JP6395300B2 - Fire extinguishing system and water gun apparatus - Google Patents

Description

  The present invention relates to a fire extinguishing system and a water cannon apparatus that extinguishes fire by discharging water from a water cannon.

  Conventionally, as shown in FIG. 14, for example, a water spray gun apparatus that extinguishes fire by discharging fire-extinguishing water using a relatively wide space with a high ceiling, such as a gymnasium, as a protection section is known.

  As shown in FIG. 14, the water cannon apparatus 200 has the apparatus main body 202 embedded and installed on a wall surface having a height of about 4 meters, for example, which can overlook the floor surface of a gymnasium or the like, and is exposed on the wall surface of the apparatus main body 202. A fire detection unit 204 is provided at the top of the front panel, and a 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 protective compartment in the vertical direction within the range of the detection window formed in the vertical direction of the detection unit main body, and horizontally moves the fire detection unit 204. Rotating scans are used to monitor fires in the protected area.

  Further, the water cannon 206 is located in the back side of the swivel cover in the steady state and is housed in the apparatus main body 202. When the fire detection unit 204 detects infrared rays from the fire source 210 due to a fire in the protection zone, the fire is determined. The direction of the fire source 210 is specified, and the water discharge gun 206 is turned forward and directed toward the fire source 210. In the automatic mode, the water discharge indicated by the water discharge pattern 208 is started when a predetermined automatic water discharge condition is established. In addition, in the manual mode, water discharge is started when the water discharge start switch is operated.

  In this case, the turning control of the water gun 206 is performed by stopping the horizontal detection of the fire detection unit 204 at the horizontal position where the fire source 210 is detected, and performing the vertical scanning. By setting the horizontal scanning angle at which the source 210 is detected as a target value and performing a footback control so that the deviation from the turning angle detected by the turning angle detector (rotary encoder) provided in the water discharging gun 206 is zero, the water cannon 206 is directed in the detection direction of the fire source 210.

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

  For this reason, when installing the water gun apparatus 200, after installing the water gun apparatus 200 on the wall surface of the protection section, the water gun 206 is manually turned, for example, the front direction orthogonal to the wall surface, That is, an adjustment operation is performed to set the detection angle of the turning angle detector provided in the water discharge gun 206 to 90 ° in the state in which the horizontal scanning angle by the fire detection unit 202 is half, ie, 90 °.

Japanese Patent Laid-Open No. 08-038647 Japanese Patent Laid-Open No. 06-029999 Japanese Patent Laid-Open No. 06-031009 Japanese Patent Laid-Open No. 10-258136

  However, in the operation of adjusting the turning detection angle of the conventional water cannon, the water cannon which is turned by a manual operation while the operator stands at the front position away from the water cannon device 200 by the water discharge distance. It is said that if 206 is facing you, it will signal and stop and turn to the front, it is an artificial decision, so the accuracy is bad, and the water cannon 206 cannot be directed correctly to the front, In this state, since the detection angle of the turning angle detector provided in the water discharge gun 206 is set to 90 °, there is a problem that an error between the turning angle of the water discharge gun 206 and the fire detection angle by the fire detection unit 204 becomes large. .

  The present invention relates to a fire extinguishing system and a water cannon apparatus that can make the direction of the water discharge center line with respect to the protection section of the water cannon accurately visible so that the orientation of the water discharge gun in the horizontal direction and the detection angle of the fire detection unit can be adjusted. The purpose is to provide.

(Fire extinguishing system)
The present invention
A fire detection device that detects fire by two-dimensionally scanning the protective compartment; and
A water gun apparatus that supports a water gun fixed at a predetermined upward angle in a water discharge direction so as to be able to swivel around a horizontal direction;
A control unit that swings and drives the water gun so as to face the fire detection direction detected by the fire detection unit;
In a fire extinguishing system equipped with
The water gun device is provided with a beam scanning device that projects the beam light that coincides with the water discharge center line of the water gun in the horizontal direction and that rotates and scans in the vertical direction to the protective compartment,
The control unit drives the beam scanning device in a predetermined operation state to project the beam light to the protection section and display the bright line corresponding to the water discharge center line.

(Light beam scanning during water discharge)
The control unit operates the beam scanning device with water discharge guns in the fire detection direction detected by the fire detection unit, and projects beam light onto the water film that is sprayed from the water discharge guns to the protected area. Display a vertical plane through the line.

(Beam rotation scanning by drive source)
The beam scanning device
A device housing that is fixedly attached to the lower side of the water cannon and that has an opening window in the direction of a vertical plane that passes through the water discharge center line of the water cannon.
An optical reflecting member that is rotatably arranged around the horizontal axis inside the opening of the device housing, reflects the beam light incident from the horizontal direction in the vertical direction by the reflecting surface, and emits the light from the opening window;
A beam light source unit that is provided in the apparatus casing and that makes the beam light incident on the reflecting surface of the optical reflecting member from the horizontal direction;
A drive unit that 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 aperture window in the vertical direction;
Is provided.

(Manual beam rotation)
The beam scanning device
A device housing that is fixedly attached to the lower side of the water cannon and that has an opening window in the direction of a vertical plane that passes through the water discharge center line of the water cannon.
An optical reflecting member that is rotatably arranged around the horizontal axis inside the opening of the device housing, reflects the beam light incident from the horizontal direction in the vertical direction by the reflecting surface, and emits the light from the opening window;
A beam light source unit that is provided in the apparatus casing and that makes the beam light incident on the reflecting surface of the optical reflecting member from the horizontal direction;
A beam operation unit that rotates the optical reflecting member to rotate the light beam emitted from the aperture window in the vertical direction by operating an adjustment operation unit provided outside the apparatus housing;
Is provided.

(Blinking light beam)
The beam scanning device projects while flashing the beam light.

(Brightness of light beam)
The beam scanning device projects while changing the intensity of the beam light.

(Beam light projection when turning or before water discharge)
A control part drives a beam scanning device at the time of the turning to a fire point or before water discharge, and projects a beam light on a protection section.

(Water cannon device)
Another aspect of the present invention is a water spray gun apparatus capable of supporting a water spray gun having a water discharge direction fixed at a predetermined upward angle so as to be pivotable around a horizontal direction and forming a predetermined water discharge area in a protective section .
A water discharge center that coincides with the water discharge center line of the water discharge gun in the horizontal direction and projects the beam light that rotates or swings in the vertical direction to the protective compartment, and includes the minimum and maximum distance points from the water discharge gun in the water discharge area. A beam scanning device for displaying a bright line corresponding to the projected image of the line is provided.

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

(Basic effect)
The present invention relates to a fire detection device that detects a fire by two-dimensionally scanning a protective section, a water discharge device that supports a water discharge gun whose water discharge direction is fixed at a predetermined upward angle so as to be swivelable horizontally, and a fire detection unit. In a fire extinguishing system comprising a control unit that swings and drives the water gun so as to face the fire detection direction detected by the water discharge device, the water discharge gun device matches the water discharge center line of the water discharge gun in the horizontal direction, A beam scanning device that projects beam light that rotates in the vertical direction to the protection section is provided, and the control unit drives the beam scanning device in a predetermined operation state to project the beam light to the protection section, which corresponds to the water discharge center line. Because the bright line is displayed, the beam scanning device is used to rotate the beam light projected on the floor or wall surface of the protection zone or to the horizontal line where the water cannon is facing by the bright line by swinging scanning. It can be accurately known by visual observation.

(Effect of beam light scanning during water discharge)
The control unit operates the beam scanning device with the water discharge gun in the fire detection direction detected by the fire detection unit, and projects the beam light onto the water curtain that is sprayed from the water discharge gun to the protected area by the water discharge. Since the vertical plane that passes through the line is displayed, the water curtain shines like a curtain when it hits the water curtain that falls onto the protected area by the water discharge from the water gun. For example, it is dark at night or in the daytime. In the case of discharging water, it is possible to reliably grasp the state of water discharge by the illumination that becomes the curtain of light, and to increase the reliability of water discharge by the water gun.

  In addition, when the supervisor manually discharges the water gun in the direction of the fire source, the beam scanning device is operated to display the bright line by the vertical rotation scanning of the beam light in the protection area, so that the bright line is The water discharge gun can be accurately and easily pointed to the fire source by turning the operation so as to meet the requirements, and when the water discharge is started by the water discharge operation, the water can be reliably discharged to the fire source.

(Effect of beam rotation scanning by drive source)
The beam scanning device is attached and fixed to the lower side of the water cannon, and has a cylindrical device case in which an opening window is formed in the direction of the vertical plane passing through the water discharge center line of the water cannon, and the opening of the device case. An optical reflecting member that is rotatably arranged around the horizontal axis, reflects the beam light incident from the horizontal direction in the vertical direction by the reflecting surface, and exits from the aperture window. A beam light source unit that makes beam light incident on the reflection surface from the horizontal direction, and a drive unit that is provided in the apparatus casing and rotates the optical reflection member at a predetermined speed to rotate and scan the beam light emitted from the aperture window about the vertical direction. Therefore, by realizing the beam scanning device as a compact cylindrical device, it can be properly installed in the space below the water cannon, requiring almost no change on the water cannon device side. ,beam It makes it possible to take advantage provided 査 device.

  In addition, when a laser light source is used for the beam light source unit by rotating the beam light in the vertical direction by rotating an optical reflecting member such as a mirror member by the driving unit, the laser output exceeds 1 mW, for example, and harms humans. Even if the level is affected, when the laser spot is driven to rotate at 30 rpm, for example, where the movement of the laser spot can be recognized as a bright line, the laser beam is not a fixed beam but a moving beam. The energy of the laser beam is greatly reduced, for example, even if a laser light source with an output exceeding 200 mW is visible when traveling in the air, the bright line can be displayed in the protective compartment without harming humans. Application to a water spray gun having a water discharge distance exceeding 100 meters is also possible.

(Effect of beam rotation by manual operation)
The beam scanning device is mounted and fixed to the lower side of the water cannon, and has an apparatus housing in which an opening window is formed in the direction of the vertical plane passing through the water discharge center line of the water cannon, and a horizontal interior facing the opening window of the device housing. An optical reflecting member that is rotatably arranged around the axis, reflects the beam light incident from the horizontal direction in the vertical direction by the reflecting surface, and exits from the aperture window, and is provided in the apparatus housing, and is provided on the reflecting surface of the optical reflecting member. Beam operation that rotates the optical reflecting member and rotates the beam light emitted from the aperture window in the vertical direction by operating the beam light source unit that enters the beam light from the horizontal direction and the adjustment operation unit provided outside the device housing. Because it does not require a motor or other drive source, the configuration is simple and low-cost, and the bright spot to be used for confirmation when directing the water gun in the front direction is provided in the protective compartment. By displaying, water discharge Fire detection unit the turning angle detected is to allow adjustment operation be set to match the fire detection angle when facing forward.

(Effect of blinking light beam)
In addition, the beam scanning device can display a bright line that is a broken line or a moving broken line on the floor surface or wall surface of the protection section by projecting the light beam while blinking.

(Effects of light / dark changes in beam light)
Further, the beam scanning device can change the brightness of the bright line displayed on the floor surface or wall surface of the protection section as necessary by projecting while changing the intensity of the beam light.

(Effects of two-color beam light)
In addition, the beam scanning device is designed so that the color of the beam light at the time of water discharge is different from the color of the light beam at times other than the time of water discharge. In this case, it is possible to distinguish from the time of water discharge by projecting a green beam light.

(Effects of beam light projection during turning or before water discharge)
In addition, the control unit drives the beam scanning device to project the beam light to the protection area when turning to the fire point or before water discharge, so that the general facility user is notified of water discharge and warns the attention. Is possible.

(Effects of water gun device)
The effect of the water cannon device is the same as the case where the beam scanning device is provided in the water cannon device of the fire extinguishing system described above.

Explanatory drawing showing the outline of a fire extinguishing system with a water gun Explanatory drawing showing the water discharge area of the water spray gun and the bright line display by the beam scanning device Explanatory drawing showing the water gun device taken out from the front Side view showing the water gun device taken out from the side Explanatory drawing showing the state where the water gun is swiveled toward the protective compartment Explanatory diagram showing the water gun taken out from the side Cross section showing the internal structure of a water gun Explanatory drawing showing the water gun taken out from the front Explanatory drawing showing the beam scanning device taken out Block diagram showing functional configuration of beam scanning device Explanatory drawing showing the mounting structure of the beam scanning device to the water spray gun The block diagram which showed the outline of the functional structure of the fire extinguishing system of FIG. Explanatory drawing which showed other embodiment of the beam scanning apparatus which scans beam light by dial operation. Explanatory drawing showing water discharge by a conventional water gun installed in a protective compartment

(Outline of fire extinguishing system)
FIG. 1 is an explanatory diagram showing an outline of a fire extinguishing system provided with a water cannon. As shown in FIG. 1, the fire extinguishing system includes a water cannon apparatus 10, an on-site operation panel 12, a unit control panel 14, a master control panel 16, a fire alarm receiver 18, a fire detector 20, a pump control panel 22, and a fire pump. An example is a case in which a facility 24, a water supply pipe 26, and a simultaneous release valve 28 using a motor-operated valve are provided, and two systems of the water gun apparatus 10 are installed in the protection section.

  The operation of the fire extinguishing system is as follows. The water cannon apparatus 10 monitors the fire by two-dimensionally scanning the protection area by scanning the fire detection unit, and when detecting infrared rays from the flame of the fire source, the monitoring scan is stopped at that position and the fire source direction is indicated. A fire detection signal including data is transmitted to the unit control panel 14. The unit control panel 14 scans the water gun of the water gun apparatus 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. The water discharge control includes an automatic water discharge mode, a semi-automatic water discharge mode, and a manual water discharge mode.

  In the case where the automatic water discharge mode is set on the master control panel 16 or the local operation panel 12, the unit control panel 14 is installed in the protection section in addition to the fire detection signal from the fire detection unit of the water gun apparatus 10. When the fire alarm signal is received from the fire alarm receiver 18 that has received the fire detector 20, it is determined that the automatic water discharge condition has been established, and the pump control signal is sent to the pump control panel 22 after a predetermined time countdown. To start the fire pump of the fire pump facility 24, send an open control signal to the simultaneous release valve 28 to control the opening, and start water discharge from the water gun of the water gun apparatus 10.

  When the water discharge is started, a timer that sets a predetermined water discharge time is started on the unit control panel 14, and when the time is up, the simultaneous release 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 gun apparatus 10, and if fire detection is performed, it is a case where the fire has been burned up again after water discharge. The water gun is swiveled to resume water discharge. If no fire is detected even after the start of the fire monitoring scan, the unit control panel 14 enters normal state monitoring.

  In addition, since the automatic water discharge mode is usually performed in an unattended state, the fire extinguisher pump equipment can be manually operated after judging the situation by checking the situation of the site by visiting the manager who received the fire report. Recover 24 stops.

  When the semi-automatic water discharge mode is set on the master control panel 16 or the local operation panel 12, the unit control panel 14 scans the water gun of the water gun apparatus 10 in the direction of the fire source based on the fire detection signal, and prepares for water discharge. Is completed, the water discharge operation signal is received from the local operation panel 12 or the master control panel 16, and water discharge from the water discharge gun is started.

The water discharge operation by the local operation panel 12 or the master control panel 16 is a water discharge operation in which a monitor inserts a key into a manual water discharge switch provided on the operation panel and operates the water discharge position. The unit control panel 14 that has 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 pump of the fire pump equipment 24, and sends an open control signal to the simultaneous release valve 28. Open control is performed and water discharge from the water gun of the water gun apparatus 10 is started. When the monitoring person confirms that the fire is extinguished, the manual water discharge switch of the local operation panel 12 or the master control panel 16 is operated to the water discharge stop position, and in response to this, the unit control panel 14 closes the simultaneous release valve 28 and stops water discharge. In addition, the recovery of the fire pump 24 is stopped manually.

When the manual water discharge mode is set on the master control panel 16 or the local operation panel 12, the monitoring person who confirms the fire turns the water discharge gun of the water gun apparatus 10 by operating the local operation panel 12, for example. The unit control panel 14 sends a pump start signal to the pump control panel 22 in response to the water discharge operation signal by inserting a key into the manual water discharge switch and operating the water discharge position toward the fire source. The pump is activated, an open control signal is sent to the simultaneous release valve 28 to perform the open control, and water discharge from the water discharge gun of the water discharge gun apparatus 10 is started. When the monitoring person confirms that the fire is 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 and stops water discharge. In addition, the recovery of the fire pump 24 is stopped manually.

[Water discharge area and beam scanning of water discharge gun device]
(Water spray pattern of water gun)
FIG. 2 is an explanatory view showing the water discharge area of the water discharge gun and the bright line display by the beam scanning device. As shown in FIG. 2, the water cannon apparatus 10 is installed at a predetermined height of the wall surface in a protective compartment such as a gymnasium, and monitors the fire in the protective compartment 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 swiveled in the direction of the fire source to discharge water, and as shown in the water discharge pattern 120, the specified water amount per unit time is within a predetermined width up to a predetermined water discharge distance. The water is discharged.

(Outline of beam scanning device)
In the present embodiment, a beam scanning device 48 is provided under the water gun 30. The beam scanning device 48 matches the water discharge center line of the water discharge gun 30 in the horizontal direction, projects a laser beam light that rotates or swings in the vertical direction to the protection section, and corresponds to a projection image of the water discharge center line. The bright line 122 is displayed on the floor surface or wall surface of the protective compartment, thereby making it possible to accurately know the direction in which the water gun 30 is currently facing by visual inspection.

  The display of the bright line 122 with respect to the protection section is because the light beam projected from the beam scanning device 48 is blocked by the opening window or the water gun 30, so even if the light beam is rotationally scanned around the vertical axis, The bright line 122 is displayed in a scan that includes at least the outer edge of the water discharge area S that is the maximum water discharge distance from the point P immediately below.

(Beam scanning while water discharge is stopped)
For example, when the water spray gun device 10 is installed, the bright line 122 displayed by the beam scanning device 48 is appropriately marked at a point Q separated from the water spray gun device 10 by the maximum water discharge distance. The water gun 30 is swung and positioned by manual operation so that the bright line 122 by the rotational scanning of the beam light passes, and thereby the water gun 30 can be accurately directed in the front direction.

  In this state, by performing an adjustment operation to set the swivel detection angle of the swivel angle detector (rotary encoder) provided in the water discharge gun 30 to match the fire detection angle when the fire detection unit faces the front, An error in the horizontal detection angle between the fire detection unit 34 and the water discharge gun 30 is reduced or eliminated, and the water discharge gun 30 is accurately swiveled in the direction of the fire detection angle detected by the fire detection unit 34 to be in the direction of the fire source. The fire-fighting water can be discharged to ensure that the fire is extinguished.

  Further, as another usage of the beam scanning device 48, the water scanning gun 48 is operated by turning the water discharging gun 30 by manual operation, and the beam scanning device 48 is operated to display the bright line 122 by the vertical rotation scanning of the beam light in the protection section. The display corresponding to the water discharge simulation by the gun 30 can be performed, and the state of water discharge by the water discharge gun 30 can be grasped as an actual feeling without actual water discharge.

  Further, in the manual water discharge control in the case where the manual water discharge mode is set, when the monitoring person points the water discharge gun 30 in the direction of the fire source, the beam scanning device 48 is operated to display the bright line 122 by the vertical rotation scanning of the beam light. By displaying it in the protection zone, turning and stopping so that the bright line 122 matches the fire source, the water spray gun 30 can be accurately and easily pointed to the fire source, and water discharge is started by the water discharge operation. If this happens, make sure that the water can be discharged to the fire source.

(Light beam scanning during water discharge)
Further, as a usage of the beam scanning device 48, when the water gun 30 is swung in the fire detection direction detected by the fire detection unit 34 and water is discharged, the beam scanning device 48 is operated and water is discharged from the water gun 30 to the protected area. Beam light is projected onto the spray pattern 120 to be sprayed, and the water curtain shines like a curtain when the beam hits the water curtain that falls onto the protection area by the water discharge from the water gun 30. For example, it is dark at night or in the daytime. In the case of discharging water, it is possible to surely grasp the state of water discharge by lighting as a curtain of light, and to increase the reliability of water discharge by the water discharge gun 30 by looking at this.

[Outline of water cannon equipment]
FIG. 3 is an explanatory diagram showing the water gun device taken out from the front, FIG. 4 is an explanatory diagram showing the water gun device taken out from the side, and FIG. 5 shows a state in which the water gun is swung toward the protective compartment. It is explanatory drawing.

  As shown in FIGS. 3 and 4, the water gun apparatus 10 has a front panel 32 attached to the front of a box-shaped device main body 31, and a fire detection unit 34 is provided above the front panel 32. A water gun cover 36 incorporating a water gun is provided.

  The fire detection unit 34 has a conical swivel scanning unit 38 disposed under a semi-cylindrical overhanging portion so as to be able to rotate and rotate around the horizontal, and the swivel scanning unit 38 is provided with a detection window 40 in the vertical direction. ing. The fire detection unit 34 includes a scanning optical system that includes an infrared sensor and a rotating mirror that vertically scans the detection optical axis with respect to the protection section of the infrared sensor.

  For this reason, the fire detection unit 34 has a detection optical axis from the infrared detection element with respect to the protection section in the range of the detection window 40 formed in the vertical direction of the swivel scanning unit 38, for example, 90 ° which is downward from 0 ° which is horizontal. In addition to repeatedly scanning in the vertical direction optically in the range, the scanning of the swivel scanning unit 38 is reciprocated in the horizontal direction within a range of, for example, 180 ° to detect fire in the protective section.

  The water cannon cover 36 accommodates a water cannon on the back side in a normal state. When a fire is detected by the fire detection unit 34, as shown in FIG. The water discharge gun 30 is directed toward the fire source detected by the detection unit 34 to discharge water.

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

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

  A motor connecting portion 46 is provided in the upper part of the vertical portion of the water supply pipe 41, and the water drive gun 30 can be turned in a horizontal turning range of, for example, 180 ° by connecting a drive shaft of a motor arranged in the upper portion thereof. 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 in the front-rear direction is disposed in front of the fixed case 43.

  A deflector 44 is supported and fixed at an opening in front of the movable case 45. The deflector 44 is located in front of the water discharge nozzle 42 and sprays water upon receiving the collision of the jet from the water discharge nozzle 42. For example, the water discharge amount is minimized and the water discharge amount is minimized in an effective water discharge distance of 16 meters or 18 meters. Allow watering.

[Beam scanning device]
(Configuration of beam scanning device)
FIGS. 9A and 9B are explanatory views showing the beam scanning device, in which FIG. 9A shows the front, FIG. 9B shows the side, and FIG. 9C shows the cross section in the lateral direction. As shown in FIG. 9, the beam scanning device 48 includes a cylindrical device housing 50 that has an opening window 52 sealed with a transparent cover 65 at the center, vertically extending over a range of about 180 ° centering in a diagonally downward direction. It is formed in the direction. A slide rail 74 that opens in an inverted triangle is fixed to the upper portion of the apparatus housing 50 with screws 75.

  A beam light source unit 54 housed in a case 55 is disposed on the right side inside the apparatus housing 50. The beam light source unit 54 includes a laser emission 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. In order to improve the visibility of the bright line displayed by scanning the protective beam with the beam light, the green laser beam is desirable, and the red laser beam is desirable in terms of cost.

  Further, a laser diode that emits red laser light and a laser diode that emits green laser light may be arranged in the laser light emitting unit 56, and the red and green laser lights may be switched and emitted as necessary. .

  In this way, when it is possible to emit two colors of laser light, for example, when water is discharged, red laser light is projected to call attention. On the other hand, when water is discharged or less, green laser light is projected. It can be distinguished from the time of water discharge.

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

  Here, the output of the laser emission unit 56 is preferably a low output of 1 mW or less in order to ensure safety for humans, and the water discharge distance is 16 meters or 18 meters like the water gun device 10 described above. In the case of such a small-sized water gun, the bright line obtained by scanning the light beam can be clearly visually recognized even at such an output.

  On the other hand, in the case of a medium-scale water gun with a water discharge distance of 70 meters or a large water gun with a water discharge distance of more than 100 meters, a high output exceeding 100 mW is required in order to make it possible to clearly see the bright line by scanning the beam light. It is necessary to. In addition, even a small water cannon can have a high output exceeding 100 mW in order to clearly display bright lines.

  An optical reflecting member 64 is rotatably disposed around the horizontal axis inside the device housing 50 facing the opening window 52, and beam light incident from the horizontal direction is formed at a 45 ° angle by the beam light source unit 54. The light is reflected in the vertical direction by the reflected surface and emitted from the opening window 52. The optical reflecting member 64 has a reflecting mirror provided 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 ° centered obliquely downward, and is sealed by mounting a transparent cover 65 formed in a ring shape inside.

  The optical reflecting member 64 is fixed to the rotating shaft of the motor 62 housed and disposed on the left side of the case 61 and is driven to rotate in the vertical direction, thereby reflecting the beam light of the laser incident from the beam light source unit 54 and turning in the vertical direction. Scanning and projecting the beam 72 from the aperture window 52 to the outside.

  Here, the rotational speed of the optical reflecting member 64 by the motor 62, that is, the rotational speed of the beam light 72 in the vertical direction is set to a constant rotational speed of 30 rpm or more. In this way, by setting the rotation speed of the beam light 72 to 30 rpm, the beam spot moving by the beam scanning in the protection section as shown in FIG. In other words, the optical reflecting member 64 is rotated and scanned by the motor 62 so that the bright spot due to the projection of the beam 72 passes 30 times or more per second.

  In addition, by scanning the light beam at a rotation speed of 30 rpm or more, for example, even when the laser beam light is directly viewed by a person, the laser beam light is not a fixed irradiation like a laser pointer, but a moving irradiation. The energy of the laser beam received by a person is greatly reduced, and a bright line can be seen when traveling in the air. For example, even if the laser light has an output exceeding 200 mW, the bright line is applied to the protective compartment without harming the person. It can be displayed safely.

  A circuit board 66 is accommodated on the left side of the motor 62, and a drive circuit for the laser light emitting unit 56 and a drive circuit for the motor 62 are mounted on the circuit board 66. The beam scanning device 48 is operated in response to the signal.

  FIG. 10 is a block diagram showing a functional configuration of the beam scanning device, in which a light emission drive unit 88 is provided for the beam light source unit 54, and a turning drive unit provided with a motor for the turning scanning unit 92 provided with a reflective optical member. 90, and the control unit 86 enables the light emission drive unit 88 and the turning drive unit 90 to operate based on a control signal from the outside.

(Beam scanning device mounting structure and position adjustment mechanism)
FIG. 11 is an explanatory view showing a structure for mounting the beam scanning device to the water spray gun, FIG. 11 (A) is a front view, FIG. 11 (B) is an XX cross section of FIG. 11 (A), and 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 a fixed frame member 76. The fixed frame member 76 has a slide groove 76c having an inverted triangular cross section opened downward in a horizontal portion 76b connecting the attachment portions 76a on both sides, and the attachment portion 76a is fitted into the water gun 30 from below. Secure with screws 77.

  A slide rail 74 fixed to the upper part of the apparatus housing 50 is fitted from the right side into the slide groove 76c of the fixed frame seat 76 fixed to the water spray gun 30, and a plate member 78 is fixed to the right side with screws 79. To prevent it from coming off. Here, the horizontal width of the slide rail 74 fixed to the apparatus housing 50 is shortened by a predetermined length ΔL with respect to the horizontal width of the slide groove 76 c, and the center of the opening window 52 through which the beam light passes is the water discharge center line of the water discharge gun 30. 35, a gap for position adjustment of ΔL / 2 is formed on both sides.

  An adjustment screw 82 is screwed into the attachment portion 76a located on the left side of the fixed attachment member 76 and the screw hole 80 of the plate member 78 fixed to the right side, and one of the left and right adjustment screws 82 is loosened and the other is screwed in. As a result, the apparatus housing 50 can be moved and adjusted in the horizontal direction.

  By such a position adjusting mechanism of the beam scanning device 48, even if there is an attachment error between the direction of the radial center line of the water cannon 30 and the beam projection direction from the beam scanning device 48 attached and fixed thereto, By adjusting the position of the device housing 50 side with respect to the fixed side, the directions in the horizontal plane of both are accurately matched, and the bright line corresponding to the water discharge center line of the water discharge gun 30 is accurately displayed in the protective section. Make it possible.

[Functional configuration of fire extinguishing system]
FIG. 12 is a block diagram showing an outline of a functional configuration of the fire extinguishing system of FIG. 1, and shows one system of FIG. As shown in FIG. 12, the water cannon device 10 is provided with a fire detector 34, a water cannon driving motor 94, a water cannon turning 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. The detection scanning line from the infrared sensor 98 to the protection section is rotated stepwise by, for example, 1 ° by the horizontal scanning motor 100. The fire in the protection zone is monitored by scanning in the vertical direction with the mirror rotation by the vertical scanning motor 102 at the step rotation error degree.

  The local operation panel 12 and the master control panel 16 have functions of a water discharge operation unit 106, 110 and a water discharge stop operation unit 108, 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. Further, the local operation panel 12 and the master control panel 16 perform control to transfer the operation right to one of them, and validate the operation on the side having the operation right.

  The unit control panel 14 includes a control unit 104. The control unit 104 controls the water discharge gun of the water discharge gun apparatus 10 toward a fire source according to an automatic water discharge mode, a semi-automatic water discharge mode, or a manual water discharge mode. Control to start the water discharge from the water discharge gun by performing the open control to the simultaneous release valve 28, automatic water discharge stop control in the automatic water discharge mode, stop of the observer who confirmed the fire extinguishing in the semi-automatic water discharge mode and the manual water discharge mode Water discharge stop control based on operation is performed.

  Further, the control unit 104 of the unit control panel 14 controls the beam scanning device 48 provided in the water spray gun apparatus 10 in a water discharge stop state or water discharge based on the operation or setting operation of the local operation panel 12 and the master control panel 16. Control for operating the beam scanning device 48 is performed.

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

As shown in FIG. 13, the beam scanning device 48 is provided with a rotating 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. By rotating the dial 114, the light beam 72 projected from the aperture window 52 can be rotated vertically. Yes.

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

  As described above, the beam scanning device 48 rotates the optical reflecting member 64 and rotates the beam light 72 emitted from the aperture window 52 around the vertical direction by operating the dial 114 that functions as an adjustment operation unit provided outside the device housing 50. Since the motor is not required to be driven, the configuration is simple and the cost is low, and the light beam shines on the mark provided in the protection section indicating the front direction. By performing the rotation operation, an adjustment operation for setting the turning detection angle of the water cannon 30 to the fire detection angle when the fire detection unit 34 faces the front is enabled.

  In the present embodiment, since the beam light is not rotated at a constant speed as in the case of motor driving, there is a possibility that a person may look directly at the laser beam light. It is desirable to have a low output of 1 mW or less. Further, when the output of the laser light emitting unit 56 is set to a high output, it is necessary to perform a dial operation while paying sufficient attention so as not to project toward a person.

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

(Brightness of light beam)
As another embodiment of the present invention, the brightness of the bright line displayed on the floor or wall surface of the protective compartment is changed as necessary by projecting while changing the intensity of the beam light from the beam scanning device. It is possible to make it.

(Beam light projection when turning or before water discharge)
Further, as another embodiment of the present invention, the control unit drives a beam scanning device to project a beam light to a protection section when turning to a fire point or before water discharge, so that a general facility user can It is possible to alert the water discharge in advance.

(Water cannon)
The above embodiment is an example of a water cannon device in which a fire detecting unit and a water cannon are integrated, but the same applies to a water cannon device in which a fire detecting unit and a water cannon are installed separately. A beam scanning device may be attached to the lower side of the water discharge gun, and the beam light may be swung and scanned on a vertical plane passing through the water discharge center line.

(Beam swing scanning)
Although the beam scanning apparatus of the above embodiment rotates and scans the beam light vertically, the beam scan may be swung in a predetermined angle range obliquely downward. As a mechanism for swinging and scanning the light beam, a driving mechanism using a galvanometer mirror or the like is used.

(Existing beam scanning device)
The beam scanning device of the above embodiment is an example in which the beam scanning device is attached at the manufacturing stage of the water cannon device, but may be a beam scanning device that can be retrofitted to an existing water gun device. In this case, in addition to the beam scanning device of the above-described embodiment, a control unit including a battery power source and a wireless transmission / reception unit is prepared, connected to the connector of the beam scanning device with a cable, and placed on the local operation panel side. A control signal is transmitted from the operating device to operate the control unit, and the beam scanning device is operated by supplying power from the control unit and outputting the control signal.

  Further, in order to simplify the beam scanning device for the existing water gun device, it is desirable to use a magnet adsorption mounting fixing frame.

(Other)
The present invention includes appropriate modifications without impairing the object and advantages thereof, and is not limited by the numerical values shown in the above embodiments.

10: Water gun device 12: On-site operation panel 14: Unit control panel 16: Master control panel 18: Self-reporting 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 spray gun cover 38: Swivel 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: Rotating shaft

Claims (13)

A fire detection device that detects fire by two-dimensionally scanning the protective compartment; and
A water gun apparatus that supports a water gun fixed at a predetermined upward angle in a water discharge direction so as to be able to swivel around a horizontal direction;
A control unit that swings and drives the water gun so as to face the fire detection direction detected by the fire detection unit;
In a fire extinguishing system equipped with
The water spray gun apparatus is provided with a beam scanning device that projects the beam light, which coincides with the water discharge center line of the water spray gun in the horizontal direction and rotates and scans in the vertical direction to the protection section
The fire extinguishing system, wherein the control unit drives the beam scanning device in a predetermined operation state to project the beam light onto the protection section and display a bright line corresponding to the water discharge center line.
2. The fire extinguishing system according to claim 1, wherein the control unit operates the beam scanning device in a state where the water gun is discharged in a fire detection direction detected by the fire detection unit, and discharges water from the water gun. A fire extinguishing system, wherein a beam plane is projected onto a water film dispersed in the protected area to display a vertical plane passing through the water discharge center line.
The fire extinguishing system according to claim 1,
The beam scanning device comprises:
An apparatus housing attached and fixed to the lower side of the water gun, and having an opening window in the direction of a vertical plane passing through the water discharge center line of the water gun;
An optical reflecting member that is rotatably arranged around a horizontal axis inside the opening of the device casing and that reflects the beam light incident from the horizontal direction in the vertical direction by a reflecting surface and exits from the opening window;
A beam light source unit that is provided in the apparatus casing and that makes the light beam incident on the reflecting surface of the optical reflecting member from a horizontal direction;
A drive unit that is provided in the apparatus casing and rotationally drives the optical reflecting member at a predetermined speed and rotationally scans the beam light emitted from the aperture window in the vertical direction;
Fire extinguishing system characterized by providing
The fire extinguishing system according to claim 1,
The beam scanning device comprises:
An apparatus housing attached and fixed to the lower side of the water gun, and having an opening window in the direction of a vertical plane passing through the water discharge center line of the water gun;
An optical reflecting member that is rotatably arranged around a horizontal axis inside the opening of the device casing and that reflects the beam light incident from the horizontal direction in the vertical direction by a reflecting surface and exits from the opening window;
A beam light source unit that is provided in the apparatus casing and that makes the light beam incident on the reflecting surface of the optical reflecting member from a horizontal direction;
A beam operation unit that rotates the optical reflecting member to rotate the beam light emitted from the aperture window in a vertical direction by operating an adjustment operation unit provided outside the apparatus housing;
Fire extinguishing system characterized by providing
The fire extinguishing system according to claim 1,
The fire extinguishing system, wherein the beam scanning device is provided on the lower side of the water gun through an adjustment mechanism that adjusts a mounting position of the water gun.
The fire extinguishing system according to claim 1,
The beam scanning device projects a light beam while blinking the light beam.
The fire extinguishing system according to claim 1,
The beam scanning device projects the light while changing the intensity of the light beam.
The fire extinguishing system according to claim 1,
The beam scanning device is characterized in that the color of the beam light at the time of water discharge differs from the color of the beam light at times other than the time of water discharge.
The fire extinguishing system according to claim 1,
The said control part drives the said beam scanning device at the time of the turning to a fire point or before water discharge, and projects the said beam light to the said protection area, The fire extinguishing system characterized by the above-mentioned.
In a water spray gun apparatus capable of supporting a water spray gun whose water discharge direction is fixed at a predetermined upward angle so as to be pivotable around a horizontal direction and forming a predetermined water discharge area in a protective compartment ,
A beam light that is aligned with the water discharge center line of the water spray gun in the horizontal direction and that is rotated or swung in the vertical direction is projected onto the protective compartment, and the minimum distance point and the maximum distance point from the water discharge gun in the water discharge area A water spray gun apparatus comprising a beam scanning device that displays a bright line corresponding to a projection image of the water discharge center line including
The water gun according to claim 10,
The beam scanning device comprises:
An apparatus housing attached and fixed to the lower side of the water gun, and having an opening window in the direction of a vertical plane passing through the water discharge center line of the water gun;
An optical reflecting member that is rotatably arranged around a horizontal axis inside the opening of the device casing and that reflects the beam light incident from the horizontal direction in the vertical direction by a reflecting surface and exits from the opening window;
A beam light source unit that is provided in the apparatus casing and that makes the light beam incident on the reflecting surface of the optical reflecting member from a horizontal direction;
A drive unit that is provided in the apparatus casing and rotationally drives the optical reflecting member at a predetermined speed and rotationally scans the beam light emitted from the aperture window in the vertical direction;
A water gun apparatus characterized by comprising:
The water gun according to claim 10,
The beam scanning device comprises:
An apparatus housing attached and fixed to the lower side of the water gun , and having an opening window in the direction of a vertical plane passing through the water discharge center line of the water gun ;
An optical reflecting member that is rotatably arranged around a horizontal axis inside the opening of the device casing and that reflects the beam light incident from the horizontal direction in the vertical direction by a reflecting surface and exits from the opening window;
A beam light source unit that is provided in the apparatus casing and that makes the light beam incident on the reflecting surface of the optical reflecting member from a horizontal direction;
A beam operation unit that rotates the optical reflecting member to rotate the beam light emitted from the aperture window in a vertical direction by operating an adjustment operation unit provided outside the apparatus housing;
A water gun apparatus characterized by comprising:
The water gun according to claim 10,
The water spray gun apparatus according to claim 1, wherein the beam scanning device is provided below the water gun via an adjustment mechanism that adjusts a mounting position of the water gun.

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