JP7109988B2 - High altitude fire extinguishing system for low-rise buildings - Google Patents

Description

The present invention relates to a portable fire extinguishing system for low-rise buildings that can discharge water from a relatively high place, particularly for small low-rise buildings that are suitable for extinguishing fires that occur in urban areas where buildings are densely packed and roads are narrow. It relates to a fire extinguishing system for high places.

The fire that broke out in Itoigawa City, Niigata Prefecture on December 22, 2016 was the first large-scale fire in an urban area in 40 years since the big fire in Sakata City in 1976. The firefighting headquarters and fire brigade that have jurisdiction over Itoigawa City took part in the firefighting activities, and the neighboring firefighting headquarters cooperated in the firefighting activities. The main equipment of the firefighting headquarters was an ordinary firefighting pump car, and the main equipment of the fire brigade was a transportable fire pump loading vehicle. It took about 30 hours from the start of the fire until it was extinguished, and the burned area reached about ^40,000m2 .

JP-A-2002-355326 Japanese Patent Application Laid-Open No. 2002-360724

<Problems with Ordinary Fire Pump Vehicles and Transportable Fire Pump Loaded Vehicles>
The disaster area in Itoigawa City was densely packed with wooden buildings and had narrow roads. The fire, which broke out under strong winds, spread at the same time as sparks and embers scattered from the building where the fire originated and spread to the roofs and upper parts of surrounding buildings. The main equipment of ordinary fire pump vehicles and portable fire pump trucks is configured to discharge water pushed out by the water pump from a hose on hand, so the fire point is in a high place where firefighters and fire brigade members cannot approach. In some cases, water cannot be sprayed directly from the ground toward the fire point. Direct water spraying refers to a method of spraying stick-shaped water that is not diffused directly onto burning materials, and is the most effective way to use water against fires.

Therefore, if the fire point is on the second floor or higher of the building and firefighters or firefighters cannot approach it due to hot air or obstacles, water cannot be directly discharged to the fire point. In such a case, there is no choice but to indirectly spray water from the ground to the fire point. Indirect water spraying is, for example, a method in which water is sprayed onto the walls or ceiling of the fire chamber, and the bouncing water is indirectly applied to the combusting materials, or a method of spraying water into the fire chamber to improve the thermal environment around the combusting materials. Say. However, with indirect fire extinguishing from the ground, it is difficult to efficiently extinguish fires on the second floor or higher of a building. In addition, it is not possible to effectively prevent the spread and expansion of fires that occur in urban areas with narrow roads.

<Problems with high-altitude water cannons>
On the other hand, for large-scale fires such as petroleum complexes, high-altitude water cannon trucks are used (see Patent Documents 1 and 2). The high-altitude water cannon truck is based on a large vehicle with a standard load capacity of 8 to 10 tons, and has the ability to discharge a large amount of water in excess of 3,000 liters per minute from a height of 20m or more. However, the high-altitude water cannon cannot drive into urban areas where buildings are densely packed and roads are narrow. The reason for this is that large-scale high-altitude water-cannon vehicles require outriggers to extend outward from the vehicle body and be grounded with jacks, and can only be entered on roads with a width of 5 m or more. In addition, a water tower with a height of 20 m or more and a water discharge rate of more than 3000 liters per minute are excessive performances for extinguishing fires in general buildings such as shops and houses. It's not realistic for a group to equip.

<Purpose of Invention>
SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and provides a simple and small high-place fire extinguishing system for low-rise buildings suitable for extinguishing fires that occur in urban areas where buildings are densely packed and roads are narrow. for the purpose.

(1) In order to achieve the above object, the high-place fire extinguishing system for low-rise buildings of the present invention is in a substantially vertical state, a water pipe capable of passing supplied water from bottom to top; A valve provided on the upper side of the water pipe and in a closed state that can stop the flow of water passing through the water pipe; a water gun that can be discharged to the outside, wherein the water pipe is composed of two or more pipes that telescopically slide and expand and contract, and when the valve is closed, The water gun is extended by the pressure of the water supplied to the water gun, and the water gun can be remotely controlled in vertical and horizontal angles by a water gun operation panel.

(2) Preferably, in the high-altitude fire extinguishing system for low-rise buildings of (1) above, the high-altitude fire extinguishing system for low-rise buildings includes a vehicle loaded with a pump, the water pipe is loaded on the vehicle, and approximately It is configured to be in a vertical state and allow the water supplied from the pump to pass from bottom to top.

(3) Preferably, in the high-place fire extinguishing system for low-rise buildings of (2) above, the vehicle has a standard loading capacity of 3 tons or less.

(4) Preferably, in the high-place fire extinguishing system for a low-rise building of (2) or (3) above, a tilting mechanism installed on the ceiling of the vehicle and capable of rotating in the vertical direction is further provided, A lower side of the water pipe is coupled to a tilting mechanism, and the water pipe is configured to be in a tilted state and an upright state on the ceiling of the vehicle.

(5) Preferably, the high-place fire extinguishing system for a low-rise building of (4) above further comprises a hydraulic cylinder for setting the water pipe to the collapsed state and the raised state.

(6) Preferably, in the high-place fire extinguishing system for low-rise buildings of (4) or (5), the length of the water pipe in the extended state is 10 m or less.

(7) Preferably, in the high-place fire extinguishing system for low-rise buildings according to any one of the above (1) to (6), among the two or more pipes, the pipe constituting the tip of the water pipe can be slid arbitrarily. The configuration is further provided with a brake mechanism for stopping at the position.

(8) Preferably, in the high-place fire extinguishing system for low-rise buildings according to any one of the above (1) to (7), further comprising a camera capable of capturing moving images, and a display for displaying images captured by the camera. wherein the camera is attached to the water cannon so that its optical axis is parallel to the muzzle of the water cannon; However, the vertical and horizontal angles of the water gun can be controlled remotely.

(9) Preferably, the high-place fire extinguishing system for a low-rise building according to any one of (1) to (8) above further includes an infrared camera capable of visualizing infrared rays emitted from an object.

(10) Preferably, in the high-place fire extinguishing system for a low-rise building of (9) above, a control unit for controlling the vertical and horizontal angles of the water cannon is provided, and the control unit controls the measurement result of the infrared camera. Based on, the water gun is directed to the place where the temperature is the highest to discharge water.

(11) Preferably, the high-place fire extinguishing system for low-rise buildings according to any one of (1) to (10) above further comprises a control unit for controlling the vertical and horizontal angles of the water gun, wherein the control unit , according to a program, it automatically swings at least in the horizontal direction and discharges water to a predetermined range.

INDUSTRIAL APPLICABILITY The high-place fire extinguishing system for low-rise buildings of the present invention has a very simple structure in which the water pipe is extended by the pressure of water used for fire extinguishing. A simple high-altitude fire extinguishing system for low-rise buildings can be loaded on a small vehicle with a standard load capacity of 3 tons or less. It is possible to spray water directly on the fire point in According to such a low-rise building high-place fire extinguishing system of the present invention, it is possible to effectively prevent the spread of flying fire on the roof and upper part of the building. In addition, the high-place fire extinguishing system for low-rise buildings of the present invention can be manufactured based on an ordinary fire pump vehicle or a portable fire pump loading vehicle with a standard load capacity of 3 tons or less, and can be used to extinguish fires that occur in urban areas. Equipped with water discharge performance suitable for Therefore, the high-place fire extinguishing system for low-rise buildings of the present invention can be an effective main piece of equipment for firefighting headquarters and firefighting teams of local governments.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a left side view of the high-place fire extinguishing system for low-rise buildings according to the first embodiment of the present invention, Fig. 1(a) showing a contracted state of the water pipe, and Fig. 1(b) showing an extended state of the water pipe; . Fig. 2(a) is a right side view of the high-place fire extinguishing system for low-rise buildings, Fig. 2(a) shows a state in which the water pipe is contracted, and Fig. 2(b) shows a state in which the water pipe is extended. Fig. 3(a) is a plan view of the high-place fire extinguishing system for low-rise buildings, Fig. 3(a) shows a state in which the water pipe is contracted, and Fig. 3(b) shows a state in which the water pipe is extended. FIG. 4A is a front view of the high-place fire extinguishing system for low-rise buildings, FIG. 4A shows a state in which the water pipe is contracted, and FIG. 4B shows a state in which the water pipe is extended. Fig. 5(a) is a rear view of the high-place fire extinguishing system for low-rise buildings, Fig. 5(a) shows a state in which the water pipe is contracted, and Fig. 5(b) shows a state in which the water pipe is extended. It is the elements on larger scale which show the back surface of the said high-place fire-extinguishing system for low-rise buildings. Fig. 7(a) is an enlarged sectional view omitting the length of the first and second stage pipes, and Fig. 7(b) is the first stage pipe. and a cross-sectional view in which the length of the second-stage pipe is not omitted, and FIG. 7(c) is an enlarged cross-sectional view of the rear end portion of the second-stage pipe. It is sectional drawing of the stop valve attached to the upper end of the said water pipe, Fig.8 (a) shows the closed state of a ball disk, FIG.8(b) shows the open state of a ball disk. Fig. 9(a) is a right side view and Fig. 9(b) is a plan view showing a water gun attached to the upper end of the water pipe. It is a block diagram which shows the structure of the said high-place fire extinguishing system for low-rise buildings. It is a block diagram which shows the structure of the high-place fire extinguishing system for low-rise buildings which concerns on 2nd Embodiment of this invention.

<First embodiment>
A high-place fire extinguishing system for low-rise buildings according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 10. FIG.

<<Overview of high-altitude fire extinguishing system for low-rise buildings>>
1 to 5 show the appearance of the high-place fire extinguishing system for low-rise buildings according to the first embodiment. A high-place fire extinguishing system 1 for a low-rise building mainly has a structure in which a water pipe 20 is mounted on the ceiling of a vehicle 10 and a water gun 70 is provided at the upper end of the water pipe 20 .

A water pump 12 and a vacuum pump 12a (see FIG. 10) are mounted inside the body of the vehicle 10 . The vacuum pump 12 a sucks air from the inside of the water pump 12 and the suction pipe, sucks in natural water, and makes it flow into the water pump 12 . After that, the vacuum pump 12a is stopped. The water pump 12 continuously pushes out the water that has flowed into the interior to the exterior by means of an impeller (not shown). Water continuously pushed out by the water pump 12 is supplied to the inside of the water pipe 20 on the ceiling of the body.

A hydraulic cylinder 60 provided on the ceiling of the body of the vehicle 10 causes the water pipe 20 to move from a horizontally fallen state to a vertically raised state. The water pipe 20 is composed of first-stage and second-stage pipes 21 and 22 that extend and contract by telescoping. The second stage pipe 22 slides upward under the pressure of water supplied from the water pump 12 . As a result, the entire water pipe 20 is extended.

The water that has passed through the water pipe 20 is discharged from the water gun 70 to the outside. As shown in FIG. 5 , a water gun control panel 113 is provided on the rear surface 110 of the vehicle 10 . The vertical and horizontal angles of the water cannon 70 can be remotely controlled by the water cannon operating panel 113 .

<<Vehicle>>
The vehicle 10 serving as the base of the high-place fire extinguishing system 1 for low-rise buildings is not particularly limited as long as the standard load capacity is 3 tons or less. The vehicle 10 of the present embodiment is a normal fire pump vehicle "CD-I type" with a standard load capacity of 2 tons, and is equipped with a B-1 or A-2 class water pump 12 (see FIG. 10). there is The standard water discharge amount of the water pump 12 is 1500 liters or more and less than 2800 liters per minute. Such water pump 12 is driven by engine 11 (see FIG. 10), which is the driving force of vehicle 10 . The power of engine 11 is transmitted to water pump 12 from PTO shaft 13 (see FIG. 10). The water discharge flow rate and water discharge pressure of the water pump 12 increase or decrease in proportion to the engine speed. Water pushed out by the water pump 12 is discharged from a water supply pipe 14 (see FIG. 3) provided on the body ceiling of the vehicle 10 .

As shown in FIG. 5, an operation unit for controlling water discharge and various ball cocks are provided intensively on the rear surface 110 of the vehicle 10 . FIG. 6 shows a partially enlarged view of the rear surface 110. As shown in FIG.

An engine throttle 111 shown in FIG. 6 is an operation unit for increasing or decreasing the rotation speed of the engine 11 . By increasing or decreasing the rotation speed of the engine 11, the operating state of the water pump 12 changes. That is, by operating the engine throttle 111, it is possible to control the water discharge flow rate and the water discharge pressure.

The water pump operating panel 112 shown in FIG. 6 includes a control section 112a, a display 112b and various switches 112c shown in FIG. The control unit 112a controls the operation of the vacuum pump 12a and the operating state of the water pump 12 based on the operation of various switches 112c. Further, the control unit 112a detects the open/closed states of the water inlet 114, the relay inlet 115, the water outlet 116, and the mixing outlet 117, which are ball cocks. The control unit 112a causes the display 112b to display information about the water pump 12, the vacuum pump 12a, and each ball cock.

The display 112b displays, for example, a schematic diagram of the current flow of water, and digitally displays the number of revolutions of the water pump 12, the water discharge pressure, and the water discharge flow rate. The display 112b also displays the opening/closing states of the water inlet 114, the relay inlet 115, the water outlet 116, and the mixing outlet 117 described above. A firefighter or fire brigade member engaged in firefighting activities can monitor the operating state of the water pump 12 based on the information displayed on the display 112b.

The water gun operating panel 113 shown in FIG. 6 includes a control section 113a, a display 113b, a joystick 113c and various switches 113d shown in FIG. The control unit 113 a controls operations of the water pipe 20 and the water gun 70 . The control unit 113a controls ON/OFF of the stop valve 30, the brake mechanism 40, and the hydraulic cylinder 60 provided in the water pipe 20 based on the operation of various switches 113c. The controller 113a also operates the first and second motors 73 and 76 built in the water gun 70 based on the operation of the joystick 113c to control the vertical and horizontal angles of the water gun 70. Further, the controller 113a can swing the water gun 70 horizontally based on the operation program stored in the memory.

An image captured by the video camera 80 attached to the nozzle 77 of the water gun 70 is displayed on the display 113b. As mentioned above, the vertical and horizontal angles of water cannon 70 can be manipulated by joystick 113c. A firefighter or a fire brigade member engaged in firefighting can operate the joystick 113c while viewing the image displayed on the display 113b to accurately aim the water cannon 70 at a target location (for example, fire point).

The various switches 113d include, for example, an open/close switch for the stop valve 30, an ON/OFF switch for the brake mechanism 40, an ON/OFF switch for the hydraulic cylinder 60, an ON/OFF switch for the water cannon 70, and an ON/OFF switch for the water cannon 70. An ON/OFF switch and the like are included.

A water intake 114 shown in FIG. 6 is a ball cock for supplying water from natural sources to the water pump 12, and is connected to a hose (not shown). Natural water is supplied to the water pump 12 from a hose connected to the water inlet 114 . The water pushed out by the water pump 12 is discharged from a water supply pipe 14 provided on the body ceiling of the vehicle 10 or a water discharge port 116 which will be described later.

A fire hydrant, a small pump, or the like can be connected to the relay suction port 115 shown in FIG. 6 via a hose (not shown). Pressurized water supplied from a fire hydrant or a small pump is supplied to the water pump 12 via the relay suction port 115 .

A hand-held hose can be connected to the water outlet 116 shown in FIG. When a firefighter or a fire brigade firefighter fires a fire with a hose on hand, the water pushed out by the water pump 12 is discharged from the water discharge port 116 by opening the ball cock of the water discharge port 116 .

A mixing discharge port 117 shown in FIG. 6 is a ball cock for discharging a mixed liquid produced by a mixing device (not shown). The mixing device mixes the foam fire extinguishing agent and water to produce a mixed liquid. This mixed liquid is supplied to a hose connected to the mixing outlet 117 .

<<Water Pipe>>
As shown in FIGS. 1 to 5, the water pipe 20 is connected to a tiltable mechanism 50 installed on the ceiling of the vehicle 10. As shown in FIGS. The tilting mechanism 50 is mainly composed of a connecting pipe 51 and a pair of bearing units 52 located on both sides of the connecting pipe 51 . The connecting pipe 51 is supported between the pair of bearing units 52 so as to be freely rotatable in the vertical direction. A lower end of the water pipe 20 is coupled to one end of the connecting pipe 51 . The other end of the connecting pipe 51 passes through one bearing unit 52 and is coupled to the water supply pipe 14 provided on the body ceiling of the vehicle 10 . The water pushed out by the water pump 12 is discharged from the water supply pipe 14 and supplied to the inside from the lower side of the water pipe 20 via the connecting pipe 51 . Also, the water pipe 20 is vertically rotated within a range of 0° to 90° by a hydraulic cylinder 60 provided on the ceiling of the vehicle 10 .

The structure of the water pipe 20 will be described in detail with reference to FIGS. 7(a) to 7(c). For convenience of explanation, the vertical and horizontal directions of the water pipe 20 are defined in FIG.

As shown in FIGS. 7A and 7B, the water pipe 20 is mainly composed of a first stage pipe 21 and a second stage pipe 22 . The inner diameter of the first-stage pipe 21 is substantially equal to the outer diameter of the second-stage pipe 22, and the second-stage pipe 22 slides telescopically with respect to the first-stage pipe 21, so that the water pipe 20 expands and contracts in the longitudinal direction. It has become.

As shown in FIG. 7A, a first-stage flange 21A is provided on the outer peripheral surface of the lower end of the first-stage pipe 21. As shown in FIG. The first-stage flange 21A is coupled to one end of the connecting pipe 51 of the tilting mechanism 50 described above (see FIGS. 1 to 3).

A housing 210 is attached to the outer peripheral surface of the upper end side of the first stage pipe 21 . The housing 210 extends further upward beyond the upper end of the first stage pipe 21 . Between the inner peripheral surface of the housing 210 and the outer peripheral surface of the second-stage pipe 22, a plurality of V-packings 211 are attached so as to overlap each other. A plurality of V-packings 211 form a sealing surface for the second stage pipe 22 . A lantern ring 212 is incorporated in the middle of a plurality of V-packings 211 that overlap each other. These V-packing 211 and lantern ring 212 are vertically sandwiched between a female adapter 213 and a male adapter 214 . Female adapter 213 is held by holder 215 inserted between the inner peripheral surface of housing 210 and the outer peripheral surface of second stage pipe 22 . Further, the holder 215 is held inside a cap 216 screwed onto the upper end of the housing 210 .

Two through holes are provided symmetrically on the side wall of the housing 210 at positions corresponding to the lantern rings 212 . An air vent nipple 217 is attached to one through hole, and a grease nipple 218 is attached to the other through hole. The air vent nipple 217 releases the air in the gap between the inner peripheral surface of the first-stage pipe 21 and the outer peripheral surface of the second-stage pipe 22 to the outside of the housing 210 when the second-stage pipe 22 slides upward. Let The grease nipple 218 is for injecting grease into the sealing surface formed by the V-packing 211 through the lantern ring 212 .

On the other hand, a second-stage flange 22A is provided on the outer peripheral surface of the upper end of the second-stage pipe 22 . A second-stage intermediate flange 22B is provided on the outer peripheral surface of the second-stage pipe 22 directly below the second-stage flange 22A. The second stage flange 22A is coupled to the inlet of the stop valve 30 shown in FIGS. 1-5. The second-stage intermediate flange 22B abuts against the cap 216 of the first-stage pipe 21 and serves as a stopper when the second-stage pipe 22 slides downward and the water pipe 20 contracts.

As shown in FIG. 7(c), a pipe end 222 having a ring 221 is fitted to the lower end of the second stage pipe 22. As shown in FIG. The ring 221 covers the outer peripheral surface of the lower end of the second-stage pipe 22 and forms a sealing surface against the inner peripheral surface of the first-stage pipe 21 . The pipe end 222 is firmly fitted to the inner peripheral surface of the second stage pipe 22 to prevent the ring 221 from coming off.

Here, the water supply device 1 of the present embodiment is intended to extinguish a fire in a typical Japanese house. For this reason, it is considered that the maximum length of the water pipe 20 in the extended state is 10 m. The Building Standards Act of Japan limits the absolute height of buildings to 10 m or 12 m or less in class 1 and class 2 low-rise exclusive residential districts. Therefore, considering the total height (for example, about 3 m) of the vehicle 10, the tilting mechanism 50, the stop valve 30, and the water gun 70, the length of the water pipe 20 in the extended state is within the range of more than 4 m and 10 m or less. can be

<<Stop valve>>
As shown in FIGS. 1 to 5, the inlet of the stop valve 30 is coupled to the second-stage flange 22A of the second-stage pipe 22 of the water pipe 20, and the outlet of the stop valve 30 is coupled to the water gun 70. be done. The configuration of the stop valve 30 will be described in detail with reference to FIGS. 8(a) and 8(b). For convenience of explanation, the vertical and horizontal directions of the stop valve 30 are defined in FIG.

In FIG. 8A, inside the body 31 of the stop valve 30, an inflow port 31a, a valve chamber 31c, and an outflow port 31b are formed in this order from the bottom. A first flange 31e is provided on the outer peripheral surface of the inlet 31a. A second flange 31f is provided on the outer peripheral surface of the outflow port 31b. The first flange 31e is coupled to the second-stage flange 22A of the second-stage pipe 22 of the water pipe 20 described above. Also, the second flange 31f is coupled to the water gun 70 described above.

The valve chamber 31c is located between the inflow port 31a and the outflow port 31b, and accommodates the ball disk 32 therein. The ball disc 32 is a valve body in the shape of a part of a sphere, and has a bore 32a penetrating through its center. As shown in FIG. 8(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. Also, as shown in FIG. 8(b), the diameter of the bore 32a of the ball disk 32 is substantially equal to the diameters of the inlet 31a and the outlet 31b.

On the other hand, seat rings 34 are attached to the boundary between the valve chamber 31c and the inlet 31a and the boundary between the valve chamber 31c and the outlet 31b. The seat ring 34 is a valve seat corresponding to the ball disk 32, has an inner diameter approximately equal to the diameters of the inlet 31a and the outlet 31b, and presses against the spherical surface of the ball disk 32 or the outer peripheral edge of the opening of the bore 32a. .

The ball disk 32 can be vertically rotated by 90° around the stem 33, and can be in the closed state shown in FIG. 8(a) or the opened state shown in FIG. 8(b). In the closed state of FIG. 8(a), the spherical surface of the ball disk 32 blocks both the inlet 31a and the outlet 31b, blocking water supply from the inlet 31a to the outlet 31b. On the other hand, in the open state of FIG. 8(b), the bore 32a of the ball disk 32 communicates the inlet 31a and the outlet 31b, allowing water to flow from the inlet 31a to the outlet 31b.

As shown in FIG. 10 , the stop valve 30 opens and closes based on a signal from the water gun control panel 113 . When the stop valve 30 is closed, the water pipe 20 expands under the pressure of water supplied from the water pump 12 into the first and second pipes 21 and 22 . On the other hand, when the stop valve 30 is open, the water that has passed through the water pipe 20 is supplied to the water gun 70 .

Here, as shown in FIGS. 8A and 8B, a drain port 31d is provided on the wall of the valve chamber 31c. A solenoid valve 35 is connected to the drain port 31d. The drain port 31d and the electromagnetic valve 35 are for draining water accumulated in the valve chamber 31c to the outside. As shown in FIG. 10 , the solenoid valve 35 opens and closes based on a signal from the water gun control panel 113 . When the electromagnetic valve 35 is opened, water accumulated in the valve chamber 31c is discharged to the outside. When the solenoid valve 35 is closed, the inside of the valve chamber 31c is closed from the outside. As will be described later, the drain port 31d and the solenoid valve 35 are also used to discharge the air inside the water pipe 20 to the outside when the water pipe 20 is extended.

<<brake mechanism>>
As shown in FIGS. 1B and 2B, the water pipe 20 is provided with a brake mechanism 40 . The brake mechanism 40 is mainly composed of a pipe 41 , a rod 42 and a brake 43 . The rod 42 slides telescopically with respect to the pipe 41 so that the brake mechanism 40 can extend and retract in the longitudinal direction. The brake 43 is attached to the upper end of the pipe 41 and has a cylindrical housing with an inner diameter slightly larger than the outer diameter of the rod 42 . A clamp (not shown) is provided in this cylindrical housing. A rod 42 is inserted through the cylindrical housing of the brake 43 .

Such a brake mechanism 40 is attached parallel to the water pipe 20 . Specifically, the lower end of the pipe 41 is coupled to the lower end of the first stage pipe 21 of the water pipe 20 . The upper end of the rod 42 is coupled to the upper end of the second stage pipe 22 of the water pipe 20 . 1(b) and 2(b), the tip of the piston rod of the hydraulic cylinder 60 is rotatably connected to the lower end of the pipe 41. As shown in FIG. With this configuration, the brake mechanism 40 is vertically rotated in the range of 0° to 90° together with the water pipe 20 . Also, the rod 42 slides vertically together with the second-stage pipe 22 of the water pipe 20 .

As shown in FIG. 10 , the brake mechanism 40 is turned ON/OFF based on a signal from the water gun control panel 113 . The brake mechanism 40 clamps the outer peripheral surface of the rod 42 when it is ON. As a result, the second-stage pipe 22 of the water pipe 20 is locked with an arbitrary protrusion amount. With such a brake mechanism 40, it is possible to position the water gun 70 at an arbitrary height within the range of the projection amount of the second stage pipe 22.

<<Water cannon>>
As shown in FIGS. 9A and 9B, the water gun 70 mainly includes a first pipe 71, a first rotating portion 72, a first motor 73, a second pipe 74, a second rotating portion 75, It is composed of a second motor 76 and a nozzle 77 . As mentioned above, water gun 70 is coupled to the outlet of stop valve 30 . When the stop valve 30 is open, the water that has passed through the water pipe 20 is supplied to the first and second pipes 71 and 74 and discharged from the nozzle 77 to the outside.

One end of the first pipe 71 is coupled to the first rotating portion 72 . The first rotating portion 72 is driven by a first motor 73 and is horizontally rotatable. The other end side of the first pipe 71 is coupled to the second rotating portion 75 . One end of the second pipe 74 is coupled to the second rotating portion 75 . The second rotating portion 75 is driven by a second motor 76 and is vertically rotatable. A nozzle 77 is coupled to the other end of the second pipe 74 .

As shown in FIG. 10, the first and second motors 73 and 76 operate based on the operation of the joystick 113c to drive the first and second rotating parts 72 and 75. As shown in FIG. As shown in FIG. 9(b), by driving the first rotating portion 72, the nozzle 77 of the water gun 70 rotates 165° to the left and 165° to the right, for a total of 330° in the horizontal direction. It is possible to move On the other hand, as shown in FIG. 9(a), by driving the second rotating portion 75, the nozzle 77 of the water gun 70 can be vertically rotated by 90° upward and 30° downward, or 120° in total. ° It is possible to rotate.

<< video camera >>
Here, as shown in FIGS. 9A and 9B, a video camera 80 is attached to the nozzle 77 of the water gun 70 . The video camera 80 faces in the same direction as the nozzle 77 and rotates vertically and horizontally with the nozzle 77 . As shown in FIG. 10, the image data captured by the nozzle 77 is input to the water gun operating panel 113 and processed by the control section 113a. The control unit 113a causes the display 113b to display an image captured by the video camera 80. FIG. As described above, the firefighter or fire brigade member engaged in firefighting operations operates the joystick 113c while viewing the image displayed on the display 113b, and accurately directs the nozzle 77 of the water gun 70 to the target location (for example, fire point). can be directed.

<<Details of water pipe extension control>>
The extension control of the water pipe 20 described above will be described in detail with reference to FIG. 10 . The water pipe 20 expands from the contracted state by operating various switches 113d on the water gun operation panel 113 shown in FIG.

In FIG. 10, an electric valve 15 is connected between the water pump 12 and the water pipe 20 . The electric valve 15 controls the supply of water from the water pump 12 into the water pipe 20 . A firefighter or a fire brigade member operates various switches 113d of the water gun operating panel 113 to open and close the electric valve 15 . That is, when the various switches 113d are operated, the controller 113a of the water gun operating panel 113 outputs a signal to open and close the electric valve 15. FIG. When the electric valve 15 is opened, the water pushed out by the water pump 12 is discharged from the water supply pipe 14 (see FIG. 3) provided on the body ceiling of the vehicle 10 and flows through the connecting pipe 51 of the tilting mechanism 50. , is supplied into the water pipe 20 in a contracted state.

Here, the firefighter or fire brigade member opens the electric valve 15 and at the same time operates the various switches 113d of the water gun control panel 113 to open the electromagnetic valve 35 of the stop valve 50 . As a result, water is supplied into the contracted water pipe 20, and the air in the water pipe 20 is discharged to the outside from the drain port 31d of the stop valve 30 (the gray arrow in FIG. 8A). reference). As a result, the inside of the compressed water pipe 20 is gradually filled with the supplied water.

After that, when all the air in the water pipe 20 is discharged to the outside, the water supplied into the water pipe 20 flows out from the drain port 31 d of the stop valve 30 . Therefore, the firefighter or fire brigade member operates the various switches 113d of the water gun operating panel 113 to close the solenoid valve 35 of the stop valve 50. FIG.

If water continues to be supplied into the contracted water pipe 20 as it is, the second stage pipe 22 (see FIG. 7(b)) constituting the water pipe 20 will reduce the pressure of the water supplied into the pipe. It receives and slides upward. As a result, the entire water pipe 20 is extended.

A firefighter or a fire brigade member operates various switches 113d of the water gun operation panel 113 when the water pipe 20 is completely extended or when the water pipe 20 is extended to an arbitrary height. to operate the brake mechanism 40 . The second stage pipe 22 of the water pipe 20 is fixed by the brake mechanism 40, and the entire water pipe 20 is maintained in an extended state.

Next, the firefighter or fire brigade member operates the joystick 113c while viewing the image displayed on the display 113b of the water cannon control panel 113, and directs the nozzle 77 of the water cannon 70 to a target location (for example, fire point). Thereafter, the firefighter or fire brigade member operates various switches 113d of the water gun control panel 113 to open the ball disc 32 of the stop valve 50 (see FIG. 8B). As a result, a large amount of water is directly discharged from the nozzle 77 of the water gun 70 to the target location.

<Second embodiment>
As shown in FIG. 11, an infrared camera 90 can be optionally added to the high-place fire extinguishing system 1 for low-rise buildings. The infrared camera 90 captures an image (thermography) that visualizes changes in the amount of infrared rays emitted from an object. An infrared camera 90 is attached to the nozzle 77 of the water cannon 70 in the same manner as the video camera 80 . Image data captured by the infrared camera 90 is input to the water gun operation panel 113 and processed by the control section 113a. An image captured by the infrared camera 90 is displayed on the display 113b. A firefighter or a fire brigade member engaged in firefighting can operate the joystick 113c while viewing the image displayed on the display 113b to accurately direct the nozzle 77 of the water gun 70 to the hottest place (for example, fire spot). can.

Further, the controller 113 a of the water gun operating panel 113 may be configured to automatically control the orientation of the nozzle 77 of the water gun 70 based on the image data captured by the infrared camera 90 . That is, the control unit 113a analyzes the image data captured by the infrared camera 90 and identifies the xy coordinates of the location with the highest temperature. Next, the control unit 113a drives the first and second motors 73 and 76 so that the nozzle 77 is directed to the xy coordinates of the highest temperature location.

<Effect>
A high-place fire extinguishing system for low-rise buildings 1 of this embodiment includes a small vehicle 10 with a standard loading capacity of 3 tons or less, a water pump 12 that can be loaded on this small vehicle 10, a water pipe 20, a stop valve 30, and a water gun 70. I have. The water pipe 20 has a very simple structure that is extended by the pressure of the water discharged from the water gun 70 . A simple and small high-place fire extinguishing system 1 for low-rise buildings can drive into urban areas where buildings are densely packed and roads are narrow, and fire points on the second floor or higher of buildings can be detected by a video camera 80 or an infrared camera 90. It is possible to capture it with water and release it directly. According to the low-rise building high-place fire extinguishing system 1 of the present embodiment, it is possible to effectively prevent the spread of flying fire on the roof and upper part of the building. In addition, the high-place fire extinguishing system 1 for low-rise buildings of the present embodiment can be manufactured based on a general fire pump vehicle or a portable fire pump vehicle with a standard load capacity of 3 tons or less, and can be used for fires that occur in urban areas. Equipped with water discharge performance suitable for extinguishing fires. Therefore, the high-place fire extinguishing system 1 for low-rise buildings according to the present embodiment can be an effective main equipment for fire departments and firefighting teams of local governments.

<Other changes>
The high-place fire extinguishing system for low-rise buildings of the present invention is not limited to the above-described embodiments. For example, the vehicle to which the high-place fire extinguishing system for low-rise buildings of the present invention is applied is not limited to a normal fire pump vehicle, and may be a vehicle loaded with a portable fire pump. In the case of a portable fire pump truck, the pump for supplying water to the water pipe may be a portable pump that can be loaded and unloaded from the vehicle.

Further, the vehicle to which the high-place fire extinguishing system for low-rise buildings of the present invention is applied may be an existing vehicle equipped with a fire department or a fire brigade. That is, it is not always necessary to prepare a new vehicle in manufacturing the high-place fire extinguishing system for low-rise buildings of the present invention. The high-altitude fire extinguishing system for low-rise buildings of the present invention is provided by adding water pipes, stop valves, water guns, etc. to existing ordinary fire pump vehicles or portable fire pump loading vehicles equipped by fire departments and fire brigade. It is possible to manufacture by

In addition, the "substantially vertical state" and "vertical state" for the water pipe constituting the high-place fire extinguishing system for low-rise buildings of the present invention theoretically mean that the water pipe is at 90° to the horizontal plane. However, it is not limited to strict "perpendicular (90°)". For example, considering the inclination of the water pipe due to manufacturing errors, water pressure, wind pressure, etc., the “substantially vertical state” and “vertical state” of the water pipe mean that the water pipe is about 80 ° to 100 ° with respect to the horizontal plane. including becoming

1 High altitude fire extinguishing system for low-rise building 10 Vehicle (CD-I)
11 engine 12 water pump 12a vacuum pump 13 PTO shaft 14 water supply pipe 15 electric valve 110 back 111 engine throttle 112 pump operation panel 112a control unit 112b display 112c various switches 113 water gun operation panel 113a control unit 113b display 113c joystick 113d various switches 114 Water intake port 115 Relay suction port 116 Water discharge port 117 Mixing discharge port 20 Water pipe 21 First stage pipe 21A First stage flange 22 Second stage pipe 22A Second stage flange 22B Second stage intermediate flange 210 Housing 211 V-packing 212 Lantern ring 213 Female adapter 214 Male Adapter 215 Holder 216 Cap 217 Air Bleed Nipple 218 Grease Nipple 221 Ring 222 Pipe End 30 Stop Valve 31 Body 31a Inlet 31b Outlet 31c Valve Chamber 31d Drain Port 31e First Flange 31f Second Flange 32 Ball Disk 32a Bore 33 Stem 34 Seat ring 35 Solenoid valve 40 Brake mechanism 41 Pipe 42 Rod 43 Brake 50 Retractable mechanism 51 Connecting pipe 52 Bearing unit 60 Hydraulic cylinder 70 Water gun 71 First pipe 72 First rotating part 73 First motor 74 Second pipe 75 second rotating section 76 second motor 77 nozzle 80 video camera 90 infrared camera

Claims (7)

Vehicles with a standard load capacity of 3 tons or less,
a pump mounted on the vehicle;
a tilting mechanism installed on the ceiling of the vehicle and capable of rotating in a vertical direction;
The lower side is coupled to the tilting mechanism, and can be in a tilted state, an upright state, and a substantially vertical state on the ceiling of the vehicle, allowing the water supplied from the pump to pass from bottom to top. a water pipe capable of
a hydraulic cylinder for laying down and upright the water pipe;
a valve that is provided on the upper side of the water pipe and can be in a closed state to stop the flow of water passing through the water pipe;
a water gun provided on the upper side of the water pipe and capable of discharging water that has passed through the water pipe to the outside;
The water pipe is composed of two or more pipes that telescopically slide and expand and contract, and when the valve is closed, it expands under the pressure of the water supplied into the pipe. ,
A high-place fire extinguishing system for a low-rise building, characterized in that the water cannon can be remotely controlled in vertical and horizontal angles by a water cannon operation panel. 2. A high-place fire extinguishing system for low-rise buildings according to claim 1 , wherein the length of said water pipe in an extended state is 10 m or less. 3. The high-place fire extinguishing system for low-rise building according to claim 1 , further comprising a brake mechanism for stopping sliding of said pipe constituting a tip of said water pipe at an arbitrary position among said two or more pipes. A camera capable of capturing moving images and a display for displaying images captured by the camera are further provided, and the camera is attached to the water cannon so that its optical axis is parallel to the muzzle of the water cannon. and said display is provided on said water cannon control panel , and it is possible to remotely control the vertical and horizontal angles of said water cannon while watching the video taken by said camera. A fire extinguishing system for low-rise buildings according to any one of the above. A high-place fire extinguishing system for low-rise buildings according to any one of claims 1 to 4 , further comprising an infrared camera capable of visualizing infrared rays emitted from an object. A control unit for controlling the vertical and horizontal angles of the water cannon is provided, and the control unit directs the water cannon to the place with the highest temperature to discharge water based on the measurement result of the infrared camera. A fire extinguishing system for low-rise buildings according to claim 5 . A control unit for controlling the vertical and horizontal angles of the water gun, wherein the control unit automatically swings at least horizontally according to a program to discharge water in a predetermined range. A fire extinguishing system for low-rise buildings according to any one of the above items.

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