JP3157211B2 - Fire extinguisher - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire extinguisher.

[0002]

2. Description of the Related Art In order to extinguish fires that occur in large spaces such as indoor exhibition halls, indoor stadiums, hangars, etc., monitor nozzles (water spray guns, Conventionally, a water cannon is installed on a wall or floor around a monitoring space.

[0003] In the event of a fire, if the fire point is far from the monitor nozzle installation point, the fire extinguishing agent is directed upward at a long range to discharge the fire extinguishing agent so that the fire extinguishing agent reaches that point. I have to.

[0004] However, when the monitor nozzle is turned to the angle at which the maximum range is reached, the extinguished fire extinguishing agent reaches the ceiling surface and collides with work equipment such as lighting equipment and a mobile crane provided on the ceiling surface. The equipment may be damaged, and in some cases, the equipment may fall and harm the people underneath.

In order to prevent such a situation, it is necessary to regulate the elevation angle of the monitor nozzle, and if the height to the ceiling surface is low and a sufficient elevation angle cannot be obtained,
A problem arises that the required range of the fire extinguisher cannot be obtained. In addition, since the height to the ceiling surface differs for each building, there is a disadvantage that the elevation angle must be determined for each building.

[0006] In addition, buildings having these large spaces are becoming larger year by year, and when a monitor nozzle is provided on a wall surface, the fire extinguishing agent must be sent farther away. It is necessary to increase the pressure, and it is necessary to increase the capacity of the pump and the piping, and to lengthen the barrel of the monitor nozzle, and there is a problem that the fire extinguisher becomes large. On the other hand, when the monitor nozzle is provided on the floor,
Due to the floor usage efficiency, the installation location is very limited,
There is a problem that it must be provided substantially at the corner.

[0007]

[0008]

[0009]

Means and action for solving the problems] that described above
In view, according to the present onset facie, it mounted above the stationary member from the ceiling surface, and is disposed suspended manner above the feed tube and the ceiling surface of extinguishing agent is supplied from the extinguishing agent supply When
Both have a turning mechanism for turning left, right, up and down, and a fire extinguishing agent discharge monitor nozzle that discharges the fire extinguishing agent supplied to the supply pipe, and the supply pipe and the monitor nozzle are relatively vertically movable. Connecting means for fluidly connecting;
Moving means for moving the monitor nozzle between a storage position above the ceiling surface and a projecting position below the ceiling surface, wherein the rotation at the projecting position below the monitor nozzle is provided .
The maximum vertical angle of elevation by the rotation mechanism is set to the horizontal direction.
A fire extinguishing device is provided. In this case, the moving means can move the monitor nozzle up and down or in a bending manner. Further, according to a preferred aspect, the supply pipe is fixed to a fixing member above a ceiling surface with a longitudinal axis being vertical, and the connecting means is provided near an end of the supply pipe with an outer diameter of the supply pipe. Is a hollow connection pipe having a large inside diameter, water-tightly and slidably engaged with the outer circumference of the supply pipe, and the other end of which is fixed to the monitor nozzle. It is a vertical type including a rack fixed to the outer periphery of the connection pipe and a gear engaged with the rack, so that at the time of fire extinguishing, the connection pipe is moved downward by the urging of the gear, and the monitor nozzle is moved. It is moved to the projecting position below the ceiling surface.

Thus, the monitor nozzle is suspended from the ceiling.
Above the surface, and set the maximum elevation angle to the horizontal direction.
Therefore, even if fire extinguishing agent is released from the monitor nozzle,
Lighting equipment and work equipment with fire extinguishing agent provided on the ceiling surface
It does not cause damage by colliding with equipment such as vessels. Ma
Since the monitor nozzle is installed above the ceiling,
There are few restrictions on the installation of the Nita nozzle and the degree of freedom is greatly increased
Become. In addition, the monitor nozzle is suspended above the ceiling surface.
It is placed on a wall, which makes it
There is no regulation of the turning direction by the wall surface, and a 360 degree turn is possible.
It is possible to cover a wide area with one monitor nozzle.
Can be generated in a large space with a small number of monitor nozzles.
Can deal with fires. Further, even when working equipment such as a mobile crane is provided on the ceiling surface, the monitor nozzle does not hinder use of the working equipment in normal times.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view showing a state in which a monitor nozzle 10 is suspended from a fixing member such as a beam 14 of a ceiling above a ceiling surface 12, and the monitor nozzle 10 is normally in a ceiling state as shown by a solid line. It is accommodated in the upper part of the surface 12, and when discharging water at the time of fire extinguishing, it falls from the opening 15 provided in the ceiling surface below the ceiling surface 12 as shown by a dotted line.

A supply pipe 16 to which a fire extinguishing agent such as water, foam, powder or the like is supplied at the time of fire extinguishing is fixed to the ceiling beam 14.
Further, a connection pipe 18 is fixed to the monitor nozzle 10. The connection pipe 18 of the monitor nozzle is slidably mounted on the outer periphery of the supply pipe 16 fixed to the beam 14 on the ceiling via an O-ring 20 in a watertight manner. A rack 22 is attached to the outside of the connection pipe 18, and a gear 24 attached to a lifting hydraulic motor (see FIG. 3) is engaged with the rack 22. The rotation of the gear 24 causes the connection pipe 18 of the monitor nozzle 10 attached to the rack 22 to be connected.
Is vertically movable by being guided by a lifting guide 26,
In this manner, the monitor nozzle 10 is suspended from the beam 14 on the ceiling such that the monitor nozzle 10 is lowered downward from the ceiling surface by the hydraulic motor for raising and lowering when the fire is extinguished.

The monitor nozzle 10 itself includes a main body 30 fixed to the connecting pipe 18 with bolts or the like, a turning part 34 partially fitted into the main body 30 and turned by a turning hydraulic motor 32. A water discharge nozzle 40 which can be raised about the elevating shaft support 38 by the hydraulic motor 36 for elevating, and a fitting degree into the water discharge nozzle 40 by the range switching hydraulic cylinder 42 which is fitted at the tip of the water discharging nozzle 40. Range switching outer cylinder 44 capable of switching the range of water discharge by adjusting
And The elevating hydraulic motor 36 and the range switching hydraulic cylinder 42 are provided as needed.

The case where the monitor nozzle suspended from the ceiling shown in FIG. 1 is used in a storage cabinet as shown in FIG. 2, for example, will be described. FIG. 2 is a plan sectional view of the hangar viewed from above, with the roof removed. The hangar is divided into three fire extinguisher compartments, and four suspension type monitor nozzles as shown in FIG. 1 are arranged in each fire extinguisher compartment.
Monitor nozzles G1 to G4 are arranged in the first fire extinguishing section Z1, and monitor nozzles G4 to G7 are arranged in the second fire extinguishing section Z2.
Is arranged, and monitor nozzles G7 to G10 are arranged in the third fire extinguishing section Z3.
Is shared by the fire extinguishing sections Z1 and Z2, and the monitor nozzle G7 is shared by the fire extinguishing sections Z2 and Z3.

In such a hangar, when it is determined that a fire has occurred in any of the fire extinguishing sections, the four monitor nozzles of the corresponding fire extinguishing section are lowered downward from the ceiling surface by the hydraulic motor for elevating. Fire fighting.
In the following, each monitor nozzle performs only a turning motion by the turning hydraulic motor 32 to perform water spray in a semicircular shape as shown in FIG. 2. The case where the switching control of the range by the cylinder 42 is not performed will be described. In each fire extinguishing section, if each monitor nozzle sprays in a semicircular shape as shown in FIG. 2, the entire area of the corresponding fire extinguishing section is covered.

In FIG. 3, a lifting hydraulic motor 50 for raising and lowering each of the monitor nozzles G1 to G10 and a turning hydraulic motor 32 for turning each turning section 34 are controlled by commands from a control panel (not shown). Hydraulic systems for bias control are shown. The hydraulic system includes, for each of the lifting hydraulic motor 50 and the turning hydraulic motor 32 of each of the monitor nozzles G1 to G10, an electromagnetic switching valve EV for biasing and controlling these motors.
, It is possible to reverse the hydraulic flow from the hydraulic pump OP to raise, lower, or turn the monitor nozzle in the opposite direction.

Hereinafter, the operation of the present embodiment will be described with reference to the flowcharts shown in FIGS. When a fire occurs, for example, a signal of a fire area or a signal from an emergency switch is input to a control panel from a fire receiver, and a control circuit (not shown) having, for example, a microcomputer of the control panel transmits, for example, a first fire extinguishing signal. It is assumed that the fire occurrence in the section Z1 has been determined.

When it is determined that a fire has occurred in the first fire extinguishing section Z1, the control circuit then controls the hydraulic system shown in FIG. Electromagnetic switching valve E of the lifting hydraulic motor 50 of G4
A forward rotation command is sent to V (step 102), whereby each of the monitor nozzles G1 to G10 has its own gear 2
As the connection pipe 18 rotates and the connecting pipe 18 descends, it falls from the storage position above the ceiling surface shown by the solid line in FIG. 1 to a predetermined position exposed below the ceiling surface and stops (step 10).
6-120).

When it is determined that all of the related monitor nozzles G1 to G4 have been lowered (step 12).
2) Next, a command to discharge a fire extinguishing agent such as water, foam, powder, or the like is transmitted from each of the monitor nozzles G1 to G4 (step 12).
4) Due to this, a fire extinguishing agent such as water, foam, powder, etc. to be discharged from the water storage tank (not shown) through the supply pipe 16 is sent thereto. The air is discharged from the outer cylinder 44 through the hollow portion of the nozzle 34 and the hollow portion of the water discharge nozzle portion 40.

Simultaneously with the fire extinguishing agent discharge command, the monitor nozzle G
A turning command is sent to the electromagnetic switching valves EV of the turning hydraulic motors 1 to G4 (step 126), whereby each turning hydraulic motor 32 rotates and the monitor nozzles G1 to G4 turn. . The turning mode of each turning hydraulic motor is arbitrarily selected according to the shape of the fire extinguishing section, the arrangement of the monitor nozzles, and the like, such as continuous 360-degree turning or continuous reciprocating turning within a predetermined angle range according to the shape of the fire extinguishing section. Here, as shown in FIG. 2, it is assumed that the vehicle turns over a semicircular range, that is, an angle range of 180 degrees. Accordingly, each monitor nozzle is inverted (step 134) each time it reaches the predetermined right limit angle (step 130) and left limit angle (step 132), and turns the first fire extinguishing while turning in the semicircular range. The fire extinguishing agent is discharged to the section Z1 to extinguish the fire.

When the fire extinguishing is completed (step 13
6), issue a discharge stop command to the monitor nozzles G1 to G4 (step 138),
When 4 reaches a predetermined stop position, a turning stop command is issued (step 140). When each of the monitor nozzles G1 to G4 has stopped at the predetermined stop position, a reverse rotation command of the lifting hydraulic motor is issued to the electromagnetic switching valve (step 142). Each connection pipe 18 is raised and each monitor nozzle 10 fixed to its tip is lifted up, and when it reaches a predetermined storage position above the ceiling surface, the reverse rotation of the lifting hydraulic motor is stopped (steps 144 to 144). 162), the entire series of operations ends.

In the above embodiment, for the sake of simplicity, only the case where the monitor nozzle 10 is turned has been described. However, when it is necessary to control the reach of the fire extinguishing agent during fire extinguishing work, the raising hydraulic pressure is used. It is needless to say that the elevation angle can be controlled by the motor 36 and the outer cylinder 44 can be moved in and out by the hydraulic cylinder 42 for switching range to adjust the range.

In the above embodiment, each monitor nozzle 1
In the case where 0 is continuously rotated 360 degrees or reciprocated continuously within a predetermined angle range and the fire extinguishing agent is discharged to the entire fire extinguishing section, the monitor nozzle 10 is not continuously rotated,
The extinguishing agent may be discharged only to the fire spot. In this case, after the monitor nozzle 10 is lowered by the hydraulic motor for lifting and lowering, the monitor nozzle 10 is directed to the fire spot by the hydraulic motor 32 for turning, and the hydraulic motor 36 for raising or the hydraulic cylinder 42 for switching the range is used to extinguish the fire extinguishing agent. Control is performed to adjust the reach distance.

Further, in the above embodiment, the monitor nozzle 1
Although 0 is a lifting type, it may be a bending type.
When the connection pipe 18 and the supply pipe 16 are to be bent, the connection pipe 18 and the supply pipe 16 are not slidable, but are fixedly connected by, for example, a flange or the like. The connecting pipe 18 or the supply pipe 16 is made freely bendable up and down by a rotary joint, a wire is connected to the monitor nozzle 10, and the wire is wound and fed by a hydraulic or electric motor to move the monitor nozzle 10 up and down. You can do so.

[0025]

Effect of the Invention] According to the present invention, since the hanging manner established monitor nozzle for extinguishing agent releasing Ri upwardly by a ceiling surface, it is possible to reduce restrictions on the installation of the monitor nozzle Also, when the monitor nozzle is swiveled left, right, up and down, the maximum elevation angle up and down is set to the horizontal direction, so that lighting equipment and work equipment etc. provided on the ceiling surface when the fire extinguishing agent is released from the monitor nozzle There is an effect that it is possible to avoid a problem of causing damage by colliding with devices.

According to the present invention, the monitor nozzle for extinguishing the fire extinguishing agent is moved between the storage position above the ceiling surface and the protruding position below the ceiling surface. Even when the work equipment is provided, there is an effect that the monitor nozzle does not hinder the use of the work equipment at normal times.

[Brief description of the drawings]

FIG. 1 is a side view of a state where a monitor nozzle is suspended from a ceiling.

FIG. 2 is a plan sectional view showing a hangar as a space to which the present invention can be applied.

FIG. 3 is a hydraulic system circuit diagram showing a hydraulic system for operating a monitor nozzle of FIG. 1;

FIG. 4 is a flowchart illustrating a program of a microcomputer provided in a control panel (not shown) for explaining the operation of the present invention.

FIG. 5 is a flowchart illustrating a program of a microcomputer provided in a control panel (not shown) for explaining the operation of the present invention.

FIG. 6 is a flowchart illustrating a program of a microcomputer provided in a control panel (not shown) for explaining the operation of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Monitor nozzle 12 Ceiling surface 14 Ceiling beam (fixing member) 15 Opening 16 Supply pipe 18 Connection pipe 20 O-ring 22 Rack 24 Gear 26 Elevation guide

──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-51-22299 (JP, A) JP-A 55-16144 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A62C 35/00-37/50 A62C 31/24

Claims (2)

(57) [Claims] 1. A mounted above the stationary member from the ceiling surface, a supply pipe extinguishing agent from fire-extinguishing agent supply source is supplied, while being suspended manner placed above said ceiling surface left
A monitor nozzle for extinguishing the fire extinguishing agent that discharges the fire extinguishing agent supplied to the supply pipe , which has a turning mechanism for turning right and left up and down, relative to the supply pipe and the monitor nozzle;
Connection means for fluidly connecting to the upper and lower movably,
Move the monitor nozzle from the storage position above the ceiling surface and from the ceiling surface.
Moving means for moving between projecting positions below the
The turning machine at a projecting position below the monitor nozzle
The feature is that the maximum elevation angle up and down by the structure is horizontal.
Fire extinguishing system to be. 2. The supply pipe according to claim 1, wherein the longitudinal axis is vertical.
The connection means is fixed to a fixing member above a ceiling surface, and
Near its one end is larger than the outside diameter of the supply tube.
With a large inner diameter, it is watertight and
Sliding engagement, the other end is fixed to the monitor nozzle
A hollow connection pipe, wherein the moving means is the hollow connection pipe;
Rack fixed to outer circumference of tube and teeth engaging with rack
Vehicles, which, when fire is extinguished,
Move the connection pipe downward to move the monitor nozzle
So as to move to the protruding position below the ceiling surface
The fire extinguisher according to claim 1 .