by rotating the outlet. In the fire hydrant device, as a separate body from the fire hydrant door, the fire hydrant door is rotatably attached to the outlet by a hinge different from the hinge for attaching the fire hydrant door, and the fire hydrant door is driven to rotate. Further, the driven rotating portion is provided so as to rotate, and the driven rotating portion is a fire hydrant device characterized by having a mounting position for parts.

In the second invention, the fire hydrant door may be provided with a hooking portion that is driven to rotate the driven rotating portion when the fire hydrant door is rotated in the opening direction. Further, the hooking portion may be pulled so as to rotate the driven portion after the fire hydrant door rotates in the opening direction. Further, both the hinge for attaching the fire hydrant door and the hinge for attaching the driven rotating portion can be a damper hinge having a damper for controlling the rotation operation. Further, the component attached to the attachment position of the component can be a nozzle holder for holding the fire extinguishing nozzle.

According to the first aspect of the present invention, by having the component mounting position on the side close to the hinge of the fire hydrant door, the position of the center of gravity of the fire hydrant door including the mounted component can be made close to the hinge. .. Thereby, the moment when the fire hydrant door rotates can be reduced.

Further, according to the second invention, since the driven rotating portion has the mounting position of the component, the load of the mounted component can be distributed to the driven rotating portion side, and the load of the fire hydrant door can be reduced. Can be done. Thereby, the moment when the fire hydrant door rotates can be reduced.

Therefore, according to both the first and second inventions, the present invention can reduce the moment of the fire hydrant door.

Here, in both the first and second inventions, the moment of the fire hydrant door can be reduced, so that the damper that controls the rotational operation of the fire hydrant door can be sufficiently operated. For example, if the fire hydrant door is a type that opens by rotating downward (forward tilting door), the fire hydrant door can be opened slowly enough, and the fire hydrant door can be opened with a sufficiently light force. It can be closed.

Further, in the first invention, the hinge for attaching the fire extinguishing door is a damper hinge having a damper for controlling the rotation operation, and in the second invention, the hinge for attaching the fire extinguishing door and the driven rotating portion are used. By using both the mounting hinges as damper hinges having dampers for controlling the rotational operation, it is possible to eliminate the need to provide a space for storing the damper in the housing in any of the inventions.

Therefore, according to both the first and second inventions, the present invention can reduce the thickness of the housing while providing the damper.

Further, in the first invention, the fire hydrant door has a ridge portion protruding inward in the door at the end edge portion on the side close to the hinge, and the ridge portion has a component mounting position. Therefore, for example, when the fire hydrant door is a forward tilting door, when the fire hydrant door is opened, the timing at which the load of the attached parts changes from the state in which the load acts in the closing direction to the state in which the load acts in the opening direction can be delayed. can. This also makes it possible to reduce the moment when the fire hydrant door rotates.

It is a front view of the fire hydrant device in the 1st Embodiment of this invention, and shows the state which the fire hydrant door is fully opened (the state which is opened approximately 180 degrees). It is an enlarged side view of the fire hydrant device of the same as above. It is an enlarged top view of the main part of the fire hydrant device as above (the upper part of the housing is cut out), and shows a state in which the fire hydrant door is half open (a state in which it is opened approximately 90 degrees). It is explanatory drawing which showed the state at the time of opening and closing of the fire hydrant door in the above-mentioned fire hydrant device, and is the state where (a) is fully closed, (b) is half open, and (c) is fully open. It shows each state. It is a front view of the fire hydrant device in the 2nd Embodiment of this invention, and is the figure corresponding to FIG. It is an enlarged view of the main part of FIG. It is explanatory drawing which showed the state at the time of opening the fire hydrant door of the fire extinguishing smoke device of the same above, and the driven rotation part, and is the figure corresponding to FIG.

An example of the embodiment of the present invention is applied to a fire hydrant device having a type of fire hydrant door (forward tilting door) that rotates downward to open and close as a fire hydrant door that opens and closes by rotating the outlet of a fire hose. The first embodiment corresponding to the first invention and the second embodiment corresponding to the second invention will be described separately with reference to FIGS. 1 to 7. The present invention can also be applied to a fire hydrant device having a type of fire hydrant door (flip-up door) that rotates upward and opens.

[First Embodiment]
First, the fire hydrant device 1-1 of the first embodiment will be described with reference to FIGS. 1 to 4.

[overall structure]
As shown in FIGS. 1 to 3, the fire hydrant device 1 has a housing 2 including a hose storage portion 9 or the like in which a fire extinguishing hose 6 is housed. A front panel 2a is provided on the front surface of the housing 2, and the front panel 2a includes a drawer 3 for pulling out the fire extinguishing hose 6 to the outside, a fire hydrant door 4 for opening and closing the drawer 3, and the like. Is provided.

Although not shown, the fire hydrant device 1 is installed in a tunnel. Specifically, the housing 2 is housed in a box punch formed on the inner wall of the tunnel, hung on the inner wall, placed on the inspection road beside the road, embedded in the inspection road, and the like. It is installed in the tunnel.

[Fire hydrant door]
The fire hydrant door 4 is rotatably attached to the drawer port 3 by a hinge 5, and opens and closes the drawer port 3 by rotating around the rotation shaft 5a of the hinge 5. In the present embodiment, as the fire extinguishing plug door 4, the lower end portion 4d of the lower end portion 4d when the door is closed can be rotated by a hinge 5 having a rotation shaft 5a along the lateral direction (width direction) of the housing 2. It uses a forward tilting door that is attached to the edge 3b and rotates downward to open the outlet 3. Further, the one having a rotation angle of about 180 degrees when fully opened is used. When the fire hydrant door 4 is fully opened, the fire hydrant door 4 substantially hangs downward from the lower end edge 3b of the drawer opening 3 and rotates until the back surface 4c is in a state of substantially facing the front direction.

Various parts are attached to the back surface 4c side of the fire hydrant door 4. In the case of the present embodiment, a lever mechanism portion having a nozzle holder 6b for detachably holding a fire extinguishing nozzle 6a provided at the tip of a fire extinguishing hose 6 and an operation lever 7a for opening and closing a fire hydrant valve (not shown). 7 and a latch mechanism portion 8 having a latch 8a for locking / unlocking the closed state of the fire hydrant door 4 (the operation portion is provided on the door surface side) and the like are attached.

At least a part of the parts attached to the back surface 4c side of the fire hydrant door 4 is located near the hinge 5 (intermediate position between the end edge portion 4d on the hinge 5 side and the end edge portion 4e on the opposite side). It is attached to the position on the hinge 5 side). In the case of the present embodiment, the nozzle holder 6b is attached to such a position, and the fire extinguishing nozzle 6a is attached and held to the nozzle holder 6b at all times.

According to the fire hydrant device 1-1 of the present embodiment, at least a part of the parts attached to the fire hydrant door 4 is attached to a position close to the hinge 5, so that the position of the center of gravity of the fire hydrant door 4 including the attached parts can be determined. It can be brought closer to the hinge 5. Thereby, the moment when the fire hydrant door 4 rotates can be reduced. Therefore, the damper that controls the rotational operation of the fire hydrant door 4 (details will be described later assuming that the hinge 5 is built-in) can be sufficiently operated, and the fire hydrant door 4 is a forward tilting door. In the case of the form, the fire hydrant door 4 can be opened sufficiently slowly, and the fire hydrant door 4 can be closed with a sufficiently light force.

Further, the fire hydrant door 4 in the present embodiment will be described in detail.

Specifically, the fire hydrant door 4 is made of a metal flat plate, and has edge portions 4d, 4e, 4f, and 4g formed on its four sides so as to bend inward toward the door. .. Among these edge portions, a protruding edge portion 4h formed so as to continuously project toward the inside of the door is provided on the lower end edge portion 4d located on the hinge 5 side (when the door is closed). .. Then, while the hinge 5 is attached to the outer surface of the edge portion 4d, the nozzle holder 6b holding the fire extinguishing nozzle 6a on the inner surface (the side facing the back surface 4c) of the ridge portion 4h is attached to the hinge 5. As described above, the fire extinguishing nozzle 6a is detachably attached to and held on the nozzle holder 6b at all times.

In the present embodiment, this mounting structure allows the fire extinguishing nozzle 6a to be mounted on the fire hydrant door 4 via the nozzle holder 6b in a state where the fire extinguishing nozzle 6a is always as close as possible to the hinge 5.

In the present embodiment, the edge portion 4d and the ridge portion 4h are continuously integrated, but they may be connected by a fastening member such as a bolt as a separate body.

Further, the edge portion 4d is formed so as to bend inward of the fire extinguishing plug door 4 by approximately 90 degrees with respect to the door surface, and the protruding edge portion 4h formed continuously on the edge portion 4d. Is also formed so as to bend approximately 90 degrees with respect to the door surface, and the surface to which the nozzle holder 6b is attached is located at a position of approximately 90 degrees with respect to the door surface of the fire extinguisher door 4. Assuming that the ridge portion 4h is provided by itself or together with the edge portion 4d so as to bend at an angle larger than 90 degrees, the surface where the nozzle holder 6b is attached is set to 90 with respect to the door surface of the fire extinguisher door 4. It may be located at an angle larger than the degree.

Here, in the present embodiment, the shapes of the left and right end edge portions 4f and 4g of the fire extinguishing plug door 4 are all on the side (rotation) of the end edge portion 4d whose width (length in the thickness direction of the door) is close to the hinge 5. It becomes smaller toward the side of the edge portion 4e (rotational displacement side) far from the hinge 5 opposite to the center side (see the shape of the edge portion 4g in FIG. 2). Due to this shape, the position of the center of gravity of the door itself of the fire hydrant door 4 (the door itself excluding the parts to be attached) can be brought closer to the hinge 5. That is, even with this shape, the moment of the fire hydrant door 4 can be reduced.

[Nozzle holder]
The nozzle holder 6b includes a grip portion 6c that grips and holds the fire extinguishing nozzle 6a, and a strut portion 6d that is provided with the grip portion 6c at the tip and a mounting portion to the ridge portion 4h on the base end side. Consists of. In the nozzle holder 6b, the support column portion 6d is provided upright on the surface of the ridge portion 4h facing the door back surface 4c by the attachment portion on the base end side, and the grip portion 6c on the tip end side is provided. The fire extinguishing nozzle 6a held by the fire extinguishing nozzle 6a is provided so as to be positioned laterally on the back surface 4c of the door along the width direction of the fire hydrant door 4. Although not shown, the mounting portion provided on the support column portion 6d may be a substantially L-shaped bent portion, and the bent portion may be mounted on the ridge portion 4h by a fastening member such as a bolt. In the case of the present embodiment, the number of nozzle holders 6b is set to two side by side in the width direction of the fire hydrant door 4, but the number can be changed as appropriate.

[Hinge (for fire hydrant door)]
As shown in FIG. 2, the hinge 5 has two rotating connecting portions 5b and 5c that rotate around the rotating shaft 5a, and one rotating connecting portion 5b is an end edge portion of the fire hydrant door 4. Along with being connected to 4d, the other rotary connecting portion 5c is connected to the lower end edge 3b of the outlet 3, and the fire hydrant door 4 is provided so as to be a forward tilting door that rotates downward to open the outlet 3. Has been done. Further, in the present embodiment, the hinge 5 uses a damper hinge having a built-in damper that controls the rotational operation of the fire hydrant door 4. By using this damper hinge, it is possible to eliminate the need to provide a space for accommodating the damper in the housing 2, and while providing a damper for controlling the rotational operation of the fire hydrant door 4, the housing 4 is made thinner. You can do it. In the case of the present embodiment, the number of hinges 5 is two arranged side by side in the width direction of the fire hydrant door 4, but the number can be changed as appropriate.

Here, the operation when the fire hydrant door 4 of the fire hydrant device 1-1 of the present embodiment is opened and closed will be described.

FIG. 4 shows the operation of opening and closing the fire hydrant door 4 in three stages, in which (a) is a fully closed state, (b) is a half open state, and (c) is a fully open state. There is. The fire extinguishing nozzle 6a held by the nozzle holder 6b is not shown.

The nozzle holder 6b is displaced as shown in (a) to (c) of the figure when the fire hydrant door 4 is opened and closed, but the positional relationship with the hinge 5 does not change at any stage. The fire extinguishing nozzle 6a is attached to such a nozzle holder 6b, and when the fire hydrant door 4 is opened and closed, the fire extinguishing nozzle 6a is always maintained at a position close to the hinge 5 and displaced. As a result, when the fire hydrant door 4 is opened and closed, the position of the center of gravity including the nozzle holder 6b and the fire extinguishing nozzle 6a held therein is always rotated in a state of being close to the hinge 5, so that the moment is small. Further, the load of the nozzle holder 6b and the fire extinguishing nozzle 6a held by the nozzle holder 6b acts in the direction of closing the fire hydrant door 4 at the position (a), but the fire hydrant door 4 rotates to the position (b). It gradually changes to act in the direction of opening the fire hydrant door 4, but since the mounting position is provided on the ridge portion 4h, it is compared with the case where it is mounted on the back surface 4c of the fire hydrant door 4. Since the change is slowed down, the moment of the fire hydrant door 4 is also small. Therefore, the position of the gripping portion 6c of the nozzle holder 6b is the same as that of the case where the nozzle holder 6b is attached to the back surface 4c of the fire hydrant door 4, and the position where the fire extinguishing nozzle 6a is held is the same. However, the moment of the fire hydrant door 4 can be reduced, and the rotation speed of the fire hydrant door 4 can be slowed down. The moment of the fire hydrant door 4 is also small because the distance between the position on the ridge portion 4h to which the nozzle holder 6b is attached and the hinge 5 is short.

[Second Embodiment]
Next, the fire hydrant device 1-2 of the second embodiment will be described with reference to FIGS. 5 to 7. It should be noted that only the components different from the above-mentioned fire hydrant device 1-1 will be described, and the same components are designated by the same drawing reference numerals and the description thereof will be omitted.

[Driven rotating part]
As shown in FIGS. 5 and 6, the fire hydrant device 1-2 includes a driven rotating portion 10 in which a component mounting position is provided in place of the ridge portion 4h in the fire hydrant device 1-1. ..

The driven rotating portion 10 is rotatably attached to the outlet 3 by a hinge 11 different from the hinge 5 for the fire hydrant door as a separate body from the fire hydrant door 4, and the fire hydrant door 4 is attached. It is provided to rotate in accordance with the rotation. Then, at least a part of the parts attached to the back surface 4c side of the fire hydrant door 4 is attached to the driven rotating portion 10 instead of the ridge portion 4h in the fire hydrant device 1-1.

According to the fire hydrant device 1-2 of the present embodiment, by providing the driven rotating portion 10, the load of the attached parts can be distributed to the driven rotating portion 10 side, and the load of the fire hydrant door 4 can be distributed. It can be made smaller. Thereby, the moment when the fire hydrant door 4 rotates can be reduced.

In the case of the present embodiment, the driven rotating portion 10 is rotated by the hinge 11 as a standing piece located at a position where a part of the protruding edge portion 4h inside the door of the fire hydrant door 4 is cut out. It is movably attached to the drawer 3. A nozzle holder 6b for holding the fire extinguishing nozzle 6a is attached to the driven rotating portion 10 in close proximity to the hinge 11 on the surface of the fire hydrant door 4 facing the back surface 4c, as in the case of the fire hydrant device 1-1. A fire extinguishing nozzle 6a is attached to and held by the nozzle holder 6b at all times.

[Hinge (for driven rotating part)]
The hinge 11 has two rotation connecting portions (not shown) that rotate around a rotation axis located on the same axis as the rotation shaft 5a of the hinge 5, and one rotation connection portion is a driven rotation portion. In addition to being connected to 10, the other rotating connecting portion is connected to the lower end edge 3b of the outlet 3, and the driven rotating portion 10 is provided so as to be rotatable in the same direction as the fire extinguisher door 4.

As the hinge 11, a damper hinge having a built-in damper for controlling the rotational operation of the driven rotating portion 10 is used as in the hinge 5, and it is not necessary to provide a space for accommodating the damper in the housing 2. Is supposed to be possible.

[Hook part]
The fire hydrant door 4 is provided with a hooking portion 12 for rotating the driven rotating portion 10 by following the rotation in the opening direction of the fire hydrant door 4.

In the present embodiment, the hooking portion 12 is from the support column portion 12a whose base end side is fixed to the back surface (the surface opposite to the back surface 4c side) of the protruding edge portion 4h of the fire hydrant door 4 and the tip end side of the support column portion 12a. It has a contact portion 12b that extends laterally and is provided so that the back surface of the driven rotating portion 10 (the surface opposite to the side on which the nozzle holder 6b is attached) is located in the rotation locus. Is formed in a substantially L-shape.

When the fire extinguishing door 4 rotates in the door opening direction, the hooking portion 12 makes contact with the back surface of the driven rotating portion 10 from the rear so that the driven rotating portion 10 is hooked from the rear and rotated forward. However, in the case of the present embodiment, the contact portion 12b is separated from the back surface of the driven rotating portion 10 when the fire extinguishing plug door 4 is fully closed, and the fire extinguishing plug door 4 is in the middle of rotation in the opening direction. The contact portion 12b is supposed to come into contact with the back surface of the driven rotating portion 10. That is, when the fire hydrant door 4 rotates from the fully closed state to the door opening direction, it operates so as to rotate the driven rotating portion 10 behind the rotation. By changing the angular distance between the contact portion 12b and the back surface of the driven rotating portion 10 when the fire hydrant door 4 is fully closed, the timing at which the driven rotating portion 10 is rotated behind the fire hydrant door 4 can be changed. ..

The hooking portion 12 may be any as long as it can be driven by the rotation of the fire hydrant door 4 in the opening direction to rotate the driven rotating portion 10, and is not limited to the above configuration. .. That is, various configurations can be used as long as the driven rotating portion 10 can be rotated by following the rotation of the fire hydrant door 4 in the opening direction.

Here, the operation at the time of opening the fire hydrant door 4 in the fire hydrant device 1-2 of the present embodiment will be described.

FIG. 7 shows the operation of the fire hydrant door 4 at the time of opening in three stages, in which (a) is a fully closed state, (b) is a half open state, and (c) is a fully open state. ing. As in FIG. 4, the illustration of the fire extinguishing nozzle 6a held by the nozzle holder 6b is omitted.

In the case of the present embodiment, the driven rotating portion 10 rotates in accordance with the rotation of the fire hydrant door 4 in the opening direction. A nozzle holder 6b for holding the fire extinguishing nozzle 6a is attached to the driven rotating portion 10, and the load thereof is distributed to the driven rotating portion 10. As a result, the moment of the fire hydrant door 4 can be reduced. Further, when the fire extinguishing plug door 4 rotates in the opening direction from the position (a), only the fire extinguishing plug door 4 rotates first, but in the middle of the rotation, the contact portion 12b of the hooking portion 12 moves to the back surface of the driven rotating portion 10. The driven rotating portion 10 is hooked and pulled in the opening direction of the fire extinguishing plug door 4 to rotate. At that time, from around the position (b) where the gripping portion 6c of the nozzle holder 6b holding the fire extinguishing nozzle 6a exceeds directly above the rotation axis of the hinge 11, the load of the driven rotating portion 10 (nozzle holder 6b and it). The load of the held fire extinguishing nozzle 6a is included.) Changes from the side that acts to rotate the driven rotating portion 10 in the closing direction of the fire extinguishing plug door 4 to the side that acts to rotate in the opening direction. Until there is such a change, the load of the driven rotating portion 10 pulled by the hooking portion 12 acts to reduce the moment with respect to the rotation of the fire extinguishing plug door 4 in the opening direction. That is, by distributing the load of the nozzle holder 6b and the fire extinguishing nozzle 6a to the driven rotating portion 10, the moment of the fire hydrant door 4 can be reduced, and the load of the driven rotating portion 10 is the fire hydrant. While acting to rotate the driven rotating portion 10 in the closing direction of the door 4, the moment of the fire hydrant door 4 can be reduced by the load of the driven rotating portion 10. Then, after the load of the driven rotating portion 10 changes to the side that acts to rotate the driven rotating portion 10 in the opening direction of the fire extinguishing plug door 4, the load causes the fire extinguishing plug door in the opening direction of the fire extinguishing plug door 4. Following the rotation of 4, it rotates to the position (c). In the case of the present embodiment, when the fire extinguishing plug door 4 rotates in the opening direction, the driven rotating portion 10 rotates behind the rotation of the fire extinguishing plug door 4, so that the load of the driven rotating portion 10 is applied. It is also possible to delay the timing of changing from the side that acts to rotate the driven rotating portion 10 in the closing direction of the fire extinguisher door 4 to the side that acts to rotate the driven rotating portion 10 in the door opening direction. It is also possible to lengthen the time during which the moment of the fire extinguishing door 4 can be reduced by the load of.

Although the embodiment of the present invention has been described separately for the first embodiment and the second embodiment, the present invention is not limited to the above embodiment and various modifications can be made. ..

For example, in any of the embodiments, the fire hydrant door 4 may rotate approximately 90 degrees instead of rotating approximately 180 degrees between the fully closed position and the fully open position. Further, the fire hydrant door 4 may be a type of fire hydrant door (flip-up type door) that rotates upward to open. In that case, the upper end edge portion 4e of the fire hydrant door 4 when the door is closed is rotatably attached to the upper end edge 3a of the drawer port 3 by a hinge member having a rotation axis along the lateral direction (width direction) of the housing 2. Become. Further, the component attached to the position closer to the hinge 5 is not limited to the nozzle holder 6b, and may be, for example, a lever mechanism portion 7, a latch mechanism portion 8, or the like.

1-1, 1-2: Fire hydrant device 2: Housing 2a: Front panel 3: Drawer port 3a: Upper edge 3b: Lower edge 4: Fire hydrant door 4c: Back surface 4d-4g: Edge edge 4h: Ridge 5 : Hinge (for fire hydrant door)
5a: Rotating shaft 5b-5c: Rotating connecting part 6: Fire extinguishing hose
6a: Fire extinguishing nozzle 6b: Nozzle holder 6c: Grip part 6d: Strut part 7: Lever mechanism part 7a: Operation lever 8: Latch mechanism part 8a: Latch 9: Hose storage part 10: Driven rotation part 11: Hinge 12 : Hooking part 12a: Strut part 12b: Contact part

Claims (2)

In a fire hydrant device provided with a fire hydrant door that is rotatably attached to the outlet of a fire extinguishing hose provided on the front surface of a housing by a hinge and opens and closes by rotating the outlet.
The fire hydrant door has a ridge portion that protrudes inwardly at the end edge portion on the side close to the hinge, and the ridge portion has a mounting position for parts , whereby when the door is opened, the door is opened. A fire hydrant device characterized in that the timing at which the load of a component mounted at the mounting position of the component changes from a state in which the load acts in the door closing direction to a state in which the load acts in the door opening direction can be delayed. The fire hydrant device according to claim 1, wherein the component mounted at the mounting position of the component is a nozzle holder that holds a fire extinguishing nozzle.

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