JP2019154781A - Sprinkler head - Google Patents

Abstract

To install a sprinkler head to a wall surface without damaging design property of an installation site.SOLUTION: A head movable part is assembled to a head body 12 embedded and installed on a wall surface 11, in a normal time when water for fire fighting is not supplied, an outside is flush to the wall surface 11, and when water for fire fighting is supplied, a water release outlet is positioned forward of the wall surface 11 for sprinkling the water for fire fighting. The head movable part comprises a rotor head 20 which has a flat surface 20a formed by beveling a part of an outer peripheral face, in a rotor chamber 21 of the head body 12, in a manner of capable of rotating by a shaft 22, in a normal time, the rotor head 20 is at an initial position where the flat surface 20a is flush to the wall surface 11, and when the water for fire fighting is supplied, the rotor head 20 is rotated and is positioned at a water release position where the water release outlet 26 is exposed from the wall surface 11 for sprinkling water.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a sprinkler head that is horizontally attached to a wall surface such as an atrium space with a high ceiling and has a water outlet.

  2. Description of the Related Art Conventionally, a side wall open type sprinkler head installed horizontally on a wall surface such as a high ceiling atrium space is known.

  5A and 5B are explanatory views showing a conventional sprinkler head known as an open type. FIG. 5A shows a half section viewed from the side, and FIG. 5B shows a front view. As shown in FIG. 5, the conventional sprinkler head 200 is installed on the wall surface 201 of the protection section, an upper plate 206 is disposed on the upper part of the water outlet 204 of the head body 202, and a deflector 208 is disposed in front of the water outlet 204. Has been placed.

  When the fire detector detects a fire and issues a fire, the sprinkler head 200 is opened from a simultaneous opening valve provided in a pipe for the head main body 202 and supplied with water for extinguishing water. The fire-extinguishing water is made to extinguish by colliding with the deflector 206 and scattering.

  In addition, the sprinkler is equipped with a thermal decomposition part and a deflector that closes the water outlet, and the thermal decomposition part is decomposed and dropped by the heat generated when a fire breaks out to open the water outlet, and the fire-fighting water sprayed from the water outlet is deflected. Sprinkler heads that are caused to collide with and scatter are also known.

JP 2006-110187 A JP 2006-191961 A

  However, in such a conventional sprinkler head, it is installed on the wall surface in the protective section and exposed to the user's line of sight, and the facility of a high design such as a high ceiling atrium space is required. There is a problem that greatly impairs the design.

  An object of this invention is to provide the sprinkler head which enables the installation to a wall surface, without impairing the design property of an installation place.

(Sprinkler head)
The present invention provides a sprinkler head attached to a wall surface.
A head body embedded in a wall surface;
A head movable part that is incorporated in the head body and is normally flush with the wall surface when fire extinguishing water is not supplied, and when the water for fire extinguishing is supplied, the water outlet is positioned in front of the wall surface to sprinkle the fire extinguishing water. ,
Is provided.

(Head moving part using rotor head)
The head body is provided with a semi-cylindrical rotor chamber opened in the wall surface,
The rotor room has an outlet for water for fire extinguishing,
The head moving part
A rotor head that is rotatably provided in the rotor chamber, has a part of the outer peripheral surface as a flat surface, and has an inflow port and a water discharge port that communicate with each other at different positions on the outer peripheral surface excluding the flat surface;
In normal times when there is no fire water supply, the flat surface of the rotor head is almost flush with the wall surface, and the water discharge port is held at the initial position facing the outlet of the rotor chamber. A positioning structure that is exposed from the wall surface and that the inflow port rotates to a water discharge position opposite to the outflow port of the rotor chamber;
Is provided.

(Rotor head turbine blade structure)
The rotor head has a water outlet on the outer peripheral surface near one side of the flat surface and an inlet on the outer peripheral surface near the opposite side of the flat surface, and the outer peripheral surface between the inlet and the water outlet and the outer periphery. A turbine blade structure that rotates the rotor head toward the water discharge position by supplying fire-extinguishing water from the head body is provided on the side surface that follows the surface.

(Waterwheel blade structure with radial taper grooves)
In the turbine blade structure of the rotor head, a plurality of tapered grooves are formed radially from the side wall of the rotor head toward the outer peripheral surface, and lateral grooves that follow the tapered groove are formed on the outer peripheral surface.

(Rotor head inlet seal)
A seal member that seals a gap between the rotor head and the inlet of the rotor head is provided at the outlet of the outlet formed in the rotor chamber.

(Spring or weight for initial position return)
The rotor head includes an urging member or a weight that returns to an initial position when the supply of fire-extinguishing water is stopped.

(Head moving part using a movable deflector)
The head body is located inside the mounting hole that opens in the wall surface.
The head movable part is pivotally supported at one end by the opening of the mounting hole in front of the head body, and is normally flush with the wall surface when there is no supply of fire-fighting water. It was set as the initial position which closes an opening, and when it was supplied fire extinguishing water, it was turned to the water discharging position which protruded from the wall surface, and it was set as the movable deflector which received the contact of fire extinguishing water discharged from the head body, and scattered It is characterized by.

(Spring or weight for initial position return)
The movable deflector includes an urging member or a weight that returns to the initial position when the supply of fire-extinguishing water is stopped.

(Basic effect)
The present invention relates to a sprinkler head attached to a wall surface, a head main body embedded in the wall surface, and incorporated in the head main body, and when the water for extinguishing water is not supplied, the outside is flush with the wall surface in normal times. When the water is supplied, the water outlet is located in front of the wall and the head movable part that sprays water for fire extinguishing is provided. The sprinkler head is melted as a part of the wall surface by closing the water outlet so that it becomes uniform, and even if the side wall open type sprinkler head is installed on the wall surface, the design of the installation location is impaired. There is nothing. In addition, since the closed sprinkler head is embedded in the wall surface and does not protrude to the outside, it can be reliably prevented from being damaged by being hit by cleaning or the like.

(Effects of head moving part using rotor head)
Further, the head body is provided with a semi-cylindrical rotor chamber opened in the wall surface, the rotor chamber is provided with an outlet for water for fire extinguishing, and the head movable portion is provided rotatably in the rotor chamber, A part of the outer peripheral surface is a flat surface, and the rotor head is formed with an inflow port and a water discharge port that communicate with each other at different positions on the outer peripheral surface excluding the flat surface. When the surface is substantially flush with the wall, the outlet is held at the initial position facing the outlet of the rotor chamber, and when fire-fighting water is supplied, the outlet is exposed from the wall, and the inlet is the outlet of the rotor chamber A positioning structure that rotates to the water discharge position opposite to the wall is provided, so it can be embedded in the wall surface by a compact structure using a rotor head and can be set to the initial position where the outside is flush with the wall surface. Time The outlets in the rotor head by the supply of extinguishing water is rotated it can be sprinkled fire extinguishing water is protruded to the outside of the wall.

(Effects of rotor blade blade structure)
In addition, the rotor head has an outlet opening on the outer peripheral surface near one side of the flat surface and an inlet on the outer peripheral surface near the opposite side of the flat surface, and the outer peripheral surface between the inlet and the water outlet The water turbine blade structure that rotates the rotor head toward the water discharge position by supplying water for fire extinguishing from the head main body is provided on the side surface following the outer peripheral surface, so that the fire extinguishing from the head main body to the water discharge port side of the rotor head at the initial position is provided. When irrigation water is supplied and the rotor head starts to rotate, the water turbine blade structure formed following the water discharge port is hit by the fire extinguishing water supplied from the head body, and the rotation of the rotor head to the water discharge position is urged, With the supply of fire-extinguishing water, the rotor head can be reliably and quickly rotated to the water discharge position, and fire-extinguishing water can be sprayed from the water outlet that protrudes from the wall surface.

(Effect of turbine blade structure by radial taper groove)
In addition, the rotor head blade structure of the rotor head is formed with a plurality of tapered grooves radially from the side wall of the rotor head toward the outer peripheral surface and lateral grooves that follow the tapered groove are formed on the outer peripheral surface. A turbine blade structure for rotating to a water discharge position can be provided easily and easily.

(Effect of sealing the rotor head inlet)
In addition, since a seal member is provided at the outlet opening formed in the rotor chamber to seal the gap between the rotor head inlet and the opposite rotor head inlet, the rotor head rotates to the water outlet position. In addition, it is possible to reliably prevent the water for fire extinguishing supplied from the outlet of the rotor chamber to the inlet of the rotor head from leaking from the gap around the rotor head.

(Spring or weight for initial position return)
Further, since the rotor head is provided with a biasing member or weight that returns to the initial position when the supply of fire-extinguishing water is stopped, the rotor head rotated to the water discharge position is biased by a spring or the like when the supply of fire-extinguishing water is stopped. It is possible to automatically return to the initial position where it closes to the wall surface and is substantially flush with the weight of the member or weight by the weight.

(Effect of head moving part using movable deflector)
The head main body is disposed inside a mounting hole opened in the wall surface, and the head movable portion is pivotally supported at one end by the opening of the mounting hole in front of the head main body, During normal periods when there is no supply, the opening of the mounting hole is closed so that it is substantially flush with the wall surface, and when fire-fighting water is supplied, it is rotated to the water discharge position protruding from the wall surface and discharged from the head body. Because it is a movable deflector that receives and disperses the fire-extinguishing water, it has a simple structure in which the movable deflector can be opened and closed at the opening of the mounting hole of the head body provided on the wall surface. The opening can be closed to the initial position to be flush with the wall surface, and the fire deflecting water can be turned to the outside of the wall surface by the supply of fire-extinguishing water in the event of a fire to spray the fire-extinguishing water

  Further, when a spring is used for the head movable part, the water discharge direction and the water spray distribution may be uneven depending on the condition of the water pressure, but in the present invention, the contact with the fire-extinguishing water discharged from the head body is received. The movable deflector is rotated to the water discharge position, and the water discharge direction and water spray distribution can be stabilized.

(Effects of spring or weight for initial position return)
In addition, since the movable deflector includes an urging member or weight that returns to the initial position when the supply of fire-extinguishing water is stopped, the movable deflector that has been rotated to the water discharge position is attached with a spring or the like when the supply of fire-extinguishing water is stopped. It is possible to automatically return to the initial position where it closes to the wall surface and is substantially flush with the force of the biasing member or the weight by the weight.

Explanatory drawing showing the first embodiment of the springer head Explanatory drawing which showed the water discharge operation | movement of the sprinkler head of FIG. Explanatory drawing which showed 2nd Embodiment of a springer head. Explanatory drawing which showed the water discharge operation | movement of the sprinkler head of FIG. Explanatory drawing showing a conventional sprinkler head

[First Embodiment of Sprinkler Head]
FIG. 1 is an explanatory view showing a first embodiment of a springer head, FIG. 1 (A) shows a cross section viewed from the side, FIG. 1 (B) shows a rotor head in cross section, and FIG. C) shows the front.

(Construction)
As shown in FIG. 1, the side-wall-opening type sprinkler head 10 of this embodiment includes a head body 12, a rotor head 20, and a front cover 25.

  The head main body 12 is disposed inside the mounting hole of the wall surface 11, and is provided with a semi-cylindrical rotor chamber 21 opened to the wall surface 11 side. An inflow port 14 is formed in the rear and the front rotor chamber 21 opens. Outflow ports 16 are formed and communicated with each other through a flow path 18.

  The rotor head 20 is a disk-shaped member having a flat surface 20a by chamfering a part of the outer peripheral surface 20b. The rotor head 20 is rotatably provided in the rotor chamber 21 by a shaft 22 and is opened to the front of the head body 12. The flat surface 20a is incorporated so as to be flush with the wall surface 11 by screwing the front cover 25 into 12a.

  As shown in the cross section of FIG. 1 (B), the rotor head 20 has a water discharge port 26 opened in a wedge shape on the outer peripheral surface 20b near the upper side of the flat surface 20a, and the outer peripheral surface 20b near the lower side of the flat surface 20a. An inflow port 24 is formed in the inner passage 24 and communicated by the internal flow path 28 therebetween.

  A wind turbine blade structure 30 is formed on the side surface between the inlet 24 and the water discharge port 26 of the rotor head 20 and the outer peripheral surface 20b. The water turbine blade structure 30 is formed with a plurality of tapered grooves 30a radially from the center side of the side surface of the rotor head 20 toward the outer periphery, forming lateral grooves 30b on the outer peripheral surface 20b, and supplied from the outlet 16 of the head body 12. Fire extinguishing water is received by the turbine blade structure 30 to generate a force for rotating the rotor head 20 counterclockwise.

  Further, a seal 32 is disposed at the outlet 16 that is opened in the rotor chamber 21 formed in the head body 12, and when the rotor head 20 rotates and the inlet 24 faces the outlet 16 of the head body 12, The gap between the rotor head 20 and the rotor chamber 21 is sealed to prevent water leakage from around the rotor head 20.

  The rotor head 20 is positioned at the initial position shown in the drawing and the water discharge position shown in FIG. 2 by the positioning structure. The rotor head 20 is positioned to the initial position by the edge 20c of the rotor head 20 coming into contact with the stopper step 21a of the rotor chamber 21 by a coil spring (not shown) provided on the shaft 22, for example.

  The rotor head 20 is positioned at the water discharge position by the edge 20d of the rotor head 20 rotated by the supply of fire-extinguishing water coming into contact with the stopper step portion 21b of the rotor chamber 21.

  Here, in the sprinkler head 10 of the present embodiment, the flat surface 20a of the rotor head 20 is the front cover so that the rotor head 20 is in the initial position shown in the figure and the wall surface 11 is flush with the water when the fire-fighting water is not supplied. The opening of 25 is closed so as not to be seen from the outside, and the sprinkler head 10 is melted as a part of the wall surface 11. Even if the sprinkler head 10 is installed on the wall surface 11, the design property of the installation place is improved. There is no loss.

(Water discharge operation)
FIG. 2 is an explanatory view showing the water discharge operation of the sprinkler head of FIG. 1, FIG. 2 (A) shows a cross section viewed from the side, and FIG. 2 (B) shows the rotor head in cross section.

  When a fire occurs in a room where the mold sprinkler head 10 of this embodiment is installed and a fire detector is triggered, a simultaneous opening valve provided in a pipe connected to the inlet 14 of the head body 12 is controlled to open. At the same time, the fire-extinguishing pump facility is activated, and fire-sprinkling water is supplied to the sprinkler head 10.

  Fire extinguishing water supplied to the inlet 14 of the head body 12 shown in FIG. 1 enters the rotor chamber 21 from the outlet 16 through the flow path 18, and the outlet of the rotor head 20 disposed in the rotor chamber 21. 26, and thus the rotor head 20 is urged and rotated counterclockwise.

  When the rotor head 20 starts to rotate, the turbine blade structure 30 is positioned on the outlet 16 side, so that the fire-extinguishing water from the outlet 16 strikes the turbine blade structure 30 and applies a rotational force to the rotor head 20. The head 20 is stopped by rotating to the water discharge position where the edge 20d shown in FIG. 2 abuts against the stopper step 23b, the water outlet 26 rotates to a position protruding forward from the wall surface 11, and water for fire extinguishing is sprinkled from the water outlet 26. Is done.

  At this time, the inlet 24 of the rotor head 20 is located in the seal 32 of the outlet 16 provided in the rotor chamber 21, and the fire-extinguishing water from the outlet 16 of the head body 12 does not leak around the rotor head 20. The water is supplied from the inflow port 24 through the internal flow path 28 to the discharge port 26 and sprinkled.

  When the fire is extinguished and the supply of fire-fighting water is stopped, the rotor head 20 that has been rotated to the water discharge position returns to the initial position shown in FIG. The opening of the front cover 25 is closed by the flat surface 20a to obtain a closed position that is flush with the wall surface 11.

[Second Embodiment of Sprinkler Head]
FIG. 3 is an explanatory view showing a second embodiment of the springer head, FIG. 1 (A) shows a cross section viewed from the side, and FIG. 1 (B) shows a front view.

(Construction)
The sprinkler head 100 of this embodiment includes a head main body 102, a movable deflector 108, and a rotating plate 110. The head main body 102 is disposed inside the mounting hole 101 of the wall surface 11, an inflow port 104 is formed at the rear, and a water discharge port 106 is formed at the front.

  A rotating plate 110 is rotatably supported on an opening edge of the mounting hole 101 in front of the head body 102 via a hinge 112 with respect to an internal fixing member 114. One end of the movable deflector 108 is fixed to the lower end, which is the inside of the tip of the rotating plate 110, in a direction substantially perpendicular to the rotating plate 110. The movable deflector 108 has a head cone 116 disposed on the inner side, and slit holes are formed radially on the plate surface around the head cone 116.

  During normal times when water for fire extinguishing is not supplied to the head main body 102, the rotating plate 110 closes the opening of the wall surface 11 by an urging member such as a coil spring (not shown) provided on the hinge 112, so It is placed at the initial position where the plate surface is flush. At this time, the movable deflector 108 is located inside the mounting hole 101.

  For this reason, in the sprinkler head 100 of this embodiment, the rotating plate 110 is at the initial position shown in the figure when the water for fire extinguishing is not supplied, and the plate surface of the rotating plate 110 is flush with the wall surface 11 in the mounting hole 101. The opening is closed so that it cannot be seen from the outside, so that the sprinkler head 100 is melted as a part of the wall surface 11, and even if the sprinkler head 100 is installed on the wall surface 11, the design property of the installation place is impaired. There is no.

(Water discharge operation)
4 is an explanatory view showing the water discharge operation of the sprinkler head of FIG. 3, FIG. 4 (A) shows a cross section seen from the side, and FIG. 4 (B) shows the front.

  When a fire occurs in a room where the sprinkler head 100 of this embodiment is installed and a fire detector is triggered, the simultaneous release valve provided in the pipe connected to the inlet 104 of the head body 102 is controlled to open. In addition, the fire-extinguishing pump facility is activated, and fire-extinguishing water is supplied to the sprinkler head 100.

  The fire-extinguishing water supplied to the inlet 104 of the head main body 102 shown in FIG. 3 is drained forward from the water outlet 106, and the fire-extinguishing water hits the rotating plate 110 closing the opening of the mounting hole 101. As shown in FIG. 4, the rotating plate 110 is rotated upward, the movable deflector 108 is moved to the forward water discharge position protruding from the wall surface 11, and the fire-extinguishing water discharged from the water discharge port 106 of the head main body 102 is movable. It collides with the deflector 108 and is scattered, and water for fire extinguishing is sprinkled.

  At this time, since the rotating plate 110 is positioned above the fire-extinguishing water discharged from the head main body 102, it functions as a splash prevention plate that prevents the fire-extinguishing water discharged from splashing upward.

  When the fire is extinguished and the supply of fire-fighting water is stopped, the rotating plate 110 that has been rotated to the water discharge position is the initial position shown in FIG. 3 with the force of the coil spring (not shown) provided on the hinge 112 and the weight of the movable deflector 108. The opening of the mounting hole 101 is closed by the rotating plate 110 so as to be flush with the wall surface 11.

[Modification of the present invention]
(Head moving part)
In the above embodiment, the head movable part using a rotor head or a movable deflector is taken as an example of the head movable part. However, the present invention is not limited to this, and the outside is flush with the wall surface in normal times when fire-fighting water is not supplied. The structure of an appropriate head movable part is included in which when the water for fire extinguishing is supplied, the water outlet is located in front of the wall surface and the water for fire extinguishing is sprinkled.

(Locking structure at the water discharge position)
In the above embodiment, the rotor head or the movable deflector that functions as the head movable portion is configured to return to the initial position when the water discharge is stopped, but the rotor head or the movable deflector is locked to the water discharge position by a latch or the like. Anyway. As a result, the water spray distribution from the head can be ensured, and it can be confirmed after the water discharge has stopped.

(Other)
The present invention is not limited to the above-described embodiment, includes appropriate modifications that do not impair the object and advantages thereof, and is not limited by the numerical values shown in the above-described embodiment.

10, 100: Sprinkler head 11: Wall surface 12: Head body 14, 24: Inlet 16: Outlet 18, 28: Flow path 20: Rotor head 20a: Flat surface 20b: Outer peripheral surface 20c, 20d: Edge 21: Rotor chamber 21a, 21b: Stopper step 22: Shaft 23a, 23b: Stopper step 25: Front cover 26, 106: Water outlet 30: Turbine blade structure 30a: Tapered groove 30b: Horizontal groove 32: Seal 101: Mounting hole 108: Movable deflector 110: Rotating plate 112: Hinge 114: Fixing member 116: Head cone

Claims (8)

In sprinkler heads attached to the wall,
A head body embedded in a wall surface;
A head that is incorporated in the head main body and is normally flush with the wall surface when fire-extinguishing water is not supplied, and when the fire-extinguishing water is supplied, the water outlet is located in front of the wall surface and sprinkles the fire-extinguishing water. Moving parts;
A sprinkler head characterized in that is provided.
The sprinkler head according to claim 1,
The head body is provided with a semi-cylindrical rotor chamber that opens to the wall surface,
The rotor chamber is formed with an outlet for water for fire extinguishing,
The head movable part is
A rotor head that is rotatably provided in the rotor chamber, has a part of the outer peripheral surface as a flat surface, and is formed with an inlet and a water outlet that communicate with each other at different positions on the outer peripheral surface excluding the flat surface;
In normal times when there is no supply of fire-extinguishing water, the flat surface of the rotor head is substantially flush with the wall surface, the water outlet is held at an initial position facing the outlet of the rotor chamber, and fire-extinguishing water is supplied. A positioning structure in which the water outlet is exposed from the wall surface and the inflow port is rotated to a water discharge position relative to the outflow port of the rotor chamber;
A sprinkler head characterized in that is provided.
The sprinkler head according to claim 2,
The rotor head opens the water outlet on an outer peripheral surface close to one side of the flat surface and opens the inlet on an outer peripheral surface close to the opposite side of the flat surface. A sprinkler head characterized in that a water turbine blade structure for rotating the rotor head toward the water discharge position by supplying fire-extinguishing water from the head main body is provided on an outer peripheral surface between them and a side surface following the outer peripheral surface.
4. The sprinkler head according to claim 3, wherein the turbine blade structure of the rotor head has a plurality of tapered grooves formed radially from a sidewall of the rotor head toward an outer peripheral surface, and the tapered groove is formed on the outer peripheral surface. A sprinkler head characterized in that a lateral groove is formed.
3. The sprinkler head according to claim 2, wherein a seal member that seals a gap between the opening of the outflow opening that opens in the rotor chamber and the inflow opening of the rotor head that is opposed to the water discharge position. A sprinkler head characterized in that is provided.
The sprinkler head according to claim 2,
The sprinkler head, wherein the rotor head includes a biasing member or a weight that returns to the initial position when the supply of fire-fighting water is stopped.
The sprinkler head according to claim 1,
The head body is disposed inside a mounting hole opened in the wall surface,
The head movable part is pivotally supported at one end of the opening of the mounting hole in front of the head body so that the head movable part is substantially flush with the wall surface in a normal time when there is no supply of fire extinguishing water. A movable deflector that is an initial position for closing the opening of the hole, is rotated to a water discharge position protruding from the wall surface when fire-extinguishing water is supplied, and receives and abuts fire-extinguishing water discharged from the head body; Sprinkler head characterized by that.
The sprinkler head according to claim 7,
The sprinkler head, wherein the movable deflector includes an urging member or a weight that returns to the initial position when the supply of fire-fighting water is stopped.

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