Fire hydrant apparatus and stand

Abstract

To improve workability by simply and easily performing horizontal installation when the installation road surface of a hydrant device is inclined.SOLUTION: A fire hydrant device 10 is fixed on a frame 28 installed in a watchman passage 34 of a tunnel. A frame 28 is composed of a first frame 30 and a second frame 32 installed along the road surface of a watchman passage, and the second frame 32 is composed of a fixed frame 80, a movable frame 82 and an angle setting mechanism. The fixed frame 80 is installed on the first frame 30, and one end side of the movable frame 82 in the longitudinal direction is supported by the fixed frame 80. The angle setting mechanism sets and fixes a rotation angle of the movable frame 82 with respect to the fixed frame 80 so that the movable frame 82 has a predetermined inclination in a state where the fixed frame 80 supporting the movable frame 82 is disposed on the upper side in the inclination direction of the road surface inclination when there is the road surface inclination in the watchman passage 34.SELECTED DRAWING: Figure 6

Description

[Technical Field]

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

[0002] Conventionally, fire hydrants have been installed as emergency tunnel equipment in tunnels on expressways, motorways, and the like. A fire hydrant device has a hose with a nozzle attached to the end and valves stored in a fire hydrant storage section of a housing equipped with a fire hydrant door, and a fire extinguisher storage section equipped with a fire extinguisher door stores, for example, two fire extinguishers. Furthermore, fire hydrant devices are generally installed by embedding them into the tunnel wall, cutting out boxes, at intervals of, for example, 50 meters along the length of the tunnel (Patent Document 1).

[0003] However, if it is not possible to create an embedded section (recess) for the fire hydrant device in the tunnel wall (wall of the tunnel body) by cutting out a box or the like, the fire hydrant device must be installed in an exposed state in the guard passage.

[0004] In such cases, a mounting structure has been proposed for wall-mounting a fire hydrant device on the tunnel wall, and this mounting structure is composed of a main support part that is fixed to the wall surface and a position-maintaining member that maintains the position of the fire hydrant device (Patent Document 2).

[0005] It is also possible to use a so-called stationary structure in which the fire hydrant device is attached and fixed in an exposed state on a stand installed above the guard's walkway. [Prior art documents] [Patent documents]

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

[0007] Incidentally, when a fire hydrant device is installed as a stationary structure on a stand in the guard passage, the guard passage also has a road surface slope similar to the road surface slope in the longitudinal direction of the tunnel that runs through the tunnel, and when the road surface slope is small, the fire hydrant device may be installed directly along the road surface slope, but in some cases the slope must be adjusted to install the fire hydrant horizontally.The road surface slope of the road and the guard passage is generally expressed as the "road gradient (longitudinal gradient)" and is expressed as a percentage (%) of the height relative to the horizontal distance, but in the following explanation it will be expressed as an angle of slope (°).

[0008] An object of the present invention is to provide a fire hydrant device and a stand that can be simply and easily installed horizontally when the installation road surface is inclined, thereby improving workability. [Means for solving the problem]

[0009] (First invention: Fire hydrant device) The present invention provides a fire hydrant device in which a housing is attached and fixed to a stand installed on the road surface of a watchman's passage provided along the wall surface in the longitudinal direction of a tunnel having a road, The stand is a fixed platform installed along the road surface in the longitudinal direction of the guard passage; a movable base having a housing attached and fixed to an upper end surface, one longitudinal end of which is pivotally supported on one end of a fixed base, and the other longitudinal end of which is rotatable in a vertical direction relative to the other end of the fixed base; an angle setting mechanism that sets and fixes the rotation angle of the movable stand relative to the fixed stand so that the movable stand is horizontal or inclined in accordance with the inclination of the road surface when one end of the fixed stand supporting the movable stand is positioned above the inclination of the road surface in the case where the monitor passage on which the fixed stand is installed has an inclination; The present invention is characterized by the following.

[0010] (Adjusting the rotation angle to make it horizontal relative to the road surface slope) The angle setting mechanism sets and fixes the rotation angle to the inclination angle of the road surface or an angle close to that inclination angle.

[0011] (Angle setting mechanism for the stand) The fixed base is a box-frame member that is long in the longitudinal direction and has an upward opening, The movable base is a box-shaped member that is long in the longitudinal direction and opens downward, and is disposed inside the fixed base; The angle setting mechanism is A shaft member is detachably inserted through each of one end side and the other end side of the fixed base and the movable base in the longitudinal direction, and the rotation angle is fixed to zero, With either one of the shaft members arranged on one end side or the other end side removed and the movable base pivotally supported around the other shaft member, the rotation angle of the movable base relative to the fixed base is set and fixed so that the movable base is horizontal or inclined in accordance with the road surface inclination.

[0012] (First angle setting mechanism) The first angle setting mechanism includes: an angle setting member having a plurality of through holes arranged corresponding to a plurality of different rotation angles, the angle setting member being fixed to each of one end side and the other end side of the fixed base in the longitudinal direction; a plurality of angle setting holes that are opened at one end side and the other end side of the fixed frame and are coaxial with the plurality of through holes of the angle setting member; a plurality of through holes opened at one end side and the other end side in the longitudinal direction of the movable base corresponding to the plurality of through holes of the angle setting member; Equipped with With the movable base in a rotatable state, an axial member that has been removed through the corresponding angle setting hole of the fixed base is inserted into a through hole of the movable base that is aligned to correspond to one of the through holes of the angle setting member, and the rotation angle of the movable base relative to the fixed base is set and fixed so that the movable base is horizontal or inclined corresponding to the road surface inclination.

[0013] (Second angle setting mechanism) The second angle setting mechanism is The device has a plurality of building block members that can be assembled and disassembled, with a plurality of inclined surfaces formed in multiple stages corresponding to a plurality of different rotation angles, and is equipped with an angle setting member that sets one of the rotation angles by fixing one or more selected building block members in an assembled state to either one end side or the other end side of the longitudinal direction of the fixed frame, When the movable base is free to rotate, the movable base abuts against the inclined surface of the angle setting member, and the rotation angle of the movable base relative to the fixed base is set and fixed so that the movable base is horizontal or inclined corresponding to the road surface inclination.

[0014] (Third angle setting mechanism) The third angle setting mechanism is a plurality of types of angle setting members each having an inclined surface corresponding to a plurality of different rotation angles; One of the inclination angles is set by selecting and fixing one of a plurality of types of angle setting members to one end or the other end of the fixed base in the longitudinal direction, With the movable base in a rotatable state, the movable base abuts against the inclined surface of the selected angle setting member, and the rotation angle of the movable base relative to the fixed base is set and fixed so that the movable base is horizontal or inclined corresponding to the road surface inclination.

[0015] (Fourth angle setting mechanism) The fourth angle setting mechanism is one or more fixed block members each having a first inclined surface with a predetermined inclination angle and fixed to one end side and the other end side of the fixed frame in the longitudinal direction; a movable block member disposed adjacent to the fixed block member and having a second inclined surface inclined opposite to the first inclined surface, the movable block member being movable in the longitudinal direction; a shaft member disposed in a V-shaped groove formed at an intersection of the first inclined surface and the second inclined surface, and supporting the movable base; Equipped with When the movable base is free to rotate, the shaft member arranged in the V-groove is moved in an inclined direction along the first inclined surface in response to the longitudinal movement of the movable block member, thereby setting and fixing the rotation angle of the movable base relative to the fixed base so that the movable base is horizontal or inclined corresponding to the road surface inclination.

[0016] (A mount with an angle setting mechanism on only one side of the mount) The angle setting mechanism is provided at only one end or the other end in the longitudinal direction of the pedestal composed of the fixed pedestal and the movable pedestal, When the movable base is installed with one end side and the other end side swapped in the longitudinal direction, mounting holes are formed in the movable base so that the mounting holes of the movable base are aligned with the mounting holes of the housing before and after the swap.

[0017] (Second invention: Fire hydrant device stand) The present invention provides a stand for attaching and fixing, to a road surface, a housing of a fire hydrant device installed in a watchman's passage provided along the wall surface in the longitudinal direction of a tunnel having a road, a fixed platform installed along the road surface in the longitudinal direction of the guard passage; a movable base having a housing attached and fixed to an upper end surface thereof, one longitudinal end of which is pivotally supported on one end of a fixed base, and the other longitudinal end of which is rotatable in a vertical direction relative to the other end of the fixed base; an angle setting mechanism that sets and fixes the rotation angle of the movable stand relative to the fixed stand so that the movable stand is horizontal or inclined in accordance with the inclination of the road surface when one end of the fixed stand supporting the movable stand is positioned above the inclination of the road surface in the case where the monitor passage on which the fixed stand is installed has an inclination; The present invention is characterized by the following.

[0018] Other features of the mount according to the present invention are the same as those of the mount shown in the fire hydrant device described above, and therefore a description thereof will be omitted. [Effects of the Invention]

[0019] (First invention: Effect of fire hydrant device) The fire hydrant device of the present invention is a fire hydrant device in which a housing is attached and fixed on a mount installed on the road surface of a guard passage provided along the wall surface in the longitudinal direction of a tunnel having a road, and the mount of the fire hydrant device comprises a fixed mount installed along the road surface in the longitudinal direction of the guard passage, a movable mount having a housing attached and fixed to an upper end mounting surface, one end side in the longitudinal direction being pivotally supported on one end side of the fixed mount and the other end side being pivotable in a direction up and down relative to the other end side of the fixed mount, and when the road surface of the guard passage on which the fixed mount is installed has a slope, one end side of the fixed mount pivotally supporting the movable mount is positioned above the slope of the road surface. The device is equipped with an angle setting mechanism that sets and fixes the rotation angle of the movable stand relative to the fixed stand so that when the movable stand is placed, it is horizontal or at an angle corresponding to the slope of the road surface.More specifically, by using the angle setting mechanism to set and fix the rotation angle so that it matches the slope angle of the sloped road surface or is close to that slope, when installing a fire hydrant device on a monitor's walkway where the road surface has a slope corresponding to the road gradient, it is possible to simply and easily attach and fix the fire hydrant device to a fixed stand installed along the slope of the road surface so that it is horizontal or at an angle corresponding to the slope of the road surface.

[0020] (Effect of the stand angle setting mechanism) The fixed base is a box frame member that is long in the longitudinal direction and opens upward, and the movable base is a box frame member that is long in the longitudinal direction and opens downward, and is arranged inside the fixed base. The angle setting mechanism has a shaft member that detachably passes through each of one and the other longitudinal ends of the fixed base and the movable base, and fixes the rotation angle to zero. When either one of the shaft members arranged on the one or the other end is removed and the movable base is rotatably supported around the other shaft member, the rotation angle of the movable base relative to the fixed base is set and fixed so that the movable base is horizontal or inclined corresponding to the road surface inclination. Thus, even if the road surface inclination direction of the monitor's passage differs depending on the upslope or downslope of the road, it is possible to simply and easily install and fix the fire hydrant device so that it is horizontal or inclined corresponding to the road surface inclination by supporting the movable base relative to the fixed base on the upper side of the road surface inclination and adjusting the rotation angle of the movable base relative to the fixed base on the lower side of the road surface inclination.

[0021] (Effect of the first angle setting mechanism) The first angle setting mechanism includes an angle setting member having a plurality of through holes arranged corresponding to a plurality of different rotation angles and fixed to each of one and the other longitudinal ends of the fixed pedestal, a plurality of angle setting holes opening at each of one and the other longitudinal ends of the fixed pedestal coaxially with the plurality of through holes in the angle setting member, and a plurality of through holes opening at each of the one and the other longitudinal ends of the movable pedestal corresponding to the plurality of through holes in the angle setting member, and when the movable pedestal is in a rotatable state, the removed shaft member is inserted into the through hole of the movable pedestal aligned with one of the through holes in the angle setting member through the corresponding angle setting hole in the fixed pedestal, thereby making it possible to easily set and fix the rotation angle of the movable pedestal relative to the fixed pedestal without fine adjustment so that the movable pedestal is horizontal or inclined corresponding to the road surface inclination. Furthermore, by making the angle setting member with a plurality of through holes formed therein a metal block member, high rigidity can be obtained even when a heavy fire hydrant device is placed on and attached.

[0022] (Effect of the second angle setting mechanism) The second angle setting mechanism has a plurality of building block members that can be assembled and disassembled, each having a plurality of inclined surfaces formed in multiple stages corresponding to a plurality of different rotation angles, and is provided with an angle setting member that sets one of the rotation angles by fixing one or more selected building block members in an assembled state to either one end or the other end of the longitudinal direction of the fixed base, and when the movable base is in a rotatable state, the movable base is brought into contact with the inclined surface of the angle setting member, making it possible to easily fix the rotation angle of the movable base relative to the fixed base without fine adjustment so that the movable base is horizontal or inclined corresponding to the slope of the road surface.In addition, by assembling the building block members to form the angle setting member, high rigidity can be obtained even when a heavy fire hydrant device is placed on it and attached.

[0023] (Effect of the third angle setting mechanism) In addition, the third angle setting mechanism is equipped with multiple types of angle setting members on which inclined surfaces corresponding to the different multiple rotation angles are formed, and one of the inclination angles is set by selecting and fixing one of the multiple types of angle setting members to either one end or the other end of the longitudinal direction of the fixed base, and when the movable base is free to rotate, it abuts the inclined surface of the selected angle setting member, making it possible to set and fix the rotation angle of the movable base relative to the fixed base so that the movable base is horizontal or inclined corresponding to the road surface inclination.Furthermore, unlike the second angle setting mechanism, there is no need to assemble an angle setting member that selects multiple building block members on which multiple inclined surfaces are formed in multiple stages to set a predetermined adjustment angle, and the structure can be simple.

[0024] (Effect of the fourth angle setting mechanism) The fourth angle adjustment setting mechanism comprises one or more fixed block members having a first inclined surface with a predetermined inclination angle and fixed to one end and the other end in the longitudinal direction of the fixed frame; a movable block member adjacent to the fixed block member and having a second inclined surface with an inclination opposite to the first inclined surface and arranged to be freely movable in the longitudinal direction; and an axle member arranged in a V-groove formed at the intersection of the adjacent first and second inclined surfaces and supporting the movable frame; when the movable frame is in a rotatable state, the axle member arranged in the V-groove is moved in the inclined direction along the first inclined surface in accordance with the longitudinal movement of the movable block member, thereby continuously (steplessly) changing the rotation angle of the movable frame relative to the fixed frame to any rotation angle so that the movable frame is horizontal or inclined corresponding to the road surface inclination, and this can improve the accuracy of setting the movable frame to a horizontal state compared to the stepped rotation angle setting of the first to third angle setting mechanisms. Furthermore, by using metal block members for the fixed block member and the movable block member, which have adjacent, facing first and second inclined surfaces, high rigidity can be achieved even when a heavy fire hydrant device is placed on, attached, and fixed.

[0025] (Effect of a stand with an angle setting mechanism on only one side of the stand) In addition, the angle setting mechanism is provided on only one of the longitudinal ends of the mount, which is composed of a fixed mount and a movable mount, and the movable mount has mounting holes formed in it so that when the mount is installed with one end and the other end swapped, the mounting holes of the movable mount will match the mounting holes of the housing before and after the swap.This means that when the direction of the road surface slope is different, the rotation angle of the movable mount can be easily set by simply swapping one end and the other end of the mount and installing it so that the fire hydrant device is horizontal or inclined to correspond to the slope of the road surface, using the angle setting mechanism provided on only one side of the mount.

[0026] (Second invention: Effect of the stand) The effect of the stand for mounting and fixing the fire hydrant device according to the present invention inside the tunnel is the same as that of the stand for the fire hydrant device described above, so a description thereof will be omitted. [Brief explanation of the drawings]

[0027] [Figure 1] FIG. 10 is an explanatory diagram showing an embodiment of a fire hydrant device installed on a guard passage. [Figure 2] FIG. 2 is an explanatory diagram showing the installation height of the fire hydrant device on a stand. [Figure 3] This is an explanatory diagram showing the internal structure of the fire hydrant device from the front with the fire hydrant door open. [Figure 4] FIG. 2 is an explanatory diagram showing the internal structure of the fire hydrant device from above. [Figure 5] FIG. 2 is an explanatory diagram showing a cross section of the fire hydrant device as seen from the side. [Figure 6] FIG. 10 is an explanatory diagram showing the horizontal installation of a fire hydrant device using an angle-adjustable stand when there is a road gradient. [Figure 7] FIG. 7 is an explanatory diagram schematically showing the principle of the gantry angle adjustment in FIG. 6. [Figure 8] 1A and 1B are explanatory diagrams showing a stand with an angle setting mechanism in plan, front, and side views. [Figure 9]10 is an explanatory diagram showing one side of a stand with an angle setting mechanism, showing the first angle setting mechanism from the front and side. FIG. [Figure 10] 10A and 10B are explanatory diagrams showing the fixed base side of the first angle setting mechanism from the front and side. [Figure 11] FIG. 11 is a perspective view showing the angle setting member of FIG. 10 taken out. [Figure 12] 10 is an explanatory diagram showing the movable base side of the angle setting mechanism in FIG. 9 from the front and side. [Figure 13] FIG. 10 is an explanatory diagram showing the shaft holes and angle setting holes on the lower sides of both ends of the fixed base and the angle setting holes of the movable base. [Figure 14] 10 is an explanatory diagram showing a state in which a rotation angle of 0.5° or 1.0° is set by the first angle setting mechanism. FIG. [Figure 15] 10 is an explanatory diagram showing a state in which a rotation angle of 1.5° or 2.0° is set by the first angle setting mechanism. FIG. [Figure 16] 10A and 10B are explanatory diagrams showing a stand having an angle setting mechanism on only one side, in plan, front and side views. [Figure 17] FIG. 10 is an explanatory diagram showing a second angle setting mechanism using an angle setting member of a building block structure. [Figure 18] 10 is an explanatory diagram showing a state in which the second angle setting mechanism sets the rotation angle to 0°, 0.5°, or 1.0°. FIG. [Figure 19] 10 is an explanatory diagram showing a state in which the second angle setting mechanism sets the rotation angle to 1.5° or 2.0°. FIG. [Figure 20] FIG. 10 is an explanatory diagram showing a third angle setting mechanism using an angle setting member with an integral structure. [Figure 21] 10 is an explanatory diagram showing the top, front and side views of a stand equipped with a fourth angle setting mechanism. [Figure 22] FIG. 21 is an explanatory diagram showing the main part of the fourth angle setting mechanism provided on the right end side of the pedestal in FIG. [Figure 23] 10 is an explanatory diagram showing the relationship between the moving distance of the movable block member and the rotation angle of the movable base. FIG. [Figure 24]10A and 10B are explanatory diagrams showing details of a front view, a front cross section, and a plan view of a fourth angle setting mechanism. [Figure 25] FIG. 10 is an explanatory diagram showing the fourth angle setting mechanism in detail from the right side. [Figure 26] FIG. 10 is an explanatory diagram showing the details of the right end side of the movable base on which the fourth angle setting mechanism is provided. [Figure 27] 10 is an explanatory diagram showing a state in which a rotation angle of 0.5° or 1.0° is set by the fourth angle setting mechanism. FIG. [Figure 28] 10 is an explanatory diagram showing a state in which a rotation angle of 1.5° or 2.0° is set by the fourth angle setting mechanism. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0028] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a fire hydrant device and a mount according to the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the following embodiments.

[0029] [Basic concept of the embodiment] First, a basic concept of the embodiment will be described. The embodiment generally relates to a fire hydrant device for a tunnel and a mounting base thereof.

[0030] Here, a "fire hydrant device" is a type of emergency tunnel equipment installed in tunnels such as expressways and motorways, and is a device that houses a fire hose and a fire extinguisher in a housing installed in the tunnel, and is a concept that includes fire hydrant equipment.

[0031] Furthermore, the term "mounting" refers to a structure that supports an object using pillars and beams, etc., and includes concepts such as a support base, foundation, base, pedestal, and base. The mounting of this embodiment is installed on the road surface of a guard passageway that is provided in the longitudinal direction of a tunnel along the wall of a tunnel with a curved cross section constructed by a shield tunneling method or the like, and mounts and fixes the housing of a fire hydrant device.

[0032] Furthermore, when the stand of this embodiment is installed on the road surface of the guard passage where the fire hydrant device is installed, it takes on the shape of an inverted trapezoid with the top side longer than the bottom side in the depth direction, so as to follow the curved shape of the tunnel wall surface.

[0033] In addition, the fire hydrant device's stand consists of a fixed stand and a movable stand, and is equipped with an angle setting mechanism that allows the fire hydrant device's housing to be attached and fixed so that it is horizontal or at an angle that corresponds to the road surface slope when the guard passage where it is installed has a slope.

[0034] Here, the term "fixed platform" refers to a platform installed along the road surface in the longitudinal direction of the guard passage tunnel, and the term "movable platform" refers to a platform on whose upper end the hydrant device housing is fixed, one longitudinal end of which is pivotally supported on one end of the fixed platform, and the other end of which can rotate up and down relative to the other end of the fixed platform.

[0035] The structure of the mount that allows angle adjustment is arbitrary, but for example, the fixed mount is a box frame member that is long in the longitudinal direction of the monitor passage and opens upward, and the movable mount is a box frame member that is long in the longitudinal direction of the monitor passage and opens downward and is placed inside the fixed mount, and the angle setting mechanism has a shaft member that can be attached and detached through each of one and the other longitudinal ends of the fixed and movable mounts, and fixes the rotation angle to zero, and when an arbitrary rotation angle is set, one of the shaft members placed on one or the other end is removed and the movable mount is pivotally supported so that it can rotate freely around the other shaft member, and the rotation angle of the movable mount relative to the fixed mount is set and fixed so that the movable mount is horizontal or inclined corresponding to the slope of the road surface.

[0036] The structure and mechanism of the angle setting mechanism are arbitrary, but the following first to fourth angle setting mechanisms are embodiments.

[0037] The "first angle setting mechanism" comprises an angle setting member having a plurality of through holes arranged corresponding to a plurality of different rotation angles and attached and fixed to each of one end and the other end in the longitudinal direction of the fixed frame, a plurality of angle setting holes opened at each of one end and the other end in the longitudinal direction of the fixed frame coaxially with the plurality of through holes in the angle setting member, and a plurality of through holes opened at each of one end and the other end in the longitudinal direction of the movable frame corresponding to the plurality of through holes in the angle setting member, and when the movable frame is in a rotatable state, the removed shaft member is inserted into the through hole of the movable frame aligned to one of the through holes in the angle setting member via the corresponding angle setting hole of the fixed frame, and the rotation angle of the movable frame relative to the fixed frame is set and fixed so that the movable frame is horizontal or inclined corresponding to the road surface inclination.

[0038] In addition, the "second angle setting mechanism" has a plurality of building block members that can be assembled and disassembled, with a plurality of inclined surfaces formed in multiple stages corresponding to a plurality of different rotation angles, and is equipped with an angle setting member that sets one of the different rotation angles by fixing one or more selected building block members in an assembled state at either one end or the other end of the longitudinal direction of the fixed base, and sets and fixes the rotation angle of the movable base relative to the fixed base so that the movable base is horizontal or inclined corresponding to the slope of the road surface when the movable base is freely rotatable.

[0039] The "third angle setting mechanism" is provided with a plurality of angle setting members on which a plurality of inclined surfaces corresponding to a plurality of different rotation angles are formed, and one of the angle setting members is selected and fixed to either one end or the other end of the longitudinal direction of the fixed base to set one of the rotation angles, and when the movable base is free to rotate, the movable base is brought into contact with the inclined surface of the selected angle setting member, thereby setting and fixing the rotation angle of the movable base relative to the fixed base so that the movable base is horizontal or inclined corresponding to the road surface inclination.

[0040] The "fourth angle setting mechanism" comprises one or more fixed block members having a first inclined surface with a predetermined inclination angle and fixed to one end and the other end of the fixed frame in the longitudinal direction; a movable block member adjacent to the fixed block and having a second inclined surface with an inclination opposite to that of the first inclined surface and arranged to be freely movable in the longitudinal direction; and an axle member arranged in a V-groove formed at the adjacent intersection of the first inclined surface and the second inclined surface to support the movable frame; when the movable frame is rotatable, the axle member arranged in the V-groove is moved in the inclined direction along the first inclined surface in response to the longitudinal movement of the movable block member, thereby setting and fixing the rotation angle of the movable frame relative to the fixed frame so that the movable frame is horizontal or inclined corresponding to the inclination of the road surface.

[0041] In addition, to simplify the structure, an angle setting mechanism is provided only on the other end of the fixed and movable stands, which are supported on either the left or right end, and when the left and right sides of the fixed and movable stands are swapped due to differences in the direction of the road surface slope, mounting holes are formed in the movable stand so that the mounting holes of the movable stand will match the mounting holes of the fixed stand before and after the swap.

[0042] Specific embodiments will be described below. In the specific embodiments shown below, a "fire hydrant device mount" is composed of a "first mount having an inverted trapezoid shape fixed to the monitor's passage" and a "second mount placed on the first mount to mount and fix the casing of the fire hydrant device," and the second mount is provided with a "fixed mount," a "movable mount," and "first to fourth angle setting mechanisms" to adjust the angle so that the fire hydrant device is installed horizontally or at an inclination corresponding to the inclination of the road surface when the monitor's passage where the fire hydrant device is installed has an inclined road surface, and the "first to third angle setting mechanisms" "can set the rotation angle stepwise to any of 0.5°, 1.0°, 1.5°, or 2.0°," and the "fourth angle setting mechanism" "can set the rotation angle steplessly to any angle within the range of 0° to 2.0°."

[0043] [Specific details of the embodiment] The fire hydrant device and the mounting base of the fire hydrant device will be explained in more detail below. a. Fire hydrant equipment a1. Overview of fire hydrant equipment a2. Installation of fire hydrant equipment a3. Installation height and thinness of fire hydrant equipment a4. Internal structure of fire hydrant equipment b. Angle adjustable stand b1. Horizontal placement of fire hydrant devices when the road surface is inclined b2. Stand angle setting mechanism c. First angle setting mechanism c1. Structure of the frame c2. Angle setting hole on fixed base c3. Angle setting member c4. Adjustable stand angle hole c5. Positional relationship of angle setting holes on fixed and movable bases c6. Setting operation of the rotation angle by the first angle setting mechanism c7. Angle setting mechanism on the left side of the stand c8. Stand with angle setting mechanism on only one side d. Second and third angle setting mechanisms d1. Structure of the second angle setting mechanism d2. Setting operation of rotation angle by second angle setting mechanism d3.Third angle setting mechanism e. Fourth angle setting mechanism e1. Configuration of the fourth angle setting mechanism e2. Relationship between the moving distance of the movable block member and the rotation angle of the movable stand e3. Specific structure of the fourth angle setting mechanism e4. Rotation angle setting operation by the fourth angle setting mechanism f. Modifications of the present invention

[0044] [a. Fire hydrant equipment] The fire hydrant device and the mounting base for a tunnel according to this embodiment will be described in more detail below. Figure 1 is an explanatory diagram showing the installation of the fire hydrant device in a tunnel, with Figure 1(A) showing the installation of the fire hydrant device as seen from the cross section of the tunnel, and Figure 1(B) showing the installation of the fire hydrant device as seen toward the tunnel wall.

[0045] (a1. Overview of fire hydrant equipment) An overview of the fire hydrant device will be given below. As shown in Figure 1(B), the fire hydrant device 10 has a structure divided into a housing 11a on the fire hydrant storage side and a housing 11b on the fire extinguisher storage side, and decorative frames 13a and 13b are attached to the front of the housings 11a and 11b.

[0046] In the description of Fig. 1, the X, Y, and Z directions are directions that are orthogonal to each other. Specifically, as shown in Fig. 1(B), when looking at the front face of the fire hydrant device from the front, the X direction is the left-right direction, the Y direction is the up-down direction, and the Z direction is the front-to-back direction. In addition, the +X side in the X direction is the right side, and the -X side is the left side. In the Y direction, the +Y side is the upper side, and the -Y side is the lower side. In the Z direction, the +Z side is the front side, and the -Z side is the rear side. This also applies to Figs. 2 to 28, which are embodiments of the present invention.

[0047] The door opening of the decorative frame 13a on the fire hydrant storage section side is divided into upper and lower sections, and a forward-leaning fire hydrant door 12 that opens downward on hinges 12a is installed at the bottom of the door opening, and a maintenance door 14 that opens upward on hinges 14a is installed at the top of the door opening, and inside the fire hydrant storage section, fire hoses and valves including fire hydrant valves are stored.

[0048] On the left side of the door opening of the decorative frame 13b attached to the fire extinguisher storage section, a fire extinguisher door 16 is provided that opens sideways to the left on hinges 16a, making it possible to store, for example, two fire extinguishers in the fire extinguisher storage section inside. In addition, a viewing window 17 is provided below the fire extinguisher door 16, making it possible to check from the outside whether the fire extinguisher is stored or not.

[0049] An electrical door 18 that opens sideways to the right on hinges 18a is provided on the right side of the door opening in decorative frame 13b. Electrical equipment such as a red indicator light 20, a transmitter 22, and an answer lamp 24 is provided on electrical door 18, and a telephone jack 25 is provided inside the housing of electrical door 18.

[0050] The red indicator light 20 is always lit, allowing the fire hydrant device 10 to be seen from a distance. When a fire breaks out and the transmitter 22 is pressed to turn on the push button switch, a transmission signal is sent, which is received by the disaster prevention receiving panel and a fire alarm is output. The fire hydrant device 10 receives a response signal from the disaster prevention receiving panel, causing the red indicator light 20 to flash and the response lamp 24 to light up.

[0051] (a2. Installation of fire hydrant equipment) The installation of fire hydrants in tunnels will be explained in more detail below. A road 36 is constructed in the longitudinal direction of the tunnel below the cylindrical (circular cross section) tunnel body constructed using the shield tunneling method, and a guard passage 34 is constructed at a predetermined height above the road 36 on the underside of the tunnel wall 26 along one side of the road 36.

[0052] Since tunnel wall 26 constructed using the shield method does not require box-cutting to install fire hydrant device 10 (not that it is "impossible," but that box-cutting is "not" done due to cost and effort), mount 28 is installed close to tunnel wall 26 above monitor passage 34, and casings 11a, 11b of fire hydrant device 10 are attached and fixed to mount 28. Here, height H1 of mount 28 is set so that the height from the road surface of monitor passage 34 to transmitter 22 installed on fire hydrant device 10 is within the legally specified range of 800 mm to 1500 mm.

[0053] The mount 28 of this embodiment is composed of a first mount 30 and a second mount 32. As shown in Fig. 1(A), the first mount 30 has a side shape that is an inverted trapezoid with the top side longer than the bottom side, and the rear side has a slope that faces diagonally downward along the curved shape of the tunnel wall surface 26. The second mount 32 is fixed on top of the first mount 30, and is used to attach and fix the housings 11a and 11b of the fire hydrant device 10.

[0054] (a3. Installation height and thinness of fire hydrant equipment) The installation height and thinning of the fire hydrant device will be explained in more detail below. In order to reduce the restriction on the passage width caused by the protrusion (protrusion) of the fire hydrant device 10 installed above the guard passage 34 by the mount 28, the installation height of the fire hydrant device 10 is optimized, and at the same time, the fire hydrant device 10 is made as thin as possible.

[0055] First, the optimization of the height H1 of the mounting base 28 will be described in more detail. Fig. 2 shows a schematic diagram of the installation of a fire hydrant device in a tunnel cross section. The tunnel wall 26 on which the fire hydrant device 10 is installed has a circular cross section, and in Fig. 2(A), the height H1 of the mounting base 28 is set so that the horizontal tunnel center line SL1 from the tunnel center (center of the circular cross section) P of the fire hydrant device 10 installed on the monitor passage 34 is as close as possible to the horizontal housing center line SL2 passing through the center of the height direction of the fire hydrant device 10. Note that Fig. 2 shows an example in which the side shape of the fire hydrant device 10 is a vertically long rectangle.

[0056] In this case, the closer the housing center line SL2 is to the tunnel center line SL1, the less the fire hydrant device 10 protrudes from the tunnel wall surface 26, making it possible to reduce restrictions on the road width.

[0057] 2(B) shows a case where the height H1 of the mount 28 is set so that the housing center line SL2 coincides with the tunnel center line SL1. In this case, the degree to which the fire hydrant device 10 protrudes from the tunnel wall surface 26 can be minimized, further reducing the constraints on the width of the guard passage. However, this should be adjusted to the extent possible, taking into account the ease of removing the fire extinguisher, etc.

[0058] Next, the reduction in the thickness of the fire hydrant device 10 will be described in more detail. In order to reduce the thickness of the fire hydrant device 10, it is effective to shape the back surface of the housing of the fire hydrant device 10 so that it conforms to the tunnel wall surface 26. Any shape can be used to reduce the thickness of the housings 11a, 11b of the fire hydrant device 10. For example, as shown in FIG. 1(A), the side shape of the housings 11a, 11bl is such that in the upper part at height H3, the front and back surfaces 15a are vertical, and in the lower part at height H4, the front surface is vertical, but the back surface 15b is an inclined surface that slopes downward and forward to match the curved shape of the tunnel wall surface 26, and the width is at its minimum at the bottom of the housings 11a, 11b.

[0059] Here, the minimum width (minimum depth) of the bottom of the housings 11a and 11b is set to a width that matches the diameter of the fire extinguisher to be stored in housing 11b, which serves as the fire extinguisher storage section. Since the diameter of the fire extinguisher generally does not exceed 150 mm, the minimum width of the bottom of housings 11a and 11b is set to, for example, approximately 180 to 200 mm, taking into account the installation of a fire extinguisher guide. In contrast, the housing width (depth) of a known fire hydrant device installed in a cutout on the wall of a tunnel is approximately 300 mm, so the minimum housing width of this embodiment can be reduced to approximately half that of a conventional housing. Furthermore, the housing width from the top of back surface 15b, which forms the inclined surface, to back surface 15a is approximately 200 mm, which is approximately two-thirds the width of a conventional housing.

[0060] Although the housings 11a and 11b are made thinner, the storage volume for storing fire hoses, valves, electrical equipment, fire extinguishers, etc. remains unchanged. Therefore, the width W and height H2 of the housings 11a and 11b are increased to obtain the specified storage volume. In this embodiment, the hydrant door 12, maintenance door 14, fire extinguisher door 16, and electrical equipment door 18 are the same size as those of a conventional fire hydrant device installed without a box. As a result, in this embodiment, the width W remains unchanged, but the height H2 is changed to a vertically longer size than that of the conventional device. Of course, both the width W and the height H2 may be increased to obtain the specified storage volume.

[0061] The inside of the monitor passage 34 is a duct 40, through which a main water supply pipe 42 is laid, with branch pipes 44 being drawn out for each hydrant device 10, and water supply piping 48 is drawn into the interior of the housing 11a through the frame 28 via a gate valve 46 (for example, a ball valve). Also, although not shown, various cables connected to the hydrant devices 10 are laid in the duct 40, and are drawn into the housing 11a from below through the frame 28 for each hydrant device 10. This eliminates the need to secure space to the left, right, or rear of the hydrant device 10 for drawing in water supply piping and cables, improving the appearance.

[0062] (a4. Internal structure of fire hydrant device) The internal structure of the fire hydrant device will be described in more detail. As shown in Figures 3 to 5, the interior of the housing 11a (inside the fire hydrant door 12), which serves as the fire hydrant storage section, is divided into a valve storage section 50a and a hose storage section 50b.

[0063] A water supply pipe 48 is drawn into the valve storage section 50a from below through the stand 28 and connected to a hydrant 54. The water supply pipe 48 also branches downward, where a fire hydrant valve 56 and an automatic pressure regulating valve 58 are provided, and a hose 62 is connected to the water supply pipe 48. The hydrant valve 56 is opened and closed by a hydrant valve opening / closing lever 60. When the hydrant valve opening / closing lever 60 is opened or closed, the hydrant valve 56 is remotely opened or closed by a known wire link mechanism. When the hydrant valve opening / closing lever 60 is opened or closed, a pump start interlock switch provided on the operation box turns on and off. A pump start switch 65 for use by the fire brigade is provided to the upper right of the hydrant 54.

[0064] A hose storage frame 64 is provided in the hose storage section 50b, and a hose 62 is stored in the frame, wound clockwise inward, after being drawn in from below. A nozzle 68 is attached to the tip of the hose 62, which is drawn out through a hose guide 66, and is detachably held by a nozzle holder 70.

[0065] Here, as the height H2 has been increased compared to conventional devices due to the thinner housing 11a, the height of the hose storage frame 64 has also been increased, as shown in Fig. 3. This increases the length per turn (per winding) of the hose 62 and reduces the number of overlapping turns of the hose 62, making it possible to store a hose 62 of a predetermined length, for example, a 30 m hose 62, in an inwardly wound state, even with the thinner housing 11a. Note that if the height of the hose storage section interferes with operation when storing the hose, the width W of the housing 11a is increased rather than the height H2.

[0066] The interior of the housing 11b (inside the fire extinguisher door 16) is the fire extinguisher storage section 52, in which two fire extinguishers 74 are stored, as shown in Fig. 4. Here, the lower rear sides of the housings 11a and 11b form a sloped surface 15b that slopes diagonally downward toward the front, as shown in Figs. 1(A) and 5, and the depth width D1 of the bottom is the minimum width relative to the width D2 of the top, which is the vertical surface 15a. The minimum width D1 of the bottom needs only to be able to store the fire extinguisher 74, and is therefore set to, for example, about D1 = 150 mm, corresponding to the diameter of the fire extinguisher 74, as described above.

[0067] Terminal boxes 72a and 72b are installed on the back of the fire extinguisher storage section 52. A red indicator light 20 provided on the electrical door 18 is connected to the terminal box 72a, and a transmitter 22, a response lamp 24, and a telephone jack 25 provided on the electrical door 18 are connected to the terminal box 72b, which is further connected to a pump start switch 65 and a pump start interlock switch provided in the valve storage section 50a.

[0068] As the housing 11b has been made thinner, the terminal boxes 72a and 72b cannot be installed on the rear of the housing at the rear of the fire extinguisher 74 as in conventional devices, so they are installed on the rear of the housing in the empty space above the fire extinguisher storage section 52, which has increased as a result of the thinner housing.

[0069] [b. Adjustable angle stand] The angle-adjustable mount will now be described in more detail. Figure 6 is an explanatory diagram showing the horizontal placement of a fire hydrant device using an angle-adjustable mount when there is a road surface slope in the guard passage, with Figure 6(A) showing the case where the road surface slopes upward to the left (downward to the right), and Figure 6(B) showing the case where the road surface slopes upward to the right (downward to the left). Figure 7 is an explanatory diagram that schematically shows the principle configuration of angle adjustment, with Figure 7(A) showing the case where the road surface slopes upward to the left (downward to the right), and Figure 7(B) showing the case where the road surface slopes upward to the right (downward to the left).

[0070] (b1. Horizontal placement of fire hydrant devices when the road surface is inclined) As shown in Figures 6 and 7, the angle-adjustable stand 28 of this embodiment is composed of a first stand 30 and a second stand 32, similar to the embodiment shown in Figures 1 to 5, and of these, the second stand 32 is composed of a fixed stand 80, a movable stand 82, and angle setting mechanisms 81a and 81b provided on both the left and right ends of the stand.

[0071] 6(A), when the road surface slope of guard passage 34 has an upward-left inclination angle α with respect to horizontal line 78, movable platform 82 is supported by shaft member 84a at its left end, which is on the upper side in the direction of the road surface slope, with fixed platform 80 positioned along road surface line 34a, and its right end is rotated up and down by an angle setting mechanism, and is fixed at a rotation angle that matches or is close to inclination angle α. Here, road surface line 34a means a longitudinal line that is parallel to the road surface of guard passage 34.

[0072] Figure 7(A) shows the principle configuration for angle adjustment corresponding to Figure 6(A), in which a fixed platform 80 is placed along a road surface line 34a having an inclination angle α sloping upward to the left, and a movable platform 82 is supported on its right end so that it can rotate freely up and down around a shaft member 84a at its left end. An angle setting mechanism 81b rotates and fixes the movable platform 82 so that the rotation angle θ matches the inclination angle α of the road surface line 34a. As a result, the movable platform 82 is positioned horizontally along the horizontal line 78.

[0073] Furthermore, when the road surface of the guard passage 34 slopes upward to the right with respect to the horizontal line 78 as shown in Figure 6(B), the movable platform 82 is supported by an axis member 84b at its right end, which is on the upper side of the road surface slope direction, relative to the fixed platform 80 arranged along the road surface line 34a, and is rotated up and down by the angle setting mechanism on the left end, and is fixed at a rotation angle that matches or is close to the slope angle α.

[0074] Figure 7(B) shows the principle configuration for angle adjustment corresponding to Figure 6(B), in which a fixed platform 80 is placed along the guard passageway road surface line 34a, which has an inclination angle α rising upward to the right, and a movable platform 82 is pivotally supported at its left end so that it can rotate freely up and down around a shaft member 84a at its right end. An angle setting mechanism 81a rotates and fixes the movable platform 82 so that the rotation angle θ matches the inclination angle α of the road surface line 34a. This positions the movable platform 82 horizontally along the horizontal line 78.

[0075] The rotation angle θ set by the angle setting mechanisms 81a and 81b is arbitrary, but if the maximum gradient of the road is 3.5%, that is, the inclination angle α of the road surface is approximately within 2°, it is set in the range of 0° to 2°, for example.

[0076] Furthermore, angle setting mechanisms 81a and 81b are used to set movable platform 82 to horizontal or at an inclination corresponding to the road surface inclination when the guard passage has a slope. However, this is not limited to this, and includes cases where the angle can be fine-tuned as needed even when the guard passage does not have a slope. For example, there may be a case where the guard passage does not have a slope, but the platform is slightly inclined in the longitudinal direction due to the flatness of the road surface. Even in such a case, the rotation angle of movable platform 82 can be fine-tuned to set it to horizontal or at an inclination corresponding to the road surface inclination.

[0077] Here, the first to third angle setting mechanisms described below set the rotation angle θ of the movable base 82 in stages, for example, allowing setting in 0.5° increments within the range of 0° to 2°, and setting the rotation angle θ to any of 0.5°, 1.0°, 1.5°, or 2.0°. The fourth angle setting mechanism described below sets the rotation angle θ of the movable base 82 continuously (continuously), for example, setting any rotation angle θ within the range of 0° to 2°.

[0078] (b2. Angle setting mechanism for the stand) The angle setting mechanisms provided on the second frame 32 will be described in more detail below. The angle setting mechanisms of this embodiment include a first angle setting mechanism shown in Figures 8 to 16, a second angle setting mechanism shown in Figures 17 to 19, a third angle setting mechanism shown in Figure 20, and a fourth angle setting mechanism shown in Figures 21 to 28.

[0079] [c. First angle setting mechanism] The first angle setting mechanism will be described in more detail. Figure 8 shows an embodiment of the angle-adjustable second stand 32, with Figure 8(A) showing a plan view, Figure 8(B) showing a front view, and Figure 8(C) showing a right side view.

[0080] (c1. Structure of the stand) A more detailed description will be given of the structure of the second frame 32. As shown in Fig. 8, the second frame 32 is made up of a fixed frame 80, a movable frame 82, shaft members 84a and 84b, nuts 86a and 86b, and angle setting members 90a and 90b.

[0081] The fixed frame 80 is formed, for example, by arranging two angle irons that are long in the left-right direction (longitudinal direction of the tunnel) side by side and welding both ends (one end and the other end) with flat steel material, to form a box-frame member with an opening facing upward. The movable frame 82 is formed, for example, by arranging two angle irons that are long in the left-right direction side by side with facing downward, and welding and fixing bottom plates 80a, 80b made of flat steel material to the bottom of both ends, to form a box-frame member with an opening facing downward, and its depth direction is set to a width that can fit inside the fixed frame 80. Angle setting members 90a, 90b are arranged on the bottom plates 80a, 80b fixed to the bottom ends of the fixed frame 80.

[0082] Shaft holes 88a, 88b are formed on the underside of both ends of the front and rear member surfaces of the fixed base 80, and shaft holes corresponding to the shaft holes 88a, 88b are also formed on the front and rear member surfaces of the movable base 82. Nuts 86a, 86b are fixed by welding or the like to the rear member surface of the fixed base 80 where the shaft holes 88a, 88b open, forming threaded holes. With the movable base 82 placed inside the fixed base 80, shaft members 84a, 84b are inserted into the shaft holes 88a, 88b, respectively, and the threaded portions at the tip ends are screwed into nuts 86a, 86b fixed to the rear member surface, thereby fixing the movable base 82 to the fixed base 80. In this state, the rotation angle of the movable base 82 with respect to the fixed base 80 is 0°.

[0083] As shown in Figure 6(A), when the fixed base 80 is installed along a road surface slope that slopes upward to the left, the right-end shaft member 84b is removed, and the movable base 82 is pivotally supported around the left-end shaft member 84a. Conversely, as shown in Figure 6(B), when the fixed base 80 is installed along a road surface slope that slopes upward to the right, the left-end shaft member 84a is removed, and the movable base 82 is pivotally supported around the right-end shaft member 84a.

[0084] (c2. Angle setting hole of the fixed stand) The angle setting holes of the fixed base 80 will be described in more detail. Angle setting holes 92a, 92b, 92c, and 92d for configuring an angle setting mechanism that sets the rotation angle of the movable base 82 to the upper right are formed in the front member surface located on the right end side of the fixed base 80. Nuts 93a, 93b, 93c, and 93d are fixed by welding or the like to the rear member surface of the fixed base 80 where the angle setting holes 92a, 92b, 92c, and 92d open, forming screw holes.

[0085] In addition, angle setting holes 92a, 92b, 92c, and 92d are formed on the front member surface located on the left end side of the fixed base 80 in a symmetrical arrangement on the right side to form an angle setting mechanism that sets the rotation angle of the movable base 82 to a left-upward direction, and nuts 93a, 93b, 93c, and 93d are fixed by welding or the like to the opening rear member surface to form screw holes.

[0086] Figure 9 shows the right end portion constituting the angle setting mechanism of the second frame 32, with Figure 9(A) showing the front and Figure 9(B) showing the right side. Also, Figure 10 shows the right end portion of the fixed frame 80 in Figure 9, with Figure 10(A) showing the internal structure as seen from the front and Figure 10(B) showing the right side.

[0087] The angle setting holes 92a to 92d formed in the fixed base 80 are used to set the rotation angle of the movable base 82, which rotates around the shaft member 84a inserted into the leftmost shaft hole 88a, by inserting the shaft member 84b removed from the shaft hole 88b and screwing it into nuts 93a to 93d fixed to the rear member surface.Angle setting hole 92a is used to set a rotation angle of 0.5°, angle setting hole 92b is used to set a rotation angle of 1.0°, angle setting hole 92c is used to set a rotation angle of 1.5°, and angle setting hole 92d is used to set a rotation angle of 2.0°.

[0088] (c3. Angle setting member) The angle setting members 90a and 90b will be described in more detail. An angle setting member 90a is fixed to the top of the bottom plate 80a on the right end of the fixed base 80 shown in Fig. 8, and constitutes an angle setting mechanism that sets the movable base 82 to a rotation angle that is upward and to the right. Furthermore, an angle setting member 90b is fixed to the top of the bottom plate 80b on the left end of the fixed base 80, and constitutes an angle setting mechanism that sets the movable base 82 to a rotation angle that is upward and to the left.

[0089] Figure 11 shows the angle setting member 90a on the right end. The angle setting member 90a is a rectangular steel block, and has through-holes 95a-95d formed at positions corresponding to the angle setting holes 92a-92d formed in the front member surface of the fixed base 80, ensuring strength when supporting the movable base 82 through the shaft member 84b. In addition, fitting protrusions 96a are formed on both sides of the lower front and rear sides of the angle setting member 90a, and are positioned by fitting into fitting recesses 96b provided on the lower ends of the front and rear member surfaces of the movable base 82 shown in Figure 11(A) at a rotation angle of 0°.

[0090] (c4. Adjustable stand angle hole) The through-holes of the movable base 82 will be explained in more detail. Figure 12 shows the right end side of the movable base 82, with Figure 12(A) showing the front and Figure 12(B) showing the right side.

[0091] As shown in Fig. 12(A), the movable base 82 has shaft holes 89b formed on the underside of its front and rear component surfaces, which, as shown in Fig. 9(A), face the shaft hole 88b when placed inside the fixed base 80, allowing for the insertion of the shaft member 84b. Similarly to the right end side, shaft holes 89a (not shown) are also formed on the underside of the front and rear component surfaces on the right side of the movable base 82, which face the shaft hole 88a of the fixed base 80, allowing for the insertion of the shaft member 84a.

[0092] Furthermore, through holes 94a, 94b, 94c, and 94d are formed on a line of 0° rotation angle connecting the centers of shaft holes 89a and 89b formed on the lower side of both left and right ends of movable base 82. Through hole 94a is used to set a rotation angle of 0.5°, through hole 94b is used to set a rotation angle of 1.0°, through hole 94c is used to set a rotation angle of 1.5°, and through hole 94d is used to set a rotation angle of 2.0°.

[0093] When setting the rotation angle of the movable base 82 relative to the fixed base 80, the rotation angle is set by inserting the shaft member 84b while aligning one of the through holes in the movable base 82 with an angle setting hole of the fixed base 80 for the same rotation angle. In this case, the through hole of the angle setting member 90a shown in Fig. 11 which is fixed inside the fixed base 80 is also aligned with the angle setting hole of the fixed base 80 for the same rotation angle, and the rotation angle is set by passing the shaft member 84b through the through hole of the angle setting member 90a.

[0094] 9(A), when a rotation angle of 0.5° is set, the through-hole 94a of the movable base 82 is aligned with the angle-setting hole 92a of the fixed base 80, and the shaft member 84b is inserted. When a rotation angle of 1.0° is set, the through-hole 94b of the movable base 82 is aligned with the angle-setting hole 92b of the fixed base 80, and the shaft member 84b is inserted. When a rotation angle of 1.5° is set, the through-hole 94c of the movable base 82 is aligned with the angle-setting hole 92c of the fixed base 80, and the shaft member 84b is inserted. When a rotation angle of 2.0° is set, the through-hole 94d of the movable base 82 is aligned with the angle-setting hole 92d of the fixed base 80, and the shaft member 84b is inserted.

[0095] (c5. Positional relationship of angle setting holes on fixed and movable bases) The positional relationship between the angle setting holes 92a to 92d of the fixed base 80 and the through holes 94a to 94d of the movable base 82, which are provided to configure the angle setting mechanism, will be described in more detail.

[0096] FIG. 13 shows the shaft holes 88a, 88b and angle setting hole 92a of the fixed base 80 and the through hole 94a of the movable base 82 in a simplified manner, and the rotation angle θ is shown at a larger angle than in reality to make it easier to see.

[0097] Here, let O be the center of the shaft hole 88a that serves as the rotation center, P be the center of the angle setting hole 92a located on the axis of the rotation angle θ, and Q be the point where the perpendicular line dropped from point P intersects with the reference line of the rotation angle 0°. The lengths of the base L1, vertical side L2, and hypotenuse L3 of the right triangle OPQ are as follows: tanθ=L2 / L1 L3=(L12+L22)1 / 2 There is a relationship between

[0098] Therefore, when the length of the base L1 and the rotation angle θ are determined, L2=L1tanθ The distance of the vertical side L2 from point Q to the center P of the angle setting hole 92a is determined, and the angle setting hole 92a can be machined in the fixed base 80.

[0099] Furthermore, point R, which is the center of through-hole 94a in movable base 82, is the intersection point between an arc of radius L3 centered at point O to point P and the reference line, and point R is determined as a position at a distance L3 from point P on the reference line, allowing through-hole 94a to be machined in movable base 82.

[0100] (c6. Setting operation of rotation angle by first angle setting mechanism) The operation of setting the rotation angle using the first angle setting mechanism will be described in more detail. Figure 14(A) shows the setting of the rotation angle θ of the movable base 82 when the fixed base 80 is installed along the road surface line 34a with an inclination angle α of 0.5° upward to the left.

[0101] First, the left-hand shaft member 84a, which is on the upper side in the direction of the road surface slope shown in Figure 8, is inserted into the shaft hole 88a to serve as the rotation center of the movable base 82, and the right-hand shaft member 84b is removed to make the movable base 82 rotatable. Next, as shown in Figure 14(A), the through-hole 94a of the movable base 82 is aligned with the angle-setting hole 92a of the fixed base 80. At this time, the through-hole 94a of the movable base 82 is also aligned with the through-hole 95a of the angle setting member 90a fixed to the inside of the fixed base 80. In this aligned state, the removed shaft member 84b is inserted into the angle-setting hole 92a of the fixed base 80, and the threaded portion at the tip is screwed into the nut 93a (see Figures 8 and 9) fixed to the rear member surface to fix the movable base 82.

[0102] By setting the rotation angle θ of the movable platform 82 to 0.5° in this manner, the movable platform 82 is positioned along the horizontal line 78, allowing the fire hydrant device 10 to be installed and fixed in a horizontal position.

[0103] 14(B), the setting of the rotation angle θ=1.0° in FIG. 15(C), the setting of the rotation angle θ=1.5° in FIG. 15(C), and the setting of the rotation angle θ=2.0° in FIG. 15(D), with one of the angle-setting holes 92b-92d in the fixed base 80 aligned with one of the corresponding through-holes 94b-94d in the movable base 82, the removed shaft member 84b is inserted into one of the angle-setting holes 92b-92d in the aligned fixed base 80, and the nuts 93b-93d are screwed into the nuts to fix the movable base 82. Note that if the inclination angle α of the guard passage on which the fixed base 80 is installed is not 0.5°, 1.0°, 1.5°, or 2.0°, but is between any of these values, the rotation angle is set to the angle corresponding to the closest inclination angle, making it possible to install and fix the fire hydrant device 10 horizontally or at an inclination corresponding to the road surface inclination.

[0104] (c7. Angle setting mechanism on the left side of the stand) The angle setting mechanism provided on the left end side of the second base 32 is an angle setting mechanism that is arranged symmetrically on the left and right sides with respect to the angle setting mechanism on the right end side described above. As shown in Figures 8(A) and 8(B), angle setting holes 92a-92d for setting rotation angles of 0.5°, 1.0°, 1.5°, and 2.0° are formed in the front member surface of the fixed base 80, and nuts 93a, 93b, 93c, and 93d are fixed to the rear member surface corresponding to the angle setting holes 92a-92d, and an angle setting member 90a having through holes 95a-95d formed on the bottom plate 80a is fixed. In addition, through holes 94a-94d are formed in the front and rear member surfaces of the left end side of the movable base 82 in an arrangement that is symmetrical with respect to Figure 14. As a result, as shown in Figures 6(B) and 7(B), by setting the rotation angle θ of the movable platform 82 to correspond to the rotation angle α of the road surface slope upward to the right, it is possible to position the fire hydrant device 10 horizontally or at an inclination corresponding to the road surface slope in an inclined guard passage.

[0105] (c8. Stand with angle setting mechanism on only one side) 8 to 15, for the angle-adjustable second frame 32 composed of a fixed frame 80 and a movable frame 82, angle setting mechanisms are provided on both the left and right ends of the fixed frame 80 and the movable frame 82, and the rotation angle of the movable frame 82 is set by either the angle setting mechanism for a road surface inclination upward to the left or upward to the right. However, this is not limited to this, and an angle setting mechanism may be provided only on either the left or right side of the fixed frame 80 or the movable frame 82.

[0106] Figure 16 shows a mount provided with an angle setting mechanism on only one side, with Figure 16(A) showing a plan view, Figure 16(B) showing a front view, and Figure 16(C) showing a right side view. In this embodiment, the angle setting holes 92a-92d and nuts 93a-93d of the fixed mount 80, the angle setting member 90a, and the through holes 94a-94d of the movable mount 82 (see Figure 12), which constitute the angle setting mechanism, are provided only on the right end side of the second mount 32, but no angle setting mechanism is provided on the left side, making the structure simpler.

[0107] Axial member 84a is inserted into an axial hole 88a on the lower left end of fixed base 80 and the opposing axial hole of movable base 82, and is screwed into a nut 86a, thereby supporting movable base 82 so that it can rotate freely around axial member 84a. Axial member 84b is inserted into opposing axial holes of fixed base 80 and movable base 82, and is fixed by screwing into a nut 86b, and when the rotation angle is to be set, axial member 84b is removed, allowing movable base 82 to rotate freely around axial member 84a.

[0108] In the second mount 32 in which this angle setting mechanism is provided only on the right end side, as shown in Figure 6(A), the rotation angle of the movable mount 82 is set according to the road surface inclination angle upward to the left, and the fire hydrant device 10 is positioned horizontally or at an inclination corresponding to the road surface inclination. However, for a road surface inclination upward to the right as shown in Figure 6(B), the left and right sides (one end side and the other end side in the longitudinal direction of the tunnel) of the fixed mount 80 and the movable mount 82 are swapped and positioned, and the rotation angle of the movable mount 82 is set according to the road surface inclination angle upward to the right, and the fire hydrant device 10 can be positioned horizontally or at an inclination corresponding to the road surface inclination.

[0109] In order to mount and fix the housing of the fire hydrant device 10 to the movable stand 82 of the second stand that has been installed with the left and right sides swapped when the road surface slope is different in this way, as shown in Figure 16 (A), the mounting holes for fixing the housing formed on the upper end surface of the movable stand 82 are formed so that when the second stand 32 is installed with the left and right sides swapped, they are positioned in the same position relative to the mounting holes on the housing side before and after the swap.

[0110] The mounting holes 76a, which are formed in pairs at the front and rear of the movable base 82 and separated into two locations in the longitudinal direction, are the mounting holes used when the second base 32 is installed on a sloping road surface that slopes upward to the left as shown in Fig. 16(A). The mounting holes 76b, which are formed in pairs at different positions on the movable base 82 and separated into two locations in the longitudinal direction, are the mounting holes used when the second base 32 is installed on a sloping road surface that slopes upward to the right as shown in Fig. 16(B), with the left and right sides reversed from the installation state shown in Fig. 16(A).

[0111] [d. Second and third angle setting mechanisms] (d1. Structure of the second angle setting mechanism) The second angle setting mechanism will be described in more detail with reference to Figures 17 to 19. Figure 19(A) shows the internal structure of the right end of the fixed base from the front when the maximum rotation angle is set to 2.0°, and Figure 19(B) shows the right end of the movable base. Figures 18 and 19(A) to (E) show settings for rotation angles of 0°, 0.5°, 1.0°, 1.5°, and 2.0°.

[0112] 17(A), this embodiment includes building block members 100, 101, 102, 103, and 104 corresponding to rotation angles of 0°, 0.5°, 1.0°, 1.5°, and 2.0° of the movable base 82 relative to the fixed base 80. The building block members 100 to 104 are sequentially assembled and fixed to form inclined surfaces 100a to 104a for setting any one of rotation angles of 0°, 0.5°, 1.0°, 1.5°, and 2.0° about the shaft member 84a inserted into the shaft hole 88a at the left end shown in FIG.

[0113] Here, the building block member 100 with a rotation angle of 0° is fixed with its inclined surface 100a with a rotation angle of 0° aligned with a line passing through the shaft holes 88a, 88b on both sides of the fixed base 80. In addition, the surfaces on which the building block members 100-104 overlap each other have mating portions 100b-103b formed thereon for alignment during assembly, with the inclined surfaces 100a-103a forming mating recesses and the opposing bottom surfaces forming mating protrusions.

[0114] The stacked building block members 100-104 are integrated by fixing the building block fixing member 98d, which abuts against the right end face, to each building block member with a bolt 105. Four types of building block fixing members (98a-98d) of different heights are prepared according to the number of building block members 101-104 to be stacked.

[0115] As shown in Fig. 17(B), a contact member 106 having a contact surface on its lower side that contacts the inclined surface 100a of the building block member 100 at a rotation angle of 0° in Fig. 16(A) is arranged in the depth direction of the movable base 82. When the abutment member 106 comes into contact with the inclined surfaces 100a to 104a of the stacked building block members 100 to 104, the rotation angle of the movable base 82 is set to one of 0°, 0.5°, 1.0°, 1.5°, and 2.0°.

[0116] (d2. Setting operation of rotation angle by second angle setting mechanism) The operation of setting the rotation angle using the second angle setting mechanism will be described in more detail. Figure 18(A) shows the case where the inclination angle α of the road surface line 34a on which the fixed base 80 is installed is 0°, and only the building block member 100 is fixed within the fixed base 80. The movable base 82 abuts against the building block member 100, so that the rotation angle α is 0°, and is positioned along the horizontal line 78a.

[0117] 18(B) shows the case where the inclination angle α of the road surface line 34a on which the fixed base 80 is installed is 0.5°. A building block member 101 with a rotation angle of 0.5° is stacked on top of a building block member 100 fixed to the fixed base 80, and a building block fixing member 98a is fixed to the building block members 100, 101 with a bolt 105 to integrate them. In this state, the left-end shaft member 84a shown in FIG. 8 is inserted into the shaft hole 88a to serve as the rotation center of the movable base 82, and the right-end shaft member 84b is removed to allow the movable base 82 to rotate freely. Next, the movable base 82 is abutted against the inclined surface 101a of the building block member 101 to set a rotation angle of 0.5°, and by fixing it using an appropriate structure, the movable base 82 is positioned along the horizontal line 78a.

[0118] The structure for fixing the angle-set movable base 82 to the fixed base 80 is arbitrary, but since the abutment member 106 of the movable base 82 shown in Fig. 17(B) abuts against the inclined surface 104a of the building block member 104 in Fig. 17(A), for example, to set a rotation angle of 2.0°, a longitudinal slot is formed in the abutment member 106 of the movable base 82, a screw hole is made in the inclined surface 104a of the building block member 104 where the slot is located, and a bolt is screwed into the screw hole via the slot to fix the movable base 82. This is the same for the other building block members 100 to 103.

[0119] The same applies to setting a rotation angle of 1.0° in Figure 18(C), a rotation angle of 1.5° in Figure 19(D), and a rotation angle of 2.0° in Figure 19(E). Building block members 101 to 104 are selected and stacked inside the fixed base 80, fixed to and integrated with building block fixing members 98b to 98d using bolts 105, and the movable base 82 is abutted against the inclined surfaces 102a to 104a of the building block members 102 to 104, thereby setting a rotation angle of 1.0° to 2.0°.

[0120] On the left end side of the second frame 32, building block members 100 to 104 are prepared which are bilaterally symmetrical to the right end side mentioned above, and the building block member 100 is fixed within the fixed frame 80. Building block members 101 to 104 are selected and stacked according to the rotation angle to be set, and are fixed together with the building block fixing members 98a to 98d using bolts 105, and the required rotation angle is set and fixed by abutting the movable frame 82 on the inclined surface of the building block member located at the top.

[0121] (d3. Third angle setting mechanism) The third angle setting mechanism will now be described in more detail. In the second angle setting mechanism described above, divided building block members 100-104 corresponding to each of the rotation angles 0° to 2.0° are prepared, but as in the third angle setting mechanism shown in Fig. 20, angle setting members 110-114 formed with inclined surfaces 110a-114a corresponding to rotation angles 0° to 2.0° may be prepared and selectively fixed to predetermined positions within the fixed frame 80, similar to the building block members 100-104 shown in Fig. 17(A).

[0122] 17 to 20 are also configured with an angle setting mechanism on only one side in order to simplify the structure, and when the second mount 32 is installed with the left and right sides swapped, the mounting holes of the movable mount 82 that secures the housing of the fire hydrant device 10 are formed so that they are in the same position relative to the mounting holes on the housing side before and after the swap.

[0123] [e. Fourth angle setting mechanism] The fourth angle setting mechanism will be described in more detail. Figure 21 shows an embodiment of the second frame 32 equipped with the fourth angle setting mechanism, with Fig. 21(A) showing a plan view, Fig. 21(B) showing a front view, and Fig. 21(C) showing a right side view. Also, Fig. 22 shows the main part of the fourth angle setting mechanism provided on the right end side of the frame in Fig. 21, with Fig. 22(A) showing a front view, Fig. 22(B) showing a plan view, and Fig. 22(C) showing a right side view.

[0124] (e1. Configuration of the fourth angle setting mechanism) 21, the fourth angle setting mechanism includes a fixed block member 116 and a movable block member 118. The fixed block member 116 is a steel member, and is fixed by welding or the like at two locations in the front-to-rear direction (depth direction) of the bottom plate 80b disposed at the bottom of the fixed frame 80. As shown in FIG. 22, the fixed block member 116 is formed with a first inclined surface 116a that slopes upward to the left (slopes downward to the right), and the inclination angle of the first inclined surface 116a is arbitrary but is set to, for example, 45°.

[0125] The movable block member 118 is also a steel member, and is disposed on the bottom plate 80b between the two fixed block members 116 so as to be freely movable in the longitudinal direction. The movable block member 118 is also formed with a second inclined surface 118a that is inclined upward to the right (downward to the left), which is the opposite inclination to the first inclined surface 116a of the fixed block member 116. The inclination angle of the second inclined surface 118a is arbitrary, but is, for example, 45°, the same as that of the first inclined surface 116a.

[0126] As shown in Figure 21(A), a guide opening 124 is formed in the longitudinal direction in the bottom plate 80b of the fixed base 80, along which the movable block member 118 moves. As shown in Figure 22(A), a screw hole 121 is formed in the bottom of the movable block member 118 in the vertical direction, and a lock bolt 120 is screwed in from below through the guide opening 124. Therefore, by loosening the lock bolt 120, the movable block member 118 can be moved in the longitudinal direction along the guide opening 124.

[0127] As shown in Fig. 22(A), when viewed from the front, the first inclined surface 116a of the fixed block member 116 and the second inclined surface 118 of the movable block member 118 intersect with each other to form a V-groove 130 that is offset in the depth direction, and the shaft member 84b on the movable base 82 side is placed in the V-groove 130. As shown in Fig. 21(A), the shaft member 84b is removed from the right end side of the second base 32 and inserted into the V-groove 130 from the rear side of the base to a position where it passes through the V-groove 130, as shown by shaft member 84b', and then removed through the slit opening 122, and is prevented from coming out by a nut 186b. The structure for inserting and placing the shaft member 84b' in the V-groove 130 will be described in detail later.

[0128] (e2. Relationship between the moving distance of the movable block member and the rotation angle of the movable stand) The relationship between the moving distance of the movable block member 118 and the rotation angle of the movable base 82 will be described in more detail with reference to FIG.

[0129] Figure 23(A) shows a schematic diagram of the change in the rotation angle of the movable base 82 when the movable block member 118 is moved relative to the fixed block member 116. As shown in Figure 23(A), the fixed base 116 is positioned along an axis 136 that connects the center of the leftmost shaft member 84a and the center of the rightmost shaft hole 88b.

[0130] The left end of the movable base 82 is supported by the fixed base 80 with the shaft member 84a as the center of rotation, and in the initial position with a rotation angle of 0°, the right end is supported by the shaft member 84b placed in the V-groove 130 corresponding to the intersection P of the two inclined surfaces, and the axis 138 of the movable base 82, which connects the center of the shaft member 84a and the center of the shaft member 84b placed in the V-groove 130, is in the same position as the axis 136 of the fixed base 80, overlapping with it.

[0131] When the movable block member 118 is moved to the left from the initial position where the rotation angle θ of the movable base 82 is 0°, the second inclined surface 118a moves to the left relative to the fixed first inclined surface 116a, the V-groove 130 corresponding to the intersection P of the two inclined surfaces moves diagonally upward and to the left along the first inclined surface 116a, and the shaft member 84b placed in the V-groove 130 moves in the same manner, thereby increasing the rotation angle θ of the movable base 82.

[0132] Here, the relationship between the left-right movement distance x1 of the movable block member 118 and the up-down movement distance y1 of the intersection point P of the two inclined surfaces will be described in more detail. If the movable block member 118, which is in its initial position, is moved, for example, to the left by a distance x1, the intersection point P of the two inclined surfaces moves to the intersection point Q of the two inclined surfaces, thereby moving upward by a distance y1, and the shaft member 84b moves to the position of the shaft member 84b', and the rotation angle θ increases.

[0133] Fig. 23(B) shows coordinates for determining the relationship between the horizontal movement distance x1 of the movable block member 118 and the vertical movement distance y1 of the intersection of the two inclined surfaces. In Fig. 23(B), a straight line 200 indicating the fixed first inclined surface 116a is defined as y = -ax, a straight line 300 indicating the initial position of the second inclined surface 118a is defined as y = ax, and a straight line 400 obtained by moving the straight line 300 leftward is defined as y = ax + b.

[0134] The intersection point of the line 200 and the line 400, which is obtained by moving the line 300 to the left, is P2. As is well known, the coordinates of the intersection point P2 can be calculated by solving the simultaneous equations that show that the coordinates of the line 200 and the line 400 coincide with each other, as follows: x=-b / 2a formula (1) y=b / 2 formula (2) is given as:

[0135] Here, the intercept b when the line 300 is moved to the left (-x direction) by a distance x1 is b=ax1 The amount of movement y1 of the intersection point P2 in the upward direction (+y direction) at this time is calculated from equation (2) as follows: y1=ax1 / 2 This becomes:

[0136] In this embodiment, the inclination angle of the straight lines corresponding to the first and second inclined surfaces 116a and 118a is set to 45°, so the inclination a is a=1. Therefore, the upward movement distance y1 of the intersection point P2 is y1=x1 / 2 This becomes:

[0137] 23(A), when the movable block member 118 is moved leftward by a distance x1, the intersection P of the two inclined surfaces moves upward by y1=x1 / 2, that is, to an intersection Q of the two inclined surfaces at a height half the movement distance of the movable block member 118. Accordingly, the shaft member 84b of the movable base 82 also moves the same distance as the intersection of the two inclined surfaces, and the movable base 82 can be rotated to a rotation angle θ indicated by the shaft 1138.

[0138] The inclination angles of the first inclined surface 116a and the second inclined surface 118a are arbitrary, and the values ​​of the slope a and intercept b of the straight line corresponding to the inclined surface are determined accordingly, and the relationship between the left-right movement distance x1 of the movable block member 118 and the up-down movement distance y1 of the movable platform 82 is determined accordingly.

[0139] (e3. Specific structure of the fourth angle setting mechanism) The specific structure of the fourth angle setting mechanism will be described in more detail. Figures 24 and 25 show the details of the fourth angle setting mechanism located on the right end side of the second frame 32 shown in Figure 21, with Figure 24(A) being a front view, Figure 24(B) being a front cross section, Figure 24(B) being a plan view, and Figure 25 being a right side view. Figure 26 shows the details of the right end side of the movable frame, with Figure 26(A) being a front view and Figure 26(B) being a right side view.

[0140] As shown in Figure 24, fixed block members 116 are fixed to both sides of the bottom plate 80b on the right end side of the upward-open fixed base 80, dividing it in the front-to-rear direction, and a movable block member 118 is arranged between them so as to be movable in the left-to-right direction, using a lock nut 120 screwed from below through a guide opening 124 as a guide axis.

[0141] Here, as shown in Figure 24, the fixed base 80 has L-shaped angle irons facing each other and connected in the depth direction by a bottom plate 80b, but to prevent the heads of the lock bolts 120 from protruding downward from the bottom surface of the fixed base 80, a spacer 83 is placed between the angle iron and the bottom plate 80b as shown in Figure 25, forming a deep space to accommodate the heads of the lock bolts 120. For this reason, when the fixed base 80 of the second base 32 is attached and fixed to the first base 30 installed on the road surface of the guard passage 34 as shown in Figure 6, the lock bolts 120 do not protrude and do not hinder the attachment work.

[0142] A downward-opening movable base 82 is placed inside the fixed base 80, and when the left end of the movable base 82 is supported by an axis to rotate the right end shown in the figure up and down, as shown in Figure 24 (C), the shaft member 84b is removed from the right end and passed from the rear member surface of the fixed base 80 and the movable base 82 to the front side as shown in shaft member 84b' and fixed with nut 186b, thereby placing the shaft member 84b' in the V-groove 130 formed by the intersection of the first and second inclined surfaces 116a, 118b.

[0143] Here, in order to pass the shaft member 84b removed from the right end side of the fixed frame 80, a slit opening 122 is formed in the front member surface along the first inclined surface 116, as shown in Figure 24 (A), and a similar slit opening (not shown) is also formed in the opposing rear member surface.

[0144] 26, a slit opening 132 is formed in the front member surface of the movable member base 82 to allow the shaft member 84b' to pass through, and a similar slit opening (not shown) is also formed in the opposing rear member surface of the movable member base 82. The slit opening 132 is an elongated hole formed in the longitudinal direction along the center line of a rotation angle of 0° that passes through the center of the shaft member 84b disposed in the V-groove 130 formed in the initial position of the movable block member 118. Therefore, when the shaft member 84b moves obliquely along the first inclined surface 116 as the movable block member 118 moves, the slit opening 132 restricts the up-and-down movement of the shaft member 84b with respect to the movable base 82 and allows relative movement in the left-right direction (sliding movement in the left-right direction), thereby changing the rotation angle of the movable base 82.

[0145] As shown in FIG. 24(B), the shaft member 84b' arranged in the V-groove 130 moves diagonally upward and left along the first inclined surface 116a as the movable block member 118 moves leftward, and moves from the initial position where the rotation angle of the movable base 82 is 0° to a position indicated by the shaft member 84b'' where the rotation angle is 2°, for example.

[0146] Here, the rotation angle is set to change in steps of 0.5°, 1.0°, and 1.5° in 0.5° increments from the initial position of a rotation angle of 0° to a rotation angle of 2°. However, the rotation angle of movable base 82 changes continuously (steplessly) according to the movement of movable base 118, and it is possible to set any rotation angle within the range of, for example, 0° to 2°.

[0147] A fire hydrant device is attached and fixed to the upper end surface of the movable platform 82, and its load is applied to the shaft member 84b' passed through the slit opening 132, and then to the contact parts between the shaft member 84b' placed in the V-groove 130 and the first and second inclined surfaces 116a, 118a. This makes it possible for the highly rigid fixed block member 116 and movable block member 118 to receive and reliably support the load of the fire hydrant device.

[0148] (e4. Setting operation of rotation angle by fourth angle setting mechanism) The operation for setting the tilt angle using the fourth angle setting mechanism will now be described in more detail. Figure 27(A) shows the setting of a rotation angle of 0.5°. First, the left-end shaft member 84a shown in Figure 21 is inserted into the shaft hole 88a to pivotally support the movable base 82, and the right-end shaft member 84b is removed to allow the movable base 82 to rotate freely.

[0149] Next, as shown in FIG. 21(C), the removed shaft member 84b' is passed through the V-groove 130 from the rear side of the base and secured with a nut 186b. Next, the lock bolt 120 is loosened, and the movable block member 118 is moved leftward so that its left tip is aligned with the rotation angle of 0.5° on the angle scale 126 shown in FIG. 24(C). After the movement, the lock bolt 120 is tightened to fix the member, and the shaft member 84b' passing through the V-groove 130 is also fixed by tightening the nut 186b. As a result, as shown in FIG. 27(A), the rotation angle of the movable base 82 is set to 0.5° for the fixed base 80 positioned along the road surface line 34a at an inclination angle of 0.5°, and the movable base 82 can be positioned horizontally along the horizontal line 78.

[0150] Similarly, by moving the left tip of the movable block member 118 leftward so that it aligns with a rotation angle of 1.0°, 1.5°, or 2.0° on the angle scale 126, the rotation angle of the movable platform 82 can be set to 1.0°, 1.5°, or 2.0°, for example, as shown in Figures 27(B), 28(C), and 28(D), and the movable platform 82 can be positioned horizontally along the horizontal line 78. Of course, the rotation angle of the movable platform 82 can be set to any angle within the range of 0° to 2.0° corresponding to the inclination angle of the road surface, for example, and the movable platform 82 can be positioned horizontally along the horizontal line 78.

[0151] In this way, when the inclination angle of the sloped road surface is known, the rotation angle for making the movable platform 82 horizontal can be simply and easily set by aligning the left tip of the movable lock member 118 with the angle that matches the inclination angle on the angle scale 126 shown in Figure 24(C), but when the inclination angle is not accurately known, the rotation angle for making the movable platform 82 horizontal can be simply and easily set by placing a spirit level on the movable platform 82 and moving the movable block member 118 so that the spirit level indicates horizontal. Also, the rotation angle for making the movable platform 82 horizontal can be set using both the angle scale 126 and the spirit level.

[0152] The fourth angle setting mechanism provided on the left end side of the second frame 32 is an angle setting mechanism that is symmetrical in left-right arrangement with the angle setting mechanism on the right end side described above. In order to simplify the structure, the fourth angle setting mechanism may be provided on only one side of the second frame 32 in the longitudinal direction.

[0153] Furthermore, the fourth angle setting mechanism is exemplified as a mechanism for setting the rotation angle of the movable base 82 in the range of 0° to 2.0°, but if it is desired to further increase the maximum value of the rotation angle, the angle setting mechanism comprising the fixed block member 116 and the movable block member 118 can be positioned closer to the center of the fixed base 80, thereby shortening the distance from the center of rotation to the angle setting mechanism.

[0154] [e. Modifications of the present invention] Modifications of the fire hydrant device and the mount according to the present invention will be described in more detail. In addition to the above-described embodiment, the fire hydrant device and the mount according to the present invention include the following modifications.

[0155] (Positional relationship between fixed and movable bases) Although the gantry in the above embodiment is configured such that the movable gantry is disposed inside the fixed gantry, it is also possible to configure such that the movable gantry is disposed outside the fixed gantry.

[0156] (Angle setting member) The first angle setting mechanism in the above embodiment is configured so that the load of the fire hydrant device 10 via the axial members 84a, 84b is supported by the angle setting members 90a, 90b, but if the strength of the fixed frame 80 can be ensured, it is also possible to configure it so that the load of the fire hydrant device 10 via the axial members 84a, 84b is supported by the angle setting holes 92a to 92d of the fixed frame 80 without using the angle setting members 90a, 90b.

[0157] (Angle setting mechanism that allows for stepless setting of rotation angle) The fourth angle setting mechanism in the above embodiment continuously sets the rotation angle between 0° and 2°. However, as another angle setting mechanism for continuously setting the rotation angle, a lifting mechanism that raises and lowers one end of a movable base pivotally supported on a fixed base can be used to continuously adjust the rotation angle. Any lifting mechanism can be used for this purpose. For example, a bolt can be placed facing upward on the fixed base, and the rotation angle of the movable base abutting the tip of the bolt can be continuously changed by turning the bolt. Alternatively, a known jack mechanism can be provided on the fixed base to continuously change the rotation angle of the movable base. In this case, since the weight of the fire hydrant device 10 attached to the base is approximately 100 kg, it is desirable to provide a separate support mechanism to support the load at the rotation angle adjusted by the lifting mechanism.

[0158] (1st and 2nd mounts) The above embodiment takes as an example a case where the stand 28 of the fire hydrant device 10 is configured from a first stand 30 and an angle-adjustable second stand 32 (a stand having a fixed stand 80, a movable stand 82, and an angle setting mechanism), but is not limited to this and includes a fire hydrant device that is installed on a guard walkway using only the angle-adjustable second stand 32 (a stand having a fixed stand 80, a movable stand 82, and an angle setting mechanism), and also includes the stand itself configured from the fixed stand 80, the movable stand 82, and the angle setting mechanism.

[0159] (Fire hydrant equipment installed without a box) Furthermore, the above embodiment takes as an example a case where a fire hydrant device is attached and fixed using a stand installed on the guard passageway without cutting out a box from the tunnel wall, but is not limited to this and includes an angle-adjustable stand for attaching and fixing a fire hydrant device that is installed by cutting out a box from the tunnel wall and embedding it in place.

[0160] (others) Furthermore, the present invention includes appropriate modifications that do not impair the objects and advantages thereof, and is not limited to the numerical values ​​shown in the above embodiments. [Explanation of symbols]

[0161] 10: Fire hydrant equipment 11a, 11b: Housing 12: Fire hydrant door 13a, 13b: decorative frame 14: Maintenance door 16: Fire extinguisher door 17: Peephole 18: Electric door 20: Red indicator light 22: Transmitter 24: Answer lamp 25: Telephone Jack 26: Tunnel wall 28: Stand 30: First stand 32: Second stand 34: Guard passage 34a: Road line 36: Road 38: Wall fixing member 40: Duct 42: Water main 44: Branch pipe 46: Gate valve 48: Water supply piping 50a: Valve storage section 50b: Hose storage section 52: Fire extinguisher storage compartment 54: Water tap 56: Fire hydrant valve 58: Automatic pressure regulating valve 60: Fire hydrant valve opening / closing lever 62: Hose 64: Hose storage frame 65: Pump start switch 66: Hose guide 68: Nozzle 70: Nozzle holder 72a, 72b: Terminal box 74: Fire extinguisher 76a, 76b: Mounting holes 78:Horizontal Line 80: Fixed stand 80a, 80b: Bottom plate 81a, 81b: Angle setting mechanism 82: Movable stand 83: Spacer 84a, 84b: Shaft member 86a, 86b, 93a-93d: Nuts 88a, 88b, 89a, 89b: Shaft holes 90a, 90b, 110-114: Angle setting members 92a~92d: Angle setting holes 94a~94d:Through holes 95a to 95d: Through holes 96a: Interlocking protrusion 96b: fitting recess 98a to 98d: Building block fixing parts 100-104: Building blocks 100a~104a: Inclined surface 100b~104b: Fitting part 106: Contact member 116: Fixed block member 116a: First slope 118: Movable block member 118a: Second slope 120: Rock bolt 121: screw hole 122,132:Slit opening 124: Guide opening 126: Angle scale 130:V groove

Claims

1. A fire hydrant device in which a housing is attached and fixed to a stand installed on the road surface of a tunnel guard passage, The frame is a fixed platform installed along the road surface in the longitudinal direction of the guard passage; a movable base having the housing attached and fixed to an upper end surface thereof, one end side of the longitudinal direction of which is supported by one end side of the fixed base, and the other end side of which is rotatable in a vertical direction relative to the other end side of the fixed base; an angle setting mechanism that sets and fixes a rotation angle of the movable platform relative to the fixed platform so that a predetermined inclination is achieved when the fixed platform is placed on the inclined road surface in the observer passage; A fire hydrant device comprising:

2. A stand for attaching and fixing a fire hydrant device housing to the road surface of a tunnel guard passage, a fixed platform installed along the road surface in the longitudinal direction of the guard passage; a movable base having the housing attached and fixed to an upper end surface thereof, one end side of the longitudinal direction of which is supported by one end side of the fixed base, and the other end side of which is rotatable in a vertical direction relative to the other end side of the fixed base; an angle setting mechanism that, when the guard passage has a road surface slope, sets and fixes the rotation angle of the movable platform relative to the fixed platform so that the fixed platform is positioned on the road surface slope to a predetermined slope; A stand characterized by comprising:

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