JP2018175971A - Fire extinction system and water gun device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a direction of a water discharge center line with respect to a protection section of a water gun to be accurately visualized and enable a direction of the water gun and a detection angle of a fire detection part to be adjusted so as to coincide horizontally.SOLUTION: A water gun device 10 includes: a fire detection part 34 detecting a fire by scanning a protection section two-dimensionally; and a water gun 30 having a water discharge direction fixed at a predetermined upward angle and supported so as to rotate horizontally. A control part drives the water gun to rotate so as to face a fire detection direction detected by the fire detection part and discharge water. The water gun device 10 includes a beam scan device 48 irradiating the protection section with laser beam light coinciding with a water discharge center line of the water gun in a horizontal direction and rotated or oscillated for scanning in a vertical direction. In a predetermined operation state, the beam scan device 48 is driven, the protection section is irradiated with a laser beam 72, and a bright line 122 corresponding to a projection image of the water discharge center line is displayed.SELECTED DRAWING: Figure 2

Description

  BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a fire extinguishing system and a water discharge gun apparatus which extinguish a fire by water discharge from a water discharge gun.

  Conventionally, for example, an apparatus shown in FIG. 14 is known as a water discharge apparatus for extinguishing water by extinguishing water with a relatively wide, high ceiling space such as a gymnasium as a protection section.

  As shown in FIG. 14, the water discharge gun device 200 has the device main body 202 embedded in a wall surface having a height of, for example, about 4 meters that can overlook the floor surface such as a gymnasium and exposed on the wall surface of the device main body 202 The fire detection unit 204 is provided at the top of the front panel, and the water gun 206 is provided below the fire detection unit 204.

  The fire detection unit 204 optically scans the detection optical axis from the infrared detection element with respect to the protection section in the vertical direction within the range of the detection window formed in the vertical direction of the detection unit main body, and the fire detection unit 204 in the horizontal direction. The rotating scan monitors fires in the protected area.

  In a steady state, the water gun 206 is located on the back side of the turning cover and housed in the device main body 202, and when the fire detection unit 204 detects infrared rays from the fire source 210 due to the fire in the protection section, , Identify the direction of the fire source 210, turn the water gun 206 forward and direct it toward the fire source 210, and start the water discharge shown by the water discharge pattern 208 when the predetermined automatic water discharge condition is determined in the automatic mode. Also, in the case of the manual mode, the water discharge is started when the water discharge start switch is operated.

  In this case, the swing control of the water discharge gun 206 is performed by stopping the fire detection unit 204, which has been horizontally scanned, at a horizontal position where the fire source 210 is detected and vertically scanning the water discharge gun 206 by the fire detection unit 204. The water discharge gun is controlled by setting the horizontal scanning angle at which the source 210 is detected as a target value and performing a feedback control so that the deviation from the rotation angle detected by the rotation angle detector (rotary encoder) provided at the water discharge gun 206 is zero. The direction 206 is directed to the detection direction of the fire source 210.

  By the way, in the normal monitoring state, the fire detection unit 204 performs step movement in the horizontal scanning range of, for example, 180 ° on the front side in steps of 1 °, for example, 90 ° perpendicular from 0 ° downward to horizontal in each step movement. The fire is monitored while scanning.

  For this reason, when installing the water discharge gun device 200, after the water discharge gun device 200 is installed on the wall surface of the protected area, the water discharge gun 206 is manually turned, for example, a front direction perpendicular to the water discharge gun 206 That is, the adjustment operation is performed to set the detection angle of the turning angle detector provided in the water discharge gun 206 in this state to 90 ° in such a state that the horizontal scanning angle by the fire detection unit 202 is 90 °.

Japanese Patent Application Laid-Open No. 08-038647 Japanese Patent Application Laid-Open No. 06-000299 Japanese Patent Application Laid-Open No. 06-031009 JP 10-258136 A JP 2002-291923 A

  However, in such a conventional operation of adjusting the swing detection angle of the water discharge gun, the worker stands at a front position away from the water discharge device 200 by the water discharge distance, and the water discharge gun is turned by manual operation. When the 206 turns to one's own sign, it is stopped and it is said that it turned to the front direction, the accuracy is bad because it is an artificial judgment, and the water gun 206 can not be correctly directed to the front direction, Since the detection angle of the turning angle detector provided to the water discharge gun 206 is set to 90 ° in this state, there is a problem that the error between the swing angle of the water discharge gun 206 and the detection angle of fire by the fire detection unit 204 becomes large. .

  The present invention provides a fire extinguishing system and a water discharge gun apparatus capable of matching the orientation of the water discharge gun in the horizontal direction with the detection angle of the fire detection unit so that the direction of the water discharge center line can be accurately viewed Intended to be provided.

(Fire extinguishing system)
The present invention
A water gun device supporting a water gun,
A control unit that drives a water discharge gun to discharge water;
In the fire extinguishing system equipped with
The water discharge gun device is provided with a beam scanning device which projects a beam light, which is horizontally aligned with the water discharge center line of the water discharge gun, and which performs rotational scanning or swing scanning in the vertical direction, to the protected area;
The control unit drives the beam scanning device in a predetermined operation state to project the beam light on the protection section, and displays a bright line corresponding to the water discharge center line.

In addition, fire extinguishing system
It has a fire detection unit that detects fires in protected areas,
The control unit directs the water discharge gun in the fire detection direction detected by the fire detection unit to discharge water.

(Beam light scanning during water discharge)
The control unit operates the beam scanning device in a state in which the water discharge gun is discharged in the fire detection direction detected by the fire detection unit, and projects the beam light onto the water film to be dispersed from the water discharge gun to the protection section by water discharge. Display a vertical plane passing through the line.

(Beam rotation scan by drive source)
The beam scanner
A device housing fixed to the lower side of the water discharge gun and having an opening window in the direction of a vertical plane passing through the water discharge center line of the water discharge gun;
An optical reflecting member disposed rotatably around a horizontal axis inside the device casing facing the opening window, and reflecting beam light incident from the horizontal direction by the reflecting surface in the vertical direction and exiting from the opening window;
A beam light source unit provided in the apparatus housing and configured to horizontally enter the beam light on the reflection surface of the optical reflection member;
A driving unit which is provided in the apparatus housing and rotationally drives the optical reflecting member at a predetermined speed to rotate and scan the beam light emitted from the opening window in the vertical direction;
Provide

(Manual beam rotation)
The beam scanner
A device housing fixed to the lower side of the water discharge gun and having an opening window in the direction of a vertical plane passing through the water discharge center line of the water discharge gun;
An optical reflecting member disposed rotatably around a horizontal axis inside the device casing facing the opening window, and reflecting beam light incident from the horizontal direction by the reflecting surface in the vertical direction and exiting from the opening window;
A beam light source unit provided in the apparatus housing and configured to horizontally enter the beam light on the reflection surface of the optical reflection member;
A beam operation unit configured to rotate an optical reflecting member by an operation of an adjustment operation unit provided outside the apparatus casing to rotate the beam light emitted from the opening window in the vertical direction;
Provide

(Flashing of beam light)
The beam scanning device projects the light beam while blinking it.

(Light and dark change of beam light)
The beam scanning device projects while changing the intensity of the beam light.

(Beam light projection before turning or before water discharge)
The control unit drives the beam scanning device to project the beam light to the protection zone when turning to the hot spot or before discharging water.

(Discharger device)
Another aspect of the present invention relates to a water discharge gun apparatus which supports a water discharge gun and can form a predetermined water discharge area in a protection zone.
A beam scanning device is provided that projects in parallel a horizontal line to the water discharge center line of the water discharge gun, and projects the light beam for rotational scanning or swing scan in the vertical direction onto the protection section and displays a bright line corresponding to the projection image of the water discharge center line. It is characterized by

  Here, other features of the beam scanning apparatus are the same as those of the beam scanning apparatus provided in the above-described fire extinguishing system.

(Basic effect)
In the present invention, a fire detection unit for detecting a fire in a protected area, a water discharge gun apparatus rotatably supporting a water discharge gun horizontally around, and a control for discharging water discharge gun in a fire detection direction detected by a fire detection unit In the fire extinguishing system provided with the part, the water discharge gun device is provided with a beam scanning device which projects a light beam, which is horizontally aligned with the water discharge center line of the water discharge gun and rotated in a vertical direction, onto the protection zone Since the control unit drives the beam scanning device in a predetermined operation state to project the beam light on the protection zone and display the bright line corresponding to the water discharge center line, the beam scanning device is applied to the floor surface or wall surface of the protection zone. The direction in the horizontal plane where the water gun is currently facing can be accurately known visually by the bright line by rotational scan or swing scan of the projected beam light.

(Effects of beam light scanning during water release)
The control unit operates the beam scanning device in a state in which the water discharge gun is discharged in the fire detection direction detected by the fire detection unit, and projects the beam light onto the water curtain sprayed from the water discharge gun to the protection section by water discharge. Since the vertical plane passing through the line is displayed, the water curtain falling on the protection section by water discharge from the water gun strikes the beam light and the curtain becomes bright like a curtain, for example, while it is dark even at night or daytime In the case of water discharge, the lighting of the light curtain makes it possible to grasp the state of water discharge with certainty, and to make it possible to increase the reliability of water discharge by the water gun by seeing this.

  In addition, when the supervisor manually discharges the water gun toward the direction of the fire source, the beam scanning device is operated to display the bright line from the vertical rotation scan of the beam light on the protection section, and thus the bright line is the fire source. By turning and stopping so as to fit, the water discharge gun can be accurately and easily directed to the fire source, and when water discharge is started by the water discharge operation, the water discharge source can be reliably discharged.

(Effect of beam rotation scan by drive source)
The beam scanning device was fixed to the lower side of the water discharge gun, and was opposed to the cylindrical device housing having an opening window in the direction of the vertical plane passing through the water discharge center line of the water discharge gun, and the opening window of the device housing An optical reflection member is disposed inside the apparatus casing, and is provided inside an apparatus casing, which is disposed rotatably around a horizontal axis inside and reflects beam light incident from the horizontal direction by the reflection surface in the vertical direction and exits from the aperture window. A beam light source unit for receiving beam light in a horizontal direction on a reflection surface, and a drive unit provided in the apparatus housing for rotationally driving the optical reflection member at a predetermined speed and rotating and scanning the beam light emitted from the opening window As a result, by realizing the beam scanning device as a compact cylindrical device, the beam scanning device can be properly installed in the space under the water discharge gun, and the change of the water discharge gun device side is hardly required. ,beam It makes it possible to take advantage provided 査 device.

  When a laser light source is used for the beam light source by rotating and scanning the beam light in the vertical direction by rotation of an optical reflecting member such as a mirror member by the driving unit, the laser output exceeds 1 mW, for example. Even when the level is affected, when the laser spot is driven to rotate at, for example, 30 rpm, which enables human recognition of the movement of the laser spot, the laser light is not fixed irradiation but moving irradiation, so the person receives direct rays of laser light. The energy of the laser light is greatly reduced, for example, even if the laser light source whose output is more than 200 mW, for example, where the emission line can be seen when traveling in the air, the emission line can be displayed in the protected area without causing harm to human beings Application to water guns with water discharge distances exceeding 100 meters is also possible.

(Effect of beam rotation by manual operation)
The beam scanning device is mounted and fixed on the lower side of the water gun, and the apparatus housing forms an opening window in the direction of the vertical plane passing through the water discharge center line of the water gun, and horizontally inside the apparatus housing facing the opening window An optical reflecting member which is disposed rotatably about an axis and which reflects beam light incident from the horizontal direction by the reflecting surface in the vertical direction and emits the light from the aperture window, and is provided in the apparatus housing, on the reflecting surface of the optical reflecting member Beam operation that rotates the optical reflection member and rotates the beam light emitted from the aperture window vertically by the operation of the beam light source unit that receives the beam light from the horizontal direction and the adjustment operation unit provided outside the device housing Because it does not require a drive source such as a motor, the configuration is simple and low cost, and a bright spot for use in checking when the water gun is correctly directed in the front direction is used as a protection zone By displaying the water Fire detection unit the turning angle detected is to allow adjustment operation be set to match the fire detection angle when facing forward.

(The effect of blinking the beam light)
In addition, the beam scanning device makes it possible to display a bright line which is a broken line or a moving broken line on the floor surface or wall surface of the protection section by projecting the beam light while blinking.

(Effect of light and dark change of beam light)
In addition, the beam scanning device can change the brightness of the bright line displayed on the floor surface or the wall surface of the protected section as necessary by projecting while changing the intensity of the beam light.

(Effect by two-color beam light)
In addition, the beam scanning device makes the color of the beam light at the time of water discharge different from the color of the beam light at the time other than the water discharge, for example, it projects red beam light at the time of water discharge to prompt attention. In this case, the green light beam is projected to be distinguishable from the water discharge time.

(Effect by beam light projection during turning or before water discharge)
In addition, since the control unit drives the beam scanning device to project the beam light on the protection section when turning to the hot spot or before discharging water, it warns general facility users of the discharge of water and warns them. Make it possible.

(Effect by water gun device)
The effect of the water discharge gun device is the same as the case where the water discharge gun device of the fire extinguishing system described above is provided with the beam scanning device.

Explanatory drawing which showed the outline of the fire extinguishing system which provided the water discharge gun Explanatory drawing showing the discharge area of the discharge gun and the bright line display by the beam scanning device Explanatory drawing which took out the water discharge gun device and showed it from the front Side view of the water gun taken out and shown from the side Explanatory drawing showing a state in which the water gun was turned toward the protective section Explanatory drawing which took out the water discharge gun and showed from the side Sectional view showing the internal structure of the water discharge gun Explanatory drawing which took out the water discharge gun and showed it from the front Explanatory drawing which took out and showed the beam scanning device Block diagram showing the functional configuration of the beam scanning device Explanatory drawing which showed the attachment structure of the beam scanning device to a water discharge gun A block diagram schematically showing the functional configuration of the fire extinguishing system of FIG. 1 Explanatory drawing which showed other embodiment of the beam scanning device which scans beam light by dial operation. Explanatory drawing which showed water discharge by the conventional water discharge apparatus installed in the protection section

(Outline of fire extinguishing system)
FIG. 1 is an explanatory view showing an outline of a fire extinguishing system provided with a water discharge gun. As shown in FIG. 1, the fire extinguishing system includes a water discharge gun device 10, a local control panel 12, a unit control panel 14, a master control panel 16, a self-fire report receiver 18, a fire detector 20, a pump control panel 22, a fire extinguishing pump The equipment 24, the water supply pipe 26, and the simultaneous release valve 28 using a motor-operated valve are used, and the case where two water gun apparatus 10 are installed in the protection section is taken as an example.

  The operation of the fire extinguishing system is as follows. The water gun apparatus 10 two-dimensionally scans the protected area by scanning the fire detection unit and monitors the fire, and when detecting infrared rays from the flame of the fire source, the monitoring scan is stopped at that position to indicate the fire source direction A fire detection signal including data is transmitted to the unit control board 14. The unit control board 14 swings and scans the water discharge gun of the water discharge gun device 10 in the direction of the fire source based on the fire detection signal, and completes the water discharge preparation.

  Subsequently, the unit control panel 14 performs water discharge control, and this water discharge control includes an automatic water discharge mode, a semi-automatic water discharge mode, and a manual water discharge mode.

  When the automatic water discharge mode is set on the master control panel 16 or the local control panel 12, the unit control panel 14 is installed in the protected area in addition to the fire detection signal from the fire detection unit of the water discharge gun device 10 It is judged that the automatic water discharge condition is established when the fire transfer notification signal is received from the self-fire report receiver 18 that has received the notification of the fire detector 20, and after the countdown for a predetermined time, the pump control signal to the pump control panel 22 The fire extinguishing pump of the fire extinguishing pump facility 24 is activated, the opening control signal is sent to the simultaneous release valve 28 to perform opening control, and water discharging from the water discharging gun of the water discharging gun device 10 is started.

  When the water discharge is started, a timer having a predetermined water discharge time set in the unit control panel 14 is started, and when the time is up, the simultaneous open valve 28 is closed and the water discharge is stopped. Subsequently, the unit control panel 14 resumes the fire monitoring scanning by the fire detection unit of the water discharge gun device 10, and if a fire detection is performed, the fire is detected again as it is the case that the fire reappears after water discharge. Re-control the water gun to resume water discharge. If the fire monitoring scan is started but there is no fire detection, the unit control board 14 enters normal condition monitoring.

  In addition, since the automatic water discharge mode is usually performed in an unmanned state, the administrator who received a fire notification visits the site to judge the situation on the site and confirm the suppression, the fire extinguishing pump equipment is operated manually. Perform recovery such as 24 stoppages.

  When the semi-automatic water discharge mode is set by the master control panel 16 or the on-site operation panel 12, the unit control panel 14 turns and scans the water discharge gun of the water discharge gun device 10 in the direction of the fire source based on the fire detection signal. After completion of the above, in response to the water discharge operation signal of the local control panel 12 or the master control panel 16, water discharge from the water discharge gun is started.

  The water discharge operation by the on-site operation panel 12 or the master control panel 16 is a water discharge operation in which a supervisor inserts a key into a manual water discharge switch provided on the operation panel and operates the water discharge position. The unit control board 14 having received the manual water discharge signal by the manual water discharge operation sends a pump start signal to the pump control board 22 to start the fire extinguishing pump of the fire extinguishing pump facility 24 and sends an open control signal to the simultaneous open valve 28. Open control and start water discharge from the water discharge gun of the water discharge gun device 10. When the guard confirms that the fire has been extinguished, the manual water discharge switch of the local control panel 12 or the master control panel 16 is operated to the water discharge stop position, and the unit control panel 14 closes the simultaneous open valve 28 to stop water discharge. In addition, recovery such as stopping of the fire extinguishing pump equipment 24 is manually performed.

  When the manual water discharge mode is set on the master control panel 16 or the on-site operation panel 12, the surveillance officer who has confirmed the fire turns the water discharge gun of the water discharge apparatus 10 by operating the on-site operation panel 12, for example. To the fire source, insert a key into the manual water discharge switch and operate it to the water discharge position, and in response to the water discharge operation signal, the unit control board 14 sends a pump start signal to the pump control board 22 to extinguish the fire extinguishing pump facility 24 The pump is started, and an opening control signal is sent to the simultaneous release valve 28 to perform opening control, and water discharge from the water discharge gun of the water discharge gun device 10 is started. When the guard confirms that the fire has been extinguished, the manual water discharge switch of the local operation panel 12 is operated to the water discharge stop position, and in response to this, the unit control panel 14 closes the simultaneous release valve 28 to stop water discharge. In addition, recovery such as stopping of the fire extinguishing pump equipment 24 is manually performed.

[Discharge area and beam scanning of the discharge device]
(Water discharge pattern of water discharge gun)
FIG. 2 is an explanatory view showing a water discharge area of a water discharge gun and bright line display by a beam scanning device. As shown in FIG. 2, the water discharge gun device 10 is installed at a predetermined height of a wall surface in a protected area such as a gymnasium etc., and a fire of the protected area is monitored by two-dimensional scanning of the fire detection unit 34. When a fire is detected by the fire detection unit 34, the water discharge gun 30 is controlled to swing toward the fire source to discharge water, and as shown in the water discharge pattern 120, the prescribed amount of water per unit time within a range of a predetermined width to a predetermined water discharge distance. Water discharge will be.

(Outline of beam scanning device)
In the present embodiment, the beam scanning device 48 is provided under the water discharge gun 30. The beam scanning device 48 horizontally coincides with the water discharge center line of the water discharge gun 30, projects the beam light of the laser rotating or swingingly scanning in the vertical direction onto the protection section, and corresponds to the projection image of the water discharge center line. The bright line 122 is displayed on the floor or wall of the protected area, which makes it possible to accurately know the direction in which the water gun 30 currently faces.

  Since the light beam projected from the beam scanning device 48 is blocked by the aperture window and the water gun 30, the display of the bright line 122 to the protective section is actually performed even when the beam light is rotated about the vertical axis. The bright line 122 is displayed as a scan including at least a portion to be the outer edge of the water discharge area S which is the maximum water discharge distance from the point P immediately below.

(Beam scanning when water is stopped)
The display of the bright line 122 by the beam scanning of the beam scanning device 48 marks an appropriate mark on a point Q separated by the maximum discharge distance which is the front of the water discharge device 10, for example, when the water discharge device 10 is installed. The water gun 30 is manually rotated and positioned so that the bright line 122 by the rotational scanning of the light beam passes, thereby enabling the water gun 30 to be directed accurately in the front direction.

  By performing the adjustment operation to set the turning detection angle of the turning angle detector (rotary encoder) provided in the water discharge gun 30 in this state to coincide with the fire detection angle when the fire detection unit faces the front, An error in the detection angle of the fire detection unit 34 and the water discharge gun 30 around the horizontal is reduced or eliminated, and the water discharge gun 30 is accurately controlled to turn in the direction of the fire detection angle detected by the fire detection unit 34 It is possible to discharge fire extinguishing water and to extinguish the fire surely.

  Also, as another usage of the beam scanning device 48, the beam scanning device 48 is operated while turning the water gun 30 by manual operation to display the bright line 122 by the vertical rotational scanning of the beam light on the protected section, thereby discharging the water. The display corresponding to the water discharge simulation by the gun 30 becomes possible, and it is possible to grasp the state of the water discharge by the water discharge gun 30 as a feeling even without actually discharging water.

  Furthermore, in the manual water discharge control when the manual water discharge mode is set, when the monitor directs the water gun 30 to the direction of the fire source, the beam scanning device 48 is operated to emit the bright line 122 by the vertical rotation scan of the beam light. By displaying on the protected area, by turning and stopping the bright line 122 to match the fire source, the water gun 30 can be accurately and easily directed to the fire source accurately, and water discharge operation is started by water discharge operation. If you do, be sure to be able to discharge the fire source.

(Beam light scanning during water discharge)
Also, as a usage of the beam scanning device 48, when the water discharge gun 30 is turned in the fire detection direction detected by the fire detection unit 34 and the water is discharged, the beam scanning device 48 is operated to discharge the water from the water discharge gun 30 The beam light is projected on the water discharge pattern 120 to be dispersed, and the water curtain falling on the protection section by the water discharge from the water gun 30 strikes the beam light, and the curtain becomes bright like a curtain, for example dark at night or daytime In the case of discharging water in the inside, the lighting serving as a curtain of light makes it possible to grasp the state of water discharge with certainty and make it possible to enhance the reliability of water discharge by the water discharge gun 30 by observing this.

[Summary of water gun device]
Fig. 3 is an explanatory view showing the water gun apparatus taken out and shown from the front, Fig. 4 is an explanatory drawing taken out the water gun apparatus and shown from the side, and Fig. 5 shows a state where the water gun is turned toward the protective section FIG.

  As shown in FIGS. 3 and 4, the water discharge gun device 10 has a front panel 32 mounted on the front of a box-shaped device body 31, and a fire detection unit 34 is provided on the top of the front panel 32. There is a water gun cover 36 with a built-in water gun.

  The fire detection unit 34 arranges the conical swing scan unit 38 so as to be able to turn about the horizontal direction under the semi-cylindrical overhang, and the swing scan unit 38 is provided with the detection window 40 in the vertical direction. ing. Inside the fire detection unit 34, a scanning optical system provided with an infrared sensor and a rotating mirror for scanning a detection optical axis with respect to a protection section of the infrared sensor in the vertical direction is incorporated.

  For this reason, the fire detection unit 34 detects the detection optical axis from the infrared detection element with respect to the protection zone in the range of the detection window 40 formed in the vertical direction of the orbiting scanning unit 38, for example In the range, the optical scanning in the vertical direction is repeated repeatedly, and the rotational scanning that reciprocates the rotational scanning unit 38 in the horizontal direction, for example, in the range of 180 ° is repeated to detect the fire of the protective compartment.

  The water gun cover 36 stores the water gun on the back side in the normal state, and when the fire detection unit 34 detects a fire, as shown in FIG. 5, the water gun 30 is taken out by turning by motor drive, The water gun 30 is directed to the direction of the fire source detected by the detection unit 34 to discharge water.

[Configuration of water discharge gun]
FIG. 6 is an explanatory view showing the water discharge gun taken out and shown from the side, FIG. 7 is a sectional view showing the water discharge gun taken out and showing the internal structure, FIG. 8 is an explanatory drawing showing the water discharge gun taken out from the front.

  As shown in FIG. 6 to FIG. 8, the water discharge gun 30 is rotatably supported by inserting the water supply pipe 41 into the rotary joint of the water supply main disposed on the base side (fixed side) (not shown), As shown in FIG. 7, the upper portion of the water supply pipe 41 is bent obliquely upward, and the water discharge nozzle 42 is fixed to the tip. For this reason, the water discharge nozzle 42 is rotatably supported horizontally around the fixedly installed base side via the water pipe 41, and the direction of the water discharge center line 35 is fixed at a predetermined upward angle, for example, about 10 °. ing.

  A motor connecting portion 46 is provided on the upper portion of the vertical portion of the water supply pipe 41, and a drive shaft of a motor disposed on the upper portion is connected to the motor connecting portion 46 so that the water gun 30 can be pivoted within a horizontal pivot range of 180 °. Further, a fixed case 43 formed in a box shape is fixed to the rising portion of the water supply pipe 41, and a box-shaped movable case 45 opened forward and backward is disposed in front of the fixed case 43.

  A deflector 44 is supported and fixed at the front opening of the movable case 45. The deflector 44 is located in front of the water discharge nozzle 42 and waters in response to the collision of jets from the water discharge nozzle 42, and the water discharge is minimized by, for example, the water discharge distribution area having an effective water discharge distance of 16 meters or 18 meters. Allow watering.

[Beam scanner]
(Configuration of beam scanning device)
FIG. 9 is an explanatory view showing the beam scanning device taken out, FIG. 9 (A) shows a front, FIG. 9 (B) shows a side, and FIG. 9 (C) shows a lateral cross section. As shown in FIG. 9, the beam scanning device 48 is a vertical window covering an opening window 52 sealed by a transparent cover 65 at the center of the cylindrical device housing 50 over a range of about 180 ° centered on the obliquely downward direction. It is formed in the direction. A slide rail 74 opened in an inverted triangle is fixed to the upper portion of the device housing 50 by a screw 75.

  The beam light source unit 54 housed in the case 55 is disposed on the right side inside the apparatus casing 50. The beam light source unit 54 includes a laser emitting unit 56, a diffusion unit 58, and a collimating lens 60. The laser light emitting unit 56 is a light source using a laser diode that emits red laser light or green laser light. A green laser beam is desirable to increase the visibility of the bright lines that scan the light beam in the protected area to be displayed, and a red laser beam is desirable in terms of cost.

  In addition, a laser diode for emitting a red laser beam and a laser diode for emitting a green laser beam may be disposed in the laser emitting unit 56, and the red and green laser beams may be switched and emitted as necessary. .

  In this way, when it is possible to emit two-color laser light, for example, a red laser light is projected to prompt attention when water is discharged, while a green laser light is projected when water is discharged or less. It is distinguishable from the time of water discharge.

  The diffusion unit 58 has a function of diffusing the laser light emitted from the laser light emitting unit 56 and spreading it into a light flux having a predetermined spot size. As the diffusion portion 58, for example, a surface relief type hologram element is used. The collimating lens 60 emits the diffused light emitted from the diffusing unit 58 as parallel beam light.

  Here, as the output of the laser light emitting unit 56, it is desirable to set the output as low as 1 mW or less in order to secure the safety for people, and the water discharge distance is 16 meters or 18 meters as in the above-described water gun apparatus 10. In the case of a small-scale water discharge gun such as this, even with this degree of output, the bright line by the scanning of the light beam is clearly visible.

  On the other hand, in the case of a medium scale water discharge gun with a water discharge distance of 70 meters, and a large water discharge gun with a water discharge distance of over 100 meters, high power of over 100 mW to enable clear visibility of the bright lines by the beam light scanning. You need to Moreover, even if it is a small-scale water discharge gun, in order to enable a bright line to be able to be displayed clearly, it is also possible to set it as high output over 100 mW.

  The optical reflecting member 64 is disposed rotatably around the horizontal axis inside the device housing 50 facing the opening window 52, and beam light incident from the horizontal direction by the beam light source unit 54 is formed at an angle of 45 ° The light is reflected in the vertical direction by the reflecting surface and emitted from the opening window 52. The optical reflecting member 64 is provided with a reflecting mirror on the surface by processing the right side of the cylindrical member at an angle of 45 °. The opening window 52 is formed, for example, in a range of about 180 ° centering obliquely downward, and a ring-shaped transparent cover 65 is attached and sealed inside.

  The optical reflecting member 64 is fixed to the rotation shaft of the motor 62 housed and disposed on the left side of the case 61 and is rotationally driven vertically, thereby reflecting the beam light of the laser incident from the beam light source 54 and pivoting vertically. The light beam 72 is projected from the aperture window 52 to the outside.

  Here, the number of revolutions of the optical reflecting member 64 by the motor 62, that is, the number of revolutions of the light beam 72 in the vertical direction is set to a constant number of revolutions of 30 rpm or more. As described above, by setting the rotation number of the light beam 72 to 30 rpm, it is possible to make the beam spot moving in the guard scan visible as one bright line 122 as shown in FIG. That is, the optical reflecting member 64 is rotationally scanned by the motor 62 so that the bright spot by the projection of the light beam 72 passes 30 times or more in one second.

  In addition, by scanning the light beam at a rotational speed of 30 rpm or more, even if a person directly looks at the laser beam, for example, the laser beam is not fixed irradiation like the laser pointer but moving irradiation, so in fact The energy of the laser beam received by the person is greatly reduced, and even if the laser beam with an output of more than 200mW can be seen when the emission line is visible when it travels through the air, the emission line does not harm the person. Make it safe to display.

  A circuit board 66 is accommodated on the left side of the motor 62, and a drive circuit of the laser light emitting unit 56 and a drive circuit of the motor 62 are mounted on the circuit board 66. External control by signal line connection to the connector 68 In response to the signal, the beam scanning device 48 is operated.

  FIG. 10 is a block diagram showing a functional configuration of the beam scanning apparatus, wherein a light emission drive unit 88 is provided for the beam light source unit 54, and a swing drive unit having a motor for the swing scanning unit 92 provided with a reflective optical member. A control unit 86 enables the light emission drive unit 88 and the swing drive unit 90 to operate based on control signals from the outside.

(Mounting structure and position adjustment mechanism of beam scanning device)
FIG. 11 is an explanatory view showing the attachment structure of the beam scanning device to the water discharge gun, and FIG. 11 (A) is a front, FIG. 11 (B) is a cross section taken along line X-X of FIG. Indicates the side.

  As shown in FIG. 11, the beam scanning device 48 is attached and fixed to the lower side of the water discharge gun 30 via the fixed frame member 76. The fixed frame member 76 is formed with a slide groove 76c having an inverted triangular cross section opened downward in the horizontal portion 76b connecting the mounting portions 76a on both sides, and the mounting portion 76a is fitted into the water gun 30 from the lower side. It fixes with screw 77.

  Insert the slide rail 74 fixed to the top of the device case 50 from the right into the slide groove 76c of the fixed frame seat 76 fixed to the water discharge gun 30, and fix the plate member 78 to the right with the screw 79. Stop it. Here, the width of the slide rail 74 fixed to the apparatus housing 50 is shortened by a predetermined length ΔL with respect to the width of the slide groove 76c, and the center of the opening window 52 through which the beam passes is the water discharge center line of the water gun 30. In the case of matching 35, a gap for position adjustment of ΔL / 2 is formed on both sides.

  The adjustment screw 82 is screwed into the mounting portion 76a positioned on the left side of the fixed mounting member 76 and the screw hole 80 of the plate member 78 fixed to the right, and one of the left and right adjustment screws 82 is loosened and the other is screwed Thus, the device case 50 can be moved and adjusted in the lateral direction.

  Even if there is mounting error in the direction of the radiation center line of the water discharge gun 30 and the beam projection direction from the beam scanning device 48 fixedly fixed thereto by such position adjustment mechanism of the beam scanning device 48, By adjusting the position on the device housing 50 side relative to the fixed side, the directions in the horizontal plane of both are made to coincide exactly, and the bright line is correctly displayed on the protection section corresponding to the water discharge center line of the water discharge gun 30 To be possible.

[Functional configuration of fire extinguishing system]
FIG. 12 is a block diagram schematically showing a functional configuration of the fire extinguishing system of FIG. 1, and shows one system of FIG. As shown in FIG. 12, the water discharge gun device 10 is provided with a fire detection unit 34, a water discharge gun drive motor 94, a water discharge gun rotation detector (rotary encoder) 96, and a beam scanning device 48.

  The fire detection unit 34 is provided with an infrared sensor 98, a horizontal scanning motor 100 and a vertical scanning motor 102, and the detection scanning line from the infrared sensor 98 for the protected section is stepwise rotated by, for example, 1 ° by the horizontal scanning motor 100. The fire in the protected area is monitored by scanning in the vertical direction by mirror rotation by the vertical scanning motor 102 at the step rotation error rate.

  The local control panel 12 and the master control panel 16 have the functions of the water discharge operation units 106 and 110 and the water discharge stop operation units 108 and 112, and select and set an automatic water discharge mode, a semi-automatic water discharge mode or a manual water discharge mode and a semi-automatic water discharge mode or In the manual water discharge mode, the water discharge operation and the water discharge stop operation are performed according to each mode. In addition, the local control panel 12 and the master control panel 16 perform control to shift the operation right to either one, and make the operation on the side having the operation right effective.

  The unit control panel 14 includes a control unit 104. The control unit 104 controls the discharge gun of the water discharge gun device 10 according to the automatic water discharge mode, the semi-automatic water discharge mode or the manual water discharge mode to a fire source. Perform opening control to the simultaneous release valve 28 to perform control to start water discharge from the water gun, and perform automatic water stop control in the automatic water discharge mode, and stop the guard who confirmed the fire suppression in the semi-automatic water discharge mode and the manual water discharge mode Water stop control based on the operation is performed.

  Furthermore, the control unit 104 of the unit control panel 14 controls the beam scanning device 48 provided in the water discharge gun device 10 based on the operation of the on-site operation panel 12 and the master control panel 16 or in the water stop state or the water discharge. Control for operating the beam scanning device 48 is performed during the operation.

[Beam scanner that rotates beam by manual operation]
FIG. 13 is an explanatory view showing another embodiment of the beam scanning device for rotating the beam light by the dial operation, and FIG. 13 (A) is a front view, FIG. 13 (B) is a cross section in the lateral direction, C) shows the side.

  As shown in FIG. 13, the beam scanning device 48 is provided with the rotation shaft 116 of the optical reflecting member 64 instead of the motor 62 provided in the embodiment of FIG. A dial 114 is provided, and an arrow 118 indicating the projection direction of the beam light 72 is displayed on the outside of the dial 114, and the light beam 72 projected from the opening window 52 can be rotated vertically around the dial 114. There is.

  Since the other configuration is the same as that of the embodiment of FIG. 9, the same reference numerals are given and the description is omitted.

  As described above, the beam scanning device 48 rotates the optical reflecting member 64 by the operation of the dial 114 functioning as an adjustment operation unit provided outside the device casing 50, and vertically rotates the beam light 72 emitted from the opening window 52. The configuration is simple and low cost because it does not require a drive source such as a motor, and the bright spots of the beam light hit a mark provided in the protective section indicating the front direction of the water gun 30. The rotation operation enables adjustment operation to set the turning detection angle of the water discharge gun 30 to the fire detection angle when the fire detection unit 34 faces the front.

  In the present embodiment, since the light beam is not rotated at a constant speed like motor driving, there is a possibility that a person directly looks at the laser light beam. It is desirable that the output be as low as 1 mW or less. When the output of the laser light emitting unit 56 is high, it is necessary to perform the dial operation while paying sufficient attention not to project toward a person.

[Modification of the present invention]
(Flashing of beam light)
As another embodiment of the present invention, it is possible to display a bright line which is a broken line or a moving broken line on a floor surface or a wall surface of a protected section by blinking or projecting beam light from a beam scanning device .

(Light and dark change of beam light)
In addition, as another embodiment of the present invention, by projecting while changing the intensity of the beam light from the beam scanning device, the brightness of the bright line displayed on the floor surface or wall surface of the protected section is changed as necessary. Make it possible to

(Beam light projection before turning or before water discharge)
Further, as another embodiment of the present invention, the control unit drives the beam scanning device to cause the beam light to be projected to the protection section when turning to the hot point or before discharging water, so that a general facility user can It is possible to give notice of water discharge and call attention.

(Discharge gun)
Although the above-mentioned embodiment takes the example of the water discharger apparatus which integrated the fire detection part and the water discharge gun as an example, the water discharge gun apparatus which separates and installs a fire detection part and the water discharge gun similarly The beam scanning device may be attached to the lower side of the water discharge gun so that the beam light can be swung in a vertical plane passing through the water discharge center line.

(Beam swing scan)
Although the beam scanning device of the above embodiment rotationally scans the beam light in the vertical direction, it may also swing and scan the beam light within a predetermined angle range that is obliquely downward. As a mechanism for oscillating and scanning the beam light, a drive mechanism using a galvano mirror or the like is used.

(Beam scanner for existing installation)
Although the beam scanning device of the above-mentioned embodiment exemplifies the case where the beam scanning device is attached at the manufacturing stage of the water discharge gun device, it may be a beam scanning device which can be retrofitted to the existing water discharge gun device. In this case, in addition to the beam scanning device of the above embodiment, a control unit provided with a battery power supply and a wireless transmission / reception unit is prepared, and cable connection is made to the connector of the beam scanning device. A control signal is transmitted from the operating device to operate the control unit, and the power supply from the control unit and the output of the control signal operate the beam scanning device.

  Moreover, in order to simplify the beam scanning device with respect to the existing water discharge gun apparatus, it is desirable to use the attachment fixing frame of magnet adsorption.

(Others)
Further, the present invention includes appropriate modifications that do not impair the objects and advantages thereof, and is not limited by the numerical values shown in the above-described embodiment.

10: Discharge gun device 12: Local control panel 14: Unit control panel 16: Master control panel 18: Self-fire report receiver 20: Fire detector 22: Pump control panel 24: Fire extinguishing pump equipment 28: Simultaneous release valve 30: Water discharge Gun 32: front panel 34: fire detection unit 36: water gun cover 38: swing scanning unit 40: detection window 42: water discharge nozzle 44: deflector 48: beam scanning device 50: device housing 52: opening window 54: beam light source unit 56: Laser emitting unit 58: Diffusing unit 60: Parallelizing lens 62: Motor 64: Optical reflecting member 66: Circuit board 72: Beam light 74: Slide rail 76: Fixed mounting frame 76c: Slide groove 82: Adjustment screw 114: Dial 116: Rotation axis

Claims (14)

A water gun device supporting a water gun,
A control unit that drives the water discharge gun to discharge water;
In the fire extinguishing system equipped with
The water discharge gun apparatus is provided with a beam scanning apparatus which projects a beam light, which is horizontally aligned with the water discharge center line of the water discharge gun, and which performs rotational scanning or swing scanning in the vertical direction, to a protective section.
A fire extinguishing system characterized in that the control unit drives the beam scanning device in a predetermined operation state to project the light beam on the protective section and display a bright line corresponding to the water discharge center line.
In the fire extinguishing system according to claim 1,
It has a fire detection unit that detects a fire in the protected area,
The said control part directs the said water discharge gun in the fire detection direction detected by the said fire detection part, and makes it discharge water, The fire extinguishing system characterized by the above-mentioned.
The fire extinguishing system according to claim 2, wherein the control unit operates the beam scanning device to discharge water from the water discharge gun in a state where the water discharge gun is discharged in the fire detection direction detected by the fire detection unit. A fire extinguishing system, comprising: projecting a beam light onto a water film to be dispersed in the protected area, and displaying a vertical plane passing through the water discharge center line.
In the fire extinguishing system according to claim 1,
The beam scanning device
A device case fixed to the lower side of the water discharge gun and having an opening window in the direction of a vertical plane passing through the water discharge center line of the water discharge gun;
An optical reflecting member disposed rotatably around a horizontal axis inside the device casing facing the opening window, and reflecting beam light incident from the horizontal direction by the reflecting surface in the vertical direction and emitting it from the opening window;
A beam light source portion provided in the device housing and configured to horizontally receive the beam light on the reflecting surface of the optical reflecting member;
A driving unit provided in the device housing for rotationally driving the optical reflecting member at a predetermined speed to rotationally scan the beam light emitted from the opening window in the vertical direction;
A fire extinguishing system characterized by
In the fire extinguishing system according to claim 1,
The beam scanning device
A device case fixed to the lower side of the water discharge gun and having an opening window in the direction of a vertical plane passing through the water discharge center line of the water discharge gun;
An optical reflecting member disposed rotatably around a horizontal axis inside the device casing facing the opening window, and reflecting beam light incident from the horizontal direction by the reflecting surface in the vertical direction and emitting it from the opening window;
A beam light source portion provided in the device housing and configured to horizontally receive the beam light on the reflecting surface of the optical reflecting member;
A beam operation unit configured to rotate the optical reflecting member by operation of an adjustment operation unit provided outside the apparatus casing to rotate the beam light emitted from the opening window vertically;
A fire extinguishing system characterized by
In the fire extinguishing system according to claim 1,
A fire extinguishing system characterized in that the beam scanning device is provided on the lower side of the water discharge gun via an adjustment mechanism which adjusts the mounting position with respect to the water discharge gun.
In the fire extinguishing system according to claim 1,
The fire scanning system is characterized in that the beam scanning device projects while flashing a beam light.
In the fire extinguishing system according to claim 1,
The fire scanning system is characterized in that the beam scanning device projects while changing the intensity of the beam light.
In the fire extinguishing system according to claim 1,
The said beam scanning device makes the color of the beam light at the time of water discharge, and the beam light in other than the time of water discharge differ, The fire extinguishing system characterized by the above-mentioned.
In the fire extinguishing system according to claim 1,
The fire extinguishing system, wherein the control unit drives the beam scanning device to project the beam light onto the protection zone when turning to a fire point or before discharging water.
In a water gun apparatus that supports the water gun and can form a predetermined water discharge area in the protection zone,
Beam scan which coincides with the water discharge center line of the water discharge gun in the horizontal direction, projects the light beam rotating and swingingly scanned in the vertical direction onto the protective section, and displays a bright line corresponding to the projection image of the water discharge center line A water gun apparatus characterized in that the apparatus is provided.
In the water discharge gun device according to claim 11,
The beam scanning device
A device case fixed to the lower side of the water discharge gun and having an opening window in the direction of a vertical plane passing through the water discharge center line of the water discharge gun;
An optical reflecting member disposed rotatably around a horizontal axis inside the device casing facing the opening window, and reflecting beam light incident from the horizontal direction by the reflecting surface in the vertical direction and emitting it from the opening window;
A beam light source portion provided in the device housing and configured to horizontally receive the beam light on the reflecting surface of the optical reflecting member;
A driving unit provided in the device housing for rotationally driving the optical reflecting member at a predetermined speed to rotationally scan the beam light emitted from the opening window in the vertical direction;
The water gun apparatus characterized by having provided.
In the water discharge gun device according to claim 11,
The beam scanning device
A device case fixed to the lower side of the water discharge gun and having an opening window in the direction of a vertical plane passing through the water discharge center line of the water discharge gun;
An optical reflecting member disposed rotatably around a horizontal axis inside the device casing facing the opening window, and reflecting beam light incident from the horizontal direction by the reflecting surface in the vertical direction and emitting it from the opening window;
A beam light source portion provided in the device housing and configured to horizontally receive the beam light on the reflecting surface of the optical reflecting member;
A beam operation unit configured to rotate the optical reflecting member by operation of an adjustment operation unit provided outside the apparatus casing to rotate the beam light emitted from the opening window vertically;
The water gun apparatus characterized by having provided.
In the water discharge gun device according to claim 11,
A water gun apparatus characterized in that the beam scanning device is provided on the lower side of the water gun via an adjustment mechanism that adjusts the mounting position of the beam gun.

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