KR20160009199A - Sprinkler head - Google Patents

Abstract

The present invention provides a structure of a sprinkler head (100) which can improve operation characteristics of a deflector and a holder and can facilitate assembling of a holder component easily. The sprinkler head (100) comprises: a body (110) comprising a first inner path (112) where a fire extinguishment liquid is moved, and a second inner path (113) which extends along a center axis direction of the first inner path and has a wider diameter than the first inner path; the holder (140) which is installed to block the first inner path (112) of the body in order for the fire extinguishment liquid not to be sprayed; the deflector (130) comprising a lower plate (130a) which has a hole at a center for the holder to be hooked as descending in a fixed height and is configured for the fire extinguishment liquid to be spread to an outer diameter, and a support ring (131) which extends toward an upper side from the lower plate to be hooked to an inner protrusion (113b) formed at an end of a second inner path (113) when descending together with the holder, and has an outer diameter contracted flexibly during assembly; and a fire extinguishment operation part (190) which is fixed to the end of the second inner path (113) of the body in order to border a bottom of the holder (140) by intervening a clamp ring (152) between an upper coupling (151) and a lower coupling (153). Especially, the holder (140) comprises a first bundle (240) blocking the first inner path of the body, and a second bundle (340) located at the second inner path of the body, and the first bundle is combined to an upper part of the second bundle as being flexible up, down, left and right, and the bottom of the second bundle (340) of the holder borders the fire extinguishment operation part (190).

Description

Sprinkler head {Sprinkler head}

The present invention relates to a sprinkler head, and more particularly to a sprinkler head capable of improving operational reliability of a deflector and holder and facilitating assembly of the holder.

Generally, sprinkler is a type of sprinkler that is attached to a ceiling or a wall in a building. When a thermal plate of a sprinkler is heated in a fire, the fuse dissolves according to the heat conduction of the hot plate and some supporting components are separated. Is formed so as to be radiated by the deflector to suppress the fire.

The fire extinguishing liquid is sprayed in a spray form, so it is effective as a fire extinguishing system for a building which has a large effect on liquid fire and has a lot of underground spaces or underground structures or combustible materials (combustible materials) And its application range is very wide. It usually operates at 67 ~ 180 ℃, but it depends on the type, and the installation position, placement and discharge are regulated by the Fire Service Act according to the type of building and the degree of interior decoration. The sprinkler head should be installed 10 ~ 20cm away from the back of the ceiling and shall be placed so that the horizontal distance is less than 2.1m (2.3m for refractory structure). A similar fire extinguishing system is equipped with a sprinkler head on the roof, on the edge of the eaves, on the edge of the window, etc., and there is a drencher which prevents the combustion of adjacent fire by water film in waterproofing.

As an example of a general sprinkler head, Patent Registration No. 10-1040075 (hereinafter referred to as "prior art") developed by the applicant of the present invention is known.

The sprinkler head of the related art is composed of a body 10 to which a pipe (not shown) through which a digestive liquid passes, components inside the body 10, and collectors at the bottom as shown in FIG. The body 10 has a structure in which an inner passage 11 through which the digestive fluid is moved is formed and the inner wall 12 and the outer wall 13 are formed so that the passage 11 extends to form a double pipe.

A holder (40) for closing the inner wall of the body (10) is installed inside the body (10) so that the extinguishing liquid is not sprayed. A seat 21 for airtight sealing of the digestive liquid is provided at a contact portion between the holder 40 and the end of the inner wall 12 of the body 10. A deflector 30 is provided around the holder 40. The deflector 30 includes a lower plate 30a having a ring shape formed with a hole for fitting the holder 40 in the center and a support ring 31 at the upper end that is caught by the inner jaw 13b at the lower end of the body 10 And a plurality of connecting rods 30b for connecting the lower plate 30a and the support ring 31 to each other. The support ring 31 constitutes a part of a cut-out portion, and when the cut-out portion is pulled, its diameter is reduced, and when it is released, the support ring 31 is restored to its original position by elastic force.

The elastic clamp ring 52, the rod screw 50, the locking screw 60 and the heat-insulating plate 70 are integrally formed on the lower portion of the deflector 30 and the holder 40. The upper and lower couplings 51, A heat insulating material 62, and a fuse 61 are provided. The upper coupling 51 and the clamp ring 52 have an outer diameter enough to pass through the outer wall 13 of the body 10 and the lower coupling 53 is formed on the end face of the body 10 And is formed so as to be caught by the outer jaw 13a.

The clamp ring 52 is positioned between the upper and lower couplings 51 and 53 while the lower coupling 53 is engaged with the outer jaw 13a formed on the end surface of the body 10, The clamp ring 52 located between the upper and lower couplings 51 and 53 is caught by the inner jaw 13b when the upper coupling 51 is brought into contact with the lower surface of the lower coupling 51 and the locking screw 60 is tightened. The upper coupling 51 can not escape from the end of the outer wall 13 of the body 10 and remains supported by the clamp ring 61.

10, the holder 40 blocks the digestive liquid passage 11, and when the fuse 61 is melted at the time of the fire, the sprinkler head passes through the clamp ring 52, The upper coupling 51 and the lower coupling 53 supported by the outer jaws 13b and 13a are loosened so that the tightening balance is broken and the clamp ring 52 is restored to its original position, The deflector 30 is lowered to the position where the support ring 31 of the deflector 30 is caught by the inner jaw 13b of the body 10 and the holder 40 is detached from the deflector 30 ) Of the lower plate 30a. That is, the parts other than the deflector and the holder are separated from the body 10 and fall off. When the support ring 31 of the deflector 30 is hooked on the inner jaw 13b of the body 10, 11 by a deflector 30 as shown in Fig.

In the conventional sprinkler head having the above structure, when the clamp ring 52 is restored to its original position when the fire is generated, when the upper coupling 52 is detached from the body 10 and is caught in the inner jaw, A problem that can not be achieved can be caused.

In addition, there is a structural problem in that the holder 40 for shielding the internal passage 11 can not easily cope with minute deviations during the assembling process, and the assembled parts are damaged due to excessive force applied during assembly of the parts.

Registration No. 10-1040075 (Notice of June 10, 2011)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a sprinkler head capable of assuring the reliability of opening operation of a deflector and a holder by simple structural modification and facilitating component assembly .

Another object of the present invention is to provide a sprinkler head which facilitates assembly of a deflector and a holder, and which can stably support a component mounted inside the body.

In order to attain the above object, the present invention is characterized in that a body including a first internal passage through which a digestive fluid is moved, and a second internal passage extending along a central axis direction of the first internal passage and configured to be larger in diameter than the first internal passage, ;

A holder installed to close the first internal passage of the body so that the extinguishing liquid is not sprayed;

A lower plate having a hole formed therein at a center thereof so that the holder can be lowered at a predetermined height and having an outer diameter to allow the digestive liquid to spread, and a lower plate coupled to the lower plate to catch the inner jaw formed at the end of the second inner passage of the body when the holder is lowered together with the holder. A deflector extending in an upward direction and having a support ring whose outer diameter is reduced elastically when assembled;

And a fire extinguishing part which is fixed to an end of a second internal passage of the body so as to contact the bottom surface of the holder with a clamp ring interposed between the upper and lower couplings,

Wherein the holder comprises a first bundle for blocking a first internal passage of the body and a second bundle located in a second internal passage of the body so that the first bundle can be vertically, And the second bundle bottom surface of the holder is in contact with the fire extinguishing part.

The spring is resiliently mounted between the lower plate portion of the deflector and the lower end of the second bundle of the holder.

In addition, a snap ring for resiliently urging the spring is formed on the outer circumferential surface of the lower end of the second bundle of the holder.

Further, the fire extinguishing part includes a heat-insulating plate formed below the lower coupling; A fuse configured between the heat-sensing plate and the lower coupling; And a rod screw passing through the heat-insulating plate, the fuse, the upper coupling and the lower coupling to closely contact the upper coupling and the lower coupling to open the clamp ring.

An O-ring for sealing the first internal passage is fitted to the outer periphery of the first bundle of the holder, and a boundary portion between the first inner passage and the second inner passage is formed between the first bundle and the second bundle of the holder And the airtight sheet is fitted.

The first bundle is in contact with the step formed in the first inner passage via the seat 121, so that the first bundle is in contact with the first inner passage, And the movement of the inner passage to the upper side is restricted.

The sprinkler head according to the present invention has a spring that pushes the fire extinguishing part in the holder, so that it is easy to release the fire extinguishing part after the fire is sensed, thereby reliably inducing the descent of the holder and the deflector.

Further, the holder is constituted by a first bundle and a second bundle. By combining the second bundle and the first bundle so as to be vertically and horizontally movable, it is possible to easily assemble the deflector and the holder to the body, and to stably support the parts mounted inside the body.

1 is a three-dimensional view of the sprinkler head of the present invention,
2 is an exploded perspective view showing an example of a sprinkler head of the present invention,
3 is a partial cutaway view showing an example of the sprinkler head of the present invention,
4 is a sectional view showing an example of a sprinkler head of the present invention,
5 is a partial cutaway view showing an example of a holder for a sprinkler head of the present invention,
6 is an exploded perspective view showing an example of a holder for a sprinkler head of the present invention,
7 is a sectional view of an example showing the state after the sprinkler head of the present invention is operated,
8 is a partial cutaway view showing another example of the holder for a sprinkler head of the present invention,
9 is a sectional view showing a sprinkler head to which a holder for a sprinkler head of Fig. 8 is coupled,
10 is a sectional view of a conventional sprinkler head.

Hereinafter, the technical construction and operation of the sprinkler head 100 of the present invention will be described in detail with reference to Figs. 1 to 9. Fig.

1, the sprinkler head 100 includes a body 110 to which a pipe through which a digestive juice of a fire extinguishing unit is connected, components inside the body 110, a fire extinguishing unit 190, .

2 to 4, the internal passage 111 of the body 110 includes a first internal passage 112 and a second internal passage 113 through which the extinguishing liquid is moved.

The second internal passage 113 is configured to extend along the center axis direction of the first internal passage 112 and to be larger in diameter than the first internal passage.

Meanwhile, a holder 140, which blocks the first internal passage 112 of the body 110, is installed inside the body 110 so that the extinguishing liquid does not leak. The holder 140 is provided with a seat 121 and an O-ring 122 for hermetically sealing the first internal passage 112.

The seat 121 and the O-ring 122 are moved from the first internal passage 112 to the second internal passage 113 at a position where the step 140a of the holder contacts the end step 112a of the first internal passage 112 ) To prevent leakage of digestive juice. A retaining ring 81 for supporting the spring 80 is formed on the outer circumferential surface of the lower portion of the holder 140 and a step 140a is formed on the upper side of the retaining ring 140 around the body of the holder.

A deflector 130 is installed in the space of the second internal passage 113.

The deflector 130 includes a lower plate 130a having a ring 130c formed at the center thereof so that the body of the holder 140 may pass through and the holder 140 may not pass through the holder 140a, And a support ring 131 which is fixed to an end of the link 130b. The link 130b includes a plurality of links 130a and 130b.

Three linkages 130b are suitable. The support ring 131 is formed in a ring-shape cut at one side and is made of a metal plate having elasticity, and is fixed to the end of the linkage 130b as shown in Fig. The end of the link 130b and the support ring 131 can be fixed by fixing or fixing the end of the link in correspondence with the groove formed in the support ring or by using welding or the like.

The supporting ring 131 fixed to the end of the connecting rod 130b can be assembled by fitting the space of the second internal passage 113 after the outer diameter of the supporting ring 131 is reduced so that both sides of the broken portion of the ring are closer to each other. The support ring 131 of the deflector 130 inserted in the space of the second internal passage 113 is positioned at the lower inner side jaw of the second inner passage 113 of the body 110 when the support ring 131 of the deflector 130, And has an inner diameter that allows the lower portion of the holder 140 to pass unimpededly.

When separating the deflector 130 for repair or the like from the body 110, as in the case of assembling, both sides of the broken portion of the support ring 131 may be pushed down to separate the outer diameter.

One end of a spring 80 is supported on a snap ring 81 that is swingable on a lower outer circumferential surface of the holder and the other end of the spring 80 is supported on a lower plate 130a of the deflector to support a deflector 130 and a holder 140 to act against each other.

The fire extinguishing unit 190 includes upper and lower couplings 151 and 153 and a clamp ring 152, a rod screw 150, a locking screw 160, a heat shield plate 170, a heat insulator 162, And a fuse 161 connected thereto.

The clamp ring 152 has an annular shape in which one side is cut and partially broken, and is made of an elastic body. The clamp ring 152 is configured to have an outer diameter enough to pass through the end of the second inner passage 113 in the state where no external force is applied.

The upper coupling 151 is also configured to have an outer diameter enough to pass through the end of the second inner passage 113. The clamp ring 152 is opened by the external force, The outer diameter is set such that it can not come out of the second inner passage 113 when caught by the clamp ring 152 when the clamp ring 152 is hooked on the inner jaw 113b. The upper coupling 151 is formed at the center thereof with a female screw 151a to which the rod screw 150 and the locking screw 160 are fastened in opposite directions.

The lower coupling 153 is formed in a structure in which it is caught by an outer step 113a formed on the end surface of the second inner passage 113 of the body 110. [

A heat-insulating plate 170 and a fuse 161 fitted in the middle of the heat-insulating plate are provided under the lower coupling 153.

The clamp ring 152 is positioned between the upper and lower couplings 151 and 153 in a state where the lower coupling 153 is engaged with the outer flange 113a formed on the end surface of the second internal passage 113 of the body 110 And the lower surface of the holder 140 and the upper coupling 151 come into contact with or face each other and the locking screw 160 is tightened toward the rod screw 150. When the clamp ring 152 The fire extinguishing portion 190 is held at the end of the second internal passage 113 of the body 110. As a result, The lower end of the heat sink 170 is connected to the lower coupling 153 through the heat sink 170. The lower end of the heat sink 170 is connected to the lower coupling 153 through the heat sink 170,

5 and 6, the holder 140 of the present invention will be described in detail.

The holder 140 of the present invention is constituted by a first bundle 240 for blocking the first internal passage 112 of the body and a second bundle 340 located in the second internal passage 113.

The first bundle 240 includes a disc portion 241, a groove 242 that is opened on the outer peripheral surface of the disc portion and into which the O-ring 122 is inserted, a fastening rod 243 that protrudes from the center of the lower surface of the disc portion, And a male screw portion 244 formed at the end of the rod.

The second bundle 340 of the holder has a step 140a which is protruded and protruded around the body 341 and a fastening rod receiving part 342 on the upper side with respect to the step 140a, And a snap ring engagement groove 343 in which the snap ring 81 is fitted is formed on the outer peripheral surface of the body 341. The fastener receiving portion 342 includes a female thread portion 344 to which the male thread portion 244 of the first bundle 240 is fastened and a space portion 345 that is larger in inner diameter than the female thread portion and extends to the lower end of the female thread portion do.

A groove 355 is formed in the center of the lower end of the body 341 of the second bundle 340 in which a portion of the rod screw 150 coupled to the center of the upper coupling 151 is inserted.

When the first bundle 240 of the holder 140 and the second bundle 340 are coupled to each other, the airtight sealing sheet 121 is inserted into the outer peripheral surface of the fastening rod receiving portion 342 of the second bundle 340, The male thread portion 244 of the first bundle 240 passes through the female thread portion 344 of the second bundle 340 and is screwed so as to be positioned on the space portion 345 side. When the first bundle 240 and the second bundle 340 are screwed together as described above, the first bundle 240 and the second bundle 340 are not separated from each other, 340 so as to be slightly flowable up and down and right and left.

The reason why the first bundle 240 and the second bundle 340 of the holder 140 are movably coupled to each other is that the holder 140 can be easily positioned even if there is a slight deviation between the components when assembling the holder 140 into the inner passage Or fine adjustment so as to improve the number of assembling operations and to minimize damage to the parts.

Next, the operation of the sprinkler head 110 of the present invention will be described with reference to FIG.

The sprinkler head is normally supported by the fire extinguishing part 190 at the end of the second internal passage 113 of the body 110 to keep the holder 140 blocking the fire extinguishing liquid passageway 111, When the fuse 161 melts due to the heat transmitted to the heat-insulating plate 170, the upper coupling 151 and the lower coupling 153 supported by the inner and outer jaws are loosened via the clamp ring 152, The clamp ring 152 is restored to its original position and the fire extinguishing portion 190 and the spring 80 are first detached from the body 110 and separated from the body 110. When the support ring 131 of the deflector 130 is detached from the body 110, The deflector 130 is lowered to a position where it is caught by the second inner path inner jaw 113b and the holder 140 is lowered to a position where the step 140a is separated from the lower plate 130a of the deflector 130, Is opened.

 Since the spring 80 pushes the upper coupling 151 downward in the process of releasing the fire extinguishing part 190, the reliability of the extinguishing part 190 can be improved.

When the step 140a of the holder 140 is lowered to a position where the lower plate 130a of the deflector 130 is deflected and the inner passage 111 is opened, the fire extinguishing liquid is spread widely by the deflector 30 to the fire occurrence position.

The holder 140 of the present invention is not limited to the structure of FIG. 5, and may have a structure in which the sheet 121 is fitted to the upper end of the first bundle 240 as shown in FIG. 5 and FIG. 8 differ only in the joining position of the sheet 121, and the remaining description and operation are the same.

The holder 140 of FIG. 8 can be coupled as shown in FIG.

The sprinkler head of the present invention is not limited to the above-described or illustrated embodiments, and various modifications can be made without departing from the scope of the claims and the purpose of the invention.

10, 110 - body
11,111-internal passage
21,121 - Sheet
30, 130 - Deflector
31,131 - Support ring
40,140 - Holder
50,150 - Rod Screw
51,151 - upper coupling
52,152 - Clamp ring
53,153 - Lower coupling
60,160 - Locking screw
61,161 - Fuse
62,162 - Insulation
70,170 - The hot plate
80 - spring
81 - Snap ring
100 - sprinkler head
112 - a first internal passage
113 - a second internal passage
122 - O ring
190 - fire extinguishing part
240-first bundle
241 - Disc portion
242,355 - Home
243 - Connecting rod
244 - Male thread part
340 - second bundle
342 - fastener receiving portion
343 - Snap ring coupling groove
344 - Female threads
345 - Space section

Claims (5)

A body having a first inner passage through which the digestive juice is moved and a second inner passage extending along the central axis direction of the first inner passage and configured to be larger in diameter than the first inner passage;
A holder installed to close the first internal passage of the body so that the extinguishing liquid is not sprayed; A lower plate having a hole formed therein at a center thereof so that the holder can be lowered at a predetermined height and having an outer diameter to allow the digestive liquid to spread, and a lower plate coupled to the lower plate to catch the inner jaw formed at the end of the second inner passage of the body when the holder is lowered together with the holder. A deflector extending in an upward direction and having a support ring whose outer diameter is reduced elastically when assembled;
And a fire extinguishing part which is fixed to an end of a second internal passage of the body so as to contact the bottom surface of the holder with a clamp ring interposed between the upper and lower couplings,
Wherein the holder comprises a first bundle for blocking a first internal passage of the body and a second bundle located in a second internal passage of the body so that the first bundle can be vertically, And the second bundle bottom surface of the holder is configured to be in contact with the fire extinguishing portion. The method according to claim 1,
And a spring is mounted between the lower plate portion of the deflector and the lower end of the second bundle of the holder. The method according to claim 1,
And a snap ring for resiliently urging the spring is formed on an outer circumferential surface of a lower end of the second bundle of the holder. The method according to claim 1,
The fire extinguishing unit includes a heat-insulating plate formed on a lower side of the lower coupling; A fuse configured between the heat-sensing plate and the lower coupling; And a rod screw passing through the heat-insulating plate, the fuse, the upper coupling, and the lower coupling to closely contact the upper and lower couplings so that the clamp ring is opened. The method according to claim 1,
An O-ring hermetically sealing the first inner passage is fitted to the outer periphery of the first bundle of the holder, and a boundary between the first inner passage and the second inner passage is sealed between the first bundle and the second bundle of the holder Wherein a sheet is fitted in the sprinkler head.

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