JP3619631B2 - Sprinkler fire extinguishing equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a sprinkler fire extinguishing equipment installed in a building such as a building.
[0002]
[Prior art]
In recent years, a sprinkler head of a sprinkler fire extinguishing equipment installed in a building or a house has come to be used with a wide watering area in order to enhance fire extinguishing capability. In particular, sprinkler heads used for residential use have a water spray area, for example, in order to prevent the spread of fire from the wall surface by sufficiently spraying fire-fighting water on furniture and curtains placed on the wall side of the room. It can be expanded or fire extinguishing water can reach far.
[0003]
[Problems to be solved by the invention]
However, in the conventional sprinkler fire extinguishing equipment equipped with such a sprinkler head, the fire-fighting water scattered as small particles from the deflector of the sprinkler head collides with air resistance or other particles in the middle of the When this mist spreads on the airflow generated by water spray, fire extinguishing water may adhere to adjacent sprinkler heads. In particular, when the room door is opened when fire extinguishing water is sprayed, the air flow is disturbed, and if fire extinguishing water discharged from the sprinkler head hits the heat sensitive part of the adjacent sprinkler head, the sensing ability of the heat sensitive part There was a risk that the fire extinguishing capability could not be fully achieved.
Even if it is not for home use, if the sprinkler head installation interval is narrow, or if the sprinkler head is tilted and installed by mistake, or if the sprinkler head deflector deforms, the same problem will occur. There was a risk of occurrence.
[0004]
The present invention has been made in view of the above points, and it is possible to prevent fire-fighting water sprayed from a sprinkler head from falling on an adjacent sprinkler head, and a sprinkler fire-extinguishing equipment that can sufficiently exhibit the intended fire-fighting capability. The purpose is to provide.
[0005]
[Means for Solving the Problems]
To achieve the above object, the invention according to claim 1, in sprinkler fire extinguishing installation comprising a head protector to protect the sprinkler head provided in the ceiling of the room from an external force, the head protector, operates the sprinkler head A plurality of guard posts that are formed to surround the deflector of the sprinkler head and are spaced apart from each other at both the outer and outer sides, corresponding to a specific direction of the sprinkler head A regulating body for regulating the water discharge distance of fire-extinguishing water discharged in a specific direction from the sprinkler head is detachably provided between the guard columns .
According to a second aspect of the present invention, there is provided a sprinkler fire extinguishing equipment having a sprinkler head connected to a fire-extinguishing water supply pipe through a head mounting hole drilled in an indoor ceiling, and a sealing plate for closing the head mounting hole. It is characterized in that a restriction body for restricting the water discharge distance of the fire-extinguishing water discharged in a specific direction from the sprinkler head is provided at a plurality of locations.
The invention according to claim 3 is the sprinkler fire extinguishing equipment according to claim 1 or 2, wherein the restricting body includes a plurality of water discharge direction restricting plates that restrict the water discharge direction of the fire-extinguishing water obliquely downward. It is characterized by that.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
1 and 2 are views showing a first embodiment of the present invention, in which 1 indicates a sprinkler head. The sprinkler head 1 has a head main body 3 inserted through a head mounting hole 20 formed in an indoor ceiling 19 and connected to a socket portion 2 of a water supply pipe for fire extinguishing (not shown), and a lower portion of the inner peripheral surface of the head main body 3. A cylindrical frame 4 having an upper outer peripheral surface screwed thereto is provided, and a valve body (not shown) that closes the water outlet 5 formed in the head body 3 is provided inside the cylindrical frame 4. And a pyrolysis-type pressing mechanism (not shown) for pressing the valve body against the water outlet 5 is incorporated.
[0007]
Further, the sprinkler head 1 is provided with a heat sensitive plate 6 as a heat sensitive portion below the cylindrical frame 4, and when the surface temperature of the heat sensitive plate 6 reaches a predetermined temperature (for example, 70 ° C.), a pressing mechanism portion (not shown). As a result, the water for fire extinguishing is discharged from the water outlet 5 of the head body 3, and the water for fire extinguishing discharged from the water outlet 5 strikes the deflector 7 and is sprayed radially. 2 shows the state when the sprinkler head 1 is not operating, and the left side portion shows the state when the sprinkler head 1 is operating.
[0008]
A head protector 9 that protects the sprinkler head 1 from an external force has a cylindrical portion 10 and a guard ring 12 provided below the cylindrical portion 10. A female screw portion 8b that is screwed into a male screw portion 8a formed in the head body 3 of the sprinkler head 1 is formed.
The head protector 9 has a plurality of (for example, six) guard columns 13 that support the guard ring 12, and of these guard columns 13, a sprinkler head (adjacent to the sprinkler head 1) ( A regulating body 14 for regulating the water discharge distance of fire-extinguishing water discharged from the sprinkler head 1 in a specific direction (the direction of the adjacent sprinkler head) is attached / detached between the two guard struts 13 and 13 facing each other (not shown). It is provided as possible. The guard column 13 is fixed to a flange portion 11 provided on the outer periphery of the lower end portion of the cylindrical portion 10.
[0009]
Here, a front view of the regulating body 14 is shown in FIG. 3A, and a plan view and a bottom view of the regulating body 14 are shown in FIGS. 3B and 3C, respectively. As shown in the figure, the regulating body 14 includes a top plate 15 fixed to the flange portion 11 of the head protector 9 by a double-sided adhesive tape (not shown), and a pair of right and left provided at both ends of the top plate 15. The side plates 16 and 16 are fixed to the side surface of the guard column 13 by double-sided adhesive tape.
Moreover, the regulation body 14 is provided with the water discharge direction control boards 17a, 17b, 17c which control the water discharge direction of the fire-extinguishing water diagonally downward, and these water discharge direction control boards 17a, 17b, 17c have a space | interval in the up-down direction. Both ends are fixed to the side plates 16 and 16.
In FIGS. 1 and 2, reference numeral 18 denotes a shield plate that closes the head mounting hole 20.
[0010]
According to such a configuration, the fire-extinguishing water discharged toward the adjacent sprinkler head among the fire-extinguishing water sprayed from the sprinkler head 1 is the water discharge direction regulating plates 17a and 17b of the regulating body 14 provided in the head protector 9. 17c, and the water discharge direction restricting plates 17a, 17b, 17c restrict the water discharge direction of the fire-extinguishing water obliquely downward as indicated by an arrow A shown in FIG. Therefore, in the first embodiment described above, the water discharge distance of the fire-extinguishing water discharged in a specific direction from the sprinkler head 1 is limited, so that the fire-extinguishing water discharged from the sprinkler head 1 is prevented from falling on the adjacent sprinkler head. It is possible to fully demonstrate the intended fire fighting capability.
[0011]
In the above-described embodiment, the restrictor 14 is detachably attached to the head protector 9 by a double-sided adhesive tape or the like to restrict the water discharge distance of the fire extinguishing water, so the head protector 9 is attached to the sprinkler head 1. The restricting body 14 can be attached to the head protector 9 later, and the water discharge distance of the fire-extinguishing water discharged from the sprinkler head 1 in a specific direction can be reliably restricted by the restricting body 14.
Furthermore, in the above-described embodiment, the water discharge distance of the water for fire extinguishing is restricted simply by providing the head protector 9 with the restricting body 14, so that the present invention can also be applied to existing sprinkler fire extinguishing equipment.
In the embodiment described above, since the water discharge direction restricting plates 17a, 17b, and 17c for restricting the water discharge direction of the fire-extinguishing water obliquely downward are provided, the sprinkler head 1 is different from the sprinkler head 1 even when the sprinkler head 1 is attached differently. The sprinkling distance of fire extinguishing water discharged in a specific direction can be regulated.
[0012]
In the above-described embodiment, the regulating body 14 is attached to the head protector 9 by the double-sided adhesive tape to regulate the water discharge distance of the fire-extinguishing water discharged from the sprinkler head 1 in a specific direction. The restricting body 14 may be integrally formed. The restricting body 14 is not limited to the structure described above, and may be any structure that limits the direction in which the fire-extinguishing water passes, such as a lattice shape or a honeycomb shape.
[0013]
Next, a second embodiment of the present invention will be described with reference to FIG. In FIG. 4, reference numeral 21 denotes a socket provided in a fire-fighting water supply pipe (not shown), and a sprinkler head 22 is connected to the socket 21 through a head mounting hole 24 drilled in a ceiling 23 in the room.
[0014]
The sprinkler head 22 includes a head main body 25 and a deflector 27 that radially sprays fire-extinguishing water discharged from the water outlet 26 of the head main body 25. The head main body 25 is made of a resin that closes the head mounting hole 24. A sealing plate 28 is attached.
FIG. 4 shows a state in which fire-fighting water is discharged from the sprinkler head 22 that is activated by the heat of the fire.
[0015]
The sealing plate 28 has a cylindrical portion 29 inserted into the head mounting hole 24, and an external thread formed on the head main body 25 of the sprinkler head 22 is formed on the inner peripheral surface of the cylindrical portion 29. A female screw portion 30 is formed to be screwed into the portion. Further, the sealing plate 28 has a circular plate portion 31 on the outer periphery of the lower end of the cylindrical portion 29, and the outer edge portion of the plate portion 31 extends from the sprinkler head 22 in a specific direction (the sprinkler head 22 There is provided a regulating body 32 that regulates the water discharge distance of fire-extinguishing water discharged in the direction of the sprinkler head adjacent to the water.
[0016]
The restricting body 32 includes a connecting portion 33 provided on the outer edge of the plate portion 31 and a plate-like body 34 extending downward from the tip of the connecting portion 33, and is integrated with the sealing plate 28. Is formed.
[0017]
According to such a configuration, the fire-extinguishing water discharged toward the adjacent sprinkler head among the fire-extinguishing water sprinkled from the sprinkler head 22 is the plate-like body of the regulating body 32 provided on the sealing plate 28. 34, and the water discharge distance is regulated by the plate-like body 34, so that the water for extinguishing fire discharged from the sprinkler head 1 can be prevented from falling on the adjacent sprinkler head, thereby sufficiently achieving the intended fire extinguishing capability. It can be demonstrated.
[0018]
In the second embodiment described above, the regulating body 32 is provided at the outer edge portion of the plate portion 31. However, the regulating body 32 may be provided at the intermediate portion of the plate portion 31. In this case, the regulating body 32 may be provided on the plate portion 31 by integral molding. Further, a through groove may be provided in the plate portion 31, and the regulating body 32 may be inserted into the through groove from the back surface side and attached.
In the second embodiment described above, the sealing plate 28 is engaged with and supported by the sprinkler head 22, but a through hole is formed in the plate portion 31 of the sealing plate 28. Then, the sealing plate 28 may be fixed to the ceiling by screwing a mounting screw into the ceiling from the through hole.
In the second embodiment described above, the plate-like body 34 is used as the regulating body 32. However, even if the regulating body 14 as shown in FIG. 3 is provided on the lower surface of the sealing plate 28, the first body 34 is used. And the effect similar to 2nd Embodiment can be acquired.
[0019]
When the head mounting hole 24 is closed with the sealing plate 28, a plurality of restricting bodies 32 are provided at a plurality of locations in the plate portion 31 of the sealing plate 28 as shown in FIG. After attaching the sealing plate 28 to the ceiling, the unnecessary restricting body 32 may be separated from the sealing plate 28 with a cutter or the like. In this way, the positioning of the restricting body 32 is facilitated. Thus, it is possible to reliably prevent the fire-fighting water discharged from the sprinkler head 21 from falling on the adjacent sprinkler head.
Further, a regulating body 14 as shown in FIG. 3 is provided at a plurality of locations on the lower surface of the sealing plate 28, and an unnecessary regulating body 14 is attached to the ceiling after the sealing plate 28 is attached to the ceiling. May be separated from the sealing plate 28. In this way, the regulating body 14 can be easily positioned, and the fire-extinguishing water discharged from the sprinkler head 21 is applied to the adjacent sprinkler head. It can be surely prevented from falling down.
[0020]
FIG. 6 is a conceptual diagram when the sprinkler fire extinguishing equipment shown in FIG. 1 or FIG. 4 is installed in a living room R of a house, for example, and two sprinkler heads 40 are spaced apart from the ceiling of the elongated living room R. Is provided.
In FIG. 6, W0 indicates a regular water spray pattern of fire extinguishing water sprayed from the sprinkler head 40. When the regulating body 14 or 32 is not provided, when the door D is closed by a fire, Watering is performed in the pattern of W0.
When the door D is opened in this state, the water spray pattern changes from W0 to W1 because it escapes to the corridor and the adjacent room through the door D in which the thermal airflow due to the fire is opened.
On the other hand, in the case of the first and second embodiments described above, only the watering pattern in the adjacent sprinkler head direction is changed from W0 to W2. Therefore, even if the door D is opened during watering by the watering pattern W2 at the time of a fire, the watering pattern will only change from W2 to W0, and water droplets will not be applied to the adjacent sprinkler heads.
Note that the watering pattern is W2 only in the direction of the adjacent sprinkler head, and the watering pattern in the other directions is still W0, so it is suitable for furniture, curtains, shojis, etc. As usual, watering is performed.
[0021]
【The invention's effect】
As described above, according to the present invention, it is possible to prevent the fire-fighting water sprayed from the sprinkler head from falling on the adjacent sprinkler head, and to fully exhibit the intended fire-fighting capability.
[Brief description of the drawings]
FIG. 1 is a diagram showing a first embodiment of the present invention, and is a front view of a sprinkler head provided on an indoor ceiling and a head protector that protects the head from external force.
FIG. 2 is a cross-sectional view of the sprinkler head and the head protector shown in FIG.
FIGS. 3A and 3B are diagrams showing the regulating body shown in FIGS. 1 and 2, wherein FIG. 3A is a front view, FIG. 3B is a plan view, and FIG. 3C is a bottom view;
FIG. 4 is a view showing a second embodiment of the present invention, and is a cross-sectional view of a sprinkler head provided on an indoor ceiling and a sealing plate attached to the head.
FIG. 5 is a bottom view of a sealing plate.
FIG. 6 is a diagram for explaining a water spray pattern of fire extinguishing water sprayed from a sprinkler head.
[Explanation of symbols]
1, 22 Sprinkler head 2, 21 Socket 9 Head protector 14, 32 Restrictor 20, 24 Head mounting hole 28 Sealing plate

Claims (3)

In the sprinkler fire extinguishing equipment equipped with a head protector that protects the sprinkler head provided on the ceiling in the room from external force,
The head protector has a plurality of guard posts that are formed so as to surround the deflector of the sprinkler head and are spaced apart from each other on the outer periphery of the sprinkler head when the sprinkler head is operating. A sprinkler is provided between the guard struts corresponding to a specific direction of the sprinkler head so as to be detachable so as to detachably regulate a water discharge distance of fire-extinguishing water discharged in the specific direction from the sprinkler head. Fire extinguishing equipment. In a sprinkler fire extinguishing equipment having a sprinkler head connected to a fire-extinguishing water supply pipe through a head mounting hole drilled in an indoor ceiling,
Sprinklers are provided in a plurality of locations on a sealing plate that closes the head mounting holes so as to be detachable from regulating bodies that regulate the discharge distance of fire-fighting water discharged in a specific direction from the sprinkler head. Fire extinguishing equipment. The sprinkler fire extinguishing equipment according to claim 1 or 2, wherein the restriction body includes a plurality of water discharge direction restriction plates that restrict the water discharge direction of the fire-extinguishing water obliquely downward.

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