KR20060055916A - Early Response Circular Sprinkler Heads - Google Patents

Abstract

The present invention relates to an early reaction circular sprinkler head, which is installed so as to be exposed to the ceiling of the building so that the firefighters can be quickly sprayed to quickly extinguish the fire in the event of a fire.

To this end, the body 20 is formed with a water outlet 21, the plunger 30 is installed to maintain the airtight on the bottom surface of the body to close the water outlet and the screw hole 31 is formed in the lower center, and the screw hole The set screw 50 is screwed and the plurality of injection holes 13 are formed at the same time as the screw is screwed to the body and the inner peripheral surface of the through hole 15 formed in the lower center has a depth greater than the radius of the ball. A frame 10 having a receiving space 14 that is shallow and has upper and lower inclined surfaces 14a and 14b, a plurality of balls 70 positioned in the receiving space, and are provided directly below the plunger. It has an inner loading plate 40 which loads a ball located in a receiving space with a flange according to the rotation of the set screw, and a cutout 61 for accommodating a part of the ball. The outer loading plate 60, A heat collector 80 which is located directly below the outer loading plate and is formed of a plurality of heat collectors so as to quickly react to heat in the event of a fire, a fuse metal 90 installed inside the heat collector located at the lowermost of the heat collectors, Locking screw 100, which is screwed to the inner loading plate to integrate the inner loading plate, the outer loading plate, and the heat collector, and is installed between the outer loading plate and the heat collector to the outer loading plate when the heat collector senses heat. It is composed of an insulating washer 110 to prevent the conduction.

Description

Head of Circular Sprinkler having Early Reactivity             

Figure 1 is a longitudinal cross-sectional view showing a conventional circular sprinkler head

Figure 2 is a longitudinal cross-sectional view showing an embodiment of the present invention

Figure 3 is a longitudinal sectional view showing an operating state of the present invention

Figure 4 is a longitudinal cross-sectional view showing another embodiment of the present invention

Figure 5 is a partial longitudinal cross-sectional view showing another embodiment of the outer loading plate applied to the present invention

<Explanation of symbols for main parts of drawing>

10 frame 13 injection hole

14: accommodation space 14a, 14b: upper, downward slope

20: body 30: plunger

33: installation groove 35: seal

40: inner loading plate 42: recess groove

43: guide groove 44: flange

50: set screw 60: outer loading plate

61: incision 70: ball

80: heat collector 90: fuse metal

100: locking screw 110: insulating washer

300: elastic member

The present invention relates to an early reaction circular sprinkler head, and more particularly, to an early reaction circular sprinkler head which is installed to be exposed to the ceiling of a building so as to spray firefighters so as to extinguish fire quickly in the event of a fire. will be.

In general, sprinkler equipment is used to extinguish the fire by using fire water in case of fire, and it automatically detects and extinguish the fire at the same time. It is mandatory for many people to be installed in large, crowded buildings.

The sprinkler system is classified into a closed wet system, a dry system, and a Japanese spray system according to an operating method, and is classified into a general type and an early reaction type according to the response speed.

The sprinkler is designed to operate automatically when the temperature near the ceiling rises above a certain temperature due to the fire, but the sprinkler head, the attachment position, and the waterproofing amount depend on the type of building and the degree of interior. It is prescribed by fire law.

1 is a vertical cross-sectional view of a conventional sprinkler head, in which a frame 2 is screwed to a body 1 having a water outlet 1a, and a plurality of injection holes 2a are formed at a conical portion of the frame. .

The plunger 4 having the copper plate 3 inserted therein is installed in the body 1 and the frame 2, and the copper plate 3 inserted in the plunger has a wedge shape formed at the end of the water outlet 1a. It is connected to the projection 1b of and keeps airtightness.

An inner loading plate 5 having a flange 5a is provided at the bottom of the plunger 4, and a screw hole 5b is formed in the inner loading plate to which the set screw 6 is screwed.

In addition, an outer loading plate 7 is formed on the bottom of the inner loading plate 5, and an end thereof extends over the stepped portion 2b formed on the frame 2, and an inclined surface is disposed below the outer surface of the outer loading plate 7. (7a) is formed so that the horizontal portion extending from the inclined surface to extend over the step (2b), the upper surface of the periphery is formed with a wedge-shaped projection (7b) is the projection (7b) of the inner loading plate 7 It is connected to the bottom.

In addition, a lower portion of the outer loading plate 7 has a fuse metal 8 for integrating the formed outer loading plate, and a heat-sensitive copper plate 9 for dissolving the fuse metal in response to heat when a fire occurs on its outer peripheral surface. It is installed to be wrapped.

Therefore, when a fire occurs in a state where the circular sprinkler is installed in the state as shown in FIG. 1, since the heat air flows along the ceiling surface A, the temperature of the thermal copper plate 9 is increased, and thus, the inside of the thermal copper plate 9. Since the fuse metal 8 which is positioned at and integrates the outer loading plate 7 is dissolved, the outer loading plate 7 is separated from each other.

That is, the outer loading plate 7, in which the force is acting downward by the inner loading plate 5 in accordance with the rotation of the set screw 6 in the initial assembly process, has an integrated form upon dissolution of the fuse metal 8. Because of the loss, the inclined surface 7a and the wedge-shaped protrusion 7b are separated from the frame 2 while being opened to both sides.

After the outer loading plate 7 is separated from the frame 2 according to the fire, the inner loading plate 5 freely falls downward due to its own weight, so that the flange 5a is stepped by the step 2b of the frame 2. In this process, the plunger 4 also moves downward with the inner loading plate 5 to open the outlet 1a of the body 1, so that the firefighter is formed in the outlet 1a and the frame 2. Since the sprayed in all directions through a plurality of injection holes (2a) will be able to extinguish the fire.

However, the conventional circular sprinkler having such a structure requires that the thermal copper plate detects heat and dissolves the fuse metal located therein in case of a fire, so that the outer loading plate is released from the frame, so that the outer loading plate cannot be quickly released and the fire is suppressed early. There was a limit.

That is, even if a fire occurs, the cross-sectional area of the thermal copper plate that senses heat is limited, and the time taken to dissolve the fuse metal is delayed. Therefore, it takes a long time to detach the outer loading plate from the frame, thereby prematurely extinguishing the fire. There was a limit.

In addition, the outer loading plate, which is installed in the frame in a divided state and detached from the frame due to melting of the fuse metal, is pressed on the flange of the inner loading plate by the rotation of the set screw, and when the fuse metal is dissolved, only by the pressing force of the flange Since the outer loading plate and the inner loading plate cannot be quickly detached from the frame because they are separated from the step of the frame.

The present invention has been made in order to solve such a conventional problem, by improving the structure of the circular sprinkler to quickly detect the heat caused by the fire occurs by quickly leaving the outer loading plate and the inner loading plate from the frame of the fire The aim is to enable early evolution.

According to a form of the present invention for achieving the above object, the body is formed with a water outlet, the plunger is installed to maintain the airtight on the bottom surface of the body to close the water outlet and the screw hole is formed in the lower center, and the screw hole is screwed to the screw hole A plurality of injection holes are formed in the conical part while being screwed to the set screw and the body, and the inner circumferential surface of the through hole formed in the lower center has a depth smaller than the radius of the ball and has an upper and a downward inclined storage space. A frame having a plurality of balls, a plurality of balls positioned in the accommodation space, an inner loading plate installed directly below the plunger and applying a load to a ball having a flange located in the accommodation space as the set screw rotates, and a part of the ball. The outer loading plate which has a cutout portion for receiving and is released from the frame together with the ball in the event of a fire, Located directly below the outer loading plate and a plurality of heat collectors to quickly react to heat in the event of a fire, a fuse metal installed inside the heat collector located at the lowermost of the heat collectors, and screwed to the inner loading plate A locking screw for integrating the inner loading plate, the outer loading plate and the heat collector, and an insulating washer installed between the outer loading plate and the heat collector to prevent the heat collector from being conducted to the outer loading plate when the heat collector is sensitive to heat. An early response circular sprinkler head is provided.

Hereinafter, with reference to Figures 2 and 3 showing the present invention as an embodiment in more detail as follows.

Figure 2 is a longitudinal cross-sectional view showing an embodiment of the present invention and Figure 3 is a longitudinal cross-sectional view showing the operating state of the present invention, the present invention is a water outlet 21 in the center of the body 20 is screwed to the branch pipe 200 ) Is formed and the plunger 30 which closes the outlet port in a normal state is installed on the bottom of the body to maintain airtightness, and the set screw 50 is screwed to the lower center of the plunger 30. The pores 31 are formed.

Meanwhile, a seal 35 having an elastic force is installed between the body 20 and the plunger 30 so that the spout 21 is more securely closed by the elastic force of the seal 35 when the sprinkler is assembled. There is, but the seal 35 is more preferably a Teflon coating in consideration of corrosion.

The body 20 is screwed to the frame 10 is formed with a plurality of injection holes 13, the radius of the ball 70 on the inner peripheral surface of the through hole 15 formed in the lower center of the frame 10 The storage space 14 which is shallower and is provided with the upper and downward inclined surfaces 14a and 14b is formed.

The reason why the depth of the accommodation space 14 is set to be shallower than the radius of the ball 70 is that when the assembly of the parts, the ball 70 spans the accommodation space 14, and as a result of the fire, the outer loading plate 60 is framed. This is to allow the ball 70 to be quickly detached from the receiving space 14 when it is separated from the 10.

In other words, the sprinkler head to be able to spray the fireman more quickly.

An inner loading plate 40 is installed below the plunger 30 to apply a load to the ball 70 in which the flange 44 is located in the receiving space according to the rotation of the set screw 50. Immediately below 40, a cutout 61 is formed to accommodate a portion of the ball 70, and when the fire occurs, the outer loading plate 60 is separated from the frame 10 together with the ball 70. have.

Although the accommodation space 14 and the cutout 61 formed in the inner loading plate 40 and the outer loading plate 60 may be formed throughout, the equal intervals may be accommodated so that only a plurality of balls 70 may be accommodated. Since it may be formed as is not necessarily limited thereto.

Even if the cutout 61 formed in the outer loading plate 60 is formed as a step to accommodate the ball 70 as shown in FIG. 5, the outer loading plate 60 is separated from the frame 10 when a fire occurs. Although not much, it is more preferable that the inclined surface 61a is provided so that the outer loading plate 60 can be detached from the frame 10 more quickly.

That is, even if the set screw 50 is pulled out of the plunger 30 by the rotation of the set screw 50 in the unwinding direction and exerts a downward force on the inner loading plate 40, the force is not directly applied to the fuse metal 90. This is to minimize the working load (operating load) applied to the fuse metal 90 by being distributed to the outer loading plate 60 side by the inclined surface 61a.

On the other hand, the lower surface of the inner loading plate 40, the ball 70 is installed to be located in the receiving space 14 and the incision 61 in a state pressed in the flange 44 of the inner loading plate 40 is accommodated in the occurrence of a fire The guide groove 43 is formed to move more stably in the flange 44 formed on the inner loading plate 40 in the process of being separated from the space 14.

In addition, a heat collector 80 having a plurality of heat collectors 80 is installed directly below the outer loading plate 60 so as to quickly react with heat in the event of a fire, and lead Pb is formed inside the heat collector located at the lowermost of the heat collectors. The fuse metal 90 made of a main component is installed, and the outer loading plate 60 and the heat collector 80 are integrated by a locking screw 100 screwed to the inner loading plate 40.

At this time, a hole 101 is formed in the locking screw 100 so as to rotate the set screw 50 screwed to the plunger 30 using a tool such as a wrench (not shown). .

In the present invention configured as described above, it is more advantageous to install the elastic member 300 between the plunger 30 and the inner loading plate 40 to bias the inner loading plate 40 downward while the sprinkler head is assembled. Do.

This is because the inner loading plate 40 is pressed downward by the elastic member 300 at the time when the fuse metal 90 is dissolved due to the fire, the ball 70 and the outer loading plate 60 and the heat collector 80. This is to allow more rapid departure from the frame 10.

2 and 3 show the elastic member 300 as an embodiment of the present invention, the coil spring is applied, and an installation groove 33 is installed in the lower portion of the plunger 30 so that the elastic member 300 is stably installed. Although it is formed, the elastic member 300 may be placed in the installation groove 33 by applying the plate spring as shown in Figure 4 shown in another embodiment.

In addition, in one embodiment of the present invention to form a concave groove 42 in the upper surface of the inner loading plate 40 so that the head of the set screw 50 screwed to the plunger 30 is located in the concave groove 42 Consists of.

This is to ensure that the force of rotation of the set screw 50 is transmitted to the inner loading plate 40 stably in the process of adjusting the operating load applied to the fuse metal 90 by the rotation of the set screw 50. .

In the present invention, the vertical height H of the cutout 61 formed in the outer loading plate 60 should be set lower than the height h of the fuse metal 90.

As the fuse metal 90 is melted due to the fire, the ball 70 is connected to the inner loading plate 40 at the time when the outer loading plate 60 is freely dropped from the frame 10 together with the heat collector 80. The inner loading plate 40, the outer body integrated by the locking screw 100, by being quickly moved along the guide groove 43 formed on the bottom surface of the inner loading plate 40 through the outer loading plate 60. This is to allow the loading plate 60, the ball 70, and the heat collector 80 to be separated from the frame 10.

In addition, an insulating washer 110 is installed between the outer loading plate 60 and the heat collector 80, which is a phenomenon in which heat is conducted to the outer loading plate 60 when the heat collector 80 senses heat. To prevent the sprinkler from reacting quickly.

Referring to the operation of the present invention configured as described above is as follows.

First, in the state in which the sprinkler head of the present invention is assembled as shown in FIG. 2, the ball 70 is located in the receiving space 14 of the frame 10 and the cutout 61 of the outer loading plate 60. The inner loading plate 40, the outer loading plate 60, and the heat collector 80 integrated by the 100 are not separated from the frame 10.

Therefore, when the sprinkler head of the present invention is installed on the ceiling, only the frame 10 and the heat collector 80 are exposed to the lower part of the ceiling, and the water outlet 21 is closed by the seal 35 so that the fire water is not sprayed.

As such, when the fire occurs in the interior of the building after the installation of the sprinkler head is completed, the heat collector 80 is sensitive to heat in the process of moving the heat along the ceiling due to convection. 90) is dissolved, but in the present invention, since the heat collector 80 is formed of a plurality of plates, the fuse metal 90 is dissolved more quickly than the fuse metal of the conventional sprinkler head.

When the fuse metal 90 is dissolved in this manner, the outer loading plate 60 and the heat collector 80 positioned below the inner loading plate 40 by the installation height h of the fuse metal fall freely.

When the outer loading plate 60 and the heat collector 80 free fall as the fuse metal 90 dissolves, the plurality of balls 70 positioned inside the receiving space 14 of the frame 10 are inner. The inner loading plate 40 is released while being caught by the frame 10 because the upper and downward inclined surfaces 14a and 14b are quickly pulled out between the loading plate 40 and the outer loading plate 60.

Accordingly, the inner loading plate 40, the outer loading plate 60, the ball 70, and the heat collector 80 integrated by the locking screw 100 are separated from the frame 10 as shown in FIG. 3. Operation is instantaneously at the time the fuse metal 90 is melted.

As described above, the inner loading plate 40 in the process of detaching the inner loading plate 40, the outer loading plate 60, the ball 70, and the heat collector 80 from the furnace frame 10 of the fuse metal 90 ( Since the elastic member 300 presses 40 downward, the inner loading plate 40, the outer loading plate 60, the ball 70, and the heat collector 80 are more quickly released from the frame 10.

As such, after the inner loading plate 40, the outer loading plate 60, the ball 70, and the heat collector 80 are separated from the frame 10 as shown in FIG. 3, the outlet 21 of the body 20 is closed. Since the plunger 30 is freely dropped downward by its own weight to be spread over the frame 10, the high pressure fire water is discharged through the water outlet 21 to impinge on the plunger 30. 10 is evenly sprayed in all directions through the injection hole 13 formed in the fire will be able to quickly extinguish the initial fire.

As described above, the present invention has the following advantages over the prior art.

First, since the heat-sensitive means sensitive to heat according to the fire is made up of a plurality of heat collectors, the operating time of the sprinkler head due to the fire can be greatly reduced, thereby enabling early suppression of the fire.

Secondly, the inner loading plate, outer loading plate and heat collector, which are integrated by the locking screw, are located in the receiving space with upper and lower inclined surfaces. As a result, the outlet of the body can be opened more quickly because it is more quickly released from the receiving space.

Third, the inclined surface is formed in the cutout of the outer loading plate, so that the force applied to the fuse metal can be distributed by the inclined surface in the process of adjusting the operating load of the fuse metal according to the rotation of the set screw. Can be finely adjusted.

Fourth, an elastic member is installed between the plunger and the inner loading plate, so that the inner loading plate, the outer loading plate, the ball, and the heat collector can be released more quickly from the frame.

Fifth, a seal is installed between the body and the plunger, so that the airtightness of the outlet can be maintained more closely.

Claims (7)

A body having an outlet port, a plunger installed to maintain the airtightness at the bottom of the body to close the outlet port, and having a screw hole formed at the lower center thereof, a set screw screwed to the screw hole, and a cone portion simultaneously screwed to the body. A plurality of injection holes are formed in the inner peripheral surface of the through-hole formed in the lower center of the frame is shallower than the radius of the ball, the upper and downward inclined surface having a receiving space with a plurality of balls located in the receiving space and And an inner loading plate installed directly below the plunger to apply a load to the ball located in the receiving space according to the rotation of the set screw, and a cutout portion for accommodating a part of the ball and the frame together with the ball in case of fire. An outer loading plate deviating from the outer loading plate and located directly below the outer loading plate A heat collector composed of a plurality of heat collectors to quickly react to heat and heat, a fuse metal installed inside the heat collector located at the lowermost of the heat collectors, and an inner loading plate, an outer loading plate, and a heat screwed to the inner loading plate. An early reaction circular sprinkler head comprising a locking screw for integrating a collector and an insulating washer installed between the outer loading plate and the heat collector to prevent the heat collector from being conducted to the outer loading plate when the heat collector is sensitive to heat. The method of claim 1, Early response circular sprinkler head, characterized in that the elastic member is provided between the plunger and the inner loading plate. The method of claim 2, Early response circular sprinkler head, characterized in that the elastic member is a coil spring. The method of claim 2, Early response circular sprinkler head, characterized in that the elastic member is a dish spring. The method of claim 1, An early response circular sprinkler head, characterized in that the inclined surface is provided in the cut portion formed in the outer loading plate is connected to the inclined surface. The method of claim 1, Early response circular sprinkler head, characterized in that the seal is installed between the plunger and the outlet of the body to maintain the airtight seal. The method of claim 1, Early reaction type sprinkler head, characterized in that to form a recess groove in the upper surface of the inner loading plate so that the head of the set screw is located in the recess groove.

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