JP2000107317A - Fire extinguisher utilizing pressurized fluid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To safely and securely extinguish a fire in an inaccessible place for a person. SOLUTION: A fire extinguisher is provided with a metallic pipe 12 provided along a fire preventive monitoring route and having a longitudinal cutout 12b, a sealing wire member 17 capable of sealing the cutout, a first and a second fluid supply means capable of supplying a fluid 15 having a fire extinguishing function from the one end or the other end of the metallic pipe 12, an internal moving body 18 capable of moving inside the metallic pipe 12, a wire-member drawing-in part 18c formed inside the internal moving body 18 for drawing in the sealing wire member 11, a fluid passage 18e provided inside the internal moving body and having first and second flow inlets, a connecting pipe 22 connected to the internal moving body 18 and whose end is projected to the outside of the metallic pipe 12 through a slot in which the sealing wire member is drawn and also communicated with the fluid passage 18e, first and second solenoid valves constituted in such a way that the first and second flow inlets can be opened or closed, a spray nozzle 27 fitted to the end of the connecting pipe 22 and capable of discharging the fluid into the fire protective monitoring route, and a controller.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a fire extinguisher using pressurized air. More specifically, a pressurized fluid is used to extinguish a fire that has occurred in a tunnel through which vehicles pass, inside a pipe that is difficult or impossible for humans to access, or inside a facility such as a chemical plant or underground passage. It relates to a fire extinguisher.

[0002]

2. Description of the Related Art Conventionally, as a fire extinguisher at a fire site, a fire extinguisher is a tank configured to store a fluid having a fire extinguishing function and spray the fluid toward the fire by operating a lever, or buried in a natural or underground environment. 2. Description of the Related Art There is known a fire pump truck equipped with an injection pump that sucks fluid from a drain such as a water pipe or a tank that stores fluid and injects the fluid toward a fire. In such a fire extinguisher or a fire pump truck, a fire extinguisher with a fire extinguisher moves to the fire site and discharges the fluid. The fire extinguishing worker transports the nozzle provided at the end of the extension hose, whose base end is connected to the fire pump of the fire pump truck, to the fire site, and extinguishes the fire by injecting the fluid discharged by the fire pump from the nozzle. ing.

[0003]

However, in the case of a fire inside a pipe or a facility where it is difficult or impossible for a human to physically enter or safely enter due to the presence of a toxic substance such as a toxic gas, a fire-extinguishing worker is required. However, there was a problem that the fire extinguisher or the nozzle at the end of the extension hose could not be transported at the fire site, and the fire could not be effectively extinguished.
Also, even if a fire extinguishing worker can approach the fire site, if the fire site is relatively far away from the fire extinguishing worker, it may take some time before the fire extinguishing worker moves to the fire site. In some cases, fire fighting cannot be started quickly. An object of the present invention is to provide a pressurized fire that can efficiently, safely and reliably extinguish a fire in a place where human access is difficult or impossible, a tunnel where vehicles pass, a chemical plant factory, an underground passage, and the like. An object of the present invention is to provide a fire extinguisher using a fluid.

[0004]

The invention according to claim 1 is
As shown in FIG. 1 to FIG. 3 and FIG. 7, a metal pipe 12 provided along the fire prevention monitoring path 11 and having a cut 12 b in the longitudinal direction over the entire length, and a cut 12 b arranged in the metal pipe 12 over the entire length of the metal pipe 12 are formed. A sealable wire rod 17 that can be closed, and a first and a second member that are provided at both ends of the metal pipe 12 and configured to be able to pressurize and supply a fluid 15 having a fire extinguishing function into the metal pipe 12 from one end or the other end of the metal pipe 12. Second fluid supply means 13, 14, an internal moving body 18 inserted into the metal pipe 12 so as to be movable in the metal pipe 12 by a fluid 15 supplied under pressure into the metal pipe 12, A wire pull-in portion 18c formed inside and pulling the sealing wire 17 into the metal pipe 12, and provided inside the internal moving body 18 at both ends into the metal pipe 12. A fluid passage 18e having first and second inlets 18f and 18g for the fluid 15 to be supplied, and a cut 12b whose base end is connected to the internal moving body 18 where the wire drawing-in portion 18c is located and into which the sealing wire 17 is drawn. The tip projects outside the metal pipe 12 through the
e and the normally closed first and second solenoid valves provided at both ends of the fluid passage 18e of the internal moving body 18 so as to open the first and second inflow ports 18f and 18g. 19, 21 and a fluid passage 18 attached to the tip of a connecting pipe 22 protruding outside the metal pipe 12.
e, the injection nozzle 27 configured to discharge the fluid 15 toward the fire prevention monitoring path 11, and the first and second fluid supply units 13, 14, and either the first solenoid valve 19 or the second solenoid valve 21. One of them is opened to stop the injection nozzle 27 at a predetermined position of the fire prevention monitoring path 11 and the injection nozzle 27 is stopped.
Discharge controller 52 for discharging the fluid 15 from the fluid
and a fire extinguisher using a pressurized fluid comprising:

[0005] In the fire extinguisher according to claim 1,
When the first and second solenoid valves 19 and 21 are not operated, the first and second inlets 18f and 18g are closed, and the metal pipe 1 is turned on by one of the first and second fluid supply means 13 and 14.
By supplying the fluid 15 into the metal pipe 12 from one end or the other end of 2, the internal moving body 18 moves inside the metal pipe 12, and the spray nozzle 27 moves to the fire spot together with the internal moving body 18. First or second solenoid valve 19, 21
Of the metal pipe 12 is opened by opening one of the first and second inlets 18f and 18g by operating either one of the first and second fluid supply means 13 and 14 located on the opened side. Metal pipe 12 from one end or the other
When the fluid 15 is supplied to the inside, the fluid 15 supplied to the metal pipe 12 is opened first or second inlet 18f,
18g flows into the fluid passage 18e, and the fluid passage 18e
Reaches the injection nozzle 27 via the connecting pipe 22, and the fluid that has reached the injection nozzle 27 is discharged from the injection port of the injection nozzle 27 toward the fire prevention monitoring path 11 to extinguish the fire.

According to a second aspect of the present invention, there is provided the fire extinguisher according to the first aspect, wherein the connecting pipe 22 is a flat pipe having a thickness slightly smaller than the gap 12b. In the fire extinguisher according to the second aspect, the width of the cut 12b is reduced without reducing the fluid flow cross-sectional area in the connecting pipe 22 and the metal pipe 12
The size of the device is reduced, and the device is downsized.

A third aspect of the present invention is the invention according to the first or second aspect, wherein the external moving body 23 movable along with the internal moving body 18 along the metal pipe 12 comprises the metal pipe 1.
2 is a fire extinguisher using a pressurized fluid attached to a connecting pipe 22 protruding outside and an injection nozzle 27 attached to an external moving body 23. In the fire extinguishing apparatus according to the third aspect, since the external moving body 23 is attached to the connecting pipe 22, another auxiliary tool, for example, a turning device of a surveillance camera, a turning device of an injection nozzle, or electric power for driving these devices. The mounting area of the supply battery and the like can be increased, and if the injection nozzle 27 is mounted on the external moving body 23 via the turning device of the injection nozzle, the injection direction of the fluid 15 can be changed to be effective at a fire spot. Fire extinguishing work can be performed.

The invention according to claim 4 is the invention according to claim 3, further comprising, as shown in FIGS. 5 and 6, a surveillance camera 28, a receiving antenna 31 for turning the surveillance camera 28, A transmitting antenna 32 for transmitting a video signal from the monitoring camera 28 is a fire extinguisher using a pressurized fluid attached to the external moving body 23. In the fire extinguisher according to the fourth aspect, the fire extinguishing worker can perform the fire extinguishing activity while checking the fire condition based on the image captured by the surveillance camera 28, and can more effectively perform the fire extinguishing work at the fire site. it can.

A fifth aspect of the present invention is the invention according to the fourth aspect, wherein the surveillance camera turning signal line 36 and the surveillance camera image transmission for facing the reception antenna 31 and the transmission antenna 32 in contact or non-contact, respectively. A signal line 37 is a fire extinguisher using a pressurized fluid laid along the metal pipe 12. In the fire extinguisher according to the fifth aspect, the fire extinguishing worker can check the image captured by the surveillance camera 28 in a place other than the fire prevention monitoring path 11 to check the fire situation, and the fire extinguishing worker can operate under a safe situation. Fire fighting activities can be performed.

The invention according to claim 6 is the invention according to claim 3, wherein the electromagnetic valve control signal lines 38a and 38b are laid along the metal pipe 12, and the electromagnetic valve control signal lines 38
a, 38b and a signal transmitting and receiving member 33a, 33b for transmitting and receiving a signal in a contact or non-contact state with the a, 38b.
The electromagnetic valve control circuits 29a and 29b for opening the first and second electromagnetic valves 19 and 21 in response to the signal b are fire extinguishing devices using a pressurized fluid provided in the external moving body 23. In the fire extinguisher according to the sixth aspect, an external signal through the electromagnetic valve control signal lines 38a and 38b is transmitted to the signal transmitting / receiving member 3.
3a and 33b, the first and second solenoid valves 19 and 2 can be easily received from a location outside the fire prevention monitoring path 11.
As a result, the fire extinguishing worker can perform fire extinguishing activities under a safer condition.

The invention according to claim 7 is the invention according to claim 4, wherein the power supply line 34 is laid along the metal pipe 12, and the pantograph 44 slidably contacts the power supply line 34. A pantograph 44 provided on the moving body 23 is a fire extinguisher using a pressurized fluid electrically connected to the first and second solenoid valves 19 and 21, the turning device 28c of the monitoring camera, and the turning device 27c of the injection nozzle. is there. In the fire extinguisher according to claim 7, the first and second solenoid valves 1 mounted on the internal moving body 18 or the external moving body 23 are provided.
Electric power in electric devices such as the turning devices 9 and 21 and the turning device 28c of the surveillance camera 28 can be supplied from the outside, and the maintenance of the device itself is simplified by eliminating the need for mounting a power supply means such as a battery.

[0012]

Embodiments of the present invention will now be described with reference to the drawings. As shown in FIG. 7, the fire prevention monitoring route in this embodiment is a tunnel 1 provided in a mountainous area.
1, a metal pipe 12 is provided over the entire length of the ceiling 11a of the tunnel 11 via an attachment member 11b. This tunnel 11 is provided with a plurality of smoke sensors or temperature sensors 11d,..., 11e (FIG. 6) at predetermined intervals so that the occurrence of a fire inside the tunnel 11 can be detected. First and second fluid supply means 13 and 14 are provided on the outside at both ends of the tunnel 11.
The first and second fluid supply means 13 and 14 are provided with a water tank 13 storing water 15 which is a fluid having a fire extinguishing function.
a, 14a and supply pumps 13b, 14b. One end or the other end of the metal pipe 12 and the supply pumps 13b, 14
b is connected by connecting hoses 13c and 14c. The first and second fluid supply means 13 and 14 are provided with a supply pump 1
When the 3b and 14b are rotated forward, the water 15 in the water storage tanks 13a and 14a is sucked to supply the water 15 into the metal pipe 12 from one end or the other end of the metal pipe 12, and the supply pump 13
When the b and 14b are reversed, the water 15 supplied into the metal pipe 12 is transferred from one end or the other end of the metal pipe 12 to the water tank 1.
It is configured to discharge to 3a and 14a.

As shown in FIG. 1, a pair of mounting members 11b are provided at predetermined intervals on a mounting base 12e continuously provided in the longitudinal direction on the outer surface of the metal pipe 12, and are provided at an upper end of the mounting member 11b. The provided mounting plate 11c is attached to the ceiling 11a.
The metal pipe 12 is screwed to the tunnel 1
1 over its entire length. As shown in FIGS. 1 to 3, a fluid flow path 12 a is formed inside the metal pipe 12 over the entire length of the metal pipe 12, and a cut 12 b communicating from the fluid flow path 12 a to the outer surface of the metal pipe 12 is formed in the metal pipe 12. It is formed over the entire length of the metal pipe 12. The cut 12b is a metal pipe 12 in this embodiment.
A narrow width portion 12c formed on an upper surface of the wire member and through which a connecting pipe 22 described later can pass, and a substantially semicircular wire material accommodating portion 12 capable of accommodating substantially half of the sealing wire material 17 closing the cut 12a.
d. The sealing wire 17 is made of a flexible metal rope having a substantially circular cross section so as to withstand heat from a fire, and is disposed over the entire length of the fluid flow path 12a. The width of the small width portion 12c is smaller than the outer diameter of the sealing wire 17 and slightly larger than the thickness of the connecting pipe 22, and the inner diameter of the wire accommodating portion 12d is the same as the outer diameter of the sealing wire 17 or the sealing wire 17. Is formed slightly larger than the outer diameter of.

An internal moving body 18 is inserted into the metal pipe 12, and the internal moving body 18 is configured to be movable in the metal pipe 12 by water 15 supplied to the metal pipe 12. As shown in FIGS. 2 and 3, the internal moving body 18 has a base 18a and a pair of pressure receiving portions 18b, 18b provided at both ends of the base 18a. The base 18a is formed of a metal material such as carbon steel or stainless steel, and the pair of pressure receiving portions 18b, 18b are formed of heat-resistant synthetic rubber or the like. Specifically, the pressure receiving portion 18b is formed by integrally forming metal cores (not shown) slightly smaller than the pressure receiving portion 18b at both ends of the base portion 18a with a metal material, and attaching synthetic rubber to the outer surfaces of these metal cores. It is preferable to form by carrying out.

The outer diameter of the pair of pressure receiving portions 18b, 18b is formed to be equal to or slightly larger than the inner diameter of the fluid flow passage 12a, and the outer peripheral surface of the pressure receiving portion 18b is formed inside the fluid flow passage 12a. It is configured to be in close contact with the peripheral surface. Thus, the flow of the water 15 on both sides of the pressure receiving portion 18b is prevented, and the internal moving body 18 can travel with the water 15 sent from one end or the other end into the fluid flow path 12a. Further, the outer diameter of the base 18a is formed smaller than the fluid flow channel 12a, and the outer peripheral surface of the base 18a is configured not to contact the inner peripheral surface of the fluid flow channel 12a. Thereby, the sliding resistance of the internal moving body 18 is reduced.

As shown in FIG. 1 and FIG.
A wire pull-in portion 18c is formed on the base 18a of the wire 8.
The wire pull-in portion 18c is an insertion hole formed in the base 18a. By inserting the sealing wire 17 into the wire pull-in portion 18c, the sealing wire 17 located at the base 18a is drawn into the fluid flow path 12a. Configured to be rare. As shown in detail in FIG. 4, a guide groove 18d is formed in the pair of pressure receiving portions 18b of the internal moving body 18 so as to face the wire rod accommodating portion 12d. Guide groove 18d
Is provided to accommodate the sealing wire 17 drawn into the fluid flow path 12a again in the wire housing portion 12d and close the cut 12b with the sealing wire 17.

As shown in FIG. 1 and FIG.
Inside 8, a fluid passage 18 e through which the water 15 supplied into the metal pipe 12 flows is formed. Fluid passage 18e
Are first and second inlets 18f and 18g formed of circular holes formed in the pair of pressure receiving portions 18b and 18b, and communication holes formed in the base 18a near the first and second inlets 18f and 18g, respectively. 18h, 18h, and the fluid passage 1
8e is formed so as to communicate with the first and second inlets 18f, 18g. Base 18 facing communication holes 18h, 18h
a is provided with normally closed first and second solenoid valves 19 and 21, respectively. The first and second solenoid valves 19 and 21 are
The lead wires 19b and 21b of the first and second solenoid valves 19 and 21 are laid outside the metal pipe 12 through cuts 12b along both sides of a connecting pipe 22 to be described later. 29a, 29b. The normally closed first and second solenoid valves 19 and 21 are connected to the lead wire 1.
When current for opening does not flow through 9b, 21b, the projecting shafts 19a, 21a are inserted into the communication holes 18h, 18h to close the first and second inflow ports 18f, 18g. Further, when a current for opening through the lead wire 19b or 21b flows, the protruding shaft 19a or 21a is immersed, detaches from the communication hole 18h or 18h, and opens the first and second inlets 18f or 18g. Is done.

As shown in FIG. 1 to FIG.
The base end of the connecting pipe 22 is connected to the internal moving body 18 where 8c is located. The connecting pipe 22 is a flat pipe having a thickness slightly smaller than the gap 12b, and the base end of the connecting pipe 22 is connected to the base 18a of the internal moving body 18,
The pipe hole 22a (FIGS. 1 and 2) of the connection pipe 22 is connected to communicate with the fluid passage 18e. The end of the connecting pipe 22 is a cut 12 where the sealing wire 17 is drawn.
It is formed so as to protrude to the outside of the metal pipe 12 through b. Connecting pipe 2 protruding outside metal pipe 12
An external moving body 23 is attached to 2. External mobile unit 23
Is formed by bending a steel plate so as to surround the metal pipe 12, and its upper end is attached to a mounting hole 22 b formed on both sides of the connecting pipe 22 via a bolt 24. On the inner side of the lower side of the external moving body 23, a roller 26 that rolls by contacting the outer surface of the metal pipe 12 with the outer surface thereof is provided.
(FIGS. 1 and 3) are provided. Internal moving object 1
When the 8 moves, the external moving body 23 is configured to be movable along the metal pipe 12 together with the internal moving body 18.

As shown in FIG. 1, an injection nozzle 27 having an injection port directed downward is attached to the external moving body 23 via a base 27a. As shown in FIG. 6, the base 27a incorporates a nozzle turning device 27c. The turning device 27c is configured to be able to turn the injection nozzle 27 in a direction indicated by a broken arrow in FIG. 1 orthogonal to the moving direction of the external moving body 23 by driving an internal stepping motor (not shown).
The base 27a further includes a built-in nozzle angle control circuit 30 for supplying power to and controlling the nozzle turning device 27c. The external moving body 23 includes a signal transfer member 30a for supplying a turning signal to the nozzle angle control circuit 30. Provided. Returning to FIG. 1, the injection nozzle 27 is connected to the tip of the connection pipe 22 protruding outside the metal pipe 12 by a connection hose 27 b, and the water 15 flowing into the fluid passage 18 e of the internal moving body 18 is connected to the nozzle 15.
Reaches the injection nozzle 27 via the connection pipe 22 and the connection hose 27b, and the injection nozzle 27 directs the water 15 which has reached the injection nozzle 27 from the injection port to a predetermined position in the tunnel 11 which is a fire prevention monitoring path. And configured to be releasable.

The external moving body 23 has a surveillance camera 2
8 is mounted via a vibration isolator 28a. As shown in FIG. 6, the anti-vibration table 28a rotatably supports the surveillance camera 28, and the anti-vibration table 28a includes a camera image transmission circuit 28b for transmitting an image from the surveillance camera 28, A turning device 28c, and a camera angle control circuit 28d for supplying power to the turning device 28c and controlling the turning device 28c are built in. The turning device 28c is configured to be able to turn the monitoring camera 28 in a direction indicated by a broken arrow in FIG. 1 orthogonal to the moving direction of the external moving body 23 by driving an internal stepping motor (not shown). As shown in FIGS. 1 and 6, a receiving antenna 31 for turning the surveillance camera 28 and a transmission antenna 32 for transmitting a video signal from the surveillance camera 28 are attached to the external moving body 23.
Further, the first and second solenoid valves 19 and 2 are provided on the external moving body 23.
, A solenoid valve control circuit 29a,
29b, and signal transmission / reception members 33a and 33b for supplying an opening signal to the solenoid valve control circuits 29a and 29b, respectively.

On the other hand, a power supply line 34 is laid on the metal pipe 12 along the metal pipe 12 and
3 is provided with a pantograph 44 that slidably contacts the electric wire 34. The pantograph 44 is connected to each camera turning device 2 via the camera angle control circuit 28d, the nozzle angle control circuit 30, and the solenoid valve control circuits 29a and 29b.
8c, the nozzle turning device 27c and the solenoid valves 19 and 21 are electrically connected. As shown in FIG.
Is laid on the mounting base 12e via the insulator 34a and the first stay 34b. The pantograph 44 includes an outer cylinder 44a attached to the external moving body 23, an inner cylinder 44b slidably inserted into the outer cylinder 44a, and a slidable power supply line 34 fixed to the tip of the inner cylinder 44b. A current collector 44c in contact with the
A spring 44d housed in the outer cylinder 44a and the inner cylinder 44b and pressing the current collector 44c against the power supply line 34;

Returning to FIGS. 1 and 6, the metal pipe 12 has a surveillance camera turning signal line 36 and a surveillance camera image transmission signal line 37 which face the reception antenna 31 and the transmission antenna 32 in a non-contact manner, respectively. Transfer member 33a,
The solenoid valve control signal lines 38a and 38b and the nozzle turning signal lines 30b which come into contact with and are opposed to the nozzles 33b and 30a, respectively.
Are laid respectively. Surveillance camera turning signal line 36 and surveillance camera video transmission signal line 3 in the present embodiment
Reference numeral 7 denotes a leaky coaxial cable, which is a signal line 38 for solenoid valve control.
The a and 38b and the nozzle turning signal line 30b are electric wires provided in the same manner as the power supply line 34. The solenoid valve control signal lines 38a and 38b and the nozzle turning signal line 3
The pantograph having the same structure as the above-described pantograph 44 is used as the signal transmitting / receiving members 33a, 33b, 30a that come into contact with 0b.

The leaky coaxial cable which is the surveillance camera turning signal line 36 and the surveillance camera video transmission signal line 37 has the same structure, and the leaky coaxial cable 36 which is the surveillance camera turning signal line will be described as a representative. As shown in 5,
The leaky coaxial cable 36 includes an inner conductor 36a and an inner conductor 3
An insulating pipe 36b (polyethylene) covering 6a;
It has an outer conductor 36c fitted into the insulating pipe 36b, and a conductor covering member 36d that covers the outer conductor 36c. The cable 36 is supported by a support wire 36e (twisted galvanized steel), and the support wire 36e is a support wire cover member 36 formed integrally with the conductor cover member 36d.
f. The cable 36 is routed along the metal pipe 12 by gripping the support wire covering member 36f together with the support wire 36e with a cable holder 49 protruding from the mounting base 12e. By using this cable 36, an external communication system can be accessed even in a radio wave insensitive zone such as a tunnel, and radio waves are uniformly radiated along the cable 36, so that high-quality communication with little electric field fluctuation is possible.

As shown in FIG. 6 and FIG.
The monitor room 51 provided outside the monitor is provided with a monitor television 51 for displaying an image captured by the monitoring camera 28 and a main controller 52. This main controller 52
Is a liquid discharge controller 52a for controlling the first and second fluid supply means 13 and 14, and the first and second solenoid valves 19 and 21, a photographing controller 52b, and a power supply circuit 52.
c. The monitor television 51 is mainly controlled by the photographing controller 52b to transmit the monitoring camera video transmission signal line 37.
Is configured to capture an image captured by the surveillance camera 28 based on the image signal from. Liquid discharge controller 52
a is connected to an operation panel 53 for operating the first and second fluid supply means 13 and 14 and the first and second solenoid valves 19 and 21. The output of the liquid discharge controller 52a is supplied to supply pumps 13b and 14b. Supply pump control circuits 13 d and 14 d which also supply power to the power supply and control the same, and respective signal lines 38 a, 38 b and 30 laid along the metal pipe 12.
b. The power supply circuit 52c includes a power supply line 34,
It is connected to supply pumps 13b and 14b via supply pump control circuits 13d and 14d. The liquid discharge controller 52a controls the first and second fluid supply means 13 and 14 by operating the operation panel 53 of the fire extinguishing operator, and also controls the first and second electromagnetic sources via the respective signal lines 38a, 38b and 30b. It is configured to control the valves 19 and 21 and to turn the injection nozzle 27.

The operation of the fire extinguisher thus constructed will be described. First, a sealing pipe 17 is attached to a metal pipe 12 provided on a ceiling 11a of a tunnel 11, which is a fire prevention monitoring route.
Through. The insertion of the sealing wire 17 is performed in the guide groove 1.
A wire routing traveling body (not shown) having the same shape as the internal moving body 18 except that the internal moving body 8d is not formed is inserted into the fluid flow path 12a from one end of the metal pipe 12, and the traveling body is used for sealing. After attaching one end of the wire 17, the metal pipe 12
The pressurized water 15 is sent to the fluid flow path 12a by the second fluid supply means 14 connected to one end of the fluid path. At this time, although the water 15 slightly leaks from the slit 12 b, the wire rod traveling body travels through the fluid flow path 12 a of the metal pipe 12 by the pressure of the pressurized water 15 and reaches the other end of the metal pipe 12. Next, after taking out the above-mentioned wire rod traveling body from the fluid flow path 12a, the internal moving body 18 is inserted into the fluid flow path 12a, and the connecting pipe 22 is inserted into the cut 12b. At this time, the sealing wire 17 inserted into the fluid flow path 12a is housed in the guide groove 18d of the pressure receiving portion 18b and inserted into the wire pull-in portion 18c of the base 18a. In this state, the metal pipe 1
When the pressurized water 15 is fed into the fluid flow path 12a by the first fluid supply means 13 connected to the other end of the internal moving body 1,
8 travels from the other end to the one end in the fluid flow path 12a, and the sealing wire 21 is guided by the guide groove 18d and is housed in the wire housing portion 12d of the cut 12b. As a result,
The cut 12b is closed by the sealing wire 17 so that the fluid flow path 12a is kept watertight and the metal pipe 12
Is filled with water 15.

If it is detected that a fire has occurred in the tunnel 11 based on the detection output of one of a plurality of smoke sensors or temperature sensors 11d,... The worker moves to the fire site where the sensor that detects the surveillance camera 28 is installed,
The situation of the fire is confirmed by the video captured by the monitoring camera 28. The movement of the surveillance camera 28 is controlled by the internal moving body 18.
The internal moving body 18 travels by closing the first and second inlets 18f and 18g of the internal moving body 18 and the internal moving body 1 of the metal pipe 12.
8, the supply pump 13b or 14b of the fluid supply means 13 or 14 on the rear side in the forward direction is rotated forward to supply the water 15 into the metal pipe 12, and the supply pump of the fluid supply means 14 or 13 on the front side in the travel direction 14b or 13b is reversed so that water 15 is stored in the metal pipe 12 from the water storage tank 14a or 13b.
a.

As shown in FIG. 7, the second fluid supply means 14
First, the fire extinguishing operator operates the operation panel 53 to rotate the supply pump 14b of the second fluid supply means 14 in the forward direction to supply water 15 into the metal pipe 12. While supplying the water 15 stored in 14c, the supply pump 13b of the first fluid supply means 13 is reversed to discharge the water 15 from the metal pipe 12 on the front side in the traveling direction of the internal moving body 18 to the water storage tank 13a. . The internal moving body 18 is controlled by the normally closed first and second solenoid valves 19 and 21.
Since the first and second inflow ports 18f and 18g are closed, the water 15 does not flow through the fluid flow path 18e, and the water 15 supplied by the second fluid supply Extrude by pressure. As a result, the internal moving body 18 travels together with the external moving body 23 and the monitoring camera 28
Moves from the state shown by the broken line in FIG. 7 to the fire spot as shown by the solid line arrow together with the injection nozzle 27.

When the surveillance camera 28 reaches the fire site, the traveling of the internal moving body 18 is stopped. Internal moving object 1
In order to stop the travel of 8, the supply of the water 15 to the metal pipe 12 by the second fluid supply means 14 is stopped,
The discharge of the water 15 from the metal pipe 12 of the first fluid supply means 13 to the water storage tank 13a is stopped. The fire extinguishing worker starts the fire extinguishing work by confirming the fire condition on the monitor television 51 on which the image captured by the stopped surveillance camera 28 is displayed.

In the fire extinguishing operation, the fire extinguishing operator operates the operation panel 53 to supply a signal to the electromagnetic valve control signal line 38a or 38b, and the projecting shaft 19a of the first or second electromagnetic valve 19 or 21 is operated.
Or 21a is immersed, and water 15 is supplied into the metal pipe 12 by the fluid supply means 13 or 14 located on the immersed side. For example, when a signal is supplied to the solenoid valve control signal line 38a, a current flows through the first solenoid valve 19 via the lead wire 19b, and the protruding shaft 19a of the first solenoid valve 19 as shown in FIG.
Enters and disengages from the communication hole 18h, and the first inlet 18f
Is released. At the same time, the supply pump 13b of the first fluid supply means 13 located on the immersed side is rotated forward to suck the water 15 in the water storage tank 13a, and the water 15 is introduced into the metal pipe 12 from the other end of the metal pipe 12. 15 is supplied. The water 15 supplied into the metal pipe 12 flows from the opened first inlet 18f into the fluid passage 18e as shown by the solid line arrow in the drawing, and the water 15 flowing into the fluid passage 18e.
Is a connecting pipe 22 and a connecting hose 27 as shown in FIG.
The fluid that has reached the injection nozzle 27 via b, and has reached the injection nozzle 27, is discharged from the injection port of the injection nozzle 27 toward the fire site in the fire prevention monitoring path 11 and extinguishes the fire.

If the fire does not extinguish even when the remaining amount of the water 15 in the water tank 13a of the first fluid supply means 13 becomes small, then the water 1 in the water tank 14a of the second fluid supply means 13
Discharge 5 to fire site. In order to release the water 15 from the water storage tank 14a of the second fluid supply means 13, the fire extinguishing operator operates the operation panel 53 to stop the signal supply to the electromagnetic valve control signal line 38a, and to release the electromagnetic valve control signal. A signal is supplied to the signal line 38b. Thus, the projecting shaft 19 of the first solenoid valve 19
a protrudes, and the protruding shaft 19a of the second solenoid valve 19 enters. Therefore, the projecting shaft 19a of the first solenoid valve 19 is
h, the first inlet 18f is closed, the projecting shaft 19a of the second solenoid valve 19 is separated from the communication hole 18h, and the second inlet 18g is opened. Next, the fire fighting worker
To operate the supply pump 14b of the second fluid supply means 14.
, The water 15 in the water storage tank 14 a is sucked, and the water 15 is supplied into the metal pipe 12 from one end of the metal pipe 12. Water 15 supplied into metal pipe 12
Flows into the fluid passage 18e from the opened second inflow port 18g, and is discharged from the injection port of the injection nozzle 27 through the connection pipe 22 and the connection hose 27b toward the fire site on the fire prevention monitoring path to extinguish the fire.

Next, another embodiment of the present invention will be described with reference to FIG. The fire prevention monitoring route in this embodiment is inside a pipe 72 buried under the road 71 on which the vehicle runs. A manhole 73 is provided between the pipe 72 and the ground 71 at predetermined intervals so that an inspection worker can enter the inside of the pipe 72 at predetermined intervals. A tube 74 is installed along its length. Here, 73a in the figure is a manhole cover. The metal pipe 12 is provided at a predetermined section of the tubular body 72 above the tubular body 72 via the mounting member 11b. Further, the fluid in this embodiment is water which is pressurized and flows through the inside of the water pipe 74 in advance, and is provided with the first and second fluid supply means 76 and 77.
Are constituted by electromagnetic water supply valves 76a and 77a, respectively.

That is, both ends of the metal pipe 12 are normally closed.
6a, 77a are connected to the water pipe 74 respectively,
When current does not flow through the lead wires (not shown) to the water supply valves 76a and 77a, both ends of the metal pipe 12 are closed, and when current flows through the lead wires, the water supply valves 76a and 77a are closed.
A and 77a are configured to be open so that pre-pressurized water flowing inside the water pipe 74 can be supplied from one end or the other end of the metal pipe 12. On the other hand, the metal pipes 12 near the water supply valves 76a, 77a are normally closed drain valves 76b, 77, respectively.
b, and when no current flows through the drain valves 76b, 77b via a lead wire (not shown), the drain nozzle 7
6c and 77c are closed, and when a current flows through the lead wire, the drain nozzles 76c and 77c are opened and the water inside the metal pipe 12 is discharged from the drain nozzles 76c and 77c to the outside of the metal pipe 12. Is done. The other configuration is the same as that of the above-described embodiment, and the description thereof will not be repeated.

In the fire extinguisher configured as above, the first
When the second inlets 18f and 18g are closed and the water supply valve 77a and the drain valve 76b of the first and second fluid supply means 76 and 77 are opened, for example, one of the metal pipes 12 (the right side in the figure) receives the metal. Water is supplied into the pipe 12. The water inside the metal pipe 12 is drained by a drain nozzle 76c of a drain valve 76b.
Is discharged into the pipe 72. Thereby, the internal moving body 1
Numeral 8 moves inside the metal pipe 12, and the injection nozzle 27 moves from the position shown by the broken line together with the internal moving body 18 as shown by the solid line arrow. After moving to the fire spot, when the water supply valve 77a and the drain valve 76b are closed, the supply of water into the metal pipe 12 and the discharge of water from the metal pipe 12 are stopped, and the movement of the internal moving body 18 is stopped. Injection nozzle 2
7 stops above the fire site indicated by the solid line.

After moving to the fire site, the second solenoid valve 21 is operated to open the second inlet 18g, and from one end (right side in the figure) of the metal pipe 12 to the inside of the metal pipe 12 through the water supply valve 77a. Water to the metal pipe 12
The water supplied into the inside flows into the fluid passage 18e from the opened second inlet 18g, and the water flowing into the fluid passage 18e reaches the injection nozzle 27 via the connection pipe 22, and the water reaches the injection nozzle 27. Is discharged from the injection port of the injection nozzle 27 toward the fire prevention monitoring path 11 to extinguish a fire. In addition, when water is supplied from the other end of the metal pipe 12 (left side in the figure) and the injection nozzle 27 is moved toward the right side in the figure, it is performed by opening the water supply valve 76a and the drain valve 77b. When water is supplied from the other end (left side of the figure) of the metal pipe 12 into the metal pipe 12 to extinguish a fire, the first solenoid valve 19 is operated to open the first inlet 18f. And the metal pipe 12 through the water supply valve 76a.
By supplying water into the metal pipe 12 from the other end (left side in the figure). The other operations are the same as those of the above-described embodiment, and the description thereof will not be repeated. If water that is pressurized and circulated in a water pipe in advance as a fluid having a fire extinguishing function is used, water that is a fluid can be supplied sufficiently for fire extinguishing activities for a long time.

In the above embodiment, the tunnel 11 provided in the mountainous area and the pipe 72 buried underground have been described as the fire prevention monitoring route. However, the fire prevention monitoring route is difficult for humans to access. It may be inside or outside a pipe, which may or may not be available, or a chemical plant or underground passage. Further, in the above-described embodiment, water has been described as a fluid having a fire extinguishing function. However, as long as the fluid has a fire extinguishing function without being limited to the above-described water, a liquid chemical having a fire extinguishing function, or nitrogen or carbon dioxide Or the like.

In the first embodiment described above, the water 15 as a fluid is stored in the water storage tanks 13a and 14a, and the water 15 is supplied to the metal pipe 1 by the supply pumps 13b and 14b.
2, but a water tank 1 storing water 15 as a fluid.
If 3a, 14a is installed on a hill higher than the metal pipe 12, water can be supplied to the metal pipe by its own weight, and an electromagnetic valve device can be used instead of the supply pumps 13b, 14b. Also, the supply pumps 13b, 1
When using 4b, the water 15 as a fluid may be groundwater or water in a nearby river. Even if such water is used, it is possible to supply water that is sufficiently fluid even for fire fighting for a long time. In the above-described embodiment, the smoke sensor or the temperature sensor is provided in the tunnel 11 as a means for detecting the occurrence of a fire. However, if the monitoring camera 28 is attached to the external moving body 23, this monitoring camera 28 May be moved periodically to detect the occurrence of a fire in the fire prevention monitoring route based on the video captured by the monitoring camera 28.

In the above-described embodiment, the fire extinguishing worker controls the internal moving body 18. However, the controller 52 automatically performs the control by the detection of the smoke sensor or the like. Alternatively, only the solenoid valves 19 and 21 may be operated. In the above-described embodiment, the power supply line 34 is laid along the metal pipe 12,
Pantograph 44 slidably in contact with power supply line 34
The power supply line 34 and the pantograph 44 can be eliminated if a battery for power supply is mounted on the external moving body 23.

Further, in the first embodiment described above, the first and second inflow ports 18f, 18g are closed by the first and second solenoid valves 19, 21, and the metal pipe 12 is closed by the second fluid supply means 14. Water 15 is supplied into the metal pipe 12 from the other end, and the water 15 in the metal pipe 12 on the front side in the traveling direction of the internal moving body 18 is discharged by the first fluid supply means 13 into the water storage tank 13a. Although the moving body 18 is moved, the inflow port 18f or 18g on the rear side in the traveling direction of the internal moving body 18 is closed, and the inflow port 18f or 18g in front of the traveling direction of the internal moving body 18 is opened. The water 15 may be supplied into the metal pipe 12 by the fluid supply means 13 or 14 on the rear side in the traveling direction of the moving member 18 to move the internal moving body 18. In this case, the water 15 in the metal pipe 12 on the front side in the traveling direction of the internal moving body 18 is filled with the opened first or second inlet 18f or 18g.
Then, the water 15 flowing into the fluid passage 18e flows into the fluid passage 18e, reaches the injection nozzle 27 via the connecting pipe 22, and is discharged to the fire prevention monitoring route. Therefore, in the case of a tunnel, the present device can be used as a watering device in daily inspection during drying.

[0039]

As described above, according to the present invention, a metal pipe provided along a fire prevention monitoring path and having a longitudinal cut along its entire length, a sealing wire capable of closing the cut, and a metal pipe First and second fluid supply means provided at both ends and configured to supply a fluid having a fire extinguishing function into the metal pipe from one end or the other end of the metal pipe, and are movably inserted in the metal pipe by the fluid. An internal moving body, a wire pull-in portion formed inside the internal moving body for drawing the sealing wire into the metal pipe, and a fluid provided inside the internal moving body and having first and second inlets for fluid at both ends. A passage, a connection pipe having a base end connected to the internal moving body where the wire drawing-in portion is located and a tip projecting outside the metal pipe through a cut in which the sealing wire is drawn in, and communicating with the fluid passage; First and second solenoid valves configured to be able to open and close the first and second inlets, and an injection nozzle attached to the tip of the connecting pipe and configured to discharge the fluid flowing into the fluid passage toward the fire prevention monitoring path. And a fluid discharge controller that stops the injection nozzle at a predetermined position of the fire prevention monitoring path and discharges the fluid from the injection nozzle,
With the first and second solenoid valves closing the first and second inlets, the controller uses one of the first and second fluid supply means to enter the metal pipe from one end or the other end of the metal pipe. By supplying the fluid, the internal moving body moves inside the metal pipe, and the injection nozzle can be moved to the fire spot together with the internal moving body. Further, the first and second solenoid valves open one of the first and second inflow ports by the controller, and the first or second fluid supply means located on the open side opens one end or the other end of the metal pipe. When the fluid is supplied into the metal pipe from the above, the fluid supplied into the metal pipe flows into the fluid passage from the opened first or second inlet, and the fluid flowing into the fluid passage is supplied to the injection nozzle via the connection pipe. Arrives and is released to the fire prevention monitoring route. As a result, even if the fire is in a place where it is difficult or impossible for humans to enter, the fire can be efficiently, safely and surely extinguished without the fire fighting worker approaching the site.

Further, if a flat pipe having a thickness slightly smaller than the cut is used as the connecting pipe, the width of the cut can be reduced without reducing the cross-sectional area of fluid flow in the connecting pipe to reduce the diameter of the metal pipe. The device can be miniaturized, and an external moving body that can move with the internal moving body along the metal pipe is attached to the connecting pipe that protrudes outside the metal pipe, and if the injection nozzle is attached to the external moving body, the external moving body can be moved. The body can increase the mounting area of other auxiliary tools, such as a monitoring camera, a spray nozzle tilting mechanism, or a battery for power supply for driving them, and move the spray nozzle to the outside via the spray nozzle tilting mechanism. When attached to the body, an effective fire extinguishing operation at a fire site can be performed by changing the fluid jetting direction. Furthermore, if the surveillance camera is attached to an external moving object, the firefighting worker can perform firefighting activities while checking the fire situation based on the video taken by the surveillance camera, and can perform firefighting work more effectively at the fire site. By laying various signal lines along a metal pipe and providing a signal transmitting / receiving member for transmitting / receiving a signal in a contact or non-contact state to those signal lines to an external moving body, a signal from the outside can be transmitted / received by a signal transmitting / receiving member. Can be easily received, and communication with the outside can be performed extremely easily and reliably. As a result, remote control of the ejection nozzle or the surveillance camera can be facilitated.

[Brief description of the drawings]

FIG. 1 is a diagram showing a fire extinguisher according to an embodiment of the present invention;
FIG.

FIG. 2 is a sectional view taken along line BB of FIG. 1;

FIG. 3 is a sectional view taken along line CC of FIG. 1;

FIG. 4 is a sectional view taken along line DD of FIG. 3;

FIG. 5 is an enlarged sectional view of a portion E in FIG. 1;

FIG. 6 is a diagram showing an electrical connection state of the device.

FIG. 7 is a sectional view of a tunnel to which the device is attached.

FIG. 8 is a sectional view corresponding to FIG. 7, showing a fire extinguisher according to another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Tunnel (fire prevention monitoring route) 12 Metal pipe 12b Break 13,76 1st fluid supply means 14,77 2nd fluid supply means 15 Water (fluid) 17 Wire for sealing 18 Internal moving body 18c Wire retraction part 18e Fluid passage 18f 1 inlet 18g second inlet 19 first solenoid valve 21 second solenoid valve 22 connecting pipe 23 external moving body 27 injection nozzle 27c nozzle turning device 28 monitoring camera 28c camera turning device 29a, 29b electromagnetic valve control circuit 31 receiving antenna 32 Transmission antennas 33a, 33b Signal transfer member 34 Power supply line 36 Monitoring camera turning signal line 37 Monitoring camera video transmission signal line 38a, 38b Solenoid valve control signal line 44 Pantograph 52 Fluid release controller 72 Tube (fire prevention monitoring path) )

Claims (7)

[Claims] 1. A metal pipe (12) provided along a fire protection monitoring path (11, 72) and having a longitudinal cut (12b) over its entire length; and a metal pipe (12) in the metal pipe (12). A sealing wire (17) arranged over the entire length and capable of closing the cut (12b); and the metal pipe (1) provided at both ends of the metal pipe (12).
First, a fluid (15) having a fire extinguishing function can be supplied under pressure from one end or the other end of the metal pipe (12) into the metal pipe (12).
And second fluid supply means (13, 14, 76, 77), and the metal pipe (12) movably in the metal pipe (12) by a fluid (15) supplied by being pressurized into the metal pipe (12).
An internal moving body inserted into the internal moving body; and a sealing wire formed inside the internal moving body.
(17) to the inside of the metal pipe (12)
8c), first and second inlets of a fluid (15) provided inside the internal moving body (18) and supplied to the metal pipe (12) at both ends.
(18f, 18g), a fluid passage (18e), and the internal moving body (18) in which the wire retraction part (18c) is located
A connection pipe (a base end of which is connected to the pipe (12b) through which the sealing wire (17) is drawn in, the tip of which protrudes outside the metal pipe (12) and communicates with the fluid passageway (18e). 22), and the first and second normally-opened first and second inlets (18f, 18g) provided at both ends of the fluid passage (18e) of the internal moving body (18), respectively. Second solenoid valve (19, 21)
And the connecting pipe (2) protruding outside the metal pipe (12).
An injection nozzle (27) attached to the tip of 2) and configured to discharge the fluid (15) flowing into the fluid passage (18e) toward the fire prevention monitoring path (11); One of the two fluid supply means (13, 14) and the first solenoid valve (19) or the second solenoid valve (21) is opened to open the injection nozzle (10) at a predetermined position on the fire prevention monitoring path (11). Two
A fire extinguisher using a pressurized fluid, comprising: a fluid discharge controller (52a) that stops 7) and discharges the fluid (15) from the injection nozzle (27). 2. A fire extinguisher using a pressurized fluid according to claim 1, wherein the connecting pipe (22) is a flat pipe having a thickness slightly smaller than the cut (12b). 3. An internal moving body (18) along a metal pipe (12).
The external moving body (23) movable together with the metal pipe (12) is attached to a connecting pipe (22) protruding outside the metal pipe (12), and an injection nozzle (27) is attached to the external moving body (23). Or a fire extinguisher using the pressurized fluid according to 2. 4. A surveillance camera (28), and the surveillance camera (28)
Receiving antenna (31) for turning the camera and the surveillance camera
Transmit antenna for transmitting video signal from (28) (32)
The fire extinguisher using a pressurized fluid according to claim 3, wherein the fire extinguisher is mounted on an external moving body (23). 5. A receiving antenna (31) and a transmitting antenna (32).
The pressurized fluid according to claim 4, wherein a surveillance camera turning signal line (36) and a surveillance camera image transmission signal line (37) which are opposed to each other in a contact or non-contact manner are laid along the metal pipe (12). Fire extinguisher used. 6. An electromagnetic valve control signal line (38a, 38b) is laid along a metal pipe (12), and said electromagnetic valve control signal line (38) is provided.
a, 38b) in contact or non-contact with the signal transmitting / receiving members (33a, 33b) and the first and second solenoid valves (19, 21) by the signals of the signal transmitting / receiving members (33a, 33b). The fire extinguisher using a pressurized fluid according to claim 3, wherein the solenoid valve control circuit (29a, 29b) to be opened is provided on the external moving body (23). 7. A power supply line (34) along a metal pipe (12).
Is laid, and the pantograph slidably contacts the power supply line (34).
(44) is provided on the external moving body (23), and the pantograph (4
The pressurized fluid according to claim 4, wherein (4) is electrically connected to the first and second solenoid valves (19, 21), the turning device (28c) of the monitoring camera, and the turning device (27c) of the injection nozzle. Fire extinguisher.