JP2024077731A - Disaster prevention panel housing structure - Google Patents

Abstract

[Problem] To provide a housing structure for a disaster prevention panel to be installed in disaster prevention equipment including a disaster prevention receiving panel for a tunnel disaster prevention equipment and a fire receiving panel for a fire alarm equipment, which facilitates work on the inside of the housing during manufacturing in a factory or the like and during installation on site.
[Solution] A disaster prevention receiving panel 10 for a tunnel disaster prevention equipment as a disaster prevention panel installed in a disaster prevention facility comprises, as a housing structure of the disaster prevention receiving panel 10, a box-shaped housing 40, a front door 42 provided in a door opening formed on the front of the housing 40 so as to be freely opened and closed, a right side door 46 provided in a door opening formed on the right side of the housing so as to be freely opened and closed, and a left side door 50 provided in a door opening formed on the left side of the housing so as to be freely opened and closed.
[Selected figure] Figure 3

Description

The present invention relates to a housing structure of a disaster prevention panel installed in disaster prevention equipment including a disaster prevention receiving panel for a tunnel disaster prevention equipment, a fire receiving panel for a fire alarm equipment, etc.
Regarding.

Traditionally, tunnel disaster prevention equipment has been installed in tunnels on expressways and motorways to protect people and vehicles from fires and other accidents that occur inside the tunnel.

Such tunnel disaster prevention equipment includes devices and equipment such as fire detectors, manual reporting devices, and emergency telephones for monitoring and reporting fires, as well as fire hydrants for extinguishing fires and preventing the spread of fires, and water spray devices that spray fire water from a water spray head to protect the tunnel structure from fires. A disaster prevention receiving panel is installed to monitor and control the terminal devices installed in these tunnel disaster prevention equipment, thereby constructing the tunnel disaster prevention equipment.

Even within buildings and other facilities, fire alarm systems are installed to protect people and facilities from fires and other similar events. Such fire alarm systems monitor for fires by installing fire detectors in each monitored area within a building, such as rooms, staircases, and hallways. When a fire is detected by the fire detector, the fire detector sends a fire detection signal to a fire receiving panel, which then outputs a fire alarm.

In addition, disaster prevention panels such as the disaster prevention receiving panel for tunnel disaster prevention equipment and the fire receiving panel for fire alarm equipment have a front door that can be opened and closed freely at the door opening formed on the front of the box-shaped housing, the equipment and devices used for monitoring and control are installed inside the housing, a display and indicator lamps are installed on the front door as a display unit, various operation switches are installed as an operation unit, and wiring is used to connect the necessary parts between the equipment and devices installed inside the housing and on the front door.

When these disaster prevention panels are manufactured in the factory or installed on-site, the front door is left open while work such as installing devices and equipment inside the cabinet and on the front door, and wiring between the devices and equipment is carried out.

JP 2018-032114 A JP 2018-049426 A

However, with such conventional disaster prevention panels, work such as installing devices and equipment inside the housing and wiring can only be done through the front opening that is opened by opening the front door, which means that the work required to connect the wiring cables pulled in from outside the disaster prevention panel is done in a confined space at the installation site of a tunnel or facility, etc., as the work is done while the tunnel or facility is under construction and the environment is not yet ready, resulting in a poor working environment. For example, there is insufficient lighting, so the work must be done in a confined space as well as in the dark, which means that it takes a lot of time and effort to install the disaster prevention panel, and work efficiency is low.

In addition, during the manufacturing stage in the factory, various devices and equipment are attached to a metal circuit board located on the rear side inside the case, but a certain amount of working space must be secured between the attached devices and both sides of the inside of the case to take into account subsequent wiring work, etc., and there is also the problem that the width of the metal circuit board on which the devices and equipment are attached is restricted to a narrow space to secure the working space.

The present invention aims to provide a disaster prevention panel housing structure that makes it easy to work inside the housing during manufacturing in a factory or during installation on site.

(Disaster prevention panel housing structure)
The present invention relates to a housing structure of a disaster prevention panel to be installed in a disaster prevention facility,
A box-shaped housing;
a front door provided in a door opening formed on a front surface of the housing so as to be freely opened and closed;
a side door provided in a freely openable and closable manner at a door opening formed on a predetermined side surface other than the front surface of the housing;
The present invention is characterized by comprising:

(Side door installed at one door opening)
A door opening is formed on any one of the side surfaces of the housing other than the front surface.

(Side doors provided at multiple door openings)
Door openings are formed on a plurality of side surfaces other than the front surface of the housing, and a side door is provided at each of the door openings.

(Side door installed to avoid components inside the case)
When a specified component of the disaster prevention panel is arranged on a specified side surface other than the front surface inside the housing, the door opening is formed to avoid the specified side surface on which the specified component is arranged.

(Side door opening direction)
The opening direction of each side door is determined individually for each side door.

(Removable side door)
The side door is provided so as to be freely removable from the housing.

(Specific example of a disaster prevention panel)
The target disaster prevention panels include at least a disaster prevention receiving panel of a tunnel disaster prevention equipment or a fire receiving panel of a fire alarm equipment.

(Effects of the disaster prevention panel housing structure)
The present invention is a housing structure for a disaster prevention panel to be installed in disaster prevention equipment, comprising a box-shaped housing, a front door provided in a door opening formed on the front of the housing so as to be able to be opened and closed, and a side door provided in a door opening formed on a specified side other than the front of the housing, so that work inside the housing, such as installing and wiring equipment and devices inside the housing during manufacture in a factory, etc., and work inside the housing, such as pulling in wiring cables from the outside into the housing and connecting the pulled-in wiring cables when the disaster prevention panel is installed on site, can be easily performed by opening both the front door and the side door, making it possible to increase the work efficiency of work inside the housing.

In addition, even if the on-site environment is poor, such as when the lighting at the site where the disaster prevention panel is installed is insufficient, by opening the side door in addition to the front door, more lighting from outside can be brought into the inside of the housing, improving the working environment inside the housing.

In addition, if multiple side doors are provided, the open area will be greater, which will further increase work efficiency and improve the work environment inside the housing.

(Effect of the side door installed to avoid components inside the case)
In addition, when a specified component of the disaster prevention panel is arranged on a specified side other than the front side inside the housing, the door opening is formed to avoid the specified side on which the specified component is arranged. Therefore, even if a metal substrate is arranged near the rear side opposite the front side inside the housing as a component of the disaster prevention panel, such as a disaster prevention receiving panel for a tunnel disaster prevention equipment, no door opening or side door is provided on the rear side, and the metal substrate can be accessed from a side door formed on another side. Therefore, there is no need to secure space (work space) inside the housing for working on components of the disaster prevention panel arranged inside the housing, such as a metal substrate, and the space for arranging components of the disaster prevention panel, such as a metal substrate, can be expanded by the amount of the unnecessary work space.

(Effect of side door opening direction)
In addition, since the opening direction of each side door is determined individually for each side door, it is possible to open each side door even if the opening direction varies for each side of the housing depending on the environment of the installation location.

(Effect of removable side door)
In addition, since the side door is provided so as to be freely removable from the housing, even if the side door gets in the way of work when it is open or the side door cannot be fully opened due to the surrounding environment, it is possible to maintain high work efficiency for work inside the housing by removing the side door.

FIG. 1 is an explanatory diagram showing a tunnel disaster prevention facility equipped with a disaster prevention receiving panel. FIG. 2 is an explanatory diagram showing the disaster prevention receiving panel. This is an explanatory diagram showing the disaster prevention receiving panel with the side door open. FIG. 2 is an explanatory diagram showing an exploded view of the housing structure of the disaster prevention receiving panel. 1 is an explanatory diagram showing in plan the opening and closing pattern of a side door provided on a disaster prevention receiving panel. FIG. FIG. 13 is an explanatory diagram showing a removable hinge structure that allows the side door to be freely removed. FIG. 2 is an explanatory diagram showing the fire hydrant device with the side door open. FIG. 2 is an explanatory diagram showing the fire hydrant device from the front. This is an explanatory diagram showing the internal structure of a fire hydrant device from the front with the fire hydrant door, maintenance door, and fire extinguisher door in the open state. FIG. 2 is an explanatory diagram showing a cross-section from the left side of a fire hydrant valve operating mechanism equipped with a lever guide plate. FIG. 11 is an explanatory diagram showing the guide movement of the fire hydrant valve opening/closing lever to the closed position by the lever guide plate when the fire hydrant door is closed. An explanatory diagram showing a fire receiving panel equipped with a side door.

Below, an embodiment of the housing structure of a disaster prevention panel according to the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the following embodiment.

[Basic Concept of the Embodiment]
First, a basic concept of the embodiment will be described. The embodiment generally relates to a housing structure of a disaster prevention panel to be installed in a disaster prevention facility.

Here, "disaster prevention equipment" refers to equipment that uses disaster prevention devices and equipment to protect people and objects from abnormalities such as fires, and includes, for example, tunnel disaster prevention equipment, which is a type of emergency equipment installed in tunnels on expressways and motorways, and fire alarm equipment installed in buildings and facilities such as buildings.

A "disaster prevention panel" is a device that connects terminal devices such as fire hydrants, water spray devices, fire detectors, and other devices installed in disaster prevention equipment in a monitored area, controls these terminal devices, and monitors for fires and other abnormalities in the monitored area. In the case of the tunnel disaster prevention equipment mentioned above, this corresponds to the disaster prevention receiving panel installed in the electrical room of the tunnel disaster prevention equipment, and in the case of fire alarm equipment, this corresponds to the fire receiving panel installed in the disaster prevention center, manager's room, etc.

The housing structure of the disaster prevention panel according to the embodiment includes a housing, a front door, and a side door. Here, the "housing" refers to the main body of the panel formed in a box shape, in which various devices and equipment necessary to realize the monitoring and control functions of the disaster prevention panel are placed, and in which wiring cables are laid to connect each of the terminal devices installed in the monitoring area.

In addition, "box shape" does not necessarily have to be limited to a cube or a rectangular parallelepiped, but can be any box shape as long as equipment, devices, etc. can be placed inside the housing. Also, "placement" is a concept that can include terms that can be used interchangeably in the sense of storage, installation, etc.

The "front door" refers to a door that is provided in a door opening formed on the front of the housing and can be opened and closed freely, and an operation display unit, etc., is provided as necessary, similar to conventional disaster prevention panels. The "front" refers to one of the sides of the housing excluding the top and bottom, while the "side" refers to each side of the housing excluding the top and bottom, and the "front" and "rear" refer to a specific side.

A "side door" is a door that is provided on a side other than the front of the housing and that can be opened and closed at a door opening formed on a specific side other than the front. When the door is opened in addition to the front door during manufacturing in a factory or when the disaster prevention panel is installed on site, it allows various types of work to be performed inside the housing from the front door opening and the side door opening.

In addition, the side door is provided in a door opening formed on one of the sides of the housing other than the front side, or in each of the door openings formed on multiple sides of the housing other than the front side.

In addition, if a specific component of the disaster prevention panel is located on a specific side inside the housing other than the front side, the side door opening is formed to avoid the specific side on which the specific component is located.

In addition, "prescribed components of the disaster prevention panel" are not limited to the various devices, equipment, wiring cables, etc., necessary to realize the monitoring and control functions of the disaster prevention panel, but also include components that attach these devices, equipment, and wiring cables to the housing, such as the metal board in the case of a disaster prevention receiving panel for a tunnel disaster prevention facility. In addition, "prescribed components of the disaster prevention panel are arranged on the side" is not limited to components that are arranged directly against the side, but also includes cases where they are indirectly arranged in a position close to the side.

In addition, when multiple side doors are provided, the opening direction of each side door is determined individually for each side door. Here, the opening direction determined individually for each side door naturally includes cases where the opening direction of each side door is different from the opening direction of the other side doors, and also includes cases where there are side doors whose opening direction is the same as the other side doors.

The side door is also removable from the housing.

Specific embodiments are described below. In the embodiments, the "disaster prevention panel of the disaster prevention equipment" is a "disaster prevention receiving panel of the tunnel disaster prevention equipment" and a "fire receiving panel of the fire alarm equipment", and a case where a "right side door" and a "left side door" are provided as "side doors" is described. In addition, an embodiment of a fire hydrant device of a tunnel disaster prevention equipment that has a side door like the disaster prevention panel is also described.

[Specific Contents of the Embodiment]
The structure of the disaster prevention panel will be explained in more detail below.
a. Tunnel disaster prevention equipment b. Disaster prevention receiving panel b1. Outline of the disaster prevention receiving panel b2. Housing structure of the disaster prevention receiving panel b3. Opening and closing pattern of the side door b4. Side door with removal structure c. Fire hydrant device c1. Outline of the fire hydrant device c2. Internal structure of the fire hydrant device c3. Guiding movement of the fire hydrant valve opening and closing lever by the lever guide plate when the fire hydrant door is closed d. Fire receiving panel of the fire alarm system e. Modification of the present invention

[a. Tunnel disaster prevention equipment]
First, a tunnel disaster prevention system equipped with a disaster prevention receiving panel will be described with reference to FIG. 1 showing the tunnel disaster prevention system.

As shown in FIG. 1, an up-line tunnel 1 and a down-line tunnel 2 have been constructed as tunnels for a motorway, and the up-line tunnel 1 and the down-line tunnel 2 are connected by an evacuation access tunnel 3. Inside the up-line tunnel 1 and the down-line tunnel 2, fire hydrant devices 16 are embedded and installed at intervals of, for example, 50 meters along the wall in the longitudinal direction of the tunnel. In addition, fire detectors are installed inside the tunnel, similar to the fire hydrant devices 16, but are not shown in the figure, at intervals of, for example, 50 meters.

A disaster prevention receiving panel 10 is installed in the electrical room of the tunnel disaster prevention equipment to connect terminal devices such as fire hydrants 16 and fire detectors installed in the tunnel and monitor for abnormalities including fires in the tunnel. Transmission between the disaster prevention receiving panel 10 and the terminal devices can be performed in two ways: "R-type (Recorded type) transmission," in which a unique address is set for terminal devices including fire hydrants and fire detectors to send and receive signals, and "P-type (Proprietary type) transmission," in which terminal devices are connected on a line-by-line basis to send and receive signals. This embodiment uses R-type transmission as an example.

In order to connect the disaster prevention receiving panel 10 to each terminal device, a transmission cable 12 including transmission lines 1210 and 1220 is pulled out from the disaster prevention receiving panel 10. The transmission line 1210 is pulled out into the up-line tunnel 1, and the transmission line 1220 is pulled out into the down-line tunnel 2, and a fire hydrant device 16 is connected to each.

In addition, the transmission lines 1210 and 1220 are wired via a relay amplifier board 18 installed inside the tunnel, which relays and amplifies the signals transmitted and received between the fire hydrant device 16 installed far away from the disaster prevention receiving board 10 and the disaster prevention receiving board 10.

The transmission lines 1210, 1220 may be configured as desired, but may be configured, for example, with a power line, a common line, and a transmission line for transmitting downstream signals in voltage mode from the disaster prevention receiving panel 10 to the terminal device, and for transmitting upstream signals in current mode from the fire hydrant device 16 to the disaster prevention receiving panel 10. When transmitting downstream signals in voltage mode, the downstream signals are transmitted as voltage pulses that change the line voltage between 18 volts and 30 volts, for example.

When transmitting an upstream signal in current mode, a signal current is passed at the timing of bit 1 of the transmission data, and the upstream signal is transmitted as a so-called current pulse train. In the case of transmission over two-wire transmission lines 1210, 1220 consisting of a transmission line and a common line, half-duplex communication is performed in which downstream signals in voltage mode and upstream signals in current mode are transmitted by switching between them.

Other emergency equipment for the tunnel include a fire pump equipment 24, an IG satellite station equipment (intelligent satellite station equipment) 26, ventilation equipment 28, an alarm display board equipment 30, a radio rebroadcast equipment 32, a television monitoring equipment 34, and lighting equipment 36, and these equipment are individually connected to the disaster prevention receiving panel 10 by a P-type signal line 14, except that the IG satellite station equipment 26 is connected to the disaster prevention receiving panel 10 by a data transmission line. Note that the transmission between the fire pump equipment 24 and the disaster prevention receiving panel 10 may be R-type transmission, and the fire pump equipment 24 and the disaster prevention receiving panel 10 may be connected by an R-type transmission line.

Here, the IG satellite station equipment 26 is a communication equipment that connects the equipment installed inside the tunnel, including the disaster prevention receiving panel 10, with the remote management equipment installed far outside the tunnel. The ventilation equipment 28 is a equipment that gives energy to the air inside the tunnel by operating a jet fan installed on the ceiling side of the tunnel to blow out a high wind speed, and creates a ventilation flow in the longitudinal direction of the tunnel. The alarm display board equipment 30 is a equipment that displays abnormalities inside the tunnel on an electric display board to notify road users inside the tunnel. The radio rebroadcast equipment 32 is a equipment that allows road users, etc. inside the tunnel to receive information from the road administrator. The television monitoring equipment 34 is a equipment for checking the scale and location of a fire, activating the water spray equipment, understanding the situation inside the tunnel, such as when guiding people to evacuate, and the like. The lighting equipment 36 is a equipment that drives the lighting equipment inside the tunnel.

[b. Disaster prevention receiving panel]
Next, the disaster prevention receiving panel installed in the tunnel disaster prevention equipment will be explained. In this explanation, reference will be made to Fig. 2, which shows the disaster prevention receiving panel taken out, and Fig. 3, which shows the disaster prevention receiving panel with the side door open. Fig. 2(A) shows the front (front face), Fig. 2(B) shows the right side, and Fig. 2(C) shows the plan (top face).

Here, in the explanation of Figures 2 and 3, the X-Y-Z directions are mutually orthogonal directions, and specifically, when looking at the front of the disaster prevention receiving panel with a front door, the X direction is the left-right direction, the Y direction is the up-down direction, and the Z direction is the front-to-back direction. Also, the +X side in the X direction is the right side and the -X side is the left side, the +Y side in the Y direction is the top side and the -Y side is the bottom side, and the +Z side in the Z direction is the front side and the -Z side is the rear side. The same applies to Figures 4 to 6.

(b1. Overview of the Disaster Prevention Receiver Panel)
First, an overview of the disaster prevention receiving panel will be described. As shown in Fig. 2 (A), the disaster prevention receiving panel 10 has a vertically elongated rectangular parallelepiped (vertically long rectangular parallelepiped) box-shaped housing 40 attached and fixed on a stand 45. A front door 42 is provided at the front door opening (front door opening) of the housing 40 so as to open and close freely to the right side with the right side as the axis. A door handle 44 is provided on the front door 42, and when the door handle 44 is operated, the lock of the front door 42 to the housing 40 is released, and the front door 42 can be opened. In addition, a display 52 and an operation display unit 54 are provided from the top on the door surface of the front door 42, which enable alarm display and control operations associated with abnormality monitoring such as fires in the tunnel.

As shown in Figs. 2(B) and 3, the right side door 46 is provided at the door opening on the right side of the housing 40 (right side door opening) so as to be freely opened and closed so as to open sideways backward around the rear end side by means of hinges 56 provided separately at three places, for example, at the top, middle and bottom of the rear end side.

As shown in FIG. 2B, the right side door 46 is provided with a known recessed door handle 48, and as shown in FIG. 3, upper and lower lock bars 58 constituting a known door lock mechanism are provided on the inside of the door in correspondence with the door handle 48. When the center of the door handle 48 is pressed, a lever pops out, and when the popped out lever is turned, the upper and lower lock bars 58 are retracted toward the door, releasing the lock of the right side door 46 to the housing 40 and allowing the right side door 46 to be opened.

A left side door 50 is provided at the door opening on the left side of the housing 40 (left side door opening) so that it can be opened and closed to the rear, similar to the right side door 46, with its rear end as an axis. The left side door 50 is also provided with a well-known recessed door handle, and when the center of the door handle is pressed, a lever pops out, and when the popped out lever is turned, the left side door 50 is unlocked from the housing 40, allowing the left side door 50 to be opened. Also, as shown in FIG. 3, a metal board 68 shown by imaginary lines is attached and fixed near the rear (rear) inside the housing 40 for attaching and fixing various devices, equipment, terminal blocks, etc.

(b2. Disaster prevention receiving panel housing structure)
Next, the housing structure of the disaster prevention receiving panel will be described with reference to Fig. 4 which shows an exploded view of the housing structure of the disaster prevention receiving panel.

The housing structure of the disaster prevention receiving panel 10 is arbitrary, but for example, as shown in FIG. 4, a housing frame 60 is formed in a box shape by connecting frame members (angle bars) so that rectangular openings are formed on each side. A bottom plate 66 is attached and fixed to the bottom of the housing frame 60, and the bottom plate 66 is attached and fixed onto the stand 45. A top plate 62 is attached and fixed to the top of the housing frame 60, and a back plate 64 is attached and fixed to the back (rear) of the housing frame 60. Therefore, the housing 40 of the disaster prevention receiving panel 10 of this embodiment is composed of the housing frame 60, the top plate 62, the back plate 64, and the bottom plate 66.

The structure for attaching and fixing the bottom plate 66, top plate 62, and back plate 64 to the housing frame 60 is arbitrary, but may be, for example, by using bolts and nuts, or by welding. When attaching and fixing using bolts and nuts, in order to ensure waterproofing, rubber seal packing is placed between the frame members of the housing frame 60, which are the contact surfaces, and each plate before attaching and fixing.

The front door 42 is attached and fixed to the front of the housing frame 60 so that it can be opened and closed freely by hinges 56 provided at three locations, upper, middle and lower, on one side end of the front door 42 (the rear end side of the front door 42 in FIG. 4) so that it is located at the right end side of the front of the housing frame 60 when attached and fixed. On the other side end (the front end side of the front door 42 in FIG. 4) opposite to the side end where the hinge 56 of the front door 42 is provided, lock bars 58 operated by the door handle 44 are arranged in upper and lower parts. When the door handle 44 is operated to the closed position shown in FIG. 2 and FIG. 3 with the front door 42 attached and fixed to the housing frame 60 and closed, the lock bar 58 engages with a receiving hole provided on the housing frame 60 side to lock the front door 42 in the closed position. Also, when the door handle 42 is operated to the open position, the tip of the lock bar 42 is pulled out of the receiving hole and the front door 42 is unlocked.

The right side door 46 is attached and fixed to the right side of the housing frame 60 so that it can be opened and closed freely by hinges 56 arranged in three places, top, middle and bottom, on one side end of the right side door 46 (the rear end side of the right side door 46 in FIG. 4) so that it is located at the rear end side of the right side of the housing frame 60 when attached and fixed. Also, like the front door 42, the right side door 46 has lock bars 58 arranged in upper and lower parts on the other side end (the front end side of the right side door 46 in FIG. 4) opposite the side end where the hinge 56 is provided, which are operated by a door handle 48, and the lock bars 58 engage with receiving holes provided on the housing frame 60 side to lock the right side door 46 in the closed position.

The left side door 50 is attached and fixed to the left side of the housing frame 60 so that it can be opened and closed freely by hinges arranged in three places, top, middle and bottom, on one side end of the left side door 50 (the rear end side of the right side door 50 in FIG. 4) so that it is located at the rear end side of the left side of the housing frame 60 when attached and fixed. As with the front door 42 and right side door 46, the left side door 50 also has upper and lower lock bars operated by a door handle arranged on the back surface of the other side end (the front end side of the left side door 50 in FIG. 4) opposite the side end where the hinge is provided, and the lock bars engage with receiving holes provided on the housing frame 60 side to lock the left side door 50 in the closed position.

In addition, to ensure waterproofing when the front door 42, right side door 46, and left side door 50 are closed, a rubber seal packing is placed on the inner periphery of the rear side of each door and/or on the area of the frame member that contacts the door of the housing frame 60, and each door is attached and fixed to seal the gap between each door and the housing frame 60 in the closed state. In addition, a metal board 68 shown in imaginary lines is attached and fixed to the front side of the back plate 64 attached and fixed to the housing frame 60 for attaching and fixing various devices, equipment, terminal blocks, etc. The housing structure of the disaster prevention receiving panel 10 may be manufactured by sheet metal processing, without using a housing frame 60 using angle bars as shown in FIG. 4.

In this way, in the case of the disaster prevention receiving panel 10 equipped with the right side door 46 and the left side door 50 in addition to the front door 42, during manufacturing and assembly in a factory, the right side door 46 and the left side door 50 in addition to the front door 42 are opened, and the doors are kept open using appropriate stopper members, for example, to prevent the doors from closing. Therefore, the necessary work such as attaching and fixing various devices, equipment, terminal blocks, etc. to the metal board 68 attached and fixed inside the housing 40 and wiring can be performed by inserting one's body and hands through the open front door opening as well as the right side door opening and the left door opening, making it possible to efficiently carry out manufacturing and assembly work even if the inside of the housing 40 is narrow.

In addition, since both side ends of the metal board 68, which is attached and fixed in a position close to the rear (rear) inside the housing 40, can be accessed from the right side door opening or the left side door opening, work such as attaching and fixing devices to the metal board 68 and wiring can be performed from the right side door opening or the left side door opening. This eliminates the need to secure work space between the metal board 68 and the left and right sides inside the housing 40, making it possible to expand the arrangement space for the metal board 68 and also the size of the metal board 68.

Also, when the disaster prevention receiving panel 10 manufactured in a factory is brought into an electrical room or the like and installed on-site, the front door 42 as well as the right side door 46 and left side door 50 are opened, just as when it was manufactured in a factory, and work is performed by keeping each door open using, for example, a stopper member to prevent each door from closing. Therefore, when wiring work is performed, such as pulling the wiring cable from the outside of the disaster prevention receiving panel 10 in the electrical room or the like into the inside of the housing 40 and connecting it to the terminal block or the like attached and fixed to the metal board 68, the body and hands can be inserted through the open front door opening as well as the right side door opening and the left door opening, making it possible to efficiently perform manufacturing and assembly work even if the inside of the housing 40 is narrow.

In addition, since these tasks are performed during construction when the tunnel site environment is not yet ready, the site environment may be insufficiently lit. However, by opening the right side door opening and the left side door opening in addition to the front door opening, more lighting from outside can be brought into the housing 40, improving the work environment inside the housing 40.

Furthermore, during periodic inspections of the tunnel disaster prevention equipment while it is in operation, the right side door 46 and the left side door 50 can be opened in addition to the front door 42, making it easy to carry out work inside the housing 40 during inspections.

(b3. Side door opening and closing pattern)
Next, the opening and closing patterns of the side doors (right side door and left side door) provided on both sides of the housing of the disaster prevention receiving panel will be described. In this description, reference will be made to Figure 5, which shows the opening and closing patterns of the side doors provided on the disaster prevention receiving panel in plan (top) view.

The opening and closing patterns of the right side door 46 and the left side door 50 provided on the disaster prevention receiving panel 10 are basically opening sideways backwards around the rear ends of the right side door 46 and the left side door 50 as an axis as shown in FIG. 2(C), but other opening and closing patterns as shown in FIGS. 5(A) to (C) are also possible.

The opening/closing pattern in FIG. 5(A) is an opening/closing pattern that opens sideways forward around the front ends of the right side door 46 and the left side door 50. This opening/closing pattern is provided to avoid the influence of obstacles such as walls, pillars, or other structures that impede work on the rear side (rear side) of the housing 40 at the installation site of the disaster prevention receiving panel 10, for example.

The opening and closing pattern in FIG. 5(B) is an opening and closing pattern in which the right side door 46 opens sideways forward around the front end as an axis, and the left side door 50 opens sideways backward around the rear end as an axis. The opening and closing pattern in FIG. 5(C) is the opposite of the opening and closing pattern in FIG. 5(B), and the right side door 46 opens sideways backward around the rear end as an axis, and the left side door 50 opens sideways forward around the front end as an axis. These opening and closing patterns are provided individually for the right side door 46 and the left side door 50 as opening and closing patterns to avoid the influence of obstacles that hinder work.

(b4. Side door with removable structure)
Next, the side door with a removable structure will be described. In this description, reference will be made to Fig. 6, which shows a removable hinge structure that allows the side door to be detached. Note that Fig. 6 explains the portion including the housing and the right side door, but the same applies to the left side door.

As shown in FIG. 6, a right side door 46 is provided at the right side door opening of the housing 40 so as to be able to be opened and closed with its rear end as an axis, and a removable hinge structure 120 is further provided as a hinge structure that pivots on the rear end of the right side door 46.

The detachable hinge structure 120 is constructed by attaching and fixing a door-side bearing 124 to the rear end of the back surface of the right side door 46, attaching and fixing a housing-side bearing 126 to the housing 40 side so that it is coaxially below the door-side bearing 124, and inserting an L-shaped shaft pin 128 into the door-side bearing 124 and the housing-side bearing 126 with the door-side bearing 124 axially aligned with the housing-side bearing 126, thereby allowing the right side door 46 to be freely opened and closed at the right side door opening of the housing 40.

Therefore, during the manufacturing stage at a factory or during installation on site, the right side door 46 and the left side door 50 can be removed from the housing 40 by removing the pivot pin 128 from the door-side bearing 124 and the housing-side bearing 126. By removing the right side door 46 and/or the left side door 50, it becomes even easier to work on the inside of the housing 40 through the side door opening.

[c. Fire hydrant equipment]
Next, the fire hydrant device installed in the tunnel disaster prevention equipment will be described. In this description, the fire hydrant device is taken out and the side door is open, and FIG. 7 shows the fire hydrant device from the front (front). Please refer to FIG.

Here, in the explanation of Figures 7 and 8, the X-Y-Z directions are mutually orthogonal directions, and specifically, when looking at the front face of the fire hydrant device on which the fire hydrant door is installed, the X direction is the left-right direction, the Y direction is the up-down direction, and the Z direction is the front-to-back direction. 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 top side, the -Y side is the bottom side, and the +Z side in the Z direction is the front side, and the -Z side is the rear side. The same applies to Figures 9 to 11.

(c1. Overview of fire hydrant equipment)
First, an overview of the fire hydrant device will be described. As shown in Figures 7 and 8, the fire hydrant device 16 is divided into a housing 70a, the interior of which serves as a fire hydrant storage section, and a housing 70b, the interior of which serves as a fire extinguisher storage section, and the housings 70a and 70b are fixed and installed on a stand 73. Also, decorative frames 71a and 71b are attached to the front of the housings 70a and 70b.

The door opening of the decorative frame 71a of the housing 70a is divided into upper and lower halves, with a forward-tilting fire hydrant door 72 that opens downwards on a hinge provided at the lower part of the door opening, and a maintenance door 74 that opens upwards on a hinge provided at the upper part of the door opening, with a fire hydrant storage section inside which stores a fire hose and valves including a fire hydrant valve as fire hydrant equipment. A door handle 7210 is provided on the fire hydrant door 72, and when a road user puts their hand into the door handle 7210 and pulls it towards themselves, the lock is released and the fire hydrant door 7210 can be opened.

A fire extinguisher door 76 that opens sideways to the left on a hinge is provided on the left side of the door opening of the decorative frame 71b of the housing 70b, and for example, two fire extinguishers can be stored in the fire extinguisher storage section inside. A door handle 7610 is provided on the fire extinguisher door 76, and when a road user inserts their hand into the door handle 7610 and pulls it towards themselves, the lock is released and the fire extinguisher door 76 can be opened. A viewing window 7620 is provided on the underside of the fire extinguisher door 76, making it possible to check whether a fire extinguisher is present from outside.

In addition, an electrical door 78 that opens sideways to the right on a hinge is provided on the right side of the door opening of the decorative frame 71b. The electrical door 78 is provided with electrical equipment such as a red indicator light 80, a transmitter 82, and a response lamp 84, and a telephone jack is provided on the inner surface (rear side) of the electrical door 78.

The red indicator light 80 is always lit, allowing the location of the fire hydrant device 16 to be known from a distance. In the event of a fire, pressing the transmitter 82 to turn on the push button switch sends a fire notification signal to the disaster prevention receiving panel 10, which outputs a fire alarm based on the fire notification signal. In response, the disaster prevention receiving panel 10 sends a response signal to the fire hydrant device 16 using R-type transmission control, causing the red indicator light 80 to flash and the response lamp 84 to light up.

A door opening is formed on the left side of the housing 70b, and a side door 81 is provided so as to be freely opened and closed so as to open sideways to the rear on a hinge 83. A built-in door handle 8110 is provided on the side door 81, and the tip of the lock bar 87 engages with a receiving hole on the housing 70b side to lock the side door 81 in the closed position. When the door handle 8110 is opened, the tip of the lock bar 870 is pulled out of the receiving hole on the housing 70b side, and the lock on the side door 81 is released.

The terminal boxes 86, 88 are attached and fixed inside the housing 70b of the fire hydrant device 16. When wiring work is to be performed on the terminal boxes 86, 88 while the fire hydrant device 16 is installed inside a tunnel, opening the side door 81 in addition to the fire extinguisher door 76 makes it easier to work inside the housing 70b.

The side door 81 is effective when the fire hydrant device 16 is installed in contact with or close to the tunnel wall and exposed above the road surface of the guard passage. In cases where the fire hydrant device 16 is installed embedded in a hollowed-out portion of the tunnel wall and no working space can be secured on the left side of the fire hydrant device 16, the side door 81 is not provided.

(b2. Internal structure of fire hydrant device)
Next, the internal structure of the fire hydrant device 16 will be described with reference to Fig. 9, which shows the internal structure of the fire hydrant device from the front (front side) with the fire hydrant door, the maintenance door, and the fire extinguisher door in an open state.

As shown in FIG. 9, the inside of the housing 70a, which becomes the fire hydrant storage section 75, is divided into a valve storage section 750 and a hose storage section 752. In the valve storage section 750, a water supply hydrant 91 is connected to a water supply pipe 90 drawn in from the outside, and the water supply pipe 90 branches downward and is connected to a fire hose 102 via a fire hydrant valve 92 and an automatic pressure adjustment valve 94.

The hose storage section 750 is provided with a hose storage frame 108, in which the fire hose 102 pulled in from below is stored by winding it inward clockwise or counterclockwise. A nozzle 104 is attached to the tip of the fire hose 102 pulled out through a hose guide 110 installed on the back side of the fire hydrant door 72, and the nozzle 104 is detachably held in a nozzle holder 106 installed on the back side of the fire hydrant door 72.

The fire hydrant valve 92 is opened and closed by a fire hydrant valve opening/closing lever 96 provided on an operation box 95 installed on the back side of the fire hydrant door 72, and the fire hydrant valve 92 is opened and closed in conjunction with the opening and closing operation of the fire hydrant valve opening/closing lever 96 by a known wire link mechanism provided between the operation box 95 and a linkage box 98 provided on the fire hydrant valve 92 corresponding to the operation box 95.

In addition, a lever guide plate 100 is provided on the right side of the interlocking box 98 to guide the fire hydrant valve opening/closing lever 96, which is in the open position, to the closed position when the fire hydrant door 72 is closed.

In addition, a pump start interlocking switch is provided inside the interlocking box 98, which is turned on and off in response to the opening and closing of the fire hydrant valve 72 and transmits a pump start signal when turned on, and a pump start switch 93 is provided at the top right of the water supply hydrant 91, which is used by the fire brigade and transmits a pump start signal when turned on.

The inside of the housing 70b (on the fire extinguisher door side) is the fire extinguisher storage section 77, in which two fire extinguishers 79 are stored. Terminal boxes 86, 88 are installed on the rear of the fire extinguisher storage section 77. A red indicator light 80 provided on the electrical door 78 is connected to the terminal box 86 via a wiring cable, and a transmitter 82, a response lamp 84, a telephone jack 85, a pump start switch 93 provided on the valve storage section 752, and a pump start interlocking switch built into the interlocking box 98 are connected to the terminal box 88 via wiring cables.

A cable rack 109 is installed on the upper part of the housing 70a, from near the center of the valve storage section 750 to the fire hydrant storage section 752. A high-voltage cable is inserted through the cable rack 109 to connect a high-voltage cable drawn into the valve storage section 750 from the outside to the terminal box 86, a low-voltage cable is inserted through the cable rack 109 to connect a low-voltage cable drawn into the valve storage section 750 from the outside to the terminal box 88, and a wiring cable is inserted through the cable rack 109 to connect a wiring cable from the pump start switch 93 and the pump start interlocking switch built into the interlocking box 98 to the terminal box 88.

(c3. Guide movement of the fire hydrant valve opening/closing lever by the lever guide plate accompanying the closing of the fire hydrant door)
Next, the guide movement of the fire hydrant valve opening/closing lever operated to the open position by the lever guide plate with the hydrant door closing will be described. In this description, reference will be made to Figure 10, which shows a cross section from the left side of the operating mechanism of the fire hydrant valve equipped with a lever guide plate, and Figure 11, which shows the guide movement of the fire hydrant valve opening/closing lever to the closed position by the lever guide plate with the hydrant door closing.

As shown in FIG. 10, when using the fire hydrant device 16, a road user opens the fire hydrant door 72 to an open position tilted downward and forward, removes the nozzle from the nozzle holder installed on the back side of the fire hydrant door 72, and pulls out the fire hose. Next, the user grasps the handle 9610 of the fire hydrant valve opening/closing lever 96 of the operation box 95 installed on the back side of the fire hydrant door 72, and operates the fire hydrant valve opening/closing lever 96 from the closed position shown by imaginary lines to the open position shown in front of the figure. This causes the fire hydrant valve to open via the interlocking box 98 by the wire link mechanism, supplying fire water to the fire hose and starting to spray water from the nozzle.

When firefighting activities using the fire hydrant device 16 are completed, the fire hydrant valve opening/closing lever 96, which is in the open position, is returned to the closed position shown in phantom lines to close the fire hydrant valve 72 and stop water discharge from the nozzle.

However, when checking or inspecting the opening and closing operation of the fire hydrant valve opening and closing lever 96 during construction or other stages in which fire water is not supplied even when the fire hydrant valve opening and closing lever 96 is set to the open position, there are cases in which the work is completed with the fire hydrant valve opening and closing lever 96 set to the open position and the fire hydrant door 72 is closed. If a test run of the fire pump equipment to supply fire water is then performed with the fire hydrant valve opening and closing lever 96 left in the open position, water will be discharged from within the fire hydrant device 16, causing water damage.

To solve this problem, when the fire hydrant door 72 is moved to the closed position, a lever guide plate 100 for guiding the fire hydrant valve opening/closing lever 96, which has been operated to the open position, to the closed position is disposed next to the interlocking box 98 (at a position corresponding to the fire hydrant valve opening/closing lever 96), with a guide surface 101 that curves along a predetermined guide path facing the outside of the housing 70a.

As a result, when the fire hydrant door 72 is moved to the closed position while the fire hydrant valve opening/closing lever 96 is operated to the open position, as shown in FIG. 11, when the fire hydrant door 72 approaches the closed position, the handle 9610 of the fire hydrant valve opening/closing lever 96 in the open position abuts against the upper part of the guide surface 101 of the lever guide plate 100, and a guiding movement of the fire hydrant valve opening/closing lever 96 toward the closed position is started. Then, as the fire hydrant door 72 further moves toward the closed position, the fire hydrant valve opening/closing lever 96 is guided toward the closed position, and when the hydrant door 72 is completely closed, the fire hydrant valve opening/closing lever 96 has completed moving to the closed position.

Therefore, even if the fire hydrant door 72 is accidentally closed while the fire hydrant valve opening/closing lever 96 is in the open position, the fire hydrant valve opening/closing lever 72 is automatically guided to the closed position as the fire hydrant door 72 is closed, and even if fire water is subsequently supplied from the fire pump equipment, erroneous discharge of water inside the fire hydrant device 16 is reliably prevented.

[d. Fire receiving panel of fire alarm system]
Next, a fire receiving panel of a fire alarm system installed in a facility such as a building will be described. In this description, reference will be made to Fig. 12, which shows a fire receiving panel with a side door. Fig. 12(A) shows the front (front face), Fig. 12(B) shows the right side, and Fig. 12(C) shows the plan (top face).

In the explanation of FIG. 12, the X-Y-Z directions are mutually orthogonal directions, and specifically, when looking at the front of the fire receiving panel with the front door, the X direction is the left-right direction, the Y direction is the up-down direction, and the Z direction is the front-to-back direction. Also, the +X side in the X direction is the right side and the -X side is the left side, the +Y side in the Y direction is the top side and the -Y side is the bottom side, and the +Z side in the Z direction is the front side and the -Z side is the back side.

As shown in FIG. 12(A), the fire receiving panel 130 has a vertically elongated rectangular box-shaped housing 132 attached and fixed on a stand 135. A front door 134 is provided at the front door opening (front door opening) of the housing 132 so that it can be opened and closed freely, opening sideways to the right on the right side. A door handle 136 is provided on the front door 134, and operating the door handle 136 releases the lock of the front door 134 from the housing 132, allowing the front door 134 to be opened. In addition, an alarm display unit 142, a display 144, an operation display unit 145, and a printer 146 are provided on the door surface of the front door 134 from the top, and these enable the output of a fire alarm when a fire is detected, the display of the location of the fire, and various countermeasures to be taken when a fire occurs.

As shown in Figs. 12B and 12C, a right side door 138 is provided at the door opening on the right side of the housing 132 so as to be freely opened and closed, for example by opening sideways to the rear on the rear end side. A well-known built-in door handle 140 is provided on the right side door 138, which is similar to the door handle 48 of the disaster prevention receiving panel of the tunnel disaster prevention equipment described above. A left side door 148 is provided at the door opening on the left side of the housing 132 so as to be freely opened and closed, for example by opening sideways to the rear on the rear end side. A well-known built-in door handle is provided on the left side door 148, similar to the right side door 138.

The housing structure of the housing 132 is basically the same as that of the disaster prevention receiving panel described above, so a description of it will be omitted. Also, the side door opening/closing pattern and removal structure shown in the disaster prevention receiving panel can also be applied to the fire receiving panel.

For this reason, just as in the case of the disaster prevention receiving panel 10 of the tunnel disaster prevention equipment shown in Figures 2 to 4, in the fire receiving panel 130 of the fire alarm equipment, by opening the right side door 138 and the left side door 148 in addition to the front door 134 during manufacturing at the factory or during work at the installation site, it becomes possible to insert one's body or hands through the right side door opening and the left side door opening in addition to the open front door opening to perform necessary work, making it possible to efficiently perform work inside the housing 132 even if the inside of the housing is narrow, and to bring in more lighting from outside into the housing 40, improving the work environment.

[e. Modifications of the present invention]
Modifications of the housing structure of the disaster prevention panel according to the present invention will be described. The housing structure of the disaster prevention panel according to the present invention includes the following modifications in addition to the above-described embodiment.

(Disaster prevention panel)
In the above embodiment, a disaster prevention receiving panel for a tunnel disaster prevention equipment and a fire receiving panel for a fire alarm equipment were used as examples of disaster prevention panels, but the present invention is not limited to these and can be applied to various display panels and control panels used in disaster prevention equipment.

(Box-shaped housing)
In the above embodiment, the box shape of the housing is a rectangular parallelepiped, but the box shape can be any shape. For example, the box can be a prism whose bottom and top surfaces are any polygonal shape.

(Side door)
The above embodiment is an example of a case where side doors are provided on the left and right sides of the housing of the disaster prevention receiving panel and fire receiving panel exemplified as a disaster prevention panel, but is not limited to this, and a side door may be provided on either the left or right side. In addition, a housing structure in which a side door is provided on one of the left and right sides of a disaster prevention panel is considered to be applied when multiple disaster prevention panels are installed in series. For example, when two disaster prevention panels are installed in series, a right side door may be provided on the disaster prevention panel installed on the right side, and a left side door may be provided on the disaster prevention panel installed on the left side.

In addition, in the embodiment, side doors are provided over almost the entire left and right sides of the housing, but the extent of the area of each side that is designated as the side door area is arbitrary, and when multiple side doors are provided, it is not necessary for all of the side doors to be the same size.

(Equipment mounting on side door)
In the above embodiment, the electrical equipment, devices, terminal blocks, etc. are attached and fixed to the metal board and front door located near the rear inside the housing of the disaster prevention receiving panel and fire receiving panel exemplified as the disaster prevention panel, but the metal board may be placed on the inner side of the side door and the devices, terminal blocks, etc. may be attached and fixed to the metal board and wired. By providing the devices, terminal blocks, etc. on the inside of the side door in this way, the arrangement space of the devices within the housing can be expanded, the degree of freedom in the arrangement of the devices is increased, the heat dissipation performance of the electrical equipment and electrical parts is improved, and furthermore, it is possible to secure a sufficient creepage distance to ensure electrical insulation.

In addition, by placing a metal substrate on the inner surface of the side door, it is possible to provide a side door on the rear side of the housing as well. When providing a side door on the rear side of the housing, the metal substrate may be provided on the rear side door, or a metal substrate may be provided on a side door provided on another side.

(others)
Furthermore, the present invention includes appropriate modifications that do not impair the objects and advantages of the present invention, and is not limited to the numerical values shown in the above embodiment.

1: Up line tunnel 2: Down line tunnel 3: Evacuation tunnel 10: Disaster prevention receiving panel 12: Transmission cable 1210, 1220: Transmission line 14: P-type signal line 16: Fire hydrant device 18: Relay amplifier board 24: Fire pump equipment 26: IG child station equipment 28: Ventilation equipment 30: Alarm display board equipment 32: Radio rebroadcast equipment 34: TV monitoring equipment 36: Lighting equipment 40, 132: Housing 42, 134: Front door 44, 48, 13 6, 140, 7210, 7610, 8110: Door handle 45, 73, 135: Stand 46, 138: Right side door 50, 148: Left side door 52, 144: Display 54, 145: Operation display unit 56, 83: Hinges 58, 87: Lock bar 60: Housing frame 62: Top plate 64: Back plate 66: Bottom plate 68: Metal substrate 70a, 70b: Housing 71a, 71b: Decorative frame 72: Fire hydrant door 7210, 7610 : Door handle 74: Maintenance door 75: Fire hydrant storage section 750: Valve storage section 752: Fire hydrant storage section 76: Fire extinguisher door 7620: Viewport 77: Fire extinguisher storage section 78: Electrical door 79: Fire extinguisher 80: Red indicator light 81: Side door 82: Transmitter 84: Response lamp 85: Telephone jack 86, 88: Terminal box 90: Water supply pipe 91: Water supply hydrant 92: Fire hydrant valve 93: Pump start switch 94: Automatic pressure regulating valve 95: Operation box 96: Fire hydrant valve opening/closing lever 96 10: Handle 98: Interlocking box 100: Lever guide plate 101: Guide surface 102: Fire hose 104: Nozzle 106: Nozzle holder 108: Hose storage frame 109: Cable rack 110: Hose guide 120: Detachable hinge structure 124: Door side bearing 126: Housing side bearing 128: Axle pin 130: Fire receiving panel 142: Alarm display unit 146: Printer

Claims (7)

A housing structure of a disaster prevention panel to be installed in a disaster prevention facility,
A box-shaped housing;
a front door provided in a door opening formed on a front surface of the housing so as to be freely opened and closed;
a side door provided at a door opening formed on a predetermined side surface other than the front surface of the housing so as to be freely opened and closed;
A disaster prevention panel housing structure comprising:
In the housing structure of the disaster prevention panel according to claim 1,
A disaster prevention panel housing structure, characterized in that a door opening is formed on any one of the sides of the housing other than the front side.
In the housing structure of the disaster prevention panel according to claim 1,
A disaster prevention panel housing structure, characterized in that door openings are formed on a plurality of side surfaces other than the front surface of the housing, and a side door is provided at each of the door openings.
In the housing structure of the disaster prevention panel according to claim 2 or 3,
A housing structure for a disaster prevention panel, characterized in that when a specified component of the disaster prevention panel is arranged on a specified side other than the front side inside the housing, the door opening is formed to avoid the specified side on which the specified component is arranged.
In the housing structure of the disaster prevention panel according to claim 3,
A disaster prevention panel housing structure, characterized in that the opening direction of each of the side doors is determined individually for each of the side doors.
In the housing structure of the disaster prevention panel according to claim 1,
A disaster prevention panel housing structure, characterized in that the side door is provided so as to be freely removable from the housing.
In the housing structure of the disaster prevention panel according to claim 1,
A housing structure for a disaster prevention panel, characterized in that the target disaster prevention panel includes at least a disaster prevention receiving panel for a tunnel disaster prevention equipment or a fire receiving panel for a fire alarm equipment.

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