KR102306477B1 - angle type dry pendant sprinkler head - Google Patents

Abstract

The present invention relates to an angle-type dry pendent sprinkler head installed on the wall of a building to spray firefighting water in the event of a fire to suppress the fire at an early stage. It is made possible to install the dry pendant without winding the heating wire.
To this end, the present invention relates to a first dry pendant 10 connected to the branch pipe 93 and provided with a first flow path opening/closing means 20 to close the point connected to the branch pipe to maintain an empty space therein; , a withdrawal means 21 installed to be compressed on one side of the first flow path opening/closing means 20 , an elbow 30 coupled to one end of the first dry pendant 10 , and the inside of the elbow 30 . A power transmission means 40 installed on the pole to convert and transmit the force of the withdrawal means by 90°, and a second flow path coupled to the other end of the elbow 30 and operated by the force transmitted by the power transmission means 40 . A second dry pendant (60) provided with an opening/closing means (50), and first and second bushings (31) for coupling the first and second dry pendants (10, 60) to the elbow (30) so as to maintain airtightness 32, a frame 61 screwed to the second dry pendant 60 and having an open outlet, and is installed to be drawn out inside the frame 61, and a flange 71 is formed at one end, At the other end, an omnidirectional deflector 70 having a plurality of upwardly bent portions 74 to have a spray space 73 radially from the flat bottom surface 72, and an omnidirectional deflector installed on the exit side of the frame 61 (70) so as to be accommodated in the interior of the frame (61), characterized in that it is composed of a heat collector (80) that responds to fire.

Description

Angle type dry pendant sprinkler head {angle type dry pendant sprinkler head}

The present invention relates to a sprinkler head installed on the wall of a building to spray firefighting water in the event of a fire to suppress a fire at an early stage. It relates to a dry pendent sprinkler head.

In general, when the fuse (lead) of the sprinkler head attached to the upper part of the building, that is, the ceiling or wall, melts due to fire, the deflector falls as the heat collector is removed from the frame. It collides with the deflector and scatters throughout the ignition point, thus acting to extinguish the fire early.

These sprinklers are provided so that fire notification and fire extinguishing are performed automatically at the initial stage of ignition, and since they radiate fire water in a spray phase, they are highly effective in liquid fires.

In addition, it is suitable as a fire extinguishing system in an underground building where it is difficult to detect a fire or extinguish a fire or in an area where there are many inflammables (combustible substances), and the scope of application is very wide, such as automatic fire extinguishing at night can be expected.

And, although ordinary sprinklers usually operate at 67~180℃, it may vary depending on the type, and the location, arrangement, and amount of watering is regulated by the Fire Act according to the type of building and the material used for the interior.

For example, when installing the sprinkler head on the ceiling, it is generally installed 10 to 20 cm apart from the back of the ceiling, and arranged so that the horizontal distance is 2.1 m or less (2.3 m or less for fire-resistant structures).

As a similar fire extinguishing system, there is a drencher that prevents the combustion of an adjacent fire with a water film during waterproofing because the head is installed outdoors such as on the roof, the edge of the eaves, and the edge of the window.

On the other hand, a dry pendent type sprinkler head is installed in a place where the temperature of the outside air is low and there is a risk of freezing to prevent the sprinkler from freezing.

The dry pendant type sprinkler head as described above is installed on the ceiling to suppress the fire by spraying fire water downward in case of a fire.

1 is a perspective view showing a conventional dry pendant sidewall sprinkler head, FIG. 2 is a perspective view of a state in which the head part is detached due to the occurrence of a fire, and FIGS. 3A and 3B are longitudinal cross-sectional views of FIG. It includes a part 300 , a fixing part 400 , a deflector 500 , a head part 600 , and a pressing part 700 .

The body part 200 has a cylindrical pipe shape having a through hole connected to a drain pipe (not shown) therein, extends from one end connected to the drain pipe to the other end, and is embedded in a side wall of a building interior to face the room. installed very

The guide part 300 is coupled to the other end of the body part 200, an insertion space 10 is formed therein, and a ring-shaped stopper ( 310) is formed.

The pressing part 700 is coupled to the other end of the body part 200 connected to the drain pipe in the insertion space 10 to block the through hole, and a locking protrusion 710 on the outer surface of the position adjacent to the body part 200 . ) is formed.

One end of the pressing part 700 is extended by a predetermined distance so that the outer diameter is extended from one end to the other end to cover the through hole, and then is extended so that the outer diameter is reduced again. formed so as to penetrate the center of

The head part 600 is disposed in front of the pressing part 700 and the guide part 300 , and a circular plate is formed in the form of a wing extending in a direction perpendicular to the extension direction of the body part 200 , and a predetermined temperature It is formed to be decomposed when the internal fuse is melted by the above temperature.

When the structure of the head part 600 is disassembled, the water pressure applied from the through hole by the head part 600 pushes the pressing part 700 toward the front, and the pressing part 700 pushes the head part 600 toward the front. It is separated from the guide part 300 .

The deflector 500 covers the upper portion of the head unit 600 , and one end of the separated part is formed in a ring shape so as to be in close contact with the inner surface of the guide unit 300 , and the other end has a plurality of protrusions and a locking jaw. 710 is formed to surround the pressing part 700 located in the front.

Specifically, the deflector 500 includes an upper deflector 510 , a rear deflector 520 , and a front deflector 530 .

The upper deflector 510 has one end coupled to the fixing unit 400 to be detachably attached to the upper portion of the guide unit 300 so as to be disposed on the front upper portion of the guide unit 300 , and the other end has a plate shape toward the front. is extended to cover the front upper part of the guide part 300 .

One end of the rear deflector 520 is coupled to both sides of the upper deflector 510 except for the portion coupled to the fixed portion 400 of one end, and the other end is inclined downward toward the guide portion 300 to extend the guide portion. It covers between the 300 and the upper deflector 510 .

The front deflector 530 is formed to be inserted into the insertion space 10 of the guide unit 300, and one end is formed to be in close contact with the inner surface of the guide unit 300 in a ring shape, and a part of one end extends forward. and a plurality of protrusions are formed at the other end to surround the outer surface of the pressing part 700 in front of the locking jaw 710 .

Therefore, when the fuse inside the head unit 600 is melted by heat, the structure of the head unit 600 is decomposed and the coupling force supporting the structure is lowered, and the pressure of the press unit 700 that blocks the water pressure moves forward. while departing from the guide unit 300 .

In this case, the pressing unit 700 pushes the front deflector 530 disposed inside the insertion space 10 toward the front, and one end of the front deflector 530 moves forward by a predetermined distance and then the ring One end formed in the shape is stopped by the stopper 310 of the guide part 300 to serve as a deflector for dispersing water.

The front deflector 530 includes an upper protrusion 531 , a side protrusion 532 , a lower protrusion 533 , an upper connecting part 534 , a side connecting part 535 , and a guide ring 536 .

The upper protrusions 531 are formed to extend from the edge of the cylindrical structure disposed in the center of the front deflector 530 in an upper direction perpendicular to the edge, and are disposed at a predetermined distance from each other.

The side projections 532 extend from both sides of the front deflector 530 so as to be spaced apart from each other toward the side, and the lower projections 533 are formed from the edge of the cylindrical structure of the front deflector 530 in a downward direction perpendicular to the edge. formed to extend.

The guide ring 536 is disposed in the rear so as to be spaced apart from the upper, side and lower protrusions 531 , 532 , 533 , and is formed in a ring shape so as to be in close contact with the inner surface of the guide part 300 , the guide part 300 . ) is formed to enable sliding movement along the inner surface.

The upper connecting portion 534 is coupled to the end of the upper protrusion 531, extended rearwardly and coupled to the guide ring 536, and the side connecting portion 535 is spaced apart from each other in the lower portion of the side protrusions 532. It is connected to each of the lower protrusions 533 and extends rearwardly and is coupled to the guide ring 536 .

Accordingly, when the pressing unit 700 moves forward as the head unit 600 is separated from the guide unit 300 due to the occurrence of a fire in the state shown in FIG. 3A , the jamming formed on the outer surface of the pressing unit 700 is The jaw 710 is positioned in front of the front deflector 530 until the guide ring 536 is stopped by the stopper 310, as shown in FIG. 3b. The upper, side and lower protrusions 531, 532, 533 forward Push a certain distance.

In addition, the upper, side and lower protrusions 531, 532, and 533 pushed forward disperse the fire water ejected from the body 200 so that the fire water is uniformly ejected, and the fire water ejected to the upper portion is the upper deflector 510 ) to move forward and extinguish the fire.

As prior art based on the above prior art, there are Republic of Korea Patent Publication No. 10-1743546 and Korean Patent No. 10-1870907, which are presented as Patent Document 1 and Patent Document 2 of the following prior art documents. This is disclosed in detail.

As another prior art, there is a '90 degree dry horizontal sidewall sprinkler' disclosed in US Patent Registration US 7,921,928 B2 of Patent Document 3 below.

In the prior art of Patent Document 3, the vertical link installed inside the vertical segment and the horizontal link installed inside the horizontal segment to interlock with the plug member and the cap are various conversion means inside the elbow that connects the vertical segment and the horizontal segment forming a housing at 90 degrees. It was made to work in conjunction with it.

The Patent Document 3 describes various conversion means provided inside the elbow, which is rotated by a pivot pin and has a oscillating member at both ends of which one end of a horizontal link and one end of a vertical link is coupled, and one end of a horizontal link and a vertical link is coupled with a link. A conversion mechanism, a conversion mechanism that has racks on the horizontal link and the vertical link, respectively, and meshes each rack with the pinion gear to interlock them, and a hydraulic type conversion mechanism that allows the pistons connected to the horizontal link and the vertical link to interlock with hydraulic fluid. Various types of conversion means including

Republic of Korea Patent Publication No. 10-1743546 (registered on May 30, 2017) Republic of Korea Patent Publication No. 10-1870907 (Registered on June 19, 2018) US Patent Registration US 7,921,928 B2 (Registered on Apr. 20, 2011)

However, in the case of the dry pendant type sidewall sprinkler head of Patent Documents 1 and 2, when the wall 94 on which the dry pendant is installed is bent by 90° as shown in FIG. Since it had to be wound, the construction was cumbersome, and power had to be applied to the heating wire in winter, which made it inconvenient to use.

In addition, when power is not applied to the heating wire carelessly in the winter season, not only water leakage due to freezing occurred, but also problems such as the necessity of dismantling the wall during repair work due to the disconnection of the heating wire occurred.

In addition, Patent Document 3 discloses a structure in which one end of a vertical segment and a horizontal segment are simply assembled at both ends of an elbow, or when a dry pendant is assembled and coupled to an elbow using an elbow bushing, when excessive vibration is applied due to clearance for smooth assembly Since the coupling part tends to be easily damaged, there is a problem in that fire water cannot be sprayed to the head when extinguishing a fire.

In particular, Patent Document 3 requires a pivoting member or a conversion mechanism to be installed inside the elbow as a pivot pin or a shaft, and a conversion mechanism using the pivoting member or conversion mechanism, a pinion and a rack, hydraulic pressure and a piston, and a transverse link at both ends. And there is a problem in that productivity is reduced and manufacturing cost is high due to the complexity of the installation structure and the difficulty of assembling that must be connected to the vertical link.

In addition, as in this application, the sprinkler head of the type that holds the plunger with a plurality of balls inside the fitting adapter coupled to the branch pipe is stronger than the water pressure of the branch pipe, even if the force supporting the plunger is released As the plunger does not deviate from the ball pressing force, there is a problem in that it is difficult to quickly spray a firefighter in the event of a fire.

The present invention has been devised to solve such problems in the prior art, and the purpose of the present invention is to improve the structure of the dry pendant so that it is possible to install the dry pendant in the area where the wall is bent at 90° without detecting the hot wire. .

Another object of the present invention is to reduce the flow rate of fire water and prevent the occurrence of turbulence due to the flow of the plunger even if the plunger sealing the inside of the fitting adapter is separated due to the occurrence of a fire.

Another object of the present invention is to realize a desired watering pattern without installing a pressurizing part inside the frame, and at the same time to reduce the working time due to production and assembly due to the simplification of parts.

Another object of the present invention is to provide a means for firmly holding the first and second dry pendants while removing the play when assembling and coupling the first and second dry pendants to the elbow by the first and second bushings. This is to ensure that the bonding portion of the first and second dry pendants has a strength that is not easily damaged.

Another object of the present invention is that even if the pressure force of a plurality of balls holding the plunger inside the fitting adapter coupled to the branch pipe is stronger than the water pressure of the branch pipe, as long as the tube holder of the first support tube is lowered by the withdrawing means due to the occurrence of a fire The plunger is forcibly released from the pressing force of the ball so that it can be moved quickly.

Another object of the present invention is to facilitate power transmission between the first link bushing installed on the side of the first dry pendant and the second link bushing installed on the side of the second dry pendant as a power transmission means.

According to an aspect of the present invention for achieving the above and other objects, the first dry pendant is connected to the branch pipe and provided with a first flow path opening/closing means to close the point connected to the branch pipe to maintain an empty space therein And, a draw-out means installed to be compressed on one side of the first flow path opening/closing means, an elbow coupled to one end of the first dry pendant, and installed inside the elbow to convert and transmit the force of the drawing means by 90° A second dry pendant provided with a power transmitting means, a second flow path opening/closing means coupled to the other end of the elbow and operated by the force transmitted by the power transmitting means, and the first and second dry pendants are airtightly attached to the elbow First and second bushings coupled to be maintained, a frame screwed to the second dry pendant and having an open outlet, and installed so as to be withdrawable inside the frame, having a flange formed at one end and a flat bottom surface at the other end An angle characterized in that it comprises a omnidirectional deflector having a plurality of upwardly bent portions so as to have a radial injection space, and a heat collector that is installed on the exit side of the frame so that the omnidirectional deflector is accommodated in the frame, and is sensitive to fire A type dry pendant sprinkler head is provided.

Another object of the present invention is to be screwed to the first and second bushings in a wedge shape when assembling the first and second dry pendants to the elbow with the first and second bushings by pressing the outer diameters of the first and second dry pendants. can be achieved by further providing a tapered bushing to remove play and increase strength.

Another object of the present invention is to provide a step on the inner surface of the tube holder constituting the first flow path opening/closing means of the first dry pendant, and to the plunger, the plunger has a locking hole in the form of a rod on which the step of the tube holder is caught extends in all directions. It can be achieved by being provided in the first plunger support tube and configured to forcibly separate the plunger when the tube holder is lowered.

Another object of the present invention can be effectively achieved if the contact surfaces of the first link bushing and the second link bushing are formed in an arc-shaped shape capable of point contact.

The present invention installs the empty first and second dry pendants at 90° orthogonal to each other so that when the heat collector is separated due to fire, the force of the withdrawal means is transmitted to the second dry pendant by the power transmission means to open the flow path. It prevents the phenomenon of freezing of the sprinkler head in winter when the outside temperature is cold without using a heating wire.

In addition, an effect of preventing the occurrence of defects such as disconnection in advance is expected by not using a hot wire.

In addition, the tapered bushings are coupled to one side of the first and second bushings in a wedge shape to remove the gap between the first and second outer tube diameters, so that the coupling portion of the first and second dry pendants is not easily damaged by vibration, etc. there is

In addition, when a fire occurs, as long as the tube holder is lowered by the pull-out means, the plunger forcibly escapes the pressing force of the ball and can move quickly, thereby enabling rapid spraying of firefighters.

In addition, when assembling the first link bushing on the side of the first dry pendant and the second link bushing on the side of the second dry pendant are in contact with the inclined surface or the contact surface, the power transmission operation may be performed more smoothly.

In addition, with the first link bushing and the second link bushing assembled at the tip, the first dry pendant and the second dry pendant are quickly and easily assembled by inserting them into the elbow at 90 degrees. , it is effective in reducing production cost and improving quality because the operation is clear.

1 is a perspective view showing a conventional dry pendant side wall sprinkler head
2 is a perspective view of a state in which the head part is detached due to the occurrence of a fire in a conventional dry pendant sidewall sprinkler head;
Figures 3a and 3b are longitudinal cross-sectional views of Figure 1,
Figure 3a is a longitudinal cross-sectional view of a conventional dry pendant side wall sprinkler head installed state
Figure 3b is a state diagram in which the head part is detached due to the occurrence of a fire;
Figure 4 is a state diagram in which the dry pendant is installed in the 90° bent portion of the wall
5 is an exploded perspective view showing the configuration of the present invention;
Figure 6 is a perspective view of the assembled state of Figure 5;
7A and 7B are longitudinal cross-sectional views of FIG. 6 ,
7a is an initial state diagram;
Figure 7b is a state diagram in which the heat collector is detached due to the occurrence of a fire;
8 is a longitudinal cross-sectional view showing another embodiment of the power transmission means in the present invention;
9 is a state diagram of the angle type dry pendant sprinkler head installed in a top-down manner of the present invention;
10 is an exploded perspective view showing the first and second bushings and tapered bushings assembled at both ends of the elbow in the present invention;
11 is a longitudinal cross-sectional view of a state in which the play when assembling the first and second outer tubes to the elbow in the present invention is removed with a tapered bushing;
12a to 12c are views of another embodiment for the plunger movement of the present invention;
12A is a state diagram in a normal state;
Figure 12b is a state diagram in which the step of the tube holder, which is lowered during operation, is caught on the plunger rod;
12c is a state diagram in which the plunger is moved to an operating position by pressurized water;
13a and 13b are views showing the link bushing of the present invention in another embodiment
13A is a longitudinal cross-sectional view of the first and second link bushings before operation;
13B is a longitudinal cross-sectional view of the first and second link bushings after operation;

Hereinafter, with reference to the accompanying drawings, the embodiments of the present invention will be described in detail so that those of ordinary skill in the art to which the present invention pertains can easily implement them. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. It is noted that the drawings are schematic and not drawn to scale. Relative dimensions and proportions of parts in the drawings are shown exaggerated or reduced in size for clarity and convenience in the drawings, and any dimensions are illustrative only and not limiting. In addition, the same reference numerals are used to indicate like features to the same structure, element, or part appearing in two or more drawings.

5 is an exploded perspective view showing the configuration of the present invention, FIG. 6 is an assembled perspective view of FIG. 5, and FIGS. 7A and 7B are longitudinal cross-sectional views of FIG. 93) and the first dry pendant 10 provided with the first flow path opening/closing means 20 to maintain an empty space therein by closing the point connected to the 93), and compressed on one side of the first flow path opening/closing means 20 The withdrawal means 21 installed so as to be installed, the elbow 30 coupled to one end of the first dry pendant 10, and the elbow 30 are installed inside the elbow 30 to convert the force of the withdrawal means 21 by 90° A second dry pendant provided with a power transmission means 40 for transmitting and a second flow path opening/closing means 50 coupled to the other end of the elbow 30 and operated by the force transmitted by the power transmission means 40 . (60), first and second bushings 31 and 32 for coupling the first and second dry pendants 10 and 60 to the elbow 30 so as to be airtightly maintained, and the second dry pendant 60 ) is screwed to a frame 61 with an open outlet, and is installed to be withdrawn inside the frame 61, a flange 71 is formed at one end and radially sprayed from the flat bottom surface 72 at the other end. The forward deflector 70 having a plurality of upwardly bent portions 74 to have a space 73 and the forward deflector 70 installed on the exit side of the frame 61 are accommodated in the frame 61 . It is composed of a heat collector 80 that responds to fire.

In one embodiment of the present invention, the power transmission means 40 is installed on the side of the first dry pendant 10 and includes a first link bushing 41 having an outer surface inclined at 45° and an inclined surface 41a, and the second It is installed on the dry pendant 60 side and consists of a second link bushing 42 having an outer surface 45° inclined surface 42a, so that the force of the withdrawing means 21 is applied to the first and second dry pendants 10 and 60 ) was configured to be transmitted to the second dry pendant 60 side by the inclined surfaces 41a and 42a formed on the outer surface of the side.

However, as shown in FIG. 8 showing the power transmission means 40 in another embodiment, the cam plate 43 is installed on the side of the first dry pendant 10 and has a guide rail 43a at an angle of 45° at one end; It is installed on the side of the second dry pendant 60 and consists of a movable piece 44 having a bearing 44a fitted to the guide rail 43a, so that the force of the withdrawing means 21 is applied by the cam plate 43 It may be configured to be delivered to the second dry pendant 60 side.

In addition, it is understandable that the power transmission means 40 can be applied in various forms by experts in the field.

The first flow path opening/closing means 20 provided in the first dry pendant 10 includes a pipe-shaped first outer tube 11 screwed to the first bushing 31, and the first outer tube ( 11) a first plunger support tube 12 that is movably installed in the interior and one end is supported by the power transmission means 40, and a tube holder 13 coupled to the first plunger support tube 12, and the first 1 A fitting adapter 14 screwed to the outer tube 11 and having a fire water through hole 14a in the center thereof, and a plunger 15 installed in the through hole of the fitting adapter 14 to close the fire water passage, A stop pin 16 fixed to the inside of the first plunger support tube 12 to limit the movement of the plunger 15, and a plurality of stop pins installed on the outer circumferential surface of the plunger 15 and supported by the tube holder 13 Consists of balls (17).

At this time, at one end of the plunger 15, the plunger 15 is separated so that the through hole 14a of the fitting adapter 14 is opened due to the occurrence of a fire and is caught by the stop pin 16, a rotation preventing bar that prevents rotation (15a) is fixed.

First and second bypass holes 12a and 12b are formed on both sides of the first plunger support tube 12 in which the stop pin 16 is installed so that the flow rate of fire water is not reduced by the plunger 15. .

In addition, the second flow path opening/closing means 50 provided in the second dry pendant 60 includes a pipe-shaped second outer tube 51 screwed to the second bushing 32 , and the second outer It is movably installed in the tube 51 and is composed of a second plunger support tube 52 having one end supported by the heat collector 80 .

At this time, the second plunger support tube 52 has a pipe-shaped support bar 53 whose one end is supported by the power transmission means 40 and. The other end of the support rod (53) is provided with a step (54a) and a hook (54b), and is composed of a movable member (54) accommodated in the second outer tube (51).

When the heat collector 80 is installed inside the elbow 30 to be compressed by the power transmission means 40 and the heat collector 80 is separated from the frame 61 due to a fire, the withdrawal means 21 that applies force to the power transmission means 21 In an embodiment of the present invention, a conical coil spring is applied to minimize the volume due to installation, but it is understandable that a leaf spring or the like may be applied.

In one embodiment of the present invention, a lateral deflector 90 is further provided on the upper portion of the frame 61 to suppress the scattering of fire water upward.

A decompression unit 91 surrounding the periphery of the frame 61 is integrated with the lateral deflector 90 located above the outlet to prevent the fire water sprayed through the outlet of the frame 61 from being sprayed upward. is formed to fix the lateral deflector 90 to the frame 61 with a fastening member 92 such as a screw.

In the drawings, reference numeral 62 denotes a frame holder to which the frame 61 is screwed to one end, the second outer tube 51 is screwed to the other end, and a step 62a is formed therein, and 63 is a plunger. It is an O-ring installed on the outer circumferential surface of (15) to maintain airtightness.

It is understandable that the angle type dry pendant sprinkler head of the present invention may be installed in a sidewall type as shown in FIG. 7A, but may also be installed in a top-down manner as shown in FIG.

The operation of the present invention will be described as follows.

First, the second link bushing 41 and the second bushing 32 are sequentially assembled to one end of the elbow 30 , and then the second outer tube 51 is screwed to the second bushing 32 , and then the second After assembling one end of the pipe-shaped support rod 53 constituting the second plunger support tube 52 inside the outer tube 51 in order to be caught on the movable member 54, the other end of the second outer tube 51 In order to prevent the second plunger support tube 52 from being separated, the frame holder 62 is screwed together.

After that, after screwing the frame 61 to the frame holder 62 and accommodating the omni-directional deflector 70 inside the frame 61, assembling the heat collector 80, the movable member 54 As shown in FIG. 7A , the engaging protrusion 54b of the frame holder 62 maintains a predetermined distance s with the step 62a of the frame holder 62 .

In this state, the pressure reducing part 91 of the lateral deflector 90 is wrapped around the outer circumferential surface of the frame 61 and the lateral deflector 90 is fixed with the fastening member 92 .

A second dry pendant 60, a forward deflector 70, a heat collector 80, and a lateral deflector 90 are assembled to one end of the elbow 30, and then a first link bushing is formed at the other end of the elbow 30. (41) and the take-out means 21 are accommodated and the first bushing 31 is assembled, the drawing means is maintained in a compressed state by the first bushing 31.

In this state, when the first outer tube 11 is screwed into the first bushing 31 and then the first plunger support tube 12 is inserted into the first outer tube 11, the first plunger support Since the front end of the tube 12 is connected to the first link bushing 41, the insertion of the first plunger support tube 12 is limited. At this time, the first and second bypass holes formed in the first plunger support tube 12 A stop pin 16 for limiting the movement of the plunger 15 is fixed to pass between the 12a and 12b.

After assembling the first plunger support tube 12 to the first outer tube 11 as described above, the plunger 15 is inserted into the through hole 14a of the fitting adapter 14 and then located on the outer peripheral surface of the plunger 15 7A by placing a plurality of balls 17 as possible as possible, locating the tube holder 13 on the first plunger support tube 12, and screwing the fitting adapter 14 to the first outer tube 11, FIG. The side wall type angle type dry pendant sprinkler head is completed.

In one embodiment of the present invention, it is described as assembling the second outer tube 51 to one end of the elbow 30 and then assembling the first outer tube 11 to the other end, but the order may be reversed. is understandable.

As described above, after the assembly of the side wall type angle type dry pendant sprinkler head is completed, it is embedded in the wall 94 in the form shown in FIG. 4, and then the fitting adapter 14 is placed inside the side wall of the building. (93) is screwed to install.

In this way, in the state in which the angle-type dry pendant sprinkler head is connected to the branch pipe 93, the tube holder 13 assembled to the first plunger support tube 12 presses the plurality of balls 17, so the fitting adapter 14 The plunger 15, which has closed the through hole 14a of the , does not disengage from the fitting adapter 14.

Accordingly, since the first and second plunger support tubes 12 and 52 and the first and second outer tubes 11 and 51 are empty spaces not filled with fire water, the sprinkler head is frozen even if the temperature of the outside air falls. This will prevent the phenomenon in advance.

When a fire occurs in this state, as shown in FIG. 7B due to high heat, the fuse (not shown) of the heat collector 80 is melted and separated from the frame 61, pushing the first link bushing 41. Since the force of the second link bushing 42 is lost and the first link bushing 41 is moved by the restoring force of the withdrawal means 21, the second link bushing 42 is moved to the left in the drawing, so the power transmission means ( 40), the support rod 53 and the movable member 54 constituting the second plunger support tube 52 by the movement of the positions of the first and second link bushings 41 and 42 together to the exit side of the frame 61 Moving, the movable member 54 is limited in movement by the locking jaw 54b caught on the step 62a of the frame holder 62 .

At the same time, since the support state of the first plunger support tube 12 is released and the support force of the plurality of balls 17 by the tube holder 13 is lost, the plunger that closed the through hole 14a of the fitting adapter 14 ( 15) comes out from the through hole 14a by the pressure of the fire water, so it moves along the inside of the first plunger support tube 12 by the water pressure of the fire water and is caught by the stop pin 16 .

In this way, the plunger 15 caught on the stop pin 16 is not rotated inside the first plunger support tube 12 because the anti-rotation bar 15a is fixed to the stop pin 15. There is no turbulence caused by the plunger (15).

Therefore, when the fire water exits through the through hole 14a formed in the fitting adapter 14, the stop pin 16 is located in the first plunger support tube 12, so that the flow rate is reduced, but in the present invention, a part of the fire water is provided by the plunger. (15) flows into the second bypass hole 12b through the space of the first outer tube 11 through the first bypass hole 12a in the front, and is discharged together with the fire water that has passed through the plunger 15. 2 The frame 61 is sprayed to the outlet through the plunger support tube 52, collides with the bottom surface 72 of the forward deflector 70, and then scatters into the injection space 73, and some of the lateral deflector 90 It is possible to quickly extinguish the fire by preventing it from scattering in the upward direction.

The present invention uses the first and second bushings 31 and 32 to remove the play when assembling the first and second dry pendants 10 and 60 to the elbow 30, tapered bushings 33 and 34. ) of the first and second bushings 31 and 32 may be further provided in the form of a screw-coupled wedge on one side.

The tapered bushings 33 and 34 include the first and second flow path opening and closing means 20 and 50 and the first and second bushings 31 and 32 of the first and second dry pendants 10 and 60 . ) and the first and second dry pendants (10) (60) because they are coupled in a wedge shape to the gap portion provided for smooth assembly and press and hold the outer diameters of the first and second flow path opening/closing means (20, 50). It has a strength that is not easily broken at the bonding site of the

Therefore, even when vibration is applied to the coupling portion of the first and second dry pendants 10 and 60, the first and second dry pendants 10 and 60 are reinforced with strength by the tapered bushings 33 and 34. It has the effect of improving the durability that the bonding part of the product is not easily damaged.

In addition, the first flow path opening/closing means 20 of the first dry pendant 10 may be configured in another embodiment below.

That is, the first outer tube 11 in the shape of a pipe screwed to the first bushing 31 and the first outer tube 11 movably installed in the first outer tube 11 and one end supported by the power transmission means 40 . 1 A plunger support tube 12, a fitting adapter 14 screwed to the first outer tube 11 and having a fire water through hole in the center, and the first plunger support tube 12 coupled to a stepped inner surface A tube holder 13 provided with (13a), a plunger 15 installed in the through hole 14a of the fitting adapter 14 to close the flow path of the firefighting water;

A rod 18a on which the step 13a of the tube holder 13 is caught is provided on the plunger 15 in a form extending in all directions, and a locking hole 18 for forcibly disengaging the plunger 15 when the tube holder 13 is lowered. ), a stop pin 16 fixed to the inside of the first plunger support tube 12 to limit the movement of the plunger 15, and a tube holder 13 installed on the outer peripheral surface of the plunger 15 It is characterized in that it consists of a plurality of balls (17) supported.

Here, the stepped 13a of the tube holder 13 may be integrally formed when the tube holder 13 is formed, or the stepped 13a may be formed as a separate part and installed so as to be provided on the inner peripheral surface of the tube holder 13. .

In addition, the rod 18a may be formed of a material such as stainless steel having elasticity and rigidity and provided on all sides of the locking hole 18, or the locking hole 18 and the rod 18a as a whole are made of a material such as elastic and rigid. It is safe even if it is formed of a rigid material.

And the first flow path opening/closing means 20 configured in the above other embodiment can solve the following problems.

That is, when the tube holder 13 presses the ball 17 to maintain the sealing force of the plunger 15, when the support force that presses the ball 17 is lost due to the movement of the tube holder 13 due to fire, the plunger ( If the pressing force of the plurality of balls 17 holding the 15) is stronger than the hydraulic pressure of the branch pipe 93, the plunger 15 does not release the closing of the through hole 14a of the fitting adapter 14 due to the pressing force of the balls 17. Therefore, it is difficult to quickly spray the firefighters.

However, the first flow path opening/closing means 20 of the other embodiment is the tube holder 13 when the tube holder 13 is moved along with the movement of the first plunger support tube 12 by the withdrawal means 21 due to fire. Since the step 13a of the pulley pulls the rod 18a of the hook 18, the plunger 15 forcibly escapes the pressure force of the ball 17, and it is possible to move quickly, which makes it possible to quickly spray the firefighters. .

And, the power transmission means 40 may be configured in another embodiment below.

That is, the first link bushing 41 is installed on the side of the first dry pendant 10 and has an arc-shaped contact surface 41b at one end;

It is installed on the side of the second dry pendant 60 and consists of a second link bushing 42 having an arc-shaped contact surface 42b at one end so as to be in contact with the contact surface of the first link bushing 41,

The force of the withdrawing means 21 may be smoothly transmitted to the second dry pendant 60 side by a point contact method having a low coefficient of friction.

Here, the first bushing and the second bushing provided as the power transmission means 40 have the same size as each other's inclined surfaces 41a, 42a, or contact surfaces 41b and 42b, as shown in FIGS. 7a and 7b. The size of the inclined surface 41a or the contact surface 41b on one side can be formed smaller than the inclined surface 42a or the contact surface 42b on the other side as shown in FIGS. 13a and 13b, and the first flow path opening and closing means ( 20) and the second flow path opening/closing means 50 may be variably configured to adjust the movement distance.

Although embodiments of the present invention have been described with reference to the accompanying drawings, those of ordinary skill in the art to which the present invention pertains can understand that the present invention may be implemented in other specific forms without changing the technical spirit or essential features. will be.

Therefore, the embodiments described above are to be understood as illustrative and not restrictive in all respects, and the scope of the present invention described in the above detailed description is indicated by the following claims, meaning and All changes or modifications derived from the scope and its equivalents should be construed as being included in the scope of the present invention.

10: first dry pendant 11: first outer tube
12: first plunger support tube 12a, 12b: bypass hole
13: tube holder 13a: stepped
14: fitting adapter 14a: through hole
15: plunger 15a: anti-rotation bar
16: stop pin 17: ball
18: catch 18a: rod
20: first euro opening and closing means 21: withdrawal means
30: elbow 31: first bushing
32: second bushing 33, 34: tapered bushing
40: power transmission means 41: first link bushing
41a, 42a: inclined surface 41b, 42b: contact surface
42: second link bushing 50: second flow path opening and closing means
51: second outer tube 52: second plunger support tube
53: support rod 54: movable member
54b: hooking jaw 60: second dry pendant
61: frame 70: omnidirectional deflector
72: bottom 73: spray space
80: heat collector 90: lateral deflector
91: decompression unit 93: branch pipe

Claims (11)

A first dry pendant connected to the branch pipe and provided with a first flow path opening/closing means to close a point connected to the branch pipe to maintain an empty space therein;
a withdrawal means installed to be compressed on one side of the first flow passage opening and closing means;
an elbow coupled to one end of the first dry pendant;
a power transmission means installed inside the elbow to convert and transmit the force of the withdrawal means by 90°;
a second dry pendant coupled to the other end of the elbow and provided with a second flow path opening/closing means operated by the force transmitted by the power transmission means;
first and second bushings coupling the first and second dry pendants to an elbow so as to be airtight;
a frame 61 screwed to the second dry pendant and having an open outlet;
an omnidirectional deflector installed so as to be withdrawably installed inside the frame, having a flange formed at one end and a spray space radially from a flat bottom surface at the other end;
In the angle-type dry pendant sprinkler installed on the exit side of the frame so that the omnidirectional deflector is accommodated in the frame, and the heat collector is sensitive to fire.
The power transmission means,
A cam plate installed on the side of the first dry pendant and having a guide rail at an angle of 45° at one end, and a movable piece installed on the side of the second dry pendant and having a bearing fitted into the guide rail, so that the force is transmitted to the second dry pendant side by the cam plate,
The first flow path opening and closing means of the first dry pendant,
a first outer tube having a pipe shape that is screwed to the first bushing;
a first plunger support tube movably installed in the first outer tube and one end supported by the power transmission means;
a fitting adapter screwed to the first outer tube and having a fire water through hole in the center;
a tube holder coupled to the first plunger support tube and provided with a stepped inner surface;
a plunger installed in the through hole of the fitting adapter to close the flow path of the fire water;
A locking hole for forcibly disengaging the plunger when the tube holder is lowered by being provided on the plunger in a form in which the rod on which the step of the tube holder is caught is extended in all directions;
a stop pin fixed to the inside of the first plunger support tube to limit the movement of the plunger;
An angle-type dry pendant sprinkler head comprising a plurality of balls installed on the outer circumferential surface of the plunger and supported by a tube holder.
delete The method according to claim 1,
The first flow path opening and closing means of the first dry pendant,
a first outer tube having a pipe shape that is screwed to the first bushing;
a first plunger support tube which is movably installed in the first outer tube and has one end supported by the power transmission means;
a tube holder coupled to the first plunger support tube;
a fitting adapter screwed to the first outer tube and having a fire water through hole in the center;
a plunger installed in the through hole of the fitting adapter to close the flow path of the fire water;
a stop pin fixed to the inside of the first plunger support tube to limit the movement of the plunger;
An angle-type dry pendant sprinkler head comprising a plurality of balls installed on the outer circumferential surface of the plunger and supported by a tube holder.
The method according to claim 1,
The second flow path opening/closing means of the second dry pendant comprises:
a second outer tube having a pipe shape that is screwed to the second bushing;
An angle-type dry pendant sprinkler head, characterized in that it is movably installed in the second outer tube and consists of a second plunger support tube having one end supported by a heat collector.
delete 4. The method according to claim 3,
An angle-type dry pendant sprinkler head, characterized in that the anti-rotation bar is fixed to the plunger.
delete delete delete delete The method according to claim 1,
The step of the tube holder is provided integrally with the tube holder or made as a separate part,
Angle-type dry pendant sprinkler head, characterized in that the rod extending in all directions of the locking hole assembled on the plunger is formed of a material with elasticity and rigidity.

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