Cable racks, disaster prevention equipment storage devices, and disaster prevention equipment

Abstract

To provide a cable rack which improves workability of insertion work of a wiring cable inserted using a limited space in addition to securement of shield performance and further ensures waterproofness, a disaster prevention equipment housing device and a disaster prevention equipment.SOLUTION: In a cable rack 48, a first wire path 52 and a second wire path 54 which are divided into upper-lower two stages by a rack body 50 to insert a wiring cable into a housing of a fire hydrant device are formed, and a first rack door plate 56 and a second rack door plate 57 which are divided at a rack opening are provided in the state that the opposed end faces are in contact with each other. The first rack door plate 56 is supported and fixed by inserting a first bolt 60 into a long slot guide part 58 opened in the horizontal direction and the second rack door plate 57 is supported and fixed by inserting a second bolt 62 into a shaft hole. When insertion work of the wiring cable is carried out, each bolt is loosened and the first rack door plate 56 is moved so as to rotate while avoiding the interference with other opening / closing member and the rack opening is opened by rotating the first rack door plate 56 by using each bolt as a support axis.SELECTED DRAWING: Figure 7

Description

Technical Field

[0001] The present invention relates to a cable rack installed to form a wiring path such as a wiring cable, a disaster prevention equipment storage device having the cable rack, and a disaster prevention equipment including the disaster prevention equipment storage device.

Background Art

[0002] Conventionally, in a tunnel such as a highway or an expressway for automobiles, a fire hydrant device, which is a kind of disaster prevention equipment storage device shown in FIG. 15 for example, is installed. FIG. 15(A) shows the front of the fire hydrant device, FIG. 15(B) shows the front of the fire hydrant device with the maintenance door and the fire hydrant door opened and the fire extinguisher door removed, FIG. 15(C) shows a cross section seen from the top of the fire hydrant device, and FIG. 15(D) shows a partially cut-away right side view in the state of FIG. 15(B). In addition, in FIG. 15(B), illustration of the fire hose, valves, fire extinguishers, etc. inside the fire hydrant device is omitted, and FIG. 15(C) is a cross section at the position c-c shown by the broken line in FIG. 15(B).

[0003] Here, in the description of FIG. 15, the X-Y-Z directions are orthogonal to each other. Specifically, when looking at the front of the fire hydrant device as shown in FIG. 15(A), the X direction is the left-right direction, the Y direction is the up-down direction, and the Z direction is the front-back direction. Also, the +X side in the X direction is the right side, the -X side is the left side, the +Y side in the Y direction is the upper side, the -Y side is the lower side, the +Z side in the Z direction is the rear side, and the -Z side is the front side. This is the same in FIGS. 1 to 14 which are embodiments of the present invention.

[0004] As shown in Figure 15, in a conventional fire hydrant system 10, a fire hydrant storage section 16 of a housing 10a equipped with an openable and closable fire hydrant door 12 and a maintenance door 14 houses a fire hose 38 and valves (not shown), and two fire extinguishers (not shown) are stored in a fire extinguisher storage section 20 of a housing 10b equipped with an openable and closable fire extinguisher door 18 and an electrical door 22. The electrical door 22 is equipped with electrical equipment such as a red indicator light 24 supplied with AC100V power, a transmitter 25 supplied with DC48V power, a response lamp 26, and a telephone jack 27 (on the inside of the housing of the electrical door), and in cold regions, a space heater supplied with AC200V power is also installed.

[0005] Furthermore, the power supplied to these electrical devices is provided by wiring cables that are drawn from outside the fire hydrant system 10 to the fire hydrant storage section 16 of the housing 10a, passing through one of the spaces in the fire hydrant storage section 16, and connecting via terminal boxes 28a and 28b installed in the fire extinguisher storage section 20 of the housing 10b.

[0006] However, the fire hydrant storage section 16 of the fire hydrant system 10 contains a limited space where equipment such as a fire hose 38, an automatic pressure regulating valve, valves including fire hydrant valves and water taps, and a fire hydrant valve opening / closing lever are arranged. Furthermore, in order to meet the demand for space saving in the tunnel structure, the size of the fire hydrant system 10 is being reduced, so the space for routing wiring cables brought in from the outside to connect to the electrical equipment of the electrical door 22 is limited.

[0007] Given the limitations on wiring space, in conventional fire hydrant systems, as shown in Figures 15(B) to (D), wiring cables are routed by providing a cable rack 100 in the empty space at the upper front of the fire hydrant storage section 16, inserting the wiring cables brought in from the outside into the cable rack 100, and bringing them out towards the fire extinguisher storage section 20, where they are connected to terminal boxes 28a and 28b. [Prior art documents] [Patent Documents]

[0008] [Patent Document 1] Japanese Patent Publication No. 2016-055073 [Patent Document 2] Japanese Patent Publication No. 2018-139704 [Overview of the Initiative] [Problems that the invention aims to solve]

[0009] However, in conventional wiring cable routing using the cable rack 100, rainwater and other water can seep in through the gap between the maintenance door 14 and the decorative frame (the front panel in the housing 10a having an opening for arranging the fire hydrant door 12 and the maintenance door 14), potentially causing deterioration of the wiring cables. Therefore, the cable rack 100 is designed with the front side shielded and the upper part of the rear side open. When inserting wiring cables through the cable rack 100, the inside of the cable rack 100 cannot be seen from the front of the fire hydrant device 10. As a result, the insertion work has to be done by feel from the upper part of the open rear side of the cable rack 100, which makes the insertion work complicated and time-consuming.

[0010] Furthermore, conventional wiring cable routing systems typically involve routing both low-voltage (DC48V) cables and high-voltage (AC100V and / or AC200V) cables through the same cable rack. Here, "high-voltage" refers to electricity exceeding 48V, primarily used for energy purposes, while "low-voltage" refers to electricity below 48V, used for communication, control, information, etc.

[0011] Generally, when high-voltage cables such as AC100V and low-voltage cables such as DC48V are mixed, it is required to ensure a sufficient distance between them to prevent interference from noise, etc. However, even when attempting to insert low-voltage and high-voltage cables separately in the cable routing path within the cable rack 100 to ensure a sufficient distance, it is difficult to ensure an appropriate distance because the work is done by feel without visual inspection. As a result, there are cases where cables are inserted into the cable routing path within the cable rack 100 without maintaining an appropriate distance between them, which is a problem.

[0012] To solve the problem of the workability of such insertion work, it is conceivable to have a structure in which the front side of the cable rack is open, but since waterproofing and shielding cannot be ensured, measures to prevent deterioration of the wiring cables and noise from the outside to the wiring cables will be insufficient.Therefore, for example, one method is to install a cable rack with an open front side in order to ensure waterproofing at the rear side of the fire hydrant storage section 16 of the fire hydrant device 10, but the workability of insertion work worsens the further the cable rack 100 is from the rear of the fire hydrant storage section 16, so it is desirable to install the cable rack 100 as close to the front of the fire hydrant storage section 16 as possible, and there is a trade-off between measures to prevent deterioration of the wiring cables and the workability of insertion work.In addition, whether the cable rack 100 is designed with the upper part of the rear side open or the front side open, an opening is required to access the wiring cables in the routing path, and measures to prevent noise from the outside to the wiring cables will remain insufficient.

[0013] Furthermore, except for the serial transmission lines in Class AA tunnels, the wiring cables used in tunnel fire hydrant systems are not shielded cables for either low-voltage or high-voltage cables. When high-voltage and low-voltage cables are mixed and laid out in the cable rack 100, it is necessary to ensure as wide a distance as possible between them. However, the wiring space inside the housing of the fire hydrant system 10 is limited, restricting the width of the cable rack (width in the front-to-back direction), which presents a problem as it is not possible to achieve a large distance between high-voltage and low-voltage cables. In other words, even if the intended insertion work can be performed and the maximum possible distance between cables can be secured, the limited width of the cable rack (width in the front-to-back direction) means that the distance between cables is not sufficient, and countermeasures against noise interference between cables may be inadequate.

[0014] To address the insufficient countermeasures against noise interference between cables, shielded cables could be used for wiring. However, since the length of the wiring cables increases proportionally with the size of the tunnel, this would increase costs in large tunnels. Therefore, it is desirable to solve this problem at the fire hydrant system level, which is independent of the tunnel size.

[0015] The present invention aims to provide a cable rack that ensures shielding performance while improving the workability of insertion work when inserting wiring cables that are routed in a limited space, a disaster prevention equipment storage device having said cable rack, and disaster prevention equipment equipped with said disaster prevention equipment storage device, and further aims to ensure waterproofness. [Means for solving the problem]

[0016] (Cable rack 1) The present invention is a cable rack that forms a route for wiring cables inserted from an entry point to an exit point, Rack openings are provided in the exterior members that cover the perimeter of the track. At least a portion of the rack opening is made openable and closable by an opening / closing member that rotates around a predetermined support axis substantially perpendicular to the cable insertion direction. When the portion of the rack opening that can be opened and closed by the opening and closing member is closed, external access to the cable inserted into the wire passage is prohibited, and when at least a part of the rack opening that can be opened and closed by the opening and closing member is opened as the opening and closing member rotates a predetermined amount, external access to the cable inserted into the wire passage becomes possible through the open portion. It is characterized by this.

[0017] (Fixed member serving as a support shaft) The opening and closing member is supported and fixed at a position where at least a part of the rack opening is closed by the fixed member, thereby prohibiting external access to the cable inserted into the wire passage. The support and fixation by the fixed member is released, and at least a part of the rack opening that can be opened and closed by the opening and closing member is opened by a predetermined rotation with the fixed member as the support shaft, enabling external access to the cable inserted into the wire passage.

[0018] (Fixed member) The fixed member is a fastening member that tightens in the direction of rotation for opening at least a part of the rack opening of the opening and closing member.

[0019] (Conductive material) The exterior member and the opening and closing member are made of a conductive material.

[0020] (Plural wire passages) A plurality of wire passages are formed.

[0021] (Shield member covering the wire passage) At least one of the wire passages is further covered with a shield member.

[0022] (Shield member covering the wire inlet / outlet) At least one of the inlet and outlet for the wire is covered with a shield member having a cut for inserting the cable.

[0023] (Opening and closing member 1 of cable rack 1) The opening / closing member moves to a position where it does not interfere with other components of the cable rack during a predetermined rotation, and then opens at least a portion of the rack opening that is openable and closable by the opening / closing member during a predetermined rotation.

[0024] (Movement along the guide portion of the opening / closing member 1) The opening and closing member is It is equipped with a guide section that opens in a predetermined direction, The guide portion is supported and fixed in a position that closes at least a portion of the rack opening by inserting a fixing member, which serves as a support shaft during a predetermined rotation. The support and fixing by the fixing member are released, and the cable rack is moved to a position where it does not interfere with other components of the cable rack by moving the guide portion along the fixing member. Then, at least a portion of the rack opening, which can be opened and closed by the opening / closing member, is opened by a predetermined rotation.

[0025] (Divided arrangement of opening / closing member 1) The opening and closing members are a first opening and closing member and a second opening and closing member that are divided and arranged in the cable insertion direction corresponding to at least a portion of the rack opening and rotate around a predetermined support axis. At least one of the opening / closing members is movable in the direction of cable insertion, When either opening / closing member opens at least a portion of a rack opening that can be opened and closed by the opening / closing member with a predetermined rotation, the opening / closing member that is movable in the direction of cable insertion is moved so that the opening / closing member can rotate while avoiding interference with the other opening / closing member.

[0026] (Opening / closing member 2 of cable rack 1) The opening / closing member is equipped with a structure to avoid interference with other components of the cable rack when opening at least a portion of the rack opening, which is made openable and closable by the opening / closing member, with a predetermined rotation.

[0027] (Structure to avoid interference with opening / closing member 2) The opening and closing member has notches formed at predetermined positions to avoid interference with other components that make up the cable rack.

[0028] (Divided arrangement of opening / closing member 2) The opening and closing members are a first opening and closing member and a second opening and closing member that are divided and arranged in the cable insertion direction corresponding to at least a portion of the rack opening and rotate around a predetermined support axis. At least one of the opening / closing members has a notch formed in it to avoid interference with the other opening / closing member when opening at least a portion of the rack opening that can be opened and closed by the opening / closing member with a predetermined rotation.

[0029] (Arrangement of the first opening / closing member and the second opening / closing member) The first opening / closing member and the second opening / closing member are arranged so that their end faces, which are provided with sealing members, are in contact with each other.

[0030] (Opening / closing member 3 of cable rack 1) The opening / closing member is positioned so as not to interfere with other components of the cable rack when opening at least a portion of the rack opening, which is made openable and closable by the opening / closing member with a predetermined rotation.

[0031] (Divided arrangement of opening / closing member 3) The opening and closing members are a first opening and closing member and a second opening and closing member that are divided and arranged in the cable insertion direction corresponding to at least a portion of the rack opening and rotate around a predetermined support axis. The first opening / closing member and the second opening / closing member are positioned with a gap between them so as not to interfere with each other when opening at least a portion of the rack opening, which is made openable and closable by the opening / closing member with a predetermined rotation.

[0032] (Connecting structure of the first opening / closing member and the second opening / closing member) The first and second opening / closing members close the portion of the rack opening that can be opened and closed by the opening / closing members while connected via a connecting member positioned to close the rack opening between the first and second opening / closing members, and release the connection by the connecting member when either opening / closing member opens at least a portion of the rack opening that can be opened and closed by the opening / closing members with a predetermined rotation.

[0033] (Sealing material) When the rack opening, which is made openable and closable by the opening / closing member, is closed, a sealing member is positioned to fill the gap between the opening / closing member and the exterior member.

[0034] (Cable rack 2) In another embodiment of the present invention, a cable rack forms a cable path for wiring cables inserted from an entry point to an exit point, Rack openings are provided in the exterior members that cover the perimeter of the track. At least a portion of the rack opening is made openable and closable by an opening / closing member that slides in a predetermined direction. When the portion of the rack opening that can be opened and closed by the opening / closing member is closed, the cables inserted into the cable path cannot be accessed from the outside. However, when at least a portion of the rack opening that can be opened and closed by the opening / closing member is opened by a predetermined sliding movement of the opening / closing member, the cables inserted into the cable path can be accessed from the outside through the opened portion. It is characterized by the following:

[0035] (Disaster prevention equipment storage device, disaster prevention equipment) Furthermore, the present invention is characterized by a disaster prevention equipment storage device having the aforementioned cable rack, or by disaster prevention equipment equipped with said disaster prevention equipment storage device. [Effects of the Invention]

[0036] (Effect of Cable Rack 1) According to the cable rack of the present invention, when at least a portion of the rack opening is opened by a predetermined rotation of the opening / closing member, external access to the wiring cable inserted in the cable path becomes possible. This improves work efficiency when inserting wiring cables into the cable path, as the wiring cable inside the cable path can be accessed from the outside through the rack opening. Furthermore, since the opening of the rack opening by the opening / closing member is achieved by rotation, it can be implemented with a simple structure, can be easily opened and closed by anyone, and does not worsen the efficiency of the insertion work. In addition to insertion, it also improves work efficiency in replacement work.

[0037] Furthermore, the area around the cable routing path is covered with an exterior component, and when no wiring cable insertion work is being performed, at least a portion of the rack opening is closed by an opening / closing member to prevent external access to the wiring cables inserted into the cable routing path, thus ensuring the shielding of the cable routing path.

[0038] Furthermore, when wiring cables are not being routed, the wiring path is not exposed unnecessarily, ensuring waterproofing and preventing deterioration of the wiring cables.

[0039] (Effect of the fixed member that serves as the support axis) The fixing member is a fastening member such as a bolt and nut, and when wiring cables are not being routed, it supports and fixes the opening / closing member in a position that closes at least a portion of the rack opening. When at least a portion of the rack opening is opened to insert wiring cables, it can function as a support axis for a predetermined rotation to open it. Furthermore, by using a fastening member that tightens in the direction of rotation that opens at least a portion of the rack opening of the opening / closing member, it is possible to prevent the fixing member, which has been loosened to release the support and fixation of the opening / closing member, from becoming even looser and falling off and being lost.

[0040] (Effects of conductive materials and shielding materials) By using conductive materials for the exterior components and opening / closing components, shielding performance can be further improved. Furthermore, if shielding cannot be ensured due to the need to use resin components for the exterior components and opening / closing components, shielding performance can be ensured by further covering the wiring path with shielding components. Additionally, shielding performance can be further improved by covering the wiring cable insertion openings with shielding components.

[0041] (Effects of multiple railway lines) By forming, for example, two cable routing paths, with high-voltage cables running through one and low-voltage cables through the other, it is possible to ensure the maximum possible separation distance within the physically feasible range. Furthermore, the shielding can be enhanced by partitioning the cable routing paths, thereby reducing the impact of noise from high-voltage cables on low-voltage cables used for signal communication, etc. Also, when shielding materials are used to reduce the impact of noise, the separation distance can be reduced compared to when they are not provided, and as a result the dimensions of the cable rack can be reduced, making it possible to install the cable rack even in limited spaces. In addition, because wiring cables can be routed through separate cable routing paths, there are fewer overlapping wiring cables within the routing paths, making it easier to pull out wiring cables when replacing them or changing pump start switches.

[0042] (Effects of the opening / closing member 1 of the cable rack 1) The opening / closing member 1 moves to a position where it does not interfere with other members constituting the cable rack during a predetermined rotation, and then opens at least a portion of the rack opening that can be opened and closed by the opening / closing member with a predetermined rotation. In addition to being easy to open and close, the opening / closing member can be positioned without having to consider interference with other members constituting the cable rack due to rotation.

[0043] (Effect of movement along the guide portion of the opening / closing member 1) Moving the cable rack to a position that does not interfere with other components and opening the rack opening by a predetermined rotation can be achieved with a simple structure consisting of a guide part provided on the opening / closing member and a fixing member that supports and secures the opening / closing member, such as a fastening member like a bolt and nut.

[0044] (Effects of the opening / closing member 2 of cable rack 1) The opening / closing member 2 has the same effect as the opening / closing member 1, and by having a structure, such as a notch, to prevent the opening / closing member from interfering with other members of the cable rack, the opening / closing member does not need to move to a position where it does not interfere with other members of the cable rack, as is the case with the opening / closing member 1.

[0045] (Effects of the opening / closing member 3 of cable rack 1) In the opening / closing member 3, since it is positioned so as not to interfere with other members constituting the cable rack when it rotates a predetermined distance, there is no need to consider interference with other members when opening at least a portion of the rack opening by rotating the opening / closing member, and a structure to avoid interference, as in the opening / closing member 2, is also unnecessary.

[0046] (Effects of dividing and arranging opening / closing members 1 to 3) The opening / closing members 1 to 3 are divided into a first opening / closing member and a second opening / closing member, allowing the size of the rack opening to be adjusted by selecting which opening / closing member to open, and enabling the rack opening to be opened only to the extent required for the work.

[0047] (Effects of the arrangement of the first and second opening / closing members 1 and 2) Since the first opening / closing member and the second opening / closing member are arranged with their end faces, which are provided with sealing members, in contact with each other, the gap between the first opening / closing member and the second opening / closing member created by the division is filled, ensuring waterproofness.

[0048] (Connecting structure of the first and second opening / closing members of opening / closing member 3) The rack opening is closed by connecting the first opening / closing member and the second opening / closing member via a connecting member positioned to close the rack opening between them. This fills the gap between the first opening / closing member and the second opening / closing member created by the division, ensuring waterproofing.

[0049] (Effects of sealing material) When the rack opening, which can be opened and closed by the opening / closing member, is closed, the sealing member is positioned to fill the gap between the opening / closing member and the exterior member, thereby improving airtightness and ensuring higher waterproofness.

[0050] (Effect of Cable Rack 2) Cable rack 2 opens by sliding movement instead of rotation as cable rack 1, and has the same effect as cable rack 1.

[0051] (Storage device for disaster prevention equipment, effectiveness of disaster prevention equipment) The aforementioned cable rack-equipped disaster prevention equipment storage device, and the disaster prevention equipment equipped with said disaster prevention equipment storage device, have the same effect, so their explanation will be omitted. [Brief explanation of the drawing]

[0052] [Figure 1] This is an explanatory diagram showing a fire hydrant system for tunnels. [Figure 2] This is an explanatory diagram showing the internal structure of a fire hydrant system, viewed from the front with the door open. [Figure 3] This is an explanatory diagram showing the internal structure of a fire hydrant system in a cross-sectional view from above. [Figure 4] This is an explanatory diagram showing the right side of a fire hydrant system, partially cut away at the cable rack area. [Figure 5] This is an explanatory diagram showing the cable wiring system for a fire hydrant system. [Figure 6] This is an explanatory diagram showing the details of the wiring to the terminal box to which low-voltage cables are connected. [Figure 7] This is an explanatory diagram showing a first embodiment of a cable rack as a perspective view. [Figure 8] Figure 7 is an explanatory diagram showing the opening operation of the rack door panel of the cable rack. [Figure 9] This is an explanatory diagram showing the enclosure mounting structure of a cable rack. [Figure 10] This is an explanatory diagram showing a second embodiment of the cable rack as a perspective view. [Figure 11] Figure 10 is an explanatory diagram showing the opening operation of the rack door panel. [Figure 12] This is an explanatory diagram showing a third embodiment of the cable rack as a perspective view. [Figure 13] This is an explanatory diagram showing a fourth embodiment of the cable rack as a perspective view. [Figure 14] Figure 13 is an explanatory diagram showing the fourth embodiment of the cable rack, with front, right side, and cross-sectional views from the right side. [Figure 15] This is an explanatory diagram showing a cable rack installed in a conventional fire hydrant system. [Modes for carrying out the invention]

[0053] Embodiments of the cable rack according to the present invention will be described in detail below with reference to the drawings. However, the present invention is not limited to the following embodiments.

[0054] [Basic Concepts of the Embodiment] First, the basic concept of the embodiment will be explained. The embodiment is a cable rack that forms a route for wiring cables inserted from an inlet to an outlet, for example, a cable rack installed inside the housing of a tunnel fire hydrant device, which is a type of disaster prevention equipment storage device, and more specifically, a cable rack that forms a route in the fire hydrant storage section of the housing for wiring cables that pass through the fire hydrant storage section and connect to electrical equipment installed on the fire extinguisher storage section side.

[0055] "Wiring cable" refers to an electric wire with a conductive core covered in insulation, and includes concepts such as power lines, signal lines, transmission lines, and communication lines. It also includes single-core cables (one core wire) and multi-core cables (multiple core wires). "Cable rack" refers to any structure that forms a cable path, and includes cable trays and cable ducts for passing wiring cables.

[0056] Furthermore, a "cable path" is a passage through which wiring cables are inserted from an entry point to an exit point, and is surrounded by an exterior component with a rack opening. Moreover, "surrounded by an exterior component" does not mean that the exterior component must completely seal off the passage without any gaps; it is sufficient that the exterior component is covered to the extent that access to the cable path is not possible from anywhere other than the rack opening (excluding the entry and exit points).

[0057] Furthermore, the "rack opening" provided in the exterior member is designed so that at least a portion of it can be opened and closed by an opening / closing member that rotates around a predetermined support axis substantially perpendicular to the direction in which the wiring cables are inserted. When the portion that can be opened and closed by the opening / closing member is closed, the wiring cables inserted into the wiring track cannot be accessed from the outside, and when at least a portion of the portion that can be opened and closed by the opening / closing member is opened, the wiring cables inserted into the wiring track can be accessed from the outside through the open portion.

[0058] Furthermore, "accessible from the outside" means that it is not enough for the wiring to be visible from the outside; it means that it is possible to interfere with the wiring cables inside the wiring through the open part of the rack opening from the outside. "Not accessible from the outside" means that the rack opening does not need to be completely sealed without any gaps; it simply means that it is not possible to interfere with the wiring cables inside the wiring through the rack opening from the outside.

[0059] Furthermore, by supporting and fixing the opening / closing member with a fixing member in a position that closes at least a portion of the rack opening, external access to the wiring cables inserted into the track is prohibited. When the support and fixing by the fixing member is released, a predetermined rotation of the opening / closing member with the fixing member as the support axis opens at least a portion of the rack opening that is openable and closable by the opening / closing member, and the wiring cables inserted into the track are opened. External access to the cables may be permitted. Furthermore, the "fixing member" can be any member that can support and fix the opening / closing member in a position that closes at least a portion of the rack opening, for example, a fastening member such as a bolt and nut, and to prevent the fixing member from coming loose, the fixing member may be a fastening member that tightens in a direction that rotates in a way that opens the rack opening of the opening / closing member.

[0060] Furthermore, to improve shielding performance, the outer casing and opening / closing members may be made of conductive material, the cable routing may be further covered with a shielding member, and the cable entry and exit points may be covered with a shielding member having a notch for inserting the wiring cable. In addition, multiple cable routing points may be formed to ensure sufficient spacing between cables and reduce the effects of noise between cables. If multiple cable routing points are formed, the number and size of the routing points formed are arbitrary, as is the number of cable routing points and cable entry points covered with shielding members.

[0061] Furthermore, in order to ensure waterproofing, a sealing member may be placed to fill the gap between the opening / closing member and the exterior member when the rack opening, which is made openable and closable by the opening / closing member, is closed.

[0062] Here, the "opening / closing member" rotates around a predetermined support axis substantially perpendicular to the direction in which the wiring cable is inserted, thereby allowing at least a portion of the rack opening to be opened and closed. Its configuration is arbitrary, but examples include opening / closing members such as "opening / closing members 1 to 3".

[0063] The "opening / closing member 1" moves to a position where it does not interfere with other members constituting the cable rack when rotated for a predetermined time, and then opens at least a portion of the rack opening with a predetermined rotation. It is characterized by being able to move to a position where at least a portion of the rack opening can be opened by rotation without interfering with other members.

[0064] Furthermore, the mechanism and configuration that enable such movement and rotation are arbitrary, but for example, they can be realized by an opening / closing member with a guide portion that opens in a predetermined direction and a fixing member inserted through the guide portion.

[0065] The "opening / closing member 2" is equipped with a structure to avoid interference with other members constituting the cable rack when opening at least a portion of the rack opening, which is made openable and closable by the opening / closing member with a predetermined rotation, and is characterized in that it can open at least a portion of the rack opening without requiring movement to a position that does not interfere with other members constituting the cable rack, such as the opening / closing member 1. Furthermore, the structure to avoid interference with other members constituting the cable rack is arbitrary, but for example, it may be equipped with a notch formed at a predetermined position.

[0066] The "opening / closing member 3" is positioned so as not to interfere with other members constituting the cable rack when opening at least a portion of the rack opening with a predetermined rotation, and is characterized by not requiring movement to a position that does not interfere with other members constituting the cable rack, as is the case with the opening / closing member 1, nor does it require a structure to avoid interference with other members constituting the cable rack, as is the case with the opening / closing member 2.

[0067] Alternatively, the opening / closing members 1 to 3 may be first and second opening / closing members and second opening / closing members that are divided and arranged in the direction of insertion of wiring cables, corresponding to at least a portion of the rack opening.

[0068] Furthermore, the configuration of the divided "opening / closing members 1" is arbitrary, but for example, at least one of the opening / closing members can be moved in the direction in which the wiring cables are inserted, and when one of the opening / closing members opens at least a part of the rack opening with a predetermined rotation, the opening / closing member that can be moved in the direction in which the wiring cables are inserted can be moved so that it can rotate without interfering with the other opening / closing member, thereby making it possible to open at least a part of the rack opening.

[0069] Furthermore, although the configuration of the divided "opening / closing members 2" is arbitrary, for example, a notch is formed in at least one of the opening / closing members to avoid interference with the other opening / closing member when opening at least a part of the rack opening with a predetermined rotation, thereby enabling the opening of at least a part of the rack opening.

[0070] Furthermore, in order to fill the gap between the first and second opening / closing members created by the division and to ensure waterproofing, the first and second opening / closing members of the divided opening / closing member 1 and opening / closing member 2 may be arranged so that their end faces, which are provided with sealing members, are in contact with each other.

[0071] Furthermore, the configuration of the divided "opening / closing members 3" is arbitrary, but for example, the first opening / closing member and the second opening / closing member are arranged with a gap between them so as not to interfere with each other when opening at least a part of the rack opening with a predetermined rotation, thereby enabling the opening of at least a part of the rack opening. In addition, in order to fill the gap between the first opening / closing member and the second opening / closing member created by the division and to ensure waterproofing, the portion of the rack opening that can be opened and closed by the opening / closing members is closed when the opening / closing members are connected via a connecting member arranged to close the rack opening between the first opening / closing member and the second opening / closing member, and the connection by the connecting member is released when either opening / closing member opens at least a part of the rack opening with a predetermined rotation.

[0072] Furthermore, in an alternative form of the cable rack, instead of the opening / closing member rotating around a predetermined support axis substantially perpendicular to the direction in which the wiring cables are inserted, the opening / closing member may slide in a predetermined direction to allow at least a portion of the rack opening to be opened and closed.

[0073] The following describes a specific embodiment. In the specific embodiment shown below, we will describe a case where the "fire hydrant device installed in a tunnel" is a type of disaster prevention equipment storage device, the "railway" is "a first railway and a second railway divided into upper and lower levels", and the "wiring cable" includes "a high-voltage cable supplying AC100V power" and "a low-voltage cable supplying DC48V power".

[0074] [Specific details of the embodiment] We will now provide a more detailed explanation of the cable racks for fire hydrant systems. The explanation will be divided into the following sections. a. Fire hydrant system b. Internal structure of a fire hydrant system c. Fire hydrant system cable wiring system d. First embodiment of a cable rack e. Second embodiment of a cable rack f. Third embodiment of a cable rack g. Fourth embodiment of a cable rack h. Modifications of the present invention

[0075] [a. Fire hydrant system] A fire hydrant device for a tunnel, which is an example of a disaster prevention equipment storage device in which the cable rack of this embodiment is installed, will be described in more detail. As shown in Figure 1, the fire hydrant device 10 has a structure divided into a housing 10a on the fire hydrant storage side and a housing 10b on the fire extinguisher storage side, and decorative frames 11a and 11b are attached to the front of the housings 10a and 10b.

[0076] The door opening of the decorative frame 11a on the fire hydrant storage side is divided into upper and lower sections. A forward-tilting fire hydrant door 12 that opens downward by hinge 12a is installed on the lower side of the door opening, and a maintenance door 14 that opens upward by hinge 14a is installed on the upper side of the door opening. Inside the fire hydrant storage section, a fire hose with a nozzle and valves including a fire hydrant valve are stored.

[0077] On the left side of the door opening of the decorative frame 11b on the fire extinguisher storage side, a fire extinguisher door 18 is provided that opens horizontally to the left by a hinge 18a, allowing for the storage of, for example, two fire extinguishers in the fire extinguisher storage area inside. In addition, a viewing window 29 is provided on the lower side of the fire extinguisher door 18, allowing the presence or absence of fire extinguishers to be checked from the outside.

[0078] To the right of the door opening of the decorative frame 11b, an electrical panel door 22 is provided, which has a door structure that opens horizontally to the right by a hinge 22a. The electrical panel door 22 is equipped with electrical equipment such as a red indicator light 24, a transmitter 25, and a response lamp 26, and a telephone jack is provided inside the housing of the electrical panel door 22.

[0079] The red indicator light 24 is always illuminated so that the location of the fire hydrant device 10 can be seen from a distance. In the event of a fire, pressing the transmitter 25 and turning on the push-button switch sends a transmission signal to the fire prevention receiver panel in the electrical room, which outputs a fire alarm. A response signal is then sent from the fire prevention receiver panel, causing the red indicator light 24 to flash and the response lamp 26 to light up.

[0080] [b. Internal structure of a fire hydrant system] The internal structure of the fire hydrant system will be explained in more detail. As shown in Figures 2 to 4, the inside of the housing 10a, which forms the fire hydrant storage section 16, is divided into a valve storage section 16a and a hose storage section 16b. Figure 3 is a cross-section of the area indicated by the dashed line aa in Figure 2.

[0081] In the valve storage section 16a, the water supply piping 31, which is drawn in from the outside, is connected to a water tap 30 and also branches downward, connecting to a fire hose 38 via a fire hydrant valve 32 and an automatic pressure regulating valve 34. The fire hydrant valve 32 is opened and closed by a fire hydrant valve opening / closing lever 36. When the fire hydrant valve opening / closing lever 36 is opened or closed, the fire hydrant valve 32 is opened and closed in conjunction with a known wire linkage mechanism, and a pump start interlocking switch 44 provided in the control box is turned on or off. In addition, a pump start switch 42 for use by the fire brigade is provided to the upper right of the water tap 30.

[0082] The hose storage section 16b is provided with a hose storage frame 35, which stores the fire extinguishing hose 38 that is pulled in from below by winding it inward clockwise or counterclockwise. A nozzle 40 is attached to the end of the fire extinguishing hose 38 that is pulled out through the hose guide 37, and the nozzle 40 is detachably held in the nozzle holder 41.

[0083] The interior of the housing 10b (the side with the fire extinguisher door 18) is a fire extinguisher storage section 20, which houses two fire extinguishers 39 as shown in Figure 3. Terminal boxes 28a and 28b are installed on the rear of the fire extinguisher storage section 20. A red indicator light 24 provided on the electrical door 22 is connected to terminal box 28a via a wiring cable, and a transmitter 25, response lamp 26, and telephone jack 27 provided on the electrical door 22 are connected to terminal box 28b via a wiring cable. Furthermore, a pump start switch 42 and a pump start interlock switch 44 provided on the valve storage section 16a are connected via a wiring cable.

[0084] A cable rack 48 is installed in the fire hydrant storage section 16 within the housing 10a. The cable rack 48 forms a first cable track 52 and a second cable track 54, which are divided into upper and lower sections as shown in Figure 4, and is installed in an empty space within the housing 10a, for example, in the empty space at the upper front of the housing 10a. Furthermore, as shown in Figures 2 and 3, the left-right arrangement of the cable rack 48 is such that it extends from approximately the center of the valve storage section 16a through the hose storage section 16b to just before the partition wall 21 that separates it from the fire extinguisher storage section 20, and a cable passage opening is provided in the partition wall 21 opposite the left end of the cable rack 48.

[0085] The high-voltage cables brought into the valve storage section 16a from the outside are inserted into the first track 52 from the entry point at the right end of the cable rack 48, pulled out through the first track 52 towards the fire extinguisher storage section 20, and connected to the terminal box 28a. The low-voltage cables brought into the valve storage section 16a from the outside, as well as the wiring cables from the pump start switch 42 and the pump start interlock switch 44, are inserted into the second track 54 from the entry point at the right end of the cable rack 48, pulled out through the second track 54 towards the fire extinguisher storage section 20, and connected to the terminal box 28b.

[0086] [c. Cable wiring system for fire hydrant equipment] The cable wiring system for the electrical equipment installed in the fire hydrant system will be explained in more detail. As shown in Figure 5, the electrical equipment installed in the fire hydrant system 10 includes a red indicator light 24, a transmitter 25, a response lamp 26, and a telephone jack 27, which are located on the electrical door 22 of the fire extinguisher storage section 20. The red indicator light 24 is connected to the terminal block of the terminal box 28a, and the transmitter 25, response lamp 26, and telephone jack 27 are connected to the terminal block of the terminal box 28b.

[0087] Furthermore, the valve storage section 16a of the fire hydrant system 10 is equipped with a pump start switch 42 and a pump start interlock switch 44, which are connected by cable wiring through the cable rack 48 to the terminal block of the terminal box 28b provided in the fire hydrant storage section 20.

[0088] A high-voltage cable 53, which supplies AC100V power from an external source, is drawn into the valve storage section 16a of the fire hydrant system 10, and is pulled out to the fire hydrant storage section 20 side through the first track 52 of the cable rack 48 and connected to the terminal block of the terminal box 28a, thereby activating the red indicator light 24 Connected.

[0089] Furthermore, a low-voltage cable 55 (a single multi-core cable, but shown as a telephone cable 55a, response lamp cable 55b, transmitter cable 55c, and switch cable 55d in the cable wiring system of Figure 5), which is a multi-core cable that supplies DC48V power from the outside, is pulled into the valve storage section 16a of the fire hydrant device 10, and is led out to the fire hydrant storage section 20 side through the second track 54 of the cable rack 48. By connecting to the terminal block of the terminal box 28b, it is connected to the telephone jack 27 of the electrical door 22, the response lamp 26, the transmitter 25, and the pump start switch 42 and pump start interlock switch 44 provided in the valve storage section 16b.

[0090] As shown in Figure 6, the pump start switch 42 and the pump start interlock switch 44 in the valve housing section 16b are connected to the terminal box 28b as a parallel circuit, with the wiring of the pump start interlock switch 44 connected to the terminals of the pump start switch 42. In addition, the wiring of the pump start switch 42 and the pump start interlock switch 44 are connected to the wiring of the transmitter 25 via a jumper wire between the terminal block of the terminal box 28b to which the wiring of the pump start switch 42 and the pump start interlock switch 44 is connected.

[0091] [d. First embodiment of a cable rack] A first embodiment of the cable rack 48 will be described in more detail. The first embodiment corresponds to the opening / closing member 1 of the cable rack 1 in the "means for solving the problem," and after the opening / closing member moves to a position where it does not interfere with other members constituting the cable rack during a predetermined rotation, it opens at least a part of the rack opening that is openable and closable by the opening / closing member with a predetermined rotation.

[0092] The configuration of the opening / closing member 1 is arbitrary, but the explanation will be given in the case where the first opening / closing member and the second opening / closing member are arranged in a state where they are divided in the left and right directions and their end faces are in contact with each other, the first opening / closing member is a "first rack door panel" that has a guide portion that opens in the left and right directions and allows movement in the left and right directions and rotates around a fixing member as a support axis, the second opening / closing member is a "second rack door panel" that rotates around a fixing member as a support axis, the "fixing member" that supports and fixes the opening / closing member is a fastening member called a "bolt and nut", and the exterior member is a "rack body" provided so that the rack opening opens to the front of the track.

[0093] Figure 7 shows a perspective view of the first embodiment of the cable rack 48, with Figure 7(A) showing the rack door in the closed position and Figure 7(B) showing the first rack door in the moved position. Figure 8 shows the front view of the cable rack 48 shown in Figure 7, illustrating an example of how the rack door can be opened.

[0094] As shown in Figures 7 and 8, the cable rack 48 consists of a rack body 50, a first rack door panel 56, a second rack door panel 57, a first bolt 60 and a second bolt 62, and nuts (not shown) into which the first bolt 60 and the second bolt 62 are screwed. The rack body 50 is, for example, a long, box-shaped member with a rack opening on its front, and has a structure that covers the front, entry and exit points of the first and second cable lines 52 and 54, which are divided into upper and lower sections. In addition, an upper edge portion 50a is integrally formed on the upper part of the rack opening of the rack body 50, and mounting holes 65 for attachment to the housing are formed at two locations on the left and right sides of the upper edge portion 50a.

[0095] The first rack door panel 56 and the second rack door panel 57 are plate members with vertical (up and down) and horizontal (left and right) dimensions that cover the rack opening and a portion of the upper edge 50a, and are provided in accordance with the rack opening of the rack body 50. The first rack door panel 56, located to the right of the rack opening, has an elongated guide hole portion 58 that opens horizontally in the upper right section, and the second rack door 57, located to the left of the rack opening, has an axial hole formed in the upper left corner.

[0096] The first rack door panel 56 is supported and fixed in a closed position on the right side, which is part of the rack opening of the rack body 50, by inserting the first bolt 60 through the elongated guide portion 58 and the through hole in the upper edge portion 50a of the rack body 50, and screwing the first bolt 60 into a nut fixed by welding to the back of the through hole. The second rack door panel 57 is supported and fixed in a closed position on the left side, which is part of the rack opening of the rack body 50, by inserting the second bolt 62 through the shaft hole and the through hole in the upper edge portion 50a of the rack body 50, and screwing the second bolt 62 into a nut fixed by welding to the back of the through hole.

[0097] Furthermore, a seal 66, such as a rubber gasket, is provided on the end face of the second rack door panel 57 at the contact portion between the end faces of the first rack door panel 56 and the second rack door panel 57, and the opposing end faces of the first rack door panel 56 and the second rack door panel 57 are supported and fixed in contact with each other. The seal 66 may be provided on the end face of the first rack door panel 56, or on the end faces of both the first rack door panel 56 and the second rack door panel 57.

[0098] Furthermore, as shown in Figure 8, a seal 67, such as a rubber gasket, is provided along the upper edge of the rack opening on the upper edge 50a of the rack body 50 where the upper back surfaces of the first rack door panel 56 and the second rack door panel 57 are located. This seal fills the gap between the first rack door panel 56 and the second rack door panel 57 and the rack body 50 when the rack opening is closed by the first rack door panel 56 and the second rack door panel 57. Alternatively, the seal 67 may be provided separately on the first rack door panel 56 and the second rack door panel 57, rather than on the upper edge 50a side of the rack body.

[0099] Figure 9 shows an example of the mounting structure of the cable rack 48 to the housing 10a of the fire hydrant device 10. The mounting structure of the cable rack 48 to the housing 10a is arbitrary, but for example, it is fixed by bolts 96 and nuts 98 to the mounting holes of an L-shaped mounting member 95 provided in the ceiling inside the housing 10a on the back side of the decorative frame 11a located above the door rack opening where the maintenance door 14 is provided, and to the mounting holes 65 in the upper edge 50a of the rack body 50, and a cable passage opening 94 is opened in the partition wall 21 opposite the cable exits at the left ends of the first cable passage 52 and the second cable passage 54 of the rack body 50.

[0100] When opening the first rack door panel 56 and the second rack door panel 57 of the cable rack 48 to insert wiring cables, as shown in Figure 9, with the maintenance door 14 open, as shown in Figure 7(B), the support fixing of the first rack door panel 56 is released by loosening the first bolt 60, and the first rack door panel 56 is moved to the right by the sliding of the elongated hole guide portion 58 along the loosened first bolt 60, thereby releasing contact with the end face of the second rack door panel 57. Subsequently, when the second bolt 62 is loosened, the support fixing of the second rack door panel 57 is released, and as a result, as shown in Figure 8, the first rack door panel 56a rotates downward counterclockwise by its own weight with the first bolt 60 passing through the elongated hole guide portion 58 as the support axis, and the second rack door panel 57a rotates downward clockwise by its own weight with the second bolt 62 as the support axis, and the central part of the rack opening of the rack body 50 is opened wide.

[0101] As a result, it becomes possible to access the wiring cables inserted into the first wiring section 52 and the second wiring section 54 from outside the housing 10a through the rack opening. For example, it becomes possible to insert wiring cables into the first wiring section 52 or the second wiring section 54 from the entry point at the right end of the cable rack 48 according to the wiring diagram, and pull them out from the exit point at the left end, in a simple, easy, and efficient manner.

[0102] Furthermore, by making the first bolt 60 a bolt that tightens counterclockwise and the second bolt 62 a bolt that tightens clockwise, it is possible to prevent the first bolt 60 and the second bolt 62 from loosening further and coming off when the rack is rotated in the direction that opens the rack opening, thus preventing the bolts from coming off and the rack door panel from detaching from the rack body 50.

[0103] Furthermore, if external access is to be possible by opening only the first rack door panel 56, it is not necessarily required to open the second rack door panel 57, and the first rack door panel 56 may be provided without any division.

[0104] Furthermore, the cable rack 48 is divided into two upper and lower sections, the first cable track 52 and the second cable track 54. For example, by passing high-voltage cables through the first cable track 52 and low-voltage cables through the second cable track 54, it is possible to ensure a sufficient distance between the two, thereby reliably reducing the impact of noise on the low-voltage cables.

[0105] Furthermore, the presence of seals 66 and 67 fills the gaps and enhances airtightness, preventing water from entering the first and second cable lines 52 and 54 from the outside, and thus preventing deterioration of the wiring cables passed through the cable rack 48.

[0106] Furthermore, in this embodiment, since there is a difference in whether the first rack door panel 56 and the second rack door panel 57 have elongated guide sections or axial holes, the arrangement of the first rack door panel 56 and the second rack door panel 57 may be swapped. Also, the end faces of the first rack door panel 56 and the opposing end faces of the second rack door panel 57 may be fitted together like a concave and a convex shape.

[0107] Furthermore, although the upper edge portion 50a is provided to support and fix the first rack door panel 56 and the second rack door panel 57 to the rack body 50, they may be supported and fixed to any part of the enclosure 10a instead of the rack body 50, as long as the rack opening can be opened to allow access from the outside.

[0108] Furthermore, the positions of the elongated guide portion 58 of the first rack door panel 56 and the shaft holes of the second rack door panel 57, and the direction of rotation to open the rack opening are not limited to those shown in Figures 7 and 8. For example, the positions of the elongated guide portion 58 of the first rack door panel 56 and the shaft holes of the second rack door panel 57 may be set to predetermined positions closer to the upper center, and the rotation to open the rack opening may be set to downward clockwise for the first rack door panel 56 and downward counterclockwise for the second rack door panel 57. In cases where sliding in the left-right direction may cause interference between the rack door panels during rotation, as in this case, the front-to-back positional relationship between the first rack door panel 56 and the second rack door panel 57 may be adjusted by adjusting the degree of loosening of the first bolt 60 and the second bolt 62, etc., so that they can rotate without interfering with each other.

[0109] [e. Second embodiment of the cable rack] A second embodiment of the cable rack 48 will be described in more detail. The second embodiment corresponds to the opening / closing member 2 of the cable rack 1 in the "means for solving the problem," and is equipped with a structure to avoid interference with other members constituting the cable rack when the opening / closing member rotates to a predetermined extent.

[0110] The configuration of the opening / closing member 2 is arbitrary, but the explanation will be given in the case where the first opening / closing member and the second opening / closing member are arranged in a state where they are divided in the left and right directions and their end faces are in contact with each other, the first opening / closing member and the second opening / closing member have notches formed in the corners to avoid interference with the other opening / closing member when they rotate, and they are a "first rack door panel" and a "second rack door panel" that rotate with a fixing member as a support axis, the "fixing member" that supports and fixes the opening / closing member is a fastening member called a "bolt and nut", and the exterior member is a "rack body" provided so that the rack opening opens to the front of the track.

[0111] Figure 10 shows a perspective view of a second embodiment of the cable rack 48. Figure 11 shows the front view of the cable rack 48 shown in Figure 10, illustrating an example of how the rack door panel can be opened.

[0112] As shown in Figure 10, the cable rack 48 of this embodiment consists of a rack body 50, a first rack door panel 56, a second rack door panel 57, a first bolt 60 and a second bolt 62, and nuts (not shown) into which the first bolt 60 and the second bolt 62 are screwed. The rack body 50 is the same as in the first embodiment, and is, for example, a long box-shaped member with a rack opening on the front, and has a structure that covers the front, entry and exit points of the first and second cable routes 52 and 54, which are divided into upper and lower sections. In addition, an upper edge portion 50a is integrally formed on the upper part of the rack opening of the rack body 50, and mounting holes 65 for attachment to the housing side are formed at two locations on the left and right of the upper edge portion 50a.

[0113] The first rack door panel 56 and the second rack door panel 57 are plate members with vertical (up and down) and horizontal (left and right) dimensions that cover the rack opening and a portion of the upper edge 50a, and are provided in accordance with the rack opening of the rack body 50. The first rack door panel 56, located on the right side of the rack opening, has a shaft hole formed in the upper right corner, and a notched guide portion 74 with an open top is formed near the corner where the notch 75 is formed on the upper left. The second rack door panel 57, located on the left side of the rack opening, has a shaft hole formed in the upper left corner, and a notched guide portion 74 with an open top is formed near the corner where the notch 75 is formed on the upper right.

[0114] The first rack door panel 56 is supported and fixed in a closed position, with the right side of the rack opening of the rack body 50 closed, by inserting the first bolt 60 through the notched guide portion 74 and the through hole in the upper edge portion 50a of the rack body 50, and inserting the second bolt 62 through the shaft hole and the through hole in the upper edge portion 50a of the rack body 50, and screwing the first bolt 60 and the second bolt 62 into nuts fixed by welding to the back side of each through hole. The second rack door panel 57 is similarly supported and fixed in a closed position, with the left side of the rack opening of the rack body 50 closed. The first rack door panel 56 and the second rack door panel 57 are supported and fixed in a state where their opposing end faces are in contact with each other.

[0115] The notch 75 is formed to prevent the upper corner of the contact end surface from interfering with the other rack door panel and hindering rotation when the first rack door panel 56 is rotated downward counterclockwise and / or the second rack door panel 57 is rotated downward clockwise in order to open the rack opening using the second bolt 62 as a support axis.

[0116] When opening the first rack door panel 56 and the second rack door panel 57 of the cable rack 48 to insert wiring cables, as shown in Figure 11, the first bolt 60 and the second bolt 62 are loosened to release the support fixing of the first rack door panel 56 and the second rack door panel 57. As a result, the first bolt 60 comes out of the notched guide portion 74 of the first rack door panel 56 and the second rack door panel 57, causing the first rack door panel 56a to rotate downward counterclockwise by its own weight with the second bolt 62 as the support axis, and the second rack door panel 57a to rotate downward clockwise by its own weight with the second bolt 62 as the support axis, thereby greatly opening the central part of the rack opening of the rack body 50.

[0117] As a result, it becomes possible to access the wiring cables inserted into the first wiring section 52 and the second wiring section 54 from outside the housing 10a through the rack opening. For example, it becomes possible to insert wiring cables into the first wiring section 52 or the second wiring section 54 from the entry point at the right end of the cable rack 48 according to the wiring diagram, and pull them out from the exit point at the left end, in a simple, easy, and efficient manner.

[0118] Furthermore, by making the second bolt 62 on the first rack door panel 56 side a bolt that tightens counterclockwise, and the second bolt 62 on the second rack door panel 57 side a bolt that tightens clockwise, it is possible to prevent the first bolt 60 from loosening further and coming off when the rack door panel is rotated in the direction that opens the rack opening, thus preventing the first bolt 60 from coming off and the rack door panel from detaching from the rack body 50.

[0119] Furthermore, if external access is possible by opening only the first rack door panel 56 or the second rack door panel 57, it is not necessarily required to open the other rack door panel, and either one of the rack door panels may be provided without a split arrangement.

[0120] Furthermore, similar to the first embodiment, the cable rack 48 is divided into two upper and lower sections, a first cable track 52 and a second cable track 54. For example, by passing high-voltage cables through the first cable track 52 and low-voltage cables through the second cable track 54, a sufficient distance can be maintained between the two, thereby reliably reducing the impact of noise on the low-voltage cables.

[0121] Furthermore, similar to the first embodiment, a rubber gasket, for example, may be provided as a seal to close the gap between the contact portion of the end faces of the first rack door panel 56 and the second rack door panel 57, and between the upper back surfaces of the first rack door panel 56 and the second rack door panel 57 and the upper edge 50a of the rack body 50, thereby preventing water from entering the first and second cable lines 52 and 2nd cable lines 54 from the outside and preventing deterioration of the wiring cables passed through the cable rack 48.

[0122] Furthermore, the end faces of the first rack door panel 56 and the opposing end faces of the second rack door panel 57 may be shaped to fit together like a recess and a protrusion. In addition, although the first rack door panel 56 and the second rack door panel 57 are supported and fixed to the rack body 50 by providing the upper edge portion 50a, they may be supported and fixed to any part of the housing 10a instead of the rack body 50, as long as the rack opening can be opened to allow access from the outside.

[0123] [f. Third embodiment of the cable rack] A third embodiment of the cable rack 48 will be described in more detail. The third embodiment corresponds to the opening / closing member 3 of the cable rack 1 in the "means for solving the problem," and is positioned so that the opening / closing member does not interfere with other members constituting the cable rack when it rotates in a predetermined manner.

[0124] The configuration of the opening / closing member 3 is arbitrary, but it is explained in the case where the first and second opening / closing members are separated in the left-right direction and arranged with a gap between them so that they do not interfere with each other when they rotate, the first and second opening / closing members are a "first rack door panel" and a "second rack door panel" that rotate around a fixed member as a support axis, the "fixing member" that supports and fixes the opening / closing members is a fastening member consisting of a "bolt and nut", the exterior member is a "rack body" provided so that the rack opening opens to the front of the track, and the connecting member arranged to close the rack opening between the first and second opening / closing members is a "connecting door panel" equipped with a latch and hinge.

[0125] Figure 12 shows a perspective view of a third embodiment of the cable rack 48.

[0126] As shown in Figure 12, the cable rack 48 of this embodiment consists of a rack body 50, a first rack door panel 56, a second rack door panel 57, a connecting door panel 78, bolts 71, and nuts (not shown) into which the bolts 71 are screwed. The rack body 50 is the same as in the first embodiment, and is, for example, a long box-shaped member with a rack opening on the front, and has a structure that covers the front, entry and exit points of the first and second cable lines 52 and 54, which are divided into upper and lower sections. In addition, an upper edge portion 50a is integrally formed on the upper part of the rack opening of the rack body 50, and mounting holes 65 for attachment to the housing side are formed at two locations on the left and right of the upper edge portion 50a.

[0127] The first rack door panel 56 and the second rack door panel 57 are plate members with vertical (up and down) and horizontal (left and right) dimensions that cover the rack opening and a portion of the upper edge 50a, and are provided in accordance with the rack opening of the rack body 50. The first rack door panel 56, located on the right side of the rack opening, has a shaft hole formed in the upper right corner, and the second rack door panel 57, located on the left side of the rack opening, has a shaft hole formed in the upper left corner.

[0128] The first rack door panel 56 is supported and fixed in a closed position on the right side of the rack opening of the rack body 50 by inserting bolts 71 through the shaft hole and through holes in the upper edge 50a of the rack body 50, and screwing the bolts 71 into nuts that are welded to the back of the through holes. The second rack door panel 57 is similarly supported and fixed in a closed position on the left side of the rack opening of the rack body 50. The first rack door panel 56 and the second rack door panel 57 are positioned with a gap between them so that they do not interfere with each other when rotated.

[0129] The connecting door panel 78 is provided between the first rack door panel 56 and the second rack door panel 57, and is a plate member with vertical (up and down) and horizontal (left and right) dimensions that covers the rack opening and a part of the upper edge 50a between the first rack door panel 56 and the second rack door panel 57. It is rotatably connected to the second rack door panel 57 by a hinge 80 and detachably connected to the first rack door panel 56 by a known snap lock 82. The ring 82a of the snap lock 82 provided on the first rack door panel 56 side is locked to the lever 82b of the snap lock 82 provided on the connecting door panel 78 side, thereby connecting and fixing the first rack door panel 56 and the second rack door panel 57 when they are in the position where the rack opening is closed.

[0130] When opening the first rack door panel 56 and the second rack door panel 57 of the cable rack 48 to insert wiring cables, the lever 82b of the latch lock 82 is opened to release the locking of the ring 82a and release the connection between the first rack door panel 56 and the second rack door panel 57. Subsequently, the bolt 71 is loosened to release the support fixing of the first rack door panel 56 and the second rack door panel 57. As a result, the first rack door panel 56 rotates downward counterclockwise by its own weight with the bolt 71 as the support axis, and the second rack door panel 57 rotates downward clockwise by its own weight with the second bolt 71 as the support axis, and the central part of the rack opening of the rack body 50 is opened wide.

[0131] As a result, it becomes possible to access the wiring cables inserted into the first wiring section 52 and the second wiring section 54 from outside the enclosure 10a through the rack opening. For example, it becomes possible to insert the wiring cables into the first wiring section 52 or the second wiring section 54 from the entry point at the right end of the cable rack 48 according to the wiring diagram, and pull them out from the exit point at the left end, in a simple, easy, and efficient manner.

[0132] Furthermore, by making the bolt 71 on the first rack door panel 56 side a counter-clockwise tightening bolt, and the bolt 71 on the second rack door panel 57 side a clockwise tightening bolt, it is possible to prevent the bolt 71 from loosening further and coming off when the rack door panel is rotated in the direction that opens the rack opening, thus preventing the bolt 71 from coming off and the rack door panel from detaching from the rack body 50.

[0133] Furthermore, if external access is possible by opening only the first rack door panel 56 or the second rack door panel 57, it is not necessarily required to open the other rack door panel, and either one of the rack door panels may be provided without a split arrangement.

[0134] Furthermore, similar to the first embodiment, the cable rack 48 is divided into two upper and lower sections, a first cable track 52 and a second cable track 54. For example, by passing high-voltage cables through the first cable track 52 and low-voltage cables through the second cable track 54, a sufficient distance can be maintained between the two, thereby reliably reducing the impact of noise on the low-voltage cables.

[0135] Furthermore, similar to the first embodiment, a seal, such as a rubber gasket, is provided at a predetermined location as needed to seal the gap between the upper back surfaces of the first rack door panel 56 and the second rack door panel 57 and the upper edge 50a of the rack body 50, thereby preventing water from entering the first and second cable lines 52 and 54 from the outside and reliably preventing deterioration of the wiring cables passed through the cable rack 48. In addition, a seal may also be provided between the first and second rack door panels 56 and 57 and the connecting door panel 78 to seal the gap between them.

[0136] Furthermore, although the upper edge portion 50a is provided to support and fix the first rack door panel 56 and the second rack door panel 57 to the rack body 50, they may be supported and fixed to any part of the enclosure 10a instead of the rack body 50, as long as the rack opening can be opened to allow access from the outside.

[0137] [g. Fourth embodiment of the cable rack] A fourth embodiment of the cable rack 48 will be described in more detail. The fourth embodiment corresponds to the opening / closing member of the cable rack 2 in the "means for solving the problem," and the opening / closing member opens at least a part of the rack opening by sliding in a predetermined direction instead of rotating.

[0138] The configuration of the opening and closing members is arbitrary, but the explanation will be given in the case where the first opening and closing member and the second opening and closing member are arranged in a state where they are in contact with each other's end faces, the first opening and closing member is a "first rack door panel" that slides in the left and right direction, the second opening and closing member is a "second rack door panel" that is fixed to close a part of the rack opening, and the exterior member is a "rack body" provided so that the rack opening opens to the front of the track.

[0139] Figure 13 shows a perspective view of the fourth embodiment of the cable rack, with Figure 13(A) showing the rack door in the closed position and Figure 13(B) showing the first rack door in the moved position. Figure 14 shows the cable rack from Figure 13 divided into (A) front view, (B) cross-section of the central part viewed from the right side, and (C) right side view. Note that Figure 14(B) is a cross-section of the area indicated by the dashed line bb in Figure 14(A).

[0140] As shown in Figures 13 and 14, the cable rack 48 of this embodiment consists of a rack body 50, a first rack door panel 56, a second rack door panel 57, a sliding support member 84 that allows the first rack door panel 56 to slide in the left-right direction, a fixing support member 86 that fixes the second rack door panel 57, and bolts 90 and nuts 92 that fasten connecting pieces 56b and 57b on the opposing end faces of the first rack door panel 56 and the second rack door panel 57.

[0141] The rack body 50 is the same as in the first embodiment, and is, for example, a long, box-shaped member with a rack opening on the front, and has a structure that covers the front, entry and exit points of the first track 52 and second track 54, which are divided into upper and lower sections. In addition, an upper edge portion 50a is integrally formed on the upper part of the rack opening of the rack body 50, and mounting holes 65 for attachment to the housing are formed at two locations on the left and right of the upper edge portion 50a.

[0142] The first rack door panel 56 and the second rack door panel 57 are plate members that are provided corresponding to the rack opening of the rack body 50 and have a vertical width (up and down direction) and a horizontal width (left and right direction) that cover a part of the rack opening. The first rack door panel 56, located on the right side of the rack opening, has a U-shaped guide piece 56c at its upper end for sliding in the left-right direction relative to the sliding support member 84, and a connecting piece 56b formed extending forward from the end face opposite to the second rack door panel 57. The second rack door 57, located on the left side of the rack opening, has a connecting piece 57b formed extending forward from the end face opposite to the first rack door panel 56.

[0143] Furthermore, connecting holes are formed in the connecting pieces 56b and 57b, and the first rack door panel 56 and the second rack door panel 57 are connected and fixed by inserting the bolt 90 through the connecting holes of the connecting pieces 56b and 57b and screwing it into the nut 92 while the connecting pieces 56b and 57b are in contact with each other.

[0144] The sliding support member 84 is fixed to the upper edge 50a of the rack body 50 at a position corresponding to the first rack door panel 56, and has a U-shaped guide rail 88 formed at its lower part that fits onto the guide piece 56c of the first rack door panel 56, thereby supporting the first rack door panel 56 so that it can slide freely in the left-right direction. The fixed support member 86 is fixed to the upper edge 50a of the rack body 50 at a position corresponding to the second rack door panel 57, and supports and fixes the second rack door panel 57 so as to close the left side of the rack opening.

[0145] When opening the first rack door panel 56 of the cable rack 48 to insert wiring cables, as shown in Figure 13(B), the bolt 90 is removed from the nut 92 to release the connection between the first rack door panel 56 and the second rack door panel 57, and then the first rack door panel 56 is slid to the right, thereby opening the central part of the rack opening of the rack body 50.

[0146] As a result, it becomes possible to access the wiring cables inserted into the first wiring section 52 and the second wiring section 54 from outside the housing 10a through the rack opening. For example, it becomes possible to insert wiring cables into the first wiring section 52 or the second wiring section 54 from the entry point at the right end of the cable rack 48 according to the wiring diagram, and pull them out from the exit point at the left end, in a simple, easy, and efficient manner.

[0147] Furthermore, similar to the first embodiment, the cable rack 48 is divided into two upper and lower sections, a first cable track 52 and a second cable track 54. For example, by passing high-voltage cables through the first cable track 52 and low-voltage cables through the second cable track 54, a sufficient distance can be maintained between the two, thereby reliably reducing the impact of noise on the low-voltage cables.

[0148] Furthermore, the guide rail 88, which fits into the guide piece 56c of the first rack door panel 56, functions as a water receiver, preventing water from entering the first and second cable routes 52 and 54 from the outside, and reliably preventing deterioration of the wiring cables that pass through the cable rack 48.

[0149] Furthermore, as a modification of this embodiment, both the first rack door panel 56 and the second rack door panel 57 may be made slidable in the left-right direction.

[0150] [h. Variations of the present invention] Modifications of the cable rack according to the present invention will be described in more detail. In addition to the embodiments described above, the cable rack of the present invention includes the following modifications.

[0151] (Cable rack for disaster prevention equipment storage) The above embodiment uses a cable rack for a fire hydrant system as an example of a disaster prevention equipment storage device, but is not limited to this. It can be applied to any device that provides a cable rack for routing wiring cables. For example, it can be applied to cable racks for fire extinguisher boxes or alarm systems that have electrical panels on which electrical equipment is arranged, or to cable racks for storage boxes of disaster prevention equipment equipped with electrical equipment installed indoors in buildings, etc.

[0152] (Installation location of cable racks and cable routing procedures) In the above embodiment, the cable rack 48 is installed in the empty space at the upper front of the housing 10a, and it is assumed that the wiring cables are inserted from the front of the housing 10a. However, the cable rack is installed in a different empty space for each device, and the position where the wiring cables are inserted depends on the location of the empty space and the location of the opening of the device. Therefore, the position of the rack opening of the cable rack and the rotation or sliding of the rack door panel to open the rack opening are not limited to this, and are determined according to the location and environment in which the cable rack is installed.

[0153] (The cable routing formed by the cable rack) In the above embodiment, the cable routing is divided into two sections vertically, a first cable routing and a second cable routing. However, the system is not limited to this configuration. If the number of wiring cables to be inserted increases further, additional cable routing may be provided. Conversely, if there is no need to divide the cable routing, it may be a single cable routing. Furthermore, it is not necessary to divide the routing vertically; any arrangement that allows access to the wiring cables within each cable routing through the open rack opening is acceptable. In this embodiment, the rack opening is provided in the rack body to open the entire front of the cable routing, but the size of the opening is arbitrary as long as it allows access to the wiring cables within the cable routing through the open rack opening.

[0154] Furthermore, the entry and exit points of the wiring track may be covered with shielding material. Covering the entry and exit points with shielding material improves the shielding performance of the wiring track, thereby reducing the effects of noise and other interference. Additionally, by making a notch in the shielding material for inserting wiring cables, wiring cables can be inserted without having to remove the shielding material. Moreover, if multiple wiring tracks are formed, it is not necessary to cover all of them with shielding material; only certain wiring tracks may be covered.

[0155] Furthermore, the area around the track may be further covered with a shielding material, such as a shielding sheet. The shielding sheet can further improve shielding performance and reduce the effects of noise, etc. Also, if multiple track lines are formed, it is not necessary to cover all of them with a shielding sheet, but rather to cover only some of the track lines with a shielding sheet.

[0156] (others) Furthermore, the present invention includes appropriate modifications that do not impair its purpose and advantages, and is not limited by the numerical values ​​shown in the above embodiments. [Explanation of Symbols]

[0157] 10: Fire hydrant system 10a, 10b: Enclosure 11a, 11b: Decorative frame 12: Fire hydrant door 14: Maintenance Door 16: Fire hydrant storage area 16a: Valve storage compartment 16b: Hose storage compartment 18: Fire extinguisher door 20: Fire extinguisher storage compartment 21: Bulkhead 22: Electric Door 24: Red indicator light 25: Transmitter 26: Response lamp 27: Phone hijacking 28a, 28b: Terminal box 30: Water tap 31: Water supply piping 32: Fire hydrant valve 34: Automatic pressure regulating valve 35: Hose storage frame 36: Fire hydrant valve opening / closing lever 37: Hose Guide 38: Fire hose 40: Nozzle 42: Pump start switch 44: Pump start-linked switch 48,100: Cable rack 50: Rack body 50a: Upper edge 52: First railway line 53: High-voltage cables 54: Second railway line 55: Low-voltage cables 56: First rack door panel 56b, 57b: Connection piece 56c: Guide piece 57: Second rack door panel 58: Slotted guide section 60: First bolt 62: Second bolt 65: Mounting holes 66,67: Seal 71,90,96: Bolt 74: Notched guide section 75: Notch 78: Connecting door panel 80: Hinge 82: Snap lock (snap lock) 82a: Ring 82b: Lever 84: Sliding support member 86: Fixed support member 88: Guide rail 92,98: Nut 94: Cable access point 95: Mounting parts

Claims

1. A cable rack that forms a route for wiring cables inserted from an entry point to an exit point, Rack openings are provided in the exterior member that covers the perimeter of the aforementioned cable route. At least a portion of the rack opening is made openable and closable by an opening / closing member that rotates around a predetermined support axis substantially perpendicular to the cable insertion direction, When the rack opening, which is openable and closable by the opening / closing member, is closed, the cable inserted into the cable path cannot be accessed from the outside. When at least a portion of the rack opening, which is openable and closable by the opening / closing member, is opened by a predetermined rotation of the opening / closing member, external access to the cable inserted into the cable path becomes possible through the opened portion. The opening and closing member is The fixing member supports and fixes the cable inserted into the cable path in a position that closes at least a portion of the rack opening, thereby preventing external access to the cable. The support and fixing by the fixing member is released, and by the predetermined rotation with the fixing member as the support shaft, at least a portion of the rack opening, which is openable and closable by the opening / closing member, is opened, allowing external access to the cable inserted into the cable path. The cable rack is characterized in that the fixing member is a fastening member that tightens in a rotational direction that opens at least a portion of the rack opening of the opening / closing member.

2. A cable rack according to claim 1, A cable rack characterized in that the exterior member and the opening / closing member are made of a conductive material.

3. A cable rack according to claim 1 or 2, The cable rack is characterized by having multiple cable routing channels.

4. A cable rack according to any one of claims 1 to 3, A cable rack characterized in that at least one of the aforementioned cable routes is further covered with a shielding member.

5. A cable rack according to any one of claims 1 to 4, A cable rack characterized in that at least one of the cable entry port and the cable exit port is covered by a shielding member having a notch for inserting the cable.

6. A cable rack that forms a route for wiring cables inserted from an entry point to an exit point, Rack openings are provided in the exterior member that covers the perimeter of the aforementioned cable route. At least a portion of the rack opening is made openable and closable by an opening / closing member that rotates around a predetermined support axis substantially perpendicular to the cable insertion direction, When the rack opening, which is openable and closable by the opening / closing member, is closed, the cable inserted into the cable path cannot be accessed from the outside. When at least a portion of the rack opening, which is openable and closable by the opening / closing member, is opened by a predetermined rotation of the opening / closing member, external access to the cable inserted into the cable path becomes possible through the opened portion. The cable rack is characterized in that the opening / closing member moves to a position where it does not interfere with other members constituting the cable rack during the predetermined rotation, and then opens at least a portion of the rack opening which is openable and closable by the opening / closing member during the predetermined rotation.

7. A cable rack according to claim 6, The opening and closing member is It is equipped with a guide section that opens in a predetermined direction, The guide portion is supported and fixed in a position where the fixing member that serves as the support shaft is inserted during the predetermined rotation, thereby closing at least a portion of the rack opening. A cable rack characterized by releasing the support and fixing by the fixing member, moving the cable rack to a position where it does not interfere with other members constituting the cable rack by moving the guide portion along the fixing member, and then opening at least a portion of the rack opening, which is made openable and closable by the opening / closing member, by a predetermined rotation.

8. A cable rack according to claim 6, The opening and closing members are a first opening and closing member and a second opening and closing member that are divided and arranged in the direction of cable insertion corresponding to at least a portion of the rack opening and rotate around a predetermined support axis. At least one of the opening / closing members is movable in the direction in which the cable is inserted. A cable rack characterized in that, when either opening / closing member opens at least a portion of the rack opening which is openable and closable by the opening / closing member with a predetermined rotation, the opening / closing member is moved so that the opening / closing member can rotate while avoiding interference with the other opening / closing member.

9. A cable rack according to any one of claims 1 to 5, The cable rack is characterized in that the opening / closing member has a structure for avoiding interference with other members constituting the cable rack when opening at least a part of the rack opening that can be opened and closed by the opening / closing member with a predetermined rotation.

10. A cable rack according to claim 9, The cable rack is characterized in that the opening and closing member has a notch formed at a predetermined position as a structure to avoid interference with other members constituting the cable rack.

11. A cable rack according to claim 9, The opening and closing members are a first opening and closing member and a second opening and closing member that are divided and arranged in the direction of cable insertion corresponding to at least a portion of the rack opening and rotate around a predetermined support axis. A cable rack characterized in that at least one opening / closing member has a notch formed therein to avoid interference with the other opening / closing member when opening at least a portion of the rack opening that is openable and closable by the opening / closing member with a predetermined rotation.

12. A cable rack according to claim 8 or 11, A cable rack characterized in that the first opening / closing member and the second opening / closing member are arranged in a state where their end faces, which are provided with sealing members, are in contact with each other.

13. A cable rack according to any one of claims 1 to 5, The cable rack is characterized in that the opening / closing member is positioned so as not to interfere with other members constituting the cable rack when opening at least a portion of the rack opening, which is made open and closed by the opening / closing member with a predetermined rotation, is opened.

14. A cable rack according to claim 13, The opening and closing members are a first opening and closing member and a second opening and closing member that are divided and arranged in the direction of cable insertion corresponding to at least a portion of the rack opening and rotate around a predetermined support axis. The cable rack is characterized in that the first opening / closing member and the second opening / closing member are arranged with a gap between them so as not to interfere with the other opening / closing member when opening at least a portion of the rack opening that can be opened and closed by the opening / closing member with a predetermined rotation.

15. A cable rack according to claim 14, The cable rack is characterized in that the first opening / closing member and the second opening / closing member are connected via a connecting member positioned to close the rack opening between the first opening / closing member and the second opening / closing member, and the connection by the connecting member is released when either opening / closing member opens at least a portion of the rack opening that is openable and closable by the opening / closing member by a predetermined rotation.

16. A cable rack according to any one of claims 1 to 15, A cable rack characterized in that a sealing member is positioned to fill the gap between the opening / closing member and the exterior member when the portion of the rack opening that can be opened and closed by the opening / closing member is closed.

17. A disaster prevention equipment storage device characterized by having a cable rack according to any one of claims 1 to 16.

18. Disaster prevention equipment characterized by comprising a disaster prevention equipment storage device as described in claim 17.

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