JP2022060304A - Fire countermeasure structure for soundproof chamber - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fire countermeasure structure for a soundproof chamber that facilitates installation and is capable of exerting excellent disaster protection function at the time of emergency.

SOLUTION: A fire countermeasure structure for a soundproof chamber 11 to be installed in an intra-building space having a fire fighting appliance has a housing 12 including a ceiling 12b on which a fire extinction appliance is attached, the fire extinction appliance added separately from an existing fire fighting appliance, functioning independently of the fire fighting appliance, and requiring no power supply. The fire extinction appliance is an automatic fire extinction device 24 integrally comprising: an attachment part 31 for determining an attachment position; a heat sensing part for sensing heat caused by occurrence of fire; a fire extinction agent container 25 having a size in a longitudinal direction formed smaller than that in a lateral direction, where a direction of ceiling height is defined to be the longitudinal direction; and a discharge nozzle that is fixed to a lower end of the fire extinction agent container and is capable of discharging a fire extinction agent in the fire extinction agent container to an office space by dissolution of low melting metal used for the heat sensing part.

SELECTED DRAWING: Figure 3

COPYRIGHT: (C)2022,JPO&INPIT

Description

The present invention relates to a fire countermeasure structure for a soundproof chamber, and more particularly to a fire countermeasure structure for a portable soundproof chamber that can be installed and used indoors or outdoors.

Anechoic chambers with sound insulation to keep the room quiet have been installed in various places such as homes and businesses and used for various purposes. In recent years, in response to the growing interest in telework in each company, anechoic chambers for teleworkers are being considered. Therefore, from the viewpoint of preventing access to confidential information by a third party, in a soundproof room for teleworkers installed in a place where an unspecified number of people pass, a soundproof room equipped with a crime prevention function that can limit the number of people who can enter the room. Has been studied (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2019-28995

When installing a soundproof room in a place where an unspecified number of people pass, disaster prevention measures are indispensable in addition to crime prevention. Especially in the case of a fire, it was brought into the room not only when it was caused by a natural disaster such as an earthquake. It is assumed that it may be caused by an article, and the issue is how to ensure the safety of the user who uses the soundproof room. Therefore, it is conceivable to install an automatic fire extinguishing device as a disaster prevention facility in the soundproof room, but it takes time and effort for peripheral construction such as installation of a fire extinguishing agent container and a conduit. Even so, installing these devices in a soundproof room not only reduces the space utilization efficiency, but also leads to an increase in the size of the soundproof room, and is a small soundproof that can be easily carried in and out of the installation location. The advantage of the room is lost.

Therefore, an object of the present invention is to provide a fire countermeasure structure of a soundproof room capable of exhibiting an excellent disaster prevention function in an emergency while facilitating installation.

In order to achieve the above object, the fire-fighting structure of the soundproof room of the present invention is provided in the space inside the building equipped with commercial power supply equipment and fire-fighting equipment, among the places where various people pass, the floor, the side wall, and the ceiling. A closed office space is formed by a housing having a door that can open and close the doorway provided on the side wall, and the firefighting equipment is separately added to the existing firefighting equipment on the ceiling. It is possible to install a fire extinguishing system that functions independently of the fire extinguishing system and does not require a power source, and to make the emission nozzle face the office space at a position where the table provided in the office space is included in the emission range of the fire extinguishing agent. It is a fire-fighting structure of a portable soundproof room, and the fire extinguishing equipment includes a short pipe-shaped discharge nozzle whose length dimension is close to the radial dimension, and a fire extinguishing agent container to which the discharge nozzle is fixed. , A mounting part that determines the mounting position and a heat sensing part that senses heat due to the occurrence of a fire are integrally provided, and the fire extinguishing agent in the fire extinguishing agent container is melted by melting the low melting point metal used in the heat sensing part. The housing is an automatic fire extinguishing device for discharging fire from the discharge nozzle, and the housing has an outer wall formed of a metal plate material and an inner wall formed of a non-combustible material, and is provided on the inner surface surface of the outer wall. By arranging a power supply circuit in the space along the line and electrically connecting the power plug on the power transmission side and the connection port on the power reception side by the power supply circuit, the computer or portable information brought into the work space. It is possible to supply power to the terminal from a power outlet that takes commercial power via the connection port, and the table has a table surface of a size that can be used by mounting the computer or a portable information terminal. The connection port is arranged at a position where it can be visually recognized toward the table, and the fire extinguishing agent container is formed to be smaller in height than the width and around the vertical axis passing through the heat sensing portion. It has an outer peripheral surface obtained by rotating an arc, and is characterized in that the ceiling is provided with a fire extinguishing device cover that covers the fire extinguishing agent container so that it is not directly visible.

Further, the power supply circuit extends to any one or more electronic devices of conference equipment, lighting, surveillance cameras, speakers, and air conditioning equipment as electronic devices provided in the housing, and the electronic devices. It is characterized by having a switch for switching from an energized state to a cut-off state or vice versa.

Further, the housing is characterized by being provided with a communication circuit capable of transmitting and receiving data to and from an external device via a network. In addition, the data is characterized by including audio data and video data of a conference held with a communication destination.

Further, the housing is characterized by being provided with a lock that can lock and unlock the door and a control unit that unlocks or locks the door based on a remote control signal from the outside. Further, the office space is provided with a seat used as a pair with the table, and the discharge nozzle faces the office space at a position where both the table and the seat are included in the fire extinguishing agent discharge range. It is characterized by becoming.

Further, in the office space, the depth from the doorway and the width are almost equal, and the table is provided on one side and the seat is provided on the other side so as not to obstruct the entrance and exit, and the door faces the outdoor side. A door that opens outwards, and is configured to be openable and closable around the joint with the housing. It is characterized in that it has a table edge that is separated from the door in the depth direction by cutting the front side edge portion of the table surface in a straight line or a curved line in a range having overlap.

According to the present invention, it is added separately to the existing fire-fighting equipment on the ceiling of the soundproof room installed in the space inside the building equipped with the fire-fighting equipment, and functions independently of the existing fire-fighting equipment. As a fire extinguishing system that does not require a power source, an integrated automatic fire extinguishing device including a fire extinguishing agent container is installed, so a soundproof room that can demonstrate excellent disaster prevention functions in an emergency has been achieved while facilitating installation. , It will be possible to promote its safe use in various environments where soundproof rooms are installed.

It is a front view of the soundproof room which shows an example of one embodiment of this invention. It is also a side view. It is also a plan view. FIG. 1 is a sectional view taken along line IV-IV of FIG. It is a VV cross-sectional view of FIG. FIG. 2 is a sectional view taken along line VI-VI of FIG. FIG. 1 is a cross-sectional view taken along the line VII-VII of FIG. Similarly, it is an enlarged cross-sectional view of a main part.

1 to 8 show an example of a soundproof chamber of the present invention, and the soundproof chamber 11 is formed by a housing 12 and a door 13 as shown in FIGS. 1 to 7, and a person can enter the soundproof chamber 11. It has a space that can be installed, for example, in a place where various people pass, such as in a station yard, an airport, a commercial facility, an exhibition hall, an outdoor plaza, a store interior, a hotel, a condominium, or an office. Will be done. Further, the soundproof room 11 can transmit and receive data to and from an external device via a network such as the Internet. A user who uses the soundproof room 11 can hold a video conference with a user who uses an external device having a video conference function by using, for example, a video conference terminal installed in the soundproof room 11.

The housing 12 is made of a member such as metal, wood, or resin, and is formed into a rectangular parallelepiped having a large height as a whole, and an opening for a user to enter and exit is provided on one side surface thereof (FIG. 1). ing. Further, casters 14 and adjusters 15 are provided at the four corners of the bottom surface of the housing 12, respectively. After moving the soundproof room 11 to the installation location using the casters 14, the installer of the soundproof room 11 adjusts the length of the adjuster 15 so that the length of the adjuster 15 is equal to the distance between the bottom surface and the floor surface of the soundproof room 11. , The soundproof chamber 11 can be fixed in place.

A sound absorbing material 12a is provided inside the housing 12, so that the voice spoken by the user inside the soundproof chamber 11 and the voice uttered by the user using the external device are less likely to leak to the outside of the soundproof chamber 11. Therefore, even when the soundproof room 11 is installed in a public place where an unspecified number of people pass, the user can speak with confidence the highly confidential content. In addition, the specifications of the floor material have a double-floor structure in which a space is formed between the upper and lower floor boards by interposing a plurality of beams, and the strength required for people entering and exiting and supporting the sofa 16 and the like. Is secured.

The door 13 is coupled to the housing 12 so as to be able to close the opening of the housing 12, and can be opened and closed around the binding site with the housing 12 by operating the handle 13a. There is. The door 13 is provided with a door glass 13b so that the inside of the soundproof chamber 11 can be visually recognized from the outside.

A lock (not shown) is provided between the housing 12 and the door 13, and the door 13 can be opened under the control of the control unit (CPU) incorporated in the housing 12. The door 13 is switched between the locked state and the locked state where the door 13 cannot be opened. The lock is controlled so as to unlock or lock the soundproof chamber 11 by switching between the unlocked state and the locked state by the user's operation from the inside of the housing 12, or by switching by the remote control. To.

Further, on the front side of the housing 12, an operation receiving unit 17 for receiving user operations is provided. The operation reception unit 17 is, for example, a display with a touch panel, and receives a scheduled use time input by the user. The user can select, for example, any one of 30 minutes, 60 minutes, and 90 minutes. The charge to be settled is determined according to the scheduled use time, and the power supply to the electronic device provided inside the soundproof room 11 starts from the completion of the settlement until the scheduled use time elapses. Will be done.

The electronic devices include a permanent video conference facility 18, a lighting 19 installed on the ceiling 12b of the housing 12, a surveillance camera 20, a speaker 21, an air conditioning facility, and a computer or mobile terminal brought in by a user. .. The air-conditioning equipment ventilates the internal space of the soundproof chamber and adjusts the internal temperature. For example, a fan 22 capable of sucking indoor air and discharging it to the outside can be mentioned. The fan 22 operates to form an updraft, directing indoor air from the floor to the ceiling.

The air-conditioning equipment operates based on the control by the control unit from the completion of payment until the scheduled use time elapses. These electronic devices are adapted to receive power from, for example, a power outlet provided indoors or outdoors via a power plug. Further, the user can use the connection port 23 of the electronic device provided in the room as needed.

By the way, from the viewpoint of disaster prevention, the soundproof room 11 uses a nonflammable material for the sound absorbing material 12a on the inner wall surface and the tile material 12c laid on the floor surface, but it is usually surrounded by a wall or the like inside the building. When a new space is constructed, it may be necessary to add disaster prevention equipment depending on the degree of sealing. Under these circumstances, the ceiling 12b of the soundproof chamber 11 is provided with an automatic fire extinguishing device 24 for detecting an abnormality at an early stage and minimizing damage in the case of a fire in the room.

The automatic fire extinguisher 24 is a downward discharge type fire extinguisher (sprinkler), and as shown in FIG. 8, the fire extinguisher container 25 filled with the fire extinguishing agent and the fire extinguishing agent container 25 are provided at the center of the lower end of the fire extinguishing agent container 25. It is integrally equipped with a discharge nozzle 26 capable of discharging a fire extinguishing agent into a room by receiving the detection of a built-in heat sensing unit (not shown). Further, on both sides of the discharge nozzle 26, a pressure filling port 27 is attached to one side and a pressure gauge (gauge) 28 is attached to the other side. A low melting point metal is used for the heat sensing part, and when the heat collecting plate 26a at the lower end of the discharge nozzle 26 senses heat from the fire source, the low melting point metal melts and the pressurized gas in the container is sealed. The stopper and the heat collecting plate 26a are blown off, and the extinguishing agent starts to be released.

Here, the mounting position of the automatic fire extinguishing device 24 is set in consideration of the arrangement of the lighting 19, the speaker 21, the fan 22, various cover members 29, and the like so as not to lose the functionality of the soundproof chamber 11. (Fig. 3). In particular, the position of the discharge nozzle 26, that is, the position of the heat detection unit and the position of the fan 22 are in a side-by-side relationship so as to promote the rise of heat from the fire source in the updraft formed by the operation of the fan 22. It is provided so as to be. Further, as shown in FIGS. 4 and 6, the fire extinguishing agent container 25 is placed outside the ceiling 12b by arranging the discharge nozzle 26 at the height position of the ceiling 12b, that is, corresponding to the opening 12d position of the ceiling 12b. It is provided in. The fire extinguishing agent container 25 is covered with a box-shaped fire extinguishing device cover 30, and the fire extinguishing agent container 25 can be attached to and detached from the mounting portion 31 provided on the upper plate 30a of the fire extinguishing device cover 30.

The mounting portion 31 is a pair of fixing metal fittings having a mating surface that abuts in the vertical direction, and the upper metal fitting 31a is fixed to the lower surface of the upper plate 30a and the lower metal fitting 31b is fixed to the upper surface of the fire extinguishing agent container 25. As a result, the hook 31c of the lower metal fitting 31b is inserted into the engagement hole provided on the mating surface of the upper metal fitting 31a, and the fire extinguishing agent container 25 is rotated horizontally with respect to the fire extinguishing device cover 30, so that the hook 31c is raised. The automatic fire extinguishing device 24 is fixed in the fire extinguishing device cover 30 by engaging with the metal fitting 31a.

The fire extinguishing device cover 30 is provided at a position retracted inward with respect to the position of the outer wall surface of the housing 12 (FIG. 3). The height dimension of the fire extinguishing device cover 30 is formed as small as possible so that the discharge nozzle 26 is aligned with the height position of the ceiling 12b of the soundproof chamber 11 with the automatic fire extinguishing device 24 fixed to the upper plate 30a. .. On the other hand, the width dimension is similarly formed to be as small as possible so as to correspond to the outer diameter dimension of the fire extinguishing agent container 25.

As described above, since the soundproof chamber 11 is provided with the integrated automatic fire extinguishing device 24 including the fire extinguishing agent container 25 on the ceiling 12b, the initial fire can be quickly suppressed without depending on human operation. Moreover, since the fan 22 provided on the ceiling 12b at the same height as the automatic fire extinguishing device 24 forms an updraft in the soundproof chamber 11 by its operation, the heat from the fire source is promoted to rise quickly and quickly. Reliable heat detection is possible.

Further, since the soundproof chamber 11 can be transported while the automatic fire extinguishing device 24 is provided on the ceiling 12b, the soundproof chamber 11 can be immediately put into use without any work involved in the installation. That is, a structure of the soundproof room 11 capable of exhibiting an excellent disaster prevention function in an emergency can be obtained while facilitating the installation, thereby promoting its safe use in various environments in which the soundproof room 11 is installed. It will be gained.

Further, since the fire extinguishing agent container 25 is provided on the outside of the ceiling 12b by arranging the discharge nozzle 26 provided in the automatic fire extinguishing device 24 corresponding to the height position of the ceiling 12b, the space utilization efficiency in the soundproof chamber 11 can be improved. Can be enhanced. Moreover, since the fire extinguishing device cover 30 can be formed small in combination with the integrated structure of the automatic fire extinguishing device 24, the appearance of the soundproof chamber 11 is not spoiled, and the thickness increases over the entire ceiling 12b. The inconvenience of that is also eliminated.

In addition, since the fire extinguishing device cover 30 is provided with a mounting portion 31 to which the fire extinguishing agent container 25 can be attached and detached, the automatic fire extinguishing device 24 can be stably held at the ceiling 12b position. Moreover, since the mounting portion 31 is a pair of fixing brackets having a mating surface that abuts in the vertical direction, it can be easily attached and detached even when the mounting space is limited.

Further, since the fire extinguishing device cover 30 is provided at a position retracted inward with respect to the position of the outer wall surface of the housing 12, there is no possibility of contact with other structures when the soundproof chamber 11 is installed. In particular, even in a situation where the soundproof chamber 11 has to be inclined and passed through, such as in a place where the frontage of the building is narrow, the position of the fire extinguishing device cover 30 can be kept low for safe and quick transportation.

Further, as described above, the reliability of the automatic fire extinguishing device 24 can be improved by the fan 22 provided on the ceiling 12b of the soundproof chamber 11, but in addition to this, the smoke discharged from the fan 22 can improve the reliability of the automatic fire extinguishing device 24. Since the occurrence of a fire in 11 can be recognized by an outside person, it is possible to take a prompt and accurate response required as an initial action in an emergency.

The present invention is not limited to the above-mentioned embodiment, and the soundproof room can be equipped with various equipment necessary for disaster prevention in addition to the fire extinguishing equipment. It may be a moving object such as an airplane. Further, the shape of the housing is not limited to a rectangular parallelepiped, but may be a cylindrical shape, and can accommodate not only one person but also two or more people as long as the advantages of the flexible portable soundproof room are not impaired. It can be formed with a space. Further, if the automatic fire extinguishing device is provided with a compact integrated one on the ceiling, the specifications and mounting position can be appropriately changed. In addition, the shape of the fire extinguishing device cover and the mounting portion is arbitrary, and the opening on the ceiling surface where the discharge nozzle is located may be covered with a decorative plate or the like. Further, the fan has a remarkable effect by being installed on the ceiling surface, that is, on the same surface as the surface on which the automatic fire extinguishing device is installed, but the fan is not limited to this, and the side depending on the environment in which the soundproof room is installed. It can be changed as appropriate, such as by installing it on the upper part of the wall surface.

11 ... Soundproof room, 12 ... Housing, 12a ... Sound absorbing material, 12b ... Ceiling, 12c ... Tile material, 12d ... Opening, 13 ... Door, 13a ... Handle, 13b ... Door glass, 14 ... Caster, 15 ... Adjuster, 16 ... Sofa, 17 ... Operation reception, 18 ... Equipment, 19 ... Lighting, 20 ... Surveillance camera, 21 ... Speaker, 22 ... Fan, 23 ... Connection port, 24 ... Automatic fire extinguishing device, 25 ... Fire extinguishing agent container, 26 ... Discharge Nozzle, 26a ... Heat collecting plate, 27 ... Pressure filling port, 28 ... Pressure gauge, 29 ... Cover member, 30 ... Fire extinguisher cover, 30a ... Upper plate, 31 ... Mounting part, 31a ... Upper metal fitting, 31b ... Lower metal fitting, 31c ... Hook

Claims (7)

A housing having a floor, a side wall, a ceiling, and a door that can open and close the doorway provided on the side wall in a space inside a building equipped with commercial power supply equipment and firefighting equipment among places where various people pass. A work space closed by the body is formed, and a fire extinguishing system that does not require a power source and is added to the ceiling separately from the existing fire-fighting equipment and functions independently of the fire-fighting equipment is installed. It is a fire-fighting countermeasure structure of a portable soundproof room in which a table provided in the office space is included in the fire extinguishing agent discharge range and a discharge nozzle faces the office space.
The fire extinguishing equipment includes a short pipe-shaped discharge nozzle whose length dimension is close to the radial dimension, a fire extinguishing agent container to which the discharge nozzle is fixed, a mounting portion for determining a mounting position, and a fire extinguisher. It is an automatic fire extinguishing device that integrally includes a heat sensing unit that senses heat generated, and discharges the fire extinguishing agent in the fire extinguishing agent container from the discharging nozzle by melting the low melting point metal used in the heat sensing unit. ,
The housing has an outer wall formed of a metal plate material and an inner wall formed of a non-combustible material, and a power supply circuit is arranged in a space along the inner side surface of the outer wall, and a power supply circuit is arranged on the power transmission side. By electrically connecting the power plug and the connection port on the power receiving side by the power supply circuit, a power source that takes commercial power to a computer or a portable information terminal brought into the office space via the connection port. Power can be supplied from the outlet,
The table has a table surface of a size that can be used by mounting the computer or a portable information terminal, and the connection port is arranged at a position that can be visually recognized toward the table.
The fire extinguishing agent container is formed to be smaller in height than the width, and has an outer peripheral surface obtained by rotating an arc around a vertical axis passing through the heat sensing portion.
A fire extinguishing structure for a soundproof room, characterized in that the ceiling is provided with a fire extinguishing device cover that covers the fire extinguishing agent container so that it is not directly visible. The power supply circuit extends to any one or more electronic devices of conference equipment, lighting, surveillance cameras, speakers, and air conditioning equipment as electronic devices provided in the housing, and the electronic devices with the electronic devices. The fire countermeasure structure for a soundproof room according to claim 1, further comprising a switch for switching from an energized state to a cut-off state or vice versa. The fire countermeasure structure for a soundproof chamber according to claim 1, wherein the housing is provided with a communication circuit capable of transmitting and receiving data to and from an external device via a network. The fire countermeasure structure of a soundproof room according to claim 3, wherein the data includes audio data and video data of a meeting held with a communication destination. The soundproofing according to claim 1, wherein the housing is provided with a lock that can lock and unlock the door and a control unit that unlocks or locks the door based on a remote control signal from the outside. Room fire protection structure. The office space is provided with seats used in pairs with the table.
The soundproof room according to any one of claims 1 to 5, wherein the discharge nozzle faces the office space at a position where both the table and the seat are included in the discharge range of the fire extinguishing agent. Fire protection structure. In the office space, the depth from the doorway and the width are almost equal, and the table is provided on one side and the seat is provided on the other side so as not to obstruct entry and exit.
The door is an outward-opening door that opens toward the outside of the room, and is configured to be openable and closable with a binding site with the housing as an axis.
The table extends in the depth direction, and the front side edge of the table surface is cut off in a straight line or a curved line in a range having an overlap with a projection line obtained by rotationally projecting the door toward the indoor side. The fire countermeasure structure for a soundproof chamber according to claim 6, wherein the table has an edge that is separated from the door in the depth direction.

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