TWI791115B - Water discharge device and fire extinguishing system - Google Patents

Abstract

The present invention provides a water discharge device which allows its water spray gun to be installed in an easily accessible low position and thus makes the inspection of the water spray gun an easy task.

A water discharge device 1 according to the present invention is installed indoors or outdoors, and includes: a water supply pipe 20 consisted of two or more pipes 21, 22 that extend or contract by nested-sliding, the water supply pipe 20 elongating in a vertical direction due to a pressure from the water delivered into the pipes 21, 22 and thus allowing the water delivered into the pipes 21, 22 to pass therethrough upwardly; a shutoff valve 30 for controlling the outflow of water from the water supply pipe 20; a water spray gun 70 arranged at an upper side of the water supply pipe 20 and letting out the water passing through the water supply pipe 20; and a control panel which controls the on-off of the shutoff valve 30 and the direction of the water spray gun 70.

Description

Water release device and fire extinguishing system

The present invention relates to a water discharge device suitable for protecting a large-scale space that is obligated to install and maintain sprinkler equipment such as a water discharge type sprinkler head, and a fire extinguishing system using the water discharge device.

On February 16, Heisei 8 (1996), Japan promulgated a part of the amendment to the Fire Protection Law Enforcement Order and a part of the Fire Protection Law Enforcement Regulations. Partly, the obligation to install and maintain sprinkler equipment such as water-discharging sprinklers. Therefore, fire extinguishing systems using water cannons are installed in high-ceilinged and large-scale spaces such as dome stadiums and large-scale exhibition facilities.

For example, in Japanese Patent Application Laid-Open No. 6-31009 (Patent Document 1), a fire extinguishing system suitable for a large space using a water nozzle is proposed. The fire extinguishing system is equipped with a fire detector, a water discharge gun and a water discharge gun operation panel. Fire detectors are installed in large-scale spaces that are protected objects. The water gun is installed on the horizontal rotating part of the stand, and can rotate freely in the horizontal direction. Furthermore, the water gun system is set to the angle of the elevation angle θ of the maximum shooting distance. The water gun operation panel is based on the detection result of the fire detector, which automatically or manually makes the water gun operate.

Furthermore, in Japanese Patent Application Laid-Open No. 2016-59426 (Patent Document 2), a fire extinguishing system in which a beam scanning device is provided on a water discharge gun is proposed. The horizontal direction of the beam scanning device is consistent with the water discharge center line of the water discharge gun, and the beam that rotates and scans in the vertical direction is projected to the protected area. Thereby, the bright mark of the light beam corresponding to the central line of the water discharge of the water discharge gun is displayed on the floor or wall of the protected area. By visually observing this bright mark, it is possible to accurately know the direction in which the water gun is currently being released.

(Prior Art Literature) (patent documents)

Patent Document 1: Japanese Patent Application Laid-Open No. 6-31009

Patent Document 2: Japanese Patent Laid-Open No. 2016-59426

<Issues of setting at a high place>

Spraying equipment has the obligation to carry out a machine inspection every six months and a comprehensive inspection once a year (Heisei 16 (2004) May 31, Japan Fire Agency Notice No. 9). The fire extinguishing system using the above-mentioned known water gun is also a legally required spraying device, and must be inspected twice a year.

However, in a space with a high roof and a large scale, the known water guns are usually placed at a high place where the space can be viewed broadly. It is extremely difficult to artificially contact the water gun installed at a high place, and the inspection of the water gun is accompanied by danger and labor problems. For example, when the water gun is installed at a height of about 10m, it must be inspected with a high-altitude operation vehicle. And, when the water discharge gun is arranged at a high place that cannot be reached by the high-altitude operation vehicle, a stand that can reach the height of the water discharge gun must be assembled in addition.

Especially, the size of the water gun is directly proportional to the maximum water discharge and the shooting distance. The larger the space of the protected object, the larger and heavier the installed water nozzle will be, and the inspection, maintenance and repair operations at high places will be more difficult.

<Problems with Wall Setting>

For example, if it is a dome stadium, it is not possible to set up water guns on the ground of the stadium and the audience seating area. If it is a large-scale exhibition facility, water guns cannot be installed on the floor of the exhibition space. Therefore, the fire extinguishing system of known large-scale space usually is the composition that the long-range water discharge gun is arranged on the wall (patent document 2).

However, when the water discharge gun is installed on the wall, water cannot be discharged to the back side of the water discharge gun, and the range that can discharge water is limited to half of the range. Therefore, in the fire extinguishing system of known large-scale space, can only bring into play the performance of half of the water discharge gun, in order to make the large-scale space all within the firing range, must arrange plural long-range and large-scale water discharge guns.

If a plurality of long-range and large-scale water nozzles are installed, not only the above-mentioned high-level inspection and other operations will be more difficult, but also the cost of the fire extinguishing system itself and the cost of inspection and other operations will become extremely expensive.

<Purpose of the invention>

The present invention was developed in view of the above-mentioned problems, and its purpose is to provide a water discharge device and a fire extinguishing system that exert the following technical effects.

●Set up the water discharge gun at a low place that can be easily touched by people, so that it is easy to carry out operations such as inspection of the water discharge gun.

●Water guns can be placed on high places where large-scale spaces can be viewed extensively.

●The discharge range of the water gun is not limited and the performance of the water gun can be effectively played.

●It is possible to protect a large-scale space with a smaller number of water guns than before or a shorter and smaller water gun than before.

●It can be used to reduce the cost of the fire extinguishing system itself to protect a large-scale space and the cost of the inspection of the water gun.

(1) In order to achieve the above-mentioned purpose, the water discharge device of the present invention is installed indoors or outdoors, and has: a water delivery pipe, which is composed of two or more pipes that are sleeved and slid to expand and contract, and receive the water supplied to the aforementioned pipes. The pressure becomes a state of elongation in the vertical direction, and the water supplied to the aforementioned pipe can pass from bottom to top; the valve controls the outflow of water from the aforementioned water delivery pipe; the water discharge gun is arranged on the upper side of the aforementioned water delivery pipe, The water passing through the aforementioned water delivery pipe can be discharged to the outside; and the control panel of the water discharging device is used to control the opening and closing of the aforementioned valve and the direction of the aforementioned water discharge gun.

(2) Preferably, in the water discharge device of the above (1), it is further provided with: a brake mechanism for stopping the sliding of the aforementioned tube constituting the upper end of the aforementioned water delivery tube among the two or more aforementioned tubes at any position.

(3) Preferably, in the water discharge device of the above (1) or (2), it is further equipped with: a driving means installed so that the aforementioned tube constituting the lower end of the aforementioned water delivery tube can rotate in a vertical direction relative to the installation surface, and use To make the aforementioned water delivery pipe fall down and stand up.

(4) Preferably, in the water discharge device of the above-mentioned (1) to (3), a camera capable of shooting dynamic images is further provided. gun.

(5) Preferably, in any one of the above-mentioned (1) to (4), the water discharge device is further equipped with a fire point detector, and the aforementioned water discharge device control panel is based on the detection result of the aforementioned fire point detector to make the aforementioned water discharge gun Facing the direction of the fire point.

(6) Preferably in the water discharge device of the above (5), the aforementioned fire point detector is an infrared camera capable of visualizing the infrared rays radiated from objects, and the control panel of the aforementioned water discharge device is based on the image data taken by the aforementioned infrared camera to make The aforementioned water gun is directed towards the place with the highest temperature.

(7) In order to achieve the above-mentioned purpose, the fire extinguishing system of the present invention is used to extinguish the fires that occur in large-scale indoor spaces, including: a fire detector and a water discharge device installed in the aforementioned large-scale space, the aforementioned fire detector is It can detect flames or smoke generated in the aforementioned large-scale space. The aforementioned water discharge device is equipped with: a water supply pipe, which is composed of two or more pipes that are sleeved and slid to expand and contract. It becomes a state of elongation in the vertical direction, and allows the water supplied to the aforementioned pipe to pass from bottom to top; the first valve is to control the inflow of water into the aforementioned water delivery pipe; the second valve is to control the flow of water from the aforementioned water delivery pipe. Outflow; the water discharge gun is installed on the upper side of the aforementioned water delivery pipe, which can release the water passing through the aforementioned water delivery pipe to the outside; and the control panel of the water delivery device controls the opening and closing of the aforementioned first valve, the opening and closing of the aforementioned second valve, and the aforementioned water discharge The direction of the gun; the control panel of the water discharge device makes the first valve open according to the detection result of the fire detector.

(8) Preferably, in the fire extinguishing system of the above (7), at least the aforementioned water supply pipe, the aforementioned second valve, and the aforementioned water discharge gun are arranged in a storage part, and the storage part is arranged on the floor surface that partitions the aforementioned large-scale space under.

(9) Preferably, in the fire extinguishing system of the above (8), the aforementioned storage part is arranged in the center of the aforementioned floor surface, at least the aforementioned water supply pipe, the aforementioned second valve and the aforementioned water discharge gun are stored in the aforementioned storage part, and there are An openable and closable cover that closes the opening of the aforesaid storage portion.

(10) It is preferred that in the fire extinguishing system of any one of the above (7) to (9), the aforementioned water discharge device further includes: a braking mechanism, which is to make the aforementioned water supply pipe at the upper end of the aforementioned two or more aforementioned pipes The slide of the tube stops at any position.

(11) In the fire extinguishing system of any one of the above-mentioned (7) to (10), the aforementioned water discharge device is further equipped with: a driving means installed so that the aforementioned tube constituting the lower end of the aforementioned water delivery tube can be set relative to the Rotate towards the vertical direction to make the aforementioned water delivery pipe fall down and stand up.

(12) In the fire extinguishing system of any one of the above (7) to (11), the aforementioned water discharge device is further equipped with a video camera capable of shooting dynamic images, and the aforementioned video camera is configured so that its optical axis is aligned with the muzzle of the aforementioned water discharge gun. Installed in parallel to the aforementioned water gun.

(13) Preferably, in the fire extinguishing system of any one of the above (7) to (12), the aforementioned water discharge device is further equipped with a fire point detector, and the control panel of the aforementioned water discharge device is based on the detection result of the aforementioned fire point detector. The aforementioned water discharge gun faces the direction of the fire point.

(14) Preferably, in the fire extinguishing system of the above (13), the aforementioned fire point detector is an infrared camera capable of visualizing the infrared rays radiated from objects, and the aforementioned water discharge device control panel is based on the image data captured by the aforementioned infrared camera, so that The aforementioned water gun is directed towards the place with the highest temperature.

The water discharge device and the fire extinguishing system of the present invention bring into play the following technical effects.

●Set up the water discharge gun at a low place that can be easily touched by people, so that it is easy to carry out operations such as inspection of the water discharge gun.

●Water guns can be placed on high places where large-scale spaces can be viewed extensively.

●The discharge range of the water gun is not limited and the performance of the water gun can be effectively played.

●It is possible to protect a large-scale space with a smaller number of water guns than before or a shorter and smaller water gun than before.

●It can be used to reduce the cost of the fire extinguishing system itself to protect a large-scale space and the cost of the inspection of the water gun.

1‧‧‧Water discharge device

2‧‧‧Water gun

10‧‧‧water pump

11‧‧‧Pump starting water tank

12‧‧‧Electric valve (first valve)

20‧‧‧Water delivery pipe

21‧‧‧first section pipe

21A‧‧‧First pipe flange

22‧‧‧Second pipe

22A‧‧‧Second pipe flange

22B‧‧‧The flange of the middle section of the second pipe

23‧‧‧Connection rod

30‧‧‧Stop valve (second valve)

31‧‧‧Ontology

31a‧‧‧Inflow port

31b‧‧‧outlet

31c‧‧‧valve chamber

31d‧‧‧Excretion port

31e‧‧‧first flange

31f‧‧‧second flange

32‧‧‧ball plate

32a‧‧‧through hole

33‧‧‧bar

34‧‧‧Sealing ring

35‧‧‧Solenoid valve

40‧‧‧braking mechanism

41‧‧‧tube

42‧‧‧bar

43‧‧‧brake

50‧‧‧Tipping mechanism

51‧‧‧connecting pipe

51a‧‧‧Inflow port

52‧‧‧Support board

53‧‧‧Moveable joints

60‧‧‧Hydraulic cylinder

70‧‧‧Water gun

71‧‧‧The first connecting pipe

72‧‧‧The first rotating part

73‧‧‧First Motor

74‧‧‧Second connecting pipe

75‧‧‧The second rotating part

76‧‧‧Second motor

77‧‧‧Nozzle

81‧‧‧Video camera

82‧‧‧Infrared Camera (Fire Point Detector)

90‧‧‧Storage Department

91‧‧‧concrete body

92‧‧‧cover

93‧‧‧hinge

94‧‧‧Floor surface

100‧‧‧fire detector

110‧‧‧Automatic fire notification receiver

120‧‧‧Water discharge device control panel

130‧‧‧Pump control panel

140‧‧‧main control panel

141‧‧‧display

142‧‧‧Joystick

143‧‧‧various switches

210‧‧‧Shell

211‧‧‧V liner

212‧‧‧star ring

213‧‧‧female connector

214‧‧‧male connector

215‧‧‧Holder

216‧‧‧Cover

217‧‧‧Degassing nozzle

218‧‧‧Grease nozzle

221‧‧‧Lining ring

222‧‧‧Pipe end sleeve

Fig. 1 is a schematic diagram of a water discharge device according to the first embodiment of the present invention. Fig. 1 (a) shows the state of the water delivery pipe contracted, and Fig. 1 (b) shows the state of the water delivery pipe stretched.

Fig. 2 is a schematic diagram of the water discharge device of the second embodiment of the present invention, Fig. 2 (a) is the state where the water delivery pipe is contracted, and Fig. 2 (b) is the state showing the extension of the water delivery pipe.

Figure 3 shows the first section and the second section of pipes that constitute the above-mentioned water delivery pipe. Figure 3 (a) is an enlarged cross-sectional view that ignores the length of the first section and the second section of pipe, and Figure 3 (b) is The sectional view of the length of the first section and the second section of pipe is not neglected, and Figure 3 (c) is an enlarged section view of the rear end of the second section of pipe.

Fig. 4 is a sectional view of the stop valve installed at the upper end of the water delivery pipe. Fig. 4 (a) shows the closed state of the ball disc, and Fig. 4 (b) shows the open state of the ball disc.

Fig. 5 shows the water discharge gun installed on the upper end of the above-mentioned water delivery pipe, Fig. 5 (a) is a right side view, and Fig. 5 (b) is a top view.

Fig. 6 is a block diagram showing the composition of the fire extinguishing system of the embodiment of the present invention.

Figure 7 (a) is a schematic diagram showing the fire extinguishing range of a known fire extinguishing system equipped with a water gun with a firing distance of 100m. Fig. 7 (b) is a schematic diagram showing the fire extinguishing range of the fire extinguishing system of the present embodiment utilizing the above-mentioned water discharge device with a range distance of 50m.

Figure 8 is a schematic diagram showing the fire extinguishing range of a conventional fire extinguishing system equipped with four water guns with a range of 100m.

Fig. 9 is a schematic diagram showing the fire extinguishing range of the fire extinguishing system of the present embodiment using the above-mentioned water discharge device with a range distance of 100m.

Figure 10 is a schematic diagram showing the fire extinguishing range of the fire extinguishing system of this embodiment using four above-mentioned water discharge devices with a range distance of 50m.

Hereinafter, an embodiment of a fire extinguishing system including the water discharge device of the present invention will be described with reference to the drawings.

<The first embodiment of the water discharge device>

Fig. 1 (a), (b) shows the water discharge device 1 of the first embodiment. The water discharge device 1 mainly becomes the structure in which the water discharge gun 70 is arranged at the upper end of the telescopic water delivery pipe 20 . The water dispensing device 1 of this embodiment is installed in the storage part 90 via the tiltable mechanism 50 and the hydraulic cylinder 60 . The receiving part 90 is buried under the indoor or outdoor floor surface (including the general ground) 94 .

The water delivery pipe 20 is composed of a first section and a second section of pipes 21, 22 which are telescoping and sliding. The lower end of the first tube 21 is connected to the pourable mechanism 50 . The pourable mechanism 50 supports the first section of pipe 21 in a rotatable manner, and allows water to flow into the water delivery pipe 20 from the lower end of the first section of pipe 21 . The second section pipe 22 is subjected to the pressure of the water flowing into the water delivery pipe 20 and slides along the longitudinal direction. Thereby, the entire water supply pipe 20 is changed from a contracted state to an extended state. Furthermore, the water passing through the water delivery pipe 20 is released from the water discharge gun 70 to the outside. The vertical and horizontal angles of the water discharge gun 70 can be controlled by the water discharge device control panel 120 shown in Fig. 6 .

The tiltable mechanism 50 is mainly composed of a connecting pipe 51 , a support plate 52 and a movable joint 53 . The lower end of the above-mentioned first section pipe 21 is connected to the outlet of the connecting pipe 51 . The inflow port of the connecting pipe 51 is connected to the rotatable outflow port of the movable joint 53 . The inlet of the movable joint 53 is fixed to the support plate 52 and connected to a water supply pipe not shown. The support plate 52 is fixed to the concrete body 91 constituting the main body of the receiving portion 90. With the tiltable mechanism 50, the water delivery pipe 20 can rotate vertically relative to the installation surface.

Furthermore, the lower end side of the pipe 41 constituting the braking mechanism 40 is coupled to the piston rod of the hydraulic cylinder 60 . The hydraulic cylinder 60 is fixed to the concrete body 91, and the water delivery pipe 20 and the brake mechanism 40 are brought into a horizontally fallen state and a vertically erected state by expanding and contracting the piston rod.

The accommodating part 90 is comprised by the concrete body 91 provided with the cover 92 which can be opened and closed freely. The concrete body 91 is buried under the indoor or outdoor floor surface (comprising the general ground) 94 . The cover 92 is rotatably mounted on one side of the concrete body 91 via a hinge 93, and is flush with the floor surface 94 in the closed state.

The cover 92 is combined with the above-mentioned first segment tube 21 through the telescopic connecting rod 23 . The connecting rod 23 transmits the action of the water delivery pipe 20 to the cover 92 . Thereby, the cover 92 rotates together with the water pipe 20, and is fully closed when the water pipe 20 falls down horizontally, and fully opened when the water pipe 20 stands vertically.

Thus, in the water discharge device 1 of this embodiment, although the cover 92 is made into the structure which does not require the drive source for opening and closing, it is not limited to this. The cover 92 may be opened and closed by a driving source such as an electric motor or a hydraulic cylinder. Moreover, similarly to the water supply pipe 20, it is good also as the structure which opens and closes the cover 92 by the pipe expanded and contracted by hydraulic pressure.

<The second embodiment of the water discharge device>

Here, the configuration for accommodating the water discharge device 1 under the floor surface 94 is not limited to those shown in Fig. 1 (a) and (b). Figure 2 (a), (b) shows the water discharge device 1 of the second embodiment of the present invention.

As shown in Fig. 2 (a) and (b), a vertically long storage portion 90 can also be buried under the floor surface 94, and in the vertically long storage portion 90, the water discharge device 1 can be vertically erected. status to fix. When adopting this structure, the tiltable mechanism 50 and the hydraulic cylinder 60 of the first embodiment are unnecessary. The lower end of the first section pipe 21 constituting the water supply pipe 20 is connected to the outlet of the connecting pipe 51, and the inlet of the connecting pipe 51 is connected to a water supply pipe not shown.

The water supplied from the water supply pipe passes through the connecting pipe 51 and flows into the water supply pipe 20 from the lower end of the first section pipe 21 . The second pipe 22 slides in the longitudinal direction due to the pressure of the water, and the water delivery pipe 20 as a whole changes from a contracted state to an extended state. The cover 92 of the storage portion 90 is vertically pushed up from the back side to be fully opened while the water supply pipe 20 is in the extended state.

In addition, as described above, the lid 92 may be opened and closed by a driving source such as an electric motor, a hydraulic cylinder, or a hydraulically expandable tube.

<<Water delivery pipe>>

The structure of the water delivery pipe 20 will be described in detail with reference to Fig. 3 (a) to (c). In addition, for convenience of description, the direction of the up, down, left, and right of the water supply pipe 20 is defined in FIG. 3 .

As shown in Fig. 3 (a) and (b), the water delivery pipe 20 is mainly composed of a first section pipe 21 and a second section pipe 22 . The inner diameter of the first section of pipe 21 is approximately equal to the outer diameter of the second section of pipe 22 , and the second section of pipe 22 is sleeved and slid relative to the first section of pipe 21 , so that the water delivery pipe 20 can expand and contract along the long direction.

As shown in FIG. 3( a ), a first-stage pipe flange 21A is provided on the outer peripheral surface of the lower end of the first-stage pipe 21 . The first tube flange 21A is connected to the outflow port of the connecting tube 51 of the above-mentioned tiltable mechanism 50 (refer to Fig. 1 (a), (b)).

A casing 210 is installed on the outer peripheral surface of the upper end side of the first section pipe 21 . The shell 210 is beyond the upper end of the first section of pipe 21 and extends upward. Between the inner peripheral surface of the housing 210 and the outer peripheral surface of the second-section pipe 22 , a plurality of V-pads 211 are stacked and installed. A plurality of V-pads 211 form the sealing surface for the second tube 22 . A star ring 212 is assembled between a plurality of V spacers 211 stacked on each other. The V spacers 211 and the star ring 212 are sandwiched by the female connector 213 and the male connector 214 from up and down. The female connector 213 is held by the holder 215 inserted between the inner peripheral surface of the housing 210 and the outer peripheral surface of the second tube 22 . Moreover, the holder 215 is held inside the cover 216 screwed on the upper end of the casing 210 .

On the side wall of the housing 210 corresponding to the position of the star ring 212, there are two symmetrical through holes. A degassing nozzle 217 is installed in one through hole, and a grease nozzle 218 is installed in the other through hole. The degassing nozzle 217 makes the air in the gap between the inner peripheral surface of the first tube 21 and the outer peripheral surface of the second tube 22 be discharged to the outside of the casing 210 when the second tube 22 slides upward. The grease nozzle 218 is used to inject the grease into the sealing surface formed by the V-pad 211 through the star ring 212 .

On the other hand, a second-stage pipe flange 22A is provided on the outer peripheral surface of the upper end of the second-stage pipe 22 . Moreover, directly below the second-section pipe flange 22A on the outer peripheral surface of the second-section pipe 22 , there is a second-section pipe mid-section flange 22B. The second-stage pipe flange 22A is connected to the inlet of the stop valve 30 shown in Fig. 1 (a), (b). The middle flange 22B of the second pipe 22 is in contact with the cover body 216 of the first pipe 21 to act as a stopper when the second pipe 22 slides downward and the water delivery pipe 20 shrinks.

As shown in FIG. 3 (c), a pipe end sleeve 222 provided with a backing ring 221 is fitted at the lower end of the second section pipe 22 . The backing ring 221 covers the outer peripheral surface of the lower end of the second tube 22 to form a sealing surface relative to the inner peripheral surface of the first tube 21 . The pipe end sleeve 222 is tightly fitted on the inner peripheral surface of the second section pipe 22 to prevent the lining ring 221 from falling off.

Here, in the water discharge device 1 of the present embodiment, the length of the water delivery pipe 20 in the extended state is not particularly limited. For example, the length of the extended state of the water supply pipe 20 may be 10 m or more, allowing a wide view of a large-scale space.

In addition, the number of stages of the pipe constituting the water supply pipe 20 is not limited to the two stages of the present embodiment. For example, by setting the pipe constituting the water supply pipe 20 to three or more stages, the length of the water supply pipe 20 when contracted can be made shorter and the length of the water supply pipe 20 when extended can be made longer.

<<Stop valve>>

As shown in Fig. 1 (a), (b), the inflow port of the stop valve 30 is combined with the second section pipe flange 22A of the second section pipe 22 of the water delivery pipe 20, and the outflow port of the stop valve 30 is combined with the Put the water gun 70. The configuration of the stop valve 30 will be described in detail with reference to Fig. 4 (a), (b). In addition, for the convenience of description, the direction of up, down, left, and right of the stop valve 30 is defined in FIG. 4 .

In Fig. 4 (a), inside the main body 31 of the stop valve 30, an inlet 31a, a valve chamber 31c, and an outlet 31b are formed sequentially from the bottom. A first flange 31e is provided on the outer peripheral surface of the inlet 31a. Moreover, the 2nd flange 31f is provided in the outer peripheral surface of the outlet 31b. The first flange 31e is combined with the second-section flange 22A of the second-section pipe 22 of the water delivery pipe 20 . And the 2nd flange 31f is connected to the said water discharge gun 70. As shown in FIG.

The valve chamber 31c is located between the inflow port 31a and the outflow port 31b, and accommodates the ball disk 32 inside. The ball disk 32 is a valve body formed in the shape of a part of a ball, and a through hole 32a penetrates through the center thereof. As shown in Fig. 4 (a), the diameter of the spherical surface of the ball disk 32 is larger than the diameters of the inlet 31a and the outlet 31b. And, as shown in FIG. 4 (b), the diameter of the through hole 32a of the ball disc 32 is approximately equal to the diameter of the inlet 31a and the outlet 31b.

On the other hand, seal rings 34 are respectively attached to the boundary between the valve chamber 31c and the inlet port 31a and the boundary between the valve chamber 31c and the outlet port 31b. The sealing ring 34 corresponds to the valve seat of the ball disc 32, has an inner diameter approximately equal to that of the inlet 31a and the outlet 31b, and is crimped on the spherical surface of the ball disc 32 or the outer periphery of the opening of the through hole 32a.

The ball disc 32 can rotate 90° up and down with the rod 33 as the center to become the closed state of Fig. 4 (a) or the open state of Fig. 4 (b). In the closed state of Fig. 4 (a), the spherical surface of the ball disc 32 blocks both of the inlet 31a and the outlet 31b, so as to block the water supply from the inlet 31a to the outlet 31b. On the other hand, in the open state of Fig. 4 (b), the through hole 32a of the ball disc 32 makes the inlet 31a communicate with the outlet 31b, so that water can be sent from the inlet 31a to the outlet 31b.

As shown in Fig. 6, the stop valve 30 is opened and closed according to the signal from the control panel 120 of the water discharge device. When the stop valve 30 is closed, the water supply pipe 20 is stretched under the pressure of the water supplied from the water pump 10 to the first and second pipes 21 and 22 . On the other hand, when the stop valve 30 is in an open state, the water passing through the water supply pipe 20 is supplied to the water discharge gun 70 .

Here, as shown in (a) and (b) of FIG. 4, a discharge port 31d is provided on the wall portion of the valve chamber 31c. The drain port 31d is connected to the solenoid valve 35 . The discharge port 31d and the solenoid valve 35 are used to discharge the water accumulated in the valve chamber 31c to the outside. As shown in Figure 6, the electromagnetic valve 35 is opened and closed according to the signal from the control panel 120 of the water discharge device. When the solenoid valve 35 is opened, the water accumulated in the valve chamber 31c is discharged to the outside. In addition, when the solenoid valve 35 is in the closed state, the inside of the valve chamber 31c is closed from the outside. As will be described later, the discharge port 31d and the solenoid valve 35 are also used to discharge the air in the water supply pipe 20 to the outside when the water supply pipe 20 is in a stretched state.

<<braking mechanism>>

As shown in (a) and (b) of FIG. 1 , a brake mechanism 40 is provided on the water supply pipe 20 . The brake mechanism 40 is mainly composed of a pipe 41 , a rod 42 and a brake 43 . The rod 42 is sleeved and slid relative to the tube 41, so that the braking mechanism 40 expands and contracts along the long direction. The stopper 43 is mounted on the upper end of the pipe 41 and has a cylindrical shell with an inner diameter slightly larger than the outer diameter of the rod 42 . A clip not shown is provided in this cylindrical case. The rod 42 is inserted through the cylindrical casing of the stopper 43 .

Such a braking mechanism 40 is installed parallel to the water supply pipe 20 . Specifically, the lower end of the pipe 41 is combined with the lower end of the first section of the pipe 21 of the water delivery pipe 20 . The upper end of the rod 42 is combined with the upper end of the second section of the pipe 22 of the water delivery pipe 20 . Furthermore, as shown in Fig. 1 (a), (b), the front end of the piston rod of the hydraulic cylinder 60 is combined with the lower end side of the pipe 41 in a rotatable manner. With this configuration, the brake mechanism 40 rotates in the vertical direction together with the water supply pipe 20 in the range of 0° to 90°. In addition, the rod 42 slides up and down together with the second pipe 22 of the water supply pipe 20 .

As shown in FIG. 6, the brake mechanism 40 is ON/OFF based on the signal from the control panel 120 of the water discharge device. The brake mechanism 40 clamps the outer peripheral surface of the rod 42 when it is ON. Thereby, the second-section pipe 22 of the water delivery pipe 20 is locked at any protruding amount. With this braking mechanism 40 , the water discharge gun 70 can be positioned at any height within the range of the protrusion of the second section of the pipe 22 .

In addition, when the pipes constituting the water supply pipe 20 have three or more stages, the brake mechanism 40 may also have three or more stages. For example, the brake mechanism 40 of three sections can be constituted by the tube of the first section, the tube of the second section, and the rod of the third section. In this case, in addition to the first stopper that holds the third-stage rod, a second stopper that holds the second-stage pipe may also be provided.

<<Water gun>>

As shown in Figure 5 (a), (b), the water gun 70 is mainly composed of the first connecting pipe 71, the first rotating part 72, the first motor 73, the second connecting pipe 74, the second rotating part 75, the second Motor 76 and nozzle 77 constitute. As mentioned above, the water discharge gun 70 is combined with the outlet of the stop valve 30 . When the stop valve 30 is in an open state, the water passing through the water supply pipe 20 is supplied to the first and second connecting pipes 71 and 74 , and is released from the nozzle 77 to the outside.

One end of the first connecting pipe 71 is combined with the first rotating portion 72 . The first rotating part 72 is driven by the first motor 73 to rotate horizontally. The other end of the first connecting pipe 71 is combined with the second rotating portion 75 . The second rotating portion 75 is combined with one end side of the second connecting pipe 74 . The second rotating part 75 is driven by the second motor 76 to rotate vertically. The other end side of the second connecting pipe 74 is combined with the nozzle 77 .

As shown in FIG. 6 , the first and second motors 73 and 76 operate according to the signal sent from the water discharge device control panel 120 to drive the first and second rotating parts 72 and 75 . As shown in Fig. 5 (b), by driving the first rotating part 72, the nozzle 77 of the water gun 70 can rotate 180° to the left and 180° to the right, totaling 360° horizontally. On the other hand, as shown in Fig. 5 (a), by driving the second rotating part 75, the nozzle 77 of the water gun 70 can be rotated 90° upward and 30° downward, totaling 120° vertically. °.

<<Video camera>>

Here, as shown in Fig. 5 (a), (b), a video camera 81 is installed on the nozzle 77 of the water discharge gun 70 . The video camera 81 faces the same direction as the nozzle 77, and rotates together with the nozzle 77 in the vertical direction and the horizontal direction. As shown in FIG. 6 , the image data captured by the video camera 81 is transmitted to the main control panel 140 through the water discharge device control panel 120 .

The main control panel 140 is installed in a place away from the water discharge device 1, such as a disaster prevention center of a facility to be protected. The main control panel 140 is equipped with a display 141 , a joystick 142 and various switches 143 . The main control panel 140 is to display the image captured by the video camera 81 on the display 141 . Manually operate the rocker 142 while viewing this image, so that the nozzle 77 of the water gun 70 can be correctly directed towards the target location (such as a fire point).

<<Infrared camera>>

Furthermore, as shown in Fig. 5 (b), an infrared camera 82 (ignition point detector) is installed at the nozzle 77 of the water discharge gun 70 . The infrared camera 82 takes images (thermal imaging) that visualize changes in the amount of infrared rays emitted by objects. The image data taken by the infrared camera 82 is transmitted to the main control panel 140 through the water discharge device control panel 120 .

The water discharge device control panel 120 is based on the image data taken by the infrared camera 82, detects the place with the highest temperature (for example, a fire point), and automatically controls the nozzle 77 of the water discharge gun 70 towards its place. That is, the control panel 120 of the water discharge device analyzes the image data captured by the infrared camera 82 to specify the xy coordinates of the place with the highest temperature. Next, the control panel 120 of the water discharge device drives the first and second motors 73, 76 so that the nozzle 77 faces the xy coordinates of the place with the highest temperature.

On the other hand, the main control panel 140 displays the image captured by the infrared camera 82 on the display 141 . By manually operating the rocker 142 while viewing this image, the nozzle 77 of the water gun 70 can be correctly directed to the place with the highest temperature.

<Fire Extinguishing System>

Next, a fire extinguishing system using the water discharge device 1 shown in Fig. 1 (a), (b) will be described with reference to the drawings.

Fig. 6 shows the overall structure of the fire extinguishing system of this embodiment. In Fig. 6, the fire extinguishing system of this embodiment is suitable for spaces with high roofs and large scales such as stadiums or large exhibition facilities. The fire extinguishing system of this embodiment includes water pump 10, pump starting water tank 11, electric valve 12, fire detector 100, automatic A fire alarm receiver 110, a water discharge device control panel 120, a pump control panel 130, a main control panel 140, and a water storage tank not shown in the figure.

The water discharge device 1 is installed in the storage part 90 buried under the floor surface 94 that partitions a large-scale space (refer to FIG. 1 (a)). For example, if the large-scale space of the protected object is a stadium, the water discharge device 1 is arranged under the ground of the stadium. Furthermore, for example, if the large-scale space of the protected object is a large-scale exhibition facility, the water discharge device 1 is arranged on the floor surface belonging to the exhibition space. As mentioned above, the water delivery device 1 is controlled by the water delivery device control panel 120 .

The water pump 10 is used to supply water to the water delivery pipe 20 of the water delivery device 1 . The inlet of the water pump 10 is connected to a water suction pipe (not shown). The suction port of this water suction pipe is poured into the water accumulated in the water storage tank not shown in the figure. A bottom valve with a check valve structure is installed in the water suction pipe so that the water sucked into the water suction pipe and the water pump 10 will not flow back to the water storage tank.

The water tank 11 for starting the pump is used to fill the pump chamber of the water pump 10 with water constantly. The water tank 11 for starting the pump is arranged at a position higher than the water pump 10 . The water system in the pump starting water tank 11 flows into the pump chamber of the water pump 10 by gravity, so that the pump chamber is constantly filled with water. Thereby, the water pump 10 can be started at any time.

The running state of the water pump 10 is controlled by the pump control panel 130 . When the water pump 10 is activated by the pump control panel 130, the water flowing into the pump chamber is continuously pushed out by the impeller (not shown). The water continuously pushed out by the water pump 10 is supplied to the water delivery pipe 20 of the water delivery device 1 through the above-mentioned water supply pipe.

Electric valve 12 is combined in the way of above-mentioned water supply pipe. This water supply pipe is connected to the inflow port of the movable joint 53 (refer to FIG. 1 (a)) of the tiltable mechanism 50 constituting the water discharge device 1 . The electric valve 12 controls the supply of water from the water pump 10 to the water delivery pipe 20 , and is opened and closed according to the signal from the control panel 120 of the water discharge device.

A plurality of fire detectors 100 are installed in the large-scale space of the protected object. The fire detector 100 is configured to sense the occurrence of a fire based on any one of heat, smoke, ultraviolet rays, or infrared rays. The fire detector 100 transmits a fire signal when detecting the occurrence of a fire. This fire signal is received by the automatic fire notification receiver 110. The automatic fire alarm receiver 110 transmits the alarm signal to the water discharge device control panel 120 and the main control panel 140 according to the fire signal.

As mentioned above, the water dispensing device 1 of this embodiment can specify the position of the ignition point by the infrared camera 82 installed on the water dispensing gun 70 . Therefore, it is sufficient that the fire detector 100 has at least a performance capable of detecting the occurrence of a fire. The fire signal of the fire detector 100 becomes a trigger signal to make the water dispensing device control panel 120 start the water dispensing device 1 . The control panel 120 of the water discharge device receives the transfer signal from the automatic fire notification receiver 110, activates the water discharge device 1, drives the water discharge gun 70 in the horizontal direction and vertical direction, and uses the infrared camera 82 to specify the position of the fire point .

In addition, the fire detector 100 can also be an infrared camera that can drive itself to scan a large-scale space. At this time, the water discharge device control panel 120 controls the position of the fire point according to the image data captured by the infrared camera and makes the nozzle 77 of the water discharge gun 70 face the fire point.

As mentioned above, the main control panel 140 is installed in a place away from the water discharge device, such as a disaster prevention center of a facility to be protected. The main control panel 140 is used to manually operate the fire extinguishing system of this embodiment, and is equipped with the above-mentioned display 141 , joystick 142 and various switches 143 . The main control panel 140 is electrically connected to the water discharge device control panel 120 and the pump control panel 130, so that these control panels 120, 130 can be manually controlled. For example, by operating the main control panel 140, the setting of the fire extinguishing system of this embodiment can be switched to "automatic operation mode" or "manual operation mode".

When the fire extinguishing system of this embodiment is set to "automatic operation mode", the control panel 120 of the water dispensing device that receives the transfer signal executes a series of controls of the water dispensing device 1 . And, the water discharge device control panel 120 receiving the transfer signal transmits the instruction signal to the pump control panel 130 . The pump control panel 130 that receives the command signal executes a series of controls on the water pump 10 .

On the other hand, when the fire extinguishing system of this embodiment is set to the "manual operation mode", the main control panel 140 is operated by a person due to the notification of the transfer signal from the automatic fire notification receiver 110 . The main control panel 140 transmits the command signal corresponding to the human operation to the water discharge device control panel 120 and the pump control panel 130 . The water dispensing device control panel 120 executes the control of the water dispensing device 1 according to the command signal from the main control panel 140 . Moreover, the pump control panel 130 executes the control of the water pump 10 according to the instruction signal from the main control panel 140 .

<Control details of water discharge device>

Next, details of the control of the water discharge device 1 by the water discharge device control panel 120 and the pump control panel 130 will be described with reference to the drawings. In addition, the following description is about the control when the fire extinguishing system of this embodiment is set to "automatic operation mode".

As shown in FIG. 1 (a), the water discharge device 1 is installed in the storage part 90 buried under the floor surface 94 that partitions a large-scale space. The water discharge device 1 in the storage portion 90 is set in a state where the water supply pipe 20 is shrunk and then collapsed.

As shown in FIG. 6, a plurality of fire detectors 100 are arranged in various parts of the large-scale space, and constantly monitor the occurrence of fire in the entire large-scale space. When any one of the fire detectors 100 detects a fire, the fire detector 100 transmits a fire signal to the automatic fire alarm receiver 110 . The automatic fire alarm receiver 110 that receives the fire signal transmits the alarm signal to the control panel 120 and the main control panel 140 of the water discharge device. The alarm signal includes information for specifying the fire detector 100 that detects the occurrence of a fire.

The water-discharging device control panel 120 that receives the transfer signal drives the hydraulic cylinder 60 to make the water-discharging device 1 shown in Fig. 1 (a) stand up. At this moment, the water delivery pipe 20 of the water delivery device 1 is still in the original shrinkage state.

Next, the control panel 120 of the water discharge device makes the electric valve 12 open and the electromagnetic valve 35 of the stop valve 30 open. Then, the water discharge device control panel 120 sends a command signal to the pump control panel 130 .

The pump control panel 130 that receives the instruction signal starts the water pump 10 . The water pump 10 sucks the water from the water storage tank through the water suction pipe, and continuously pushes the water flowing into the pump chamber to the outside with the impeller. The water system that is pushed out continuously by the water pump 10 is sent to the water supply pipe that is combined with the electric valve 12 on the way. Since the electric valve 12 is in an open state, the water discharged to the water supply pipe passes through the movable joint 53 and the connecting pipe 51 of the tilting mechanism 50 and is supplied to the water supply pipe 20 in a contracted state.

As water is supplied into the water delivery pipe 20, the air in the water delivery pipe 20 is discharged from the discharge port 31d of the stop valve 30 (refer to the gray arrow in FIG. 4(a)). As a result, the inside of the water supply pipe 20 in the contracted state is gradually filled with the supplied water. Then, when all the air in the water supply pipe 20 is exhausted to the outside, the water supplied into the water supply pipe 20 flows out from the discharge port 31d of the stop valve 30 . The water discharge device control panel 120 closes the solenoid valve 35 after a predetermined time has elapsed since the solenoid valve 35 of the stop valve 30 was opened.

When water is continuously supplied into the contracted water pipe 20 in this way, the second-stage pipe 22 (refer to FIG. 3(b)) constituting the water pipe 20 slides upward under the pressure of the water supplied into the pipe. Thereby, the water supply pipe 20 as a whole becomes an extended state. And, when the water delivery pipe 20 is in a fully stretched state, the water delivery device control panel 120 activates the brake mechanism 40 to fix the second pipe 22 of the water delivery pipe 20 . Thereby, the state in which the water supply pipe 20 is fully extended is maintained.

The water discharge device control panel 120 drives the first and second motors 73, 76, so that the nozzle 77 of the water discharge gun 70 faces the area monitored by the fire detector 100 for detecting the occurrence of a fire. Then, the water discharge device control panel 120 makes the infrared camera 82 take pictures of the area. The water discharge device control panel 120 analyzes the image data captured by the infrared camera 82 to determine the xy coordinates of the place with the highest temperature (fire point). And, the water discharge device control panel 120 is to drive the first and second motors 73, 76, so that the direction of the nozzle 77 is aimed at the xy coordinate of the place with the highest temperature. Afterwards, the water discharge device control panel 120 makes the ball disc 32 of the stop valve 30 open (refer to FIG. 4 (b)). Thereby, a large amount of water will be discharged directly from the nozzle 77 of the water discharge gun 70 to the place with the highest temperature.

<Comparison with conventional technology>

Next, a comparison between the fire extinguishing system of this embodiment and a conventional fire extinguishing system will be described with reference to FIGS. 7 to 10 .

<<Fire extinguishing range and performance of water gun>>

Figure 7 (a) is a schematic diagram showing the fire extinguishing range of a known fire extinguishing system equipped with a water gun with a firing distance of 100m. Fig. 7 (b) is a schematic diagram showing the fire extinguishing range of the fire extinguishing system of the present embodiment using the aforementioned water delivery device with a range distance of 50m.

The squares in Fig. 7 (a), (b) show the floor area of the large-scale space of 100m x 100m= ^10000m2 . And, the X mark indicated by the symbol "2" in Fig. 7 (a) shows the installation position of the known water discharge gun. Similarly, the symbol "1" in Fig. 7(b) indicates the installation position of the water dispensing device 1 (water dispensing gun 70) of the present embodiment.

As shown in Fig. 7 (a), the conventional fire extinguishing system is that the long-range water gun 2 is arranged on the wall (patent document 2). When protecting a large-scale space of 10,000m2 with one water gun ² , a water gun 2 with a range of 100m is installed on any one of the four walls separating the large-scale space.

The theoretical fire extinguishing range of the water gun 2 with a range of 100m in the circle drawn by the dotted line in Fig. 7 (a). The gray part among Fig. 7 (a) is the actual fire extinguishing range of the water gun ² in the large-scale space of 10000m2.

Because the known fire extinguishing system is that the water gun 2 is arranged on the wall, it is impossible to discharge water to the back side of the water gun 2 . Therefore, the actual water release range of the water gun 2 is limited to less than half of the theoretical water release range. In this way, in the known fire extinguishing system, the performance of the long-range water discharge gun 2 cannot be effectively brought into play.

On the other hand, as shown in Fig. 7 (b), the fire extinguishing system of present embodiment is the composition that the water discharge device 1 is set in the center of the floor surface that divides the large-scale space. When protecting a large-scale space of ^10000m2 with a water discharge device 1, it is sufficient to install a water discharge gun 70 with a range of 50m in the water discharge device 1.

The theoretical fire extinguishing range of the water gun 70 with a range of 50m in the circle drawn by the dotted line in Fig. 7 (b). The gray part among Fig. 7 (b) is the actual fire extinguishing range of the water gun 70 in the large-scale space of ^10000m2 .

The fire extinguishing system of present embodiment is the composition that the water discharge device 1 is set in the center of the floor surface, so the water discharge gun 70 that is installed here constitutes and can discharge water toward the omnidirectional direction of 360 °. Therefore, the actual discharge range of the water gun 70 is consistent with the theoretical discharge range.

In this way, according to the fire extinguishing system of the present embodiment, the water discharge range of the water discharge gun 70 will not be limited, and the performance of the water discharge gun 70 can be effectively brought into play. Moreover, a large-scale space can be protected by using a water gun 7 with a shorter range and a smaller size than the conventional one. Furthermore, since the water gun 70 has a short firing range and a small size, the cost of the fire extinguishing system itself can be reduced.

<<Application to Dome Stadium>>

Fig. 8 is a schematic diagram showing the installation position of the water nozzle 2 and the fire extinguishing range when the known fire extinguishing system is applied to the stadium. In the 8th figure, the arrow B showing the range distance of 100m of the water gun 2 is described as the same length as the arrow A of the two wings of the baseball field (97.534m≒100m). The grayscale part in the 8th figure shows the fire extinguishing range of the four water guns 2 .

As shown in Fig. 8, the known fire extinguishing system is that the water nozzle 2 is arranged on the wall, so water cannot be discharged to the back side of the water nozzle 2. Therefore, in order to protect the full range of the stadium, four water guns 2 with a range of 100m must be set.

On the other hand, Fig. 9 is a schematic diagram of the installation position and fire extinguishing range of the water discharge device 1 (water discharge gun 70) when the fire extinguishing system of this embodiment is applied to a stadium. The arrow B showing the range of 100m of the water gun 70 in Fig. 9 is drawn as the same length as the arrow A showing the two wings (about 100m) of the baseball field. The grayscale part in the 9th figure shows the fire extinguishing range of a water gun 70 .

The fire extinguishing system of the present embodiment is that the water discharge device 1 is arranged at the center of the floor surface, so the water discharge gun 70 installed here can discharge water in all directions of 360°. Therefore, in order to protect the full range of the stadium, it is enough to set up a water gun 70 with a range of 100m.

Finally, Fig. 10 is a schematic diagram showing the installation position and fire extinguishing range of the water discharge device 1 when the range distance of the water discharge gun 70 is 50m in the fire extinguishing system of the present embodiment. When the range distance of the water discharge gun 70 is 50m, four water discharge devices 1 are set to protect the whole of the arena.

The arrow B showing the range of 50m of the water gun 70 in Fig. 10 is drawn as half the length of the arrow A showing the two wings (about 100m) of the baseball field. The grayscale part in the 10th figure shows the fire extinguishing range of the four water guns 70 .

As shown in Fig. 10, according to the fire extinguishing system of this embodiment, compared with the conventional fire extinguishing system shown in Fig. 8, the entire arena stadium can be protected by the water gun 70 with half the shooting distance. Furthermore, since the four water discharge guns 70 are all short-range and small in size, the cost of the fire extinguishing system itself is lower than before.

<Effect>

As shown in Fig. 1 (a), the water dispensing device 1 of the present embodiment can be provided with a water dispensing gun 70 at a low place that people can easily touch, so operations such as inspection of the water dispensing gun 7 can be easily performed. That is, in order to carry out operations such as the inspection of the water discharge nozzle 70, it is completely unnecessary to use a high-altitude operation vehicle, assemble a platform, etc., and the cost of operations such as the inspection of the water discharge nozzle 70 can be greatly reduced.

As shown in Fig. 1 (b), when a fire breaks out in a large-scale space, the water supply pipe 20 as a whole becomes an extended state, and the water discharge gun 70 installed at a low place can be arranged where the large-scale space can be widely viewed. heights.

As shown in Fig. 7 (b), Fig. 9 and Fig. 10, the fire extinguishing system of this embodiment is installed in the water discharge device 1. The range of the water discharge gun 70 is not limited and can be directed in all directions of 360°. Turn on the water. Thereby, the performance of the water discharge gun 70 can be effectively brought into play, and a large-scale space can be protected by a smaller number of water discharge guns 70 than in the past or a smaller and shorter range of water discharge guns 70 than in the past. Therefore, according to the water discharge device 1 of the present embodiment, the cost of the fire extinguishing system itself for protecting a large-scale space can be greatly reduced.

<Use of the present invention>

The application of the water discharge device and fire extinguishing system of the present invention is not limited to the protection of spaces with high roofs and large scales. Because the water discharge device of the present invention is arranged in the storage part buried under the floor surface (including the general ground), it will not become an obstacle for people and will not damage the landscape when there is no fire. With this feature, the water discharge device of the present invention can be applied to, for example, the protection of buildings designated as important cultural properties, the sprinkling of lawn squares in parks with a large footprint, and the like.

1‧‧‧Water discharge device

20‧‧‧Water delivery pipe

21‧‧‧first section pipe

22‧‧‧Second pipe

23‧‧‧Connection rod

30‧‧‧Stop valve (second valve)

40‧‧‧braking mechanism

41‧‧‧tube

42‧‧‧bar

43‧‧‧brake

50‧‧‧Tipping mechanism

51‧‧‧connecting pipe

52‧‧‧Support board

53‧‧‧Moveable joints

60‧‧‧Hydraulic cylinder

70‧‧‧Water gun

71‧‧‧The first connecting pipe

90‧‧‧Storage Department

91‧‧‧concrete body

92‧‧‧cover

93‧‧‧hinge

94‧‧‧Floor surface

Claims (14)

A water discharge device, installed indoors or outdoors, comprising: a water supply pipe, which is composed of two or more pipes that are sleeved and slid to expand and contract, and become vertically elongated under the pressure of the water supplied to the above-mentioned pipes , and the water supplied to the aforementioned pipes can pass from bottom to top; the valve is installed in the aforementioned pipes constituting the upper end of the aforementioned water delivery pipes among the aforementioned two or more aforementioned aforementioned pipes, and controls the flow of water from the aforementioned water delivery pipes; The water discharge gun is installed on the upper side of the water supply pipe, and when the valve is opened, the water passing through the water supply pipe can be discharged to the outside; and the control panel of the water discharge device is used to control the opening and closing of the aforementioned valve and the direction of the water discharge nozzle . The water discharge device as described in item 1 of the scope of the patent application further includes: a brake mechanism that stops the sliding of the aforementioned pipe constituting the upper end of the aforementioned water delivery pipe at any position. The water discharge device as described in item 1 or 2 of the scope of the patent application further includes: a tiltable mechanism installed so that the aforementioned tube constituting the lower end of the aforementioned water delivery tube can rotate in a vertical direction relative to the installation surface; and an oil pressure The cylinder is used to make the aforementioned water delivery pipe fall down and stand up; the control panel of the aforementioned water discharge device controls the drive of the aforementioned hydraulic cylinder. The water discharge device described in item 1 or 2 of the scope of the patent application further has a camera capable of shooting dynamic images, and the aforementioned camera is installed on the aforementioned water discharge gun in such a way that its optical axis is parallel to the muzzle of the aforementioned water discharge gun. The water discharge device described in item 1 or 2 of the scope of the patent application is further provided with a fire point detector, and the control panel of the water discharge device is based on the detection result of the fire point detector to make the water discharge gun point to the direction of the fire point. The water discharge device as described in item 5 of the scope of the patent application, wherein the aforementioned fire point detector is an infrared camera capable of visualizing the infrared rays radiated from objects, and the control panel of the aforementioned water discharge device is based on the image data captured by the aforementioned infrared camera. The aforementioned water gun is directed towards the place with the highest temperature. A fire extinguishing system, which is used to extinguish a fire that occurs in a large-scale indoor space, includes: a fire detector and a water discharge device installed in the large-scale space, and the fire detector can detect fires that occur in the large-scale space. For the flame or smoke generated, the aforementioned water discharge device is equipped with: the water supply pipe is composed of two or more pipes that are sleeved and slid to expand and contract, and it is stretched in the vertical direction by the pressure of the water supplied to the aforementioned pipe. And the water supplied to the aforementioned pipe can pass from bottom to top; the first valve is to control the inflow of water to the aforementioned water delivery pipe; the second valve is to be installed in the aforementioned two or more aforementioned pipes to form the aforementioned water delivery pipe The aforementioned pipe at the upper end controls the flow of water from the aforementioned water delivery pipe; the water discharge gun is arranged on the upper side of the aforementioned water delivery pipe, and when the aforementioned second valve is in an open state, the water passing through the aforementioned water delivery pipe can be released to the outside; and The control panel of the water discharge device controls the opening and closing of the first valve, the opening and closing of the second valve, and the direction of the water discharge gun; the control panel of the water discharge device controls the opening and closing of the first valve according to the detection result of the fire detector. state. The fire extinguishing system described in item 7 of the scope of the patent application, wherein at least the aforementioned water supply pipe, the aforementioned second valve, and the aforementioned water discharge gun are arranged in the storage part, and the aforementioned storage part is arranged on the floor surface that separates the aforementioned large-scale space under. The fire extinguishing system as described in item 8 of the scope of the patent application, wherein the aforesaid accommodating part is arranged in the center of the aforesaid floor surface, at least the aforesaid water supply pipe, the aforesaid second valve and the aforementioned water discharge gun are accommodated in the aforesaid accommodating part, and there are An openable and closable cover that closes the opening of the aforesaid storage portion. The fire extinguishing system as described in any one of items 7 to 9 of the scope of the patent application, wherein the water discharge device further includes: a braking mechanism that stops the sliding of the aforementioned pipe constituting the upper end of the aforementioned water delivery pipe at any position. The fire extinguishing system as described in any one of items 7 to 9 of the scope of the patent application, wherein the aforementioned water discharge device is further provided with: a tiltable mechanism installed so that the aforementioned tube constituting the lower end of the aforementioned water delivery tube can be placed relatively Rotate in the vertical direction; and the hydraulic cylinder is used to make the aforementioned water delivery pipe fall down and stand up; the control panel of the aforementioned water discharge device controls the drive of the aforementioned hydraulic cylinder. The fire extinguishing system as described in any one of items 7 to 9 of the scope of patent application, wherein the water discharge device is further equipped with a camera capable of shooting dynamic images, and the camera is positioned so that its optical axis is parallel to the muzzle of the water discharge gun The method is installed on the aforementioned water gun. The fire extinguishing system as described in any one of items 7 to 9 of the scope of the patent application, wherein the water discharge device is further equipped with a fire point detector, and the control panel of the water discharge device is based on the detection result of the fire point detector to make the water discharge Point the gun in the direction of the point of fire. The fire extinguishing system described in item 13 of the scope of the patent application, wherein the aforementioned fire point detector is an infrared camera capable of visualizing infrared rays radiated from objects, and the control panel of the aforementioned water discharge device is based on the image data captured by the aforementioned infrared camera so that The aforementioned water gun is directed towards the place with the highest temperature.

Images