JP2008104473A - Water discharge nozzle for fire extinguishing and vehicle for fire extinguishing - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water discharge nozzle for fire extinguishing or the like which makes safe and efficient fire extinguishing activity possible. <P>SOLUTION: The water discharge nozzle 1 for fire extinguishing is provided with a long cylindrical main body 2 connected to the distal end of a water supply hose and a spherical water discharge head 3 attached to the distal end of the cylindrical main body 2, and many fire extinguishing water discharge ports 30 of different water discharge directions are opened on the water discharge head 3. It is preferable that a sharp breakthrough horn part 4 which is cross-shaped in the distal end view is provided on the distal end of the water discharge head 3 and a cooling water discharge means 5 for discharging and scattering cooling water to the distal end direction of the cylindrical main body 2 is provided on the water discharge hose connection side of the cylindrical main body 2. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a fire-fighting water discharge nozzle used for fire-fighting activities during a fire. The present invention also relates to a fire extinguishing vehicle equipped with this fire fighting water discharge nozzle.

  When a fire occurs in a house or factory, the current situation is that the fire is extinguished by discharging water from outside the fire site. As a fire extinguishing nozzle used for such a fire extinguishing work, there exists a thing etc. which are described in the following patent document 1, for example.

  In Patent Document 1, “a telescopic slidable nozzle is attached to the tip of the body tube, an annular ridge is provided on the inner surface of the nozzle, and the inner diameter of the annular ridge is smaller than the inner diameter of the nozzle tip surface. In addition, a metal fitting having a water stop plate for opening and closing the annular step surface of the ring-shaped protrusion is provided by a spoke at the center of the tip of the main body pipe, and the metal fitting has an automatic opening / closing valve for small drainage or pressure by the pressure water A small drainage ridge is provided to slightly separate the water stop plate from the annular step surface by the force of water, and the nozzle is slid to the main body tube side so that the surface between the lower surface of the water stop plate and the tip surface of the nozzle. A fire extinguishing nozzle characterized by forming a water discharge gap is disclosed. And when this happens, “When the pressure of the fire hose or fire nozzle rises, the fire nozzle automatically drains slightly and the water pressure drops, the hose, the main pipe and the nozzle are relaxed, and the main pipe is gripped. There is no danger to the fire extinguisher, and there is an effect that the fire extinguishing operation can be performed safely. "

JP 2004-329388 A

  However, the conventional fire extinguishing nozzle as described in Patent Document 1 is for discharging water from the outside of a house or the like that is a fire site, and has a problem in terms of fire extinguishing efficiency. In other words, it is necessary to discharge water from a location far away from the combustion location, and fire extinguishing liquid such as discharged water is blocked by the walls of houses, etc., making it difficult to concentrate the fire extinguishing solution on the combustion location. The fire fighting work was inefficient. Here, it is conceivable that a firefighter enters a house or the like and discharges water near the combustion place, but it is not realistic because it is extremely dangerous.

  This invention solves the said subject, and provides the water discharge nozzle for fire extinguishing etc. which enables safe and efficient fire extinguishing activity.

  In order to solve the above-mentioned problems, a long cylindrical main body connected to the tip end of the water supply hose and a spherical water discharge head attached to the tip end of the cylindrical main body are provided. A fire-extinguishing water discharge nozzle having a plurality of different fire-extinguishing water outlets was established. Here, the terms “water supply” and “water discharge” are not intended only for water but widely for liquids such as fire extinguishing liquid.

  This fire-extinguishing water discharge nozzle is inserted into the fire site from the water discharge head side, and fire extinguishing liquid such as water is supplied from the water supply hose. The fire-extinguishing liquid supplied from the water supply hose is discharged in different directions from each fire-extinguishing water outlet provided in the water discharge head. In other words, the fire can be extinguished from the inside of the fire site, thereby allowing water to be discharged directly to the combustion site. In addition, since the fire extinguishing liquid is discharged from each fire discharge outlet in different directions, it is possible to extinguish a wide range and to realize efficient fire extinguishing activities. Furthermore, since it is not necessary to enter a house or the like, efficient fire extinguishing activities can be performed safely.

  A water discharge nozzle for fire extinguishing can be provided in which a tip end portion of a water discharge head is provided with a sharp corner and a break-through corner portion having a cross shape when viewed from the front end. The break corner is sharp and is intended to destroy obstacles such as walls. Thereby, obstacles, such as a wall, can be penetrated efficiently and it becomes easy to insert the water discharge nozzle for fire extinguishing at a fire spot. Since the break-through corner has a cross shape when viewed from the tip, it is easy to provide a fire extinguishing water outlet at the tip of the water discharge head, and it is difficult to prevent water discharge from the fire discharge water outlet. In addition, since the tip view has a cross shape, a high-strength break-through corner is provided while having the above-described features.

  A water discharge nozzle for fire extinguishing can be provided in which cooling water discharge means for discharging and spraying cooling water is provided on the water discharge hose connection side of the cylindrical main body toward the distal end direction of the cylindrical main body. A cooling water discharge | release means is for suppressing the temperature rise of the cylindrical main body inserted in the fire scene. If water discharge from the fire discharge outlet is continued and the combustion location near the discharge head is extinguished, it is necessary to move the discharge head to another combustion location and continue the fire extinguishing activity. At this time, if the cylindrical main body is hot, it is difficult to move it by holding the water discharge head. By setting it as the said structure, the temperature rise of a cylindrical main body can be suppressed, and it becomes easy to move the water discharge nozzle for fire extinguishing inserted in the fire spot by this. Moreover, being able to suppress the temperature rise of a cylindrical main body also protects the cylindrical main body exposed to high temperature, and a fire extinguishing activity for a long time is attained. Here too, the term “cooling water” covers not only water but also liquids such as fire extinguishing liquid.

  Here, the cooling water discharge means includes a ring-shaped outer ring that is externally fitted to the water discharge hose connection side of the cylindrical main body, and a plurality of cooling water discharge ports that are opened over the entire circumference of the outer ring. Provide a water discharge nozzle for fire extinguishing, in which each cooling water discharge port is inclined to the cylindrical main body side so that the cooling water is discharged and dispersed on the outer surface of the cylindrical main body. Is preferred. Thereby, the outer surface of a cylindrical main body can be efficiently cooled over the perimeter.

  It can also be set as the fire-extinguishing water discharge nozzle by which a grip part protrudes in the outer surface of the water discharge hose connection side of a cylindrical main body. This makes it easier to put out the fire-extinguishing water discharge nozzle near the combustion location.

  Moreover, it is a fire extinguishing vehicle provided with one of these fire-extinguishing water discharge nozzles, which is provided with a telescopic boom, and has a fire extinguishing water discharge nozzle attached to the tip of the boom. You can also. Thereby, fire extinguishing activity can be performed more safely and efficiently.

  The present invention can provide a fire-extinguishing water discharge nozzle and a fire-extinguishing vehicle that enable safe and efficient fire-fighting activities.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIGS. 1-7 is a figure for demonstrating the water discharge nozzle for fire extinguishing of this invention, FIGS. 8-10 is a figure for demonstrating the fire extinguishing vehicle of this invention. First, the fire-fighting water discharge nozzle will be described with reference to FIGS.

[Water discharge nozzle for fire fighting]
1 is a perspective view of a fire-fighting water discharge nozzle, FIG. 2 is a right side view of the fire-fighting water discharge nozzle of FIG. 1, and FIG. 3 is a view of the fire-fighting water discharge nozzle of FIG. It is an enlarged front view. 4 is a longitudinal sectional view of a cut surface extending vertically through the line AA ′ in FIG. 1 as viewed from the direction of the arrow, and FIG. 5 is an enlarged longitudinal sectional view of a portion P in FIG. 6 is a diagram schematically showing a state in which a fire extinguishing activity is performed using the water discharge nozzle for fire extinguishing in FIG. On the other hand, FIG. 7 is a perspective view showing another example of the water discharge nozzle for fire extinguishing. As shown in FIG. 1, the fire-fighting water discharge nozzle 1 of the first embodiment includes a breakthrough corner part 4, a cooling water discharge means 5, and a grip part 6 in addition to the cylindrical main body 2 and the water discharge head 3.

  The cylindrical main body 2 is a long cylindrical body made of a metal material. The cylindrical main body 2 is not limited to a cylindrical body as long as it is a long cylindrical body, and may be a rectangular cylinder such as a square cylinder or a hexagonal cylinder. Moreover, if it is a hard material with heat resistance, it will not be limited to metal. And the water supply hose connection port 21 (refer FIG.2 and FIG.4) which connects a water supply hose (not shown) is provided in the base end part.

  The water discharge head 3 is a hollow spherical body made of a metal material, and is attached to the distal end opening of the cylindrical main body 2 so as to communicate with the inside of the cylindrical main body 2 as shown in FIG. A large number of fire-extinguishing water outlets 30 are opened over almost the entire surface of the water discharge head 3. Each fire-extinguishing water outlet 30 is provided uniformly over the entire surface of the water discharge head 3 at regular intervals, and each water outlet 30 is provided so as to discharge water toward the outside in the perpendicular direction of the surface of the water discharge head 3.

  The break-through corner 4 is prepared by preparing two triangular plate materials obtained by cutting a high-strength metal plate into a triangular shape, dividing one triangular plate material into two equal parts, and projecting at the center of both sides of the other triangular plate material. It is fixed and has a sharp chevron shape and a cross shape when viewed from the tip. The breakthrough corner portion 4 has a base end side which is the water discharge head 3 side cut out in an arc shape so as to follow the surface shape of the spherical water discharge head 3, and the base end side is fixed to the tip end portion of the water discharge head 3. Thus, the water discharge head 3 is attached to the water discharge head 3 so as to be sharpened toward the tip of the water discharge nozzle 1 for fire extinguishing. Here, since the break-through angle portion 4 has a cross shape when viewed from the front end, it is easy to provide the fire extinguishing water outlet 30 at the front end portion of the water discharge head 3, and it becomes difficult to prevent water discharge from the fire extinguishing water outlet 30. For example, when a cone is attached to the tip of the water discharge head 3, the tip of the water discharge head 3 is covered with this cone, and the fire extinguishing water outlet 30 cannot be provided at this tip. This problem can be improved if the bottom area is reduced to a thin cone. However, the thinner the cone, the more likely the periphery of the cone attachment location in the water discharge head 3 will interfere with obstacles when inserted into the fire site. Also, the strength of the cone is reduced. The breakthrough corner 4 used in the fire-extinguishing water discharge nozzle 1 of the present embodiment has a sharp chevron shape and a cross shape when viewed from the tip, so that it has high strength while having the above-described features. It is preferable that the break corner 4 is configured such that the lengths of the upper and lower sides and the left and right sides of the substantially cross shape when viewed from the front end are not less than the radius of the water discharge head 3 that is a spherical body.

  The cooling water discharge means 5 is for discharging and spraying cooling water along the outer surface of the cylindrical main body 2 toward the distal end direction of the cylindrical main body 2, and includes an outer ring 51 and a large number of cooling water. A discharge port 50 is provided. The outer ring 51 is a hollow annular body made of a metal material, and, as shown in FIG. It is comprised with the side wall part 513. FIG. And the water supply hose connection port 21 side of the cylindrical main body 2 is provided with a water passage slit over the entire circumference of the cylindrical main body 2, and the cylindrical main body 2 is divided by this water passage slit. Yes. The outer fitting ring 51 is externally fixed to the cylindrical main body 2 so as to cover the water passage slit so as to communicate with the inside of the cylindrical main body 2. A number of cooling water discharge ports 50 are opened in the outer ring 51 over almost the entire circumference of the wall surface on the water discharge head 3 side. Then, in order to discharge and disperse the cooling water along the outer surface toward the distal end direction of the cylindrical main body 2, each cooling water discharge port 50 has each cooling water discharge direction of the cylindrical main body 2. Inclined toward the cylindrical main body 2 from the direction parallel to the longitudinal direction and toward the distal end side of the cylindrical main body 2. In the present embodiment, the inclination angle θ formed by the direction parallel to the longitudinal direction of the cylindrical main body 2 and toward the front end side of the cylindrical main body 2 and the cooling water discharge direction is 5 °, but is not limited to this. The inclination angle θ is preferably 1 to 45 °. When the inclination angle θ is smaller than 1 °, it is difficult to cool the lower side of the cylindrical main body 2, and when the inclination angle θ is larger than 45 °, it is difficult to cool the distal direction side of the cylindrical main body 2. The inclination angle θ is preferably 2 to 30 °, more preferably 3 to 20 °. On the other hand, in the present embodiment, the outer ring 51 is in communication with the inside of the cylindrical main body 2 and the fire extinguishing liquid is also used as cooling water. However, the present invention is not limited to this. You may comprise so that the cooling water different from a fire extinguishing liquid may be supplied to a cooling water discharge | release means by a different path | route from a fire extinguishing liquid.

  The grip 6 is for gripping this and inserting the fire-extinguishing water discharge nozzle 1 into the fire site, and on the outer surface of the cylindrical body 2 on the side of the water supply hose connection port 21, Projected at several points. The grip 6 protrudes from the above-described cooling water discharge means 5, that is, from the water supply hose connection port 21 side. Since the grip portion 6 is required to have a certain degree of heat resistance and low thermal conductivity, it is made of a thermosetting resin in the present embodiment. The number of grips 6 is not particularly limited and may be one, but it is preferable to provide a plurality of grips 6 as in the present embodiment.

  The procedure for performing a fire extinguishing activity using the fire-extinguishing water discharge nozzle 1 is as follows, for example. In the following description, reference is mainly made to FIGS. First, the water supply hose 8 connected to the water supply pump (not shown) is connected to the water supply hose connection port 21 of the cylindrical main body 2. Next, the water supply pump is operated to supply the fire extinguishing liquid 81 from the water supply hose 8 to the cylindrical main body 2. Then, the fire-extinguishing liquid 81 is discharged in almost all directions from each fire-extinguishing water outlet 30 of the water discharge head 3. At this time, the fire-extinguishing liquid 810 as cooling water is discharged and sprayed from the cooling water discharge port 50 (see FIG. 1) of the cooling water discharging means 5 toward the tip of the cylindrical body 2. Next, as shown in FIG. 6, the fire extinguishing water discharge nozzle 1 is held by gripping the grip 6, and the glass surface or wall surface of the fire site 9 is broken through the break corner 4 to discharge the fire discharging water discharge nozzle 1. Insert into the fire site 9 from the head 3 side. It is preferable to insert the fire-extinguishing water discharge nozzle 1 so that the water discharge head 3 is positioned in the vicinity of the combustion location 91. The fire is extinguished from the vicinity of the combustion site 91 inside the fire site 9 by the fire extinguishing liquid 81 discharged from each fire discharge outlet (30). If the fire hand in the vicinity of the combustion spot 91 is weakened, the water discharge head 3 is moved by holding the grip 6 and the other combustion spots are extinguished.

  Although the said water discharge nozzle 1 for fire extinguishing is provided with the breakthrough corner part 4, the cooling water discharge | release means 5, and the grip part 6 in addition to the cylindrical main body 2 and the water discharge head 3, it is not limited to this. For example, as shown in FIG. 7, it is good also as the water discharge nozzle 11 for fire extinguishing provided only with the cylindrical main body 2 and the water discharge head 3. FIG. In order to perform a fire fighting operation safely and efficiently, it is preferable to use a fire fighting vehicle as exemplified below.

[Fire fighting vehicle]
Hereinafter, the fire-fighting vehicle of the present invention will be described with reference to FIGS. 8 to 10. FIG. 8 is a right side view of the fire-extinguishing vehicle, and FIG. 9 is a perspective view of a fire-extinguishing water discharge nozzle used in the fire-extinguishing vehicle of FIG. FIG. 10 is a diagram schematically showing a state in which a fire extinguishing activity is performed using the fire extinguishing vehicle of FIG. The fire extinguishing vehicle described below includes a fire fighting water discharge nozzle. In FIGS. 8 to 10, the same components as those of the fire fighting water discharge nozzle described above are denoted by the same reference numerals as necessary. Description is omitted.

  As shown in FIG. 8, the fire-extinguishing vehicle 7 is configured by attaching a boom 72, a fire-extinguishing water discharge nozzle 12, and a water supply device 73 to a vehicle main body 71. The boom 72 is pivotally mounted on a swivel base 711 mounted and fixed on the vehicle main body 71 so as to be movable up and down. The boom 72 is telescopic in this state. In the present embodiment, a boom 72 having a four-stage configuration is used. A fire-extinguishing water discharge nozzle 12 is fixed to the tip of the boom 72. The water discharge nozzle 12 for fire extinguishing is connected to a water supply hose connection port (not shown in FIGS. 8 to 10, corresponding to reference numeral 21 in FIG. 2) of the cylindrical main body 2 to a water supply device 73 on the vehicle main body 71. A water supply hose 8 is attached. FIG. 9 shows the water discharge nozzle 12 for fire extinguishing used in the fire extinguishing vehicle 7. This fire-extinguishing water discharge nozzle 12 includes a breakthrough corner 4 and cooling water discharge means 5 in addition to the tubular body 2 and the water discharge head 3.

  The procedure for performing a fire fighting operation using the fire extinguishing vehicle 7 is, for example, as follows. In the following description, reference is mainly made to FIGS. First, the water supply device 73 of the fire extinguishing vehicle 7 is operated to supply the fire extinguishing liquid 81 from the water supply hose 8 to the cylindrical main body 2. Then, the fire-extinguishing liquid 81 is discharged in almost all directions from each fire-extinguishing water outlet 30 of the water discharge head 3. At this time, the fire-extinguishing liquid 810 as cooling water is discharged and sprayed from the cooling water discharge port 50 (see FIG. 9) of the cooling water discharging means 5 toward the distal end of the cylindrical main body 2. Next, as shown in FIG. 10, in the state of facing the fire site 9, the boom 72 is extended and the glass surface and wall surface of the fire site 9 are broken through the breaker corner 4 at the tip of the fire-extinguishing water discharge nozzle 12. The nozzle 12 is inserted into the fire site 9 from the water discharge head 3 side. It is preferable to insert the fire-extinguishing water discharge nozzle 12 so that the water discharge head 3 is positioned in the vicinity of the combustion location 91. The fire is extinguished from the vicinity of the combustion spot 91 inside the fire site 9 by the fire extinguishing liquid 81 discharged from each fire outlet 30. If the fire hand near the combustion location 91 weakens, the water discharge head 3 can be moved by degenerating the boom 72 or the like to extinguish other combustion locations.

  Although the present invention has been described above with reference to specific embodiments, the present invention is not limited to the above-described embodiments, and claims attached to the application of the present application by those skilled in the art or the like. Various changes and modifications can be made without departing from the scope.

It is a perspective view of the water discharge nozzle for fire extinguishing. It is a right view of the water discharge nozzle for fire extinguishing of FIG. It is the enlarged front view which looked at the water discharge nozzle for fire extinguishing of FIG. 1 from the front end direction. It is the longitudinal cross-sectional view which looked at the cut surface extended up and down through the A-A 'line | wire in FIG. 1 from the arrow direction. FIG. 5 is an enlarged longitudinal sectional view of a P part in FIG. 4. It is a figure which shows typically a mode that the fire extinguishing activity is performed using the water discharge nozzle for fire extinguishing of FIG. It is a perspective view which shows another example of the water discharge nozzle for fire extinguishing. It is a right view of a vehicle for fire fighting. It is a perspective view of the water discharge nozzle for fire extinguishing used for the vehicle for fire extinguishing of FIG. It is a figure which shows typically a mode that the fire extinguishing activity is performed using the vehicle for fire extinguishing of FIG.

Explanation of symbols

1,11,12 Water discharge nozzle for fire extinguishing 2 Tubular body
21 Water supply hose connection 3 Water discharge head
30 Fire extinguishing water outlet 4 Breaking corner 5 Cooling water discharge means
50 Cooling water outlet
51 Outer ring 6 Grip 7 Fire extinguishing vehicle
71 Vehicle body
72 boom
73 Water supply equipment 8 Water supply hose
81 Extinguishing media
810 Fire extinguishing liquid as cooling water 9
91 Combustion location

Claims (6)

A long cylindrical body connected to the tip of the water supply hose;
A spherical water discharge head attached to the tip of the cylindrical body,
The water discharge head is provided with a plurality of fire extinguishing water discharge ports having different water discharge directions.
Water discharge nozzle for fire fighting.   The water discharge nozzle for fire extinguishing according to claim 1, wherein the water discharge head is provided with a break-away corner portion that is sharp and has a cross shape when viewed from the front end.   The water discharge nozzle for fire extinguishing according to claim 1 or 2, wherein cooling water discharge means for discharging and spraying cooling water toward the distal end direction of the cylindrical main body is provided on the water discharge hose connection side of the cylindrical main body. The cooling water discharge means
A ring-shaped outer ring that is externally fitted to the water discharge hose connection side of the tubular body,
A plurality of cooling water discharge ports established over the entire circumference of the outer ring,
The water discharge nozzle for fire extinguishing according to claim 3, wherein each cooling water discharge port is inclined in the direction of cooling water discharge toward the cylindrical main body so that the cooling water is discharged and dispersed on the outer surface of the cylindrical main body. .   The water discharge nozzle for fire extinguishing according to any one of claims 1 to 4, wherein a grip portion protrudes from an outer surface of the tubular main body on the side of the water discharge hose connection. A fire-extinguishing vehicle comprising the fire-extinguishing water discharge nozzle according to any one of claims 1 to 4,
It has a telescopic boom,
A fire extinguishing vehicle in which a fire-extinguishing water discharge nozzle is attached to the tip of the boom.

Images