JPH0838645A - Fire extinguishing device - Google Patents

Abstract

PURPOSE:To cover a discharge nozzle with a cover with a simple mechanism without impairing its aesthetic appearance in a normal state and to expose this discharge nozzle outside in the event of detection of a fire so as to surely discharge water. CONSTITUTION:The discharge nozzle 152 rotates in a horizontally rotating direction when a nozzle swiveling motor runs. The cover 157 is mounted at an L-shaped piping 151b on the side opposite to the discharge nozzle 152. The cover 157 is so constituted as to be made flush with a front surface wall 100a of a main body unit 100 when the discharge nozzle 152 is housed in this main body unit 100 by facing a direction reverse from the front surface. The cover 157 turns together as well and the discharge nozzle 152 projects from the front surface wall 100a when the discharge nozzle 152 rotates in the horizontally rotating direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire extinguisher having a water discharge nozzle housed in a main body.

[0002]

2. Description of the Related Art Generally, when the water discharge distance is 100 m or more, the water discharge nozzle is also large, and the mechanism for driving the water discharge nozzle is also large, so that it is constructed separately from the fire detector. On the other hand, when the water discharge distance is about 20 m, since the water discharge nozzle and its driving mechanism are also small, the fire detector and the water discharge nozzle can be integrated and installed on a wall or the like.

[0003]

By the way, in a fire extinguishing device in which such a fire detector and a water discharge nozzle are integrated,
Since it can be miniaturized, it is often attached to an installation place where the appearance is taken into consideration, but there is a problem that the appearance is impaired if the water discharge nozzle is exposed to the outside in a normal state.

In order to solve the above problems, it is possible to cover the water discharge nozzle with a cover that can be opened and closed. However, since a mechanism for opening the cover is required in the water discharge state, the mechanism becomes complicated. If the opening / closing mechanism fails, water cannot be discharged in the event of a fire, thus causing a serious problem that the fire cannot be extinguished. In view of the above conventional problems, the present invention is a simple mechanism and can cover the water discharge nozzle with a cover in a normal state without spoiling the aesthetic appearance, and when the fire is detected, the water discharge nozzle is exposed to the outside to reliably discharge water. An object is to provide a fire extinguisher capable of operating.

[0005]

In order to achieve the above-mentioned object, the present invention is arranged so as to be horizontally rotatable with respect to a surveillance area and to project from a front wall of a main body in a state of facing the front. The water discharge nozzle is fixed to the opposite side of the water discharge nozzle and can rotate in the horizontal direction integrally with the water discharge nozzle so that the water discharge nozzle is flush with the front wall of the main body when housed inside the main body. And a cover disposed on the.

Further, the present invention is characterized in that a fire detector is provided integrally with the water discharge nozzle and the main body, and when the fire is detected, the turning of the water discharge nozzle is started.

[0007]

According to the present invention, the cover is rotatable in the horizontal direction integrally with the water discharge nozzle, and when the water discharge nozzle is housed in the main body, the cover is flush with the front wall of the main body. Therefore, since the cover can be opened and closed by using the swivel mechanism of the water discharge nozzle, the water discharge nozzle can be covered with the cover with a simple mechanism in a normal state, and when the fire is detected, the cover is exposed to the outside to ensure the reliability. Can be discharged.
Further, since the cover is flush with the front wall of the main body when the water discharge nozzle is housed in the main body, it is possible to prevent the appearance from being spoiled.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an external view showing a system configuration of an embodiment of a scanning fire detection / extinguishing apparatus according to the present invention. This system roughly includes a main unit 100 and a control panel 201.
And a central operation unit 202 installed in a center such as an administrator room
And a local operation unit 203 installed near the main unit 100. As shown in detail in FIG. 2, the main body unit 100 is arranged so that the two-dimensional scanning fire detector unit 101 and the water discharge unit 150 are coaxial with each other in the vertical direction, and each of the units 101 and 150 is independent in the horizontal direction. It is configured to be rotatable.

The detector unit 101 has a structure for detecting heat rays (infrared rays) from a flame, and the main unit 10
A swivel part described later is slightly projected forward from the front wall 100a of No. 0 so that the swivel part can be scanned in a range of about 190 ° in the horizontal direction. This will be described with reference to FIG. 3. The conical swivel portion 101a on the lower side of the detector unit main body 101.
Is, for example, 190 in the horizontal direction with respect to the main body unit 100 by the horizontal scanning motor 102 which is a pulse motor.
It can be reciprocally rotated stepwise in the range of °. Further, the rotating mirror 103 has a mirror surface on both front and back surfaces, and DC
A vertical scanning motor 104, which is a motor, rotates at a constant speed in a vertical direction from directly below to a horizontal plane at a distance.

The light from the monitoring area is regulated by the window 105 in the range of 90 ° in the vertical direction from directly below to the horizontal plane and is reflected by the rotating mirror 103, and this light is reflected by the objective lens 1.
The image is formed by 06, reflected by the reflection mirror 107, the instantaneous visual field 108a is determined by the slit 108, and then the infrared sensor 110 is formed by the condenser lens 109.
Is focused on the light receiving surface of. The instantaneous visual field 108a is
This is a monitoring field of view when the rotating mirror 103 is assumed to be stopped.

Returning to FIG. 2, a disk 111 is coaxially fixed to the lower side of the swivel portion 101a below the detector unit 101 so as to rotate integrally in a horizontal direction. The opening 112 is formed in the same direction as (the horizontal position where the rotary mirror 103 scans in the vertical direction).
Therefore, the opening 112 is always the same as the horizontal position of the rotating mirror 103. The water discharge unit 150 has a vertical pipe 151a fixed vertically to the main body unit 100 so that the opening end faces upward, and a water discharge nozzle 152 rotatably fixedly connected to the opening end of the vertical pipe 151a. Has an L-shaped pipe 151b whose side surface is L-shaped so as to face in the horizontal direction. The vertical pipe 151a is connected to a sprinkler pipe or the like via an electric valve 204 as shown in FIG.

A worm 153 is coaxially fixed around the vertical portion of the L-shaped pipe 151b, and the worm 153 meshes with a worm wheel 155 attached to the shaft of the nozzle turning motor 154. The nozzle swivel motor 154 is fixed to the main body unit 100. Therefore, when the nozzle swivel motor 154 rotates, the L-shaped pipe 151b and the water discharge nozzle 152 connected to the tip of the nozzle swivel motor 154 horizontally rotate.

Further, the photo interrupter 15 is provided at a position in the same direction as the water discharge nozzle 152 above the L-shaped pipe 151b.
6 is attached, and the outer peripheral portion of the disc 111 of the swivel portion 101a below the detector unit 101 passes between the light emitting element and the light receiving element of the photo interrupter 156, and the disc 11
The detection signal is obtained when the aperture 112 of No. 1 and the photo interrupter 156 match, that is, when the horizontal position where the rotary mirror 103 scans in the vertical direction and the direction of the water discharge nozzle 152 match. It should be noted that instead of the photo interrupter 156, detection means such as a limit switch may be used.

Further, a cover 157 is attached to the side of the L-shaped pipe 151b opposite to the water discharge nozzle 152. As shown in detail in FIG. 4A, the cover 157 is flush with the front wall 100a of the main body unit 100 when the water discharge nozzle 152 is housed in the main body unit 100 in the direction opposite to the front surface. Is configured to be. Then, as shown in detail in FIGS. 4B and 4C, when the water discharge nozzle 152 and the L-shaped pipe 151b rotate in the horizontal direction, the cover 157 also rotates, and the water discharge nozzle 152 and the L-shaped pipe 151b move in the front wall 100a. In the water discharge state protruding from the cover 157,
It is stored inside.

Next, the control system will be described with reference to FIG. A signal obtained by amplifying the detection voltage of the infrared sensor 110 by the amplifier 211, a detection signal of the photo interrupter 156, a water discharge signal from the water discharge operation unit 212, and a water discharge stop signal from the water discharge stop operation unit 213 are input to the control unit 200. Is configured to. The water discharge operation unit 212
The water discharge stop operating unit 213 is the central operating unit 202 shown in FIG.
And the local operation unit 203. The control unit 200 responds to these input signals via the drivers 214 to 217 as shown in FIG.
2, vertical scanning motor 104, nozzle rotation motor 154,
The electric valve 204 is controlled.

Next, the operation of the above embodiment will be described with reference to FIG. First, in the loop of steps S1 → S2 → S1, the horizontal scanning motor 102 is rotated stepwise and reciprocally to rotate the detector 101 in the horizontal direction, and the rotary mirror 103 is vertically moved so as to scan in the vertical direction. The scan motor 104 is rotated at a constant speed, and the detection signal of the infrared sensor 110 is monitored to determine whether or not there is a fire.
When a fire is determined from the detection signal in step S2, the process proceeds to step S3, at which point the horizontal scanning motor 102 is stopped.

In the subsequent step S4, a signal is sent to start the nozzle turning motor 154 to start turning the water discharge nozzle 152 from the initial state as shown in FIG. 4 (a). Then, the water discharge nozzle 152 covered by the cover 157 appears on the front surface of the main body unit 100. In the following step S5, it is determined whether or not the direction of the water discharge nozzle 152 is the same as that of the detector 101 based on the detection signal of the photo interrupter 156. When the water discharge nozzle 152 turns to the same direction, the turning is stopped (step S6). Therefore, the detector 101
In step S3, since the horizontal direction is stopped in the fire detection direction, the water discharge nozzle 152 is also stopped in the fire detection direction. Next, when the water discharge operation is performed in the water discharge operation unit 212, the electric valve 204 is opened to cause the water discharge nozzle 152 to discharge water (steps S7 → S).
8) Further, when the water discharge operation is performed in the water discharge stop operation unit 213, the electric valve 204 is closed to stop the water discharge (steps S9 → S10).

In this state, if the central operating unit 202 or the local operating unit 203 performs a restoring operation, the water discharge nozzle 152
Rotates, returns to the initial state, that is, the position of FIG. 4A, is covered with the cover 157, and is housed in the main body unit 100. The water discharge nozzle can be turned by manual operation of each operation unit. Also, the water discharge nozzle 1
When the 52 is turned, the detection unit of the photo interrupter 156 and the slit 112 of the disc 111 may become dusty.
If the detection signal of the photo interrupter 156 is not obtained even if the entire fire monitoring range from the turning start timing to the turning end timing is rotated, the turning is performed again or a fail-safe function is realized by issuing a warning of the water discharge nozzle abnormality. be able to.

[0019]

As described above, according to the present invention, the water discharge nozzle is arranged so as to be horizontally rotatable with respect to the monitoring area and project from the front wall of the main body in a state of facing the front, A cover that is fixed to the opposite side of the water discharge nozzle and can rotate in the horizontal direction integrally with the water discharge nozzle, and is arranged so as to be flush with the front wall of the main body when the water discharge nozzle is housed in the main body. Therefore, the water discharge nozzle can be covered with a simple mechanism in a normal state without impairing the aesthetic appearance, and when the fire is detected, the water discharge nozzle can be exposed to the outside to reliably discharge water.

[Brief description of drawings]

FIG. 1 is an external view showing a system configuration of an embodiment of a scanning fire detection / extinction device according to the present invention.

FIG. 2 is a side view showing the relationship between the scanning fire detection unit and the water discharge nozzle.

FIG. 3 is a configuration diagram showing a scanning fire detection unit.

FIG. 4 is an explanatory view showing a relationship between a water discharge nozzle and a cover.

FIG. 5 is a block diagram showing a control system of a scanning fire detection / extinction device.

FIG. 6 is a flowchart for explaining the operation of the scanning fire detection / extinguishing system.

[Explanation of symbols]

 100: Main unit 100a: Front wall 101: Detector unit (scanning type fire detector) 101a: Revolving part 102: Horizontal scanning motor 103: Rotating mirror 104: Vertical scanning motor 105: Window 106: Objective lens 107: Reflecting mirror 108 : Slit 108a: Instantaneous field of view 109: Condenser lens 110: Infrared sensor 111: Disc 112: Aperture 150: Water discharge unit 151: Vertical piping 152: Water discharge nozzle 153: Worm 154: Nozzle swivel motor 155: Worm wheel 156: Photo interrupter 157: Cover 201: Control panel 202: Central operation part 203: Local operation part 200: Control part 211: Amplifier 212: Water discharge operation part 213: Water discharge stop operation part 214-216: Motor driver 217: Driver

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hiroyuki Shibuya 2-1043 Kamiosaki, Shinagawa-ku, Tokyo Within Ho Chiki Co., Ltd.

Claims (2)

[Claims] 1. A water discharge nozzle which is rotatable in a horizontal direction with respect to a monitoring area and is arranged so as to project from a front wall of a main body in a state of facing the front, and fixed to the opposite side of the water discharge nozzle. A fire extinguisher having a cover which is rotatable with the water discharge nozzle in a horizontal direction and which is arranged so as to be flush with the front wall of the main body when the water discharge nozzle is housed in the main body. 2. The fire extinguisher according to claim 1, wherein a fire detector is provided integrally with the water discharge nozzle and the main body, and when the fire is detected, the turning of the water discharge nozzle is started. .