Sprinkler head of dry type

Abstract

The posted content relates to a dry sprinkler head installed on the ceiling or side wall, etc., inside a building to spray extinguishing water in all directions in the event of a fire, and A dry downward-type sprinkler head according to one embodiment of the present specification is Applied to dry downward-type sprinkler heads, A fitting holder connected to a drain pipe filled with fire extinguishing water, formed with both ends open, and hollow inside to allow fire extinguishing water to move; An outer tube connected so that one end is connected to the above-mentioned fitting holder; A tube cap plunger having a tube cap formed at one end for opening and closing the inlet of the fitting holder, and a through hole formed in a body extending from the tube cap through an extension piece for moving fire extinguishing water; A flow tube having one end connected to the above-mentioned tube cap plunger and formed to be spaced apart from the above-mentioned outer tube, with a water passage formed inside through which fire extinguishing water introduced into the above-mentioned fitting holder moves; A lower body connected to the other end of the outer tube and coupled to the flow tube so as to be movable in the longitudinal direction; An elastic member installed between the fitting holder and the body of the tube cap plunger, elastically biasing the inlet closed by the tube cap back to its initial state; A seat holder for sealing that is closely supported and openable at the outlet side of the above flow tube; A deflector movably coupled to the lower body and restricting the direction of fire extinguishing water discharge moving along the waterway in the event of a fire; A dry sprinkler head is provided, characterized by comprising: a heat-sensitive element that is detachably supported on the inner surface of the discharge port of the lower body, pressurizes the seat holder to prevent extinguishing water from leaking from the flow tube, is fixed to a rod screw supporting the seat holder, and is removed from the lower body when heat exceeding a predetermined temperature caused by a fire is detected by a heat collector plate and an internal fuse melts.

Description

Technology Field

[0001] This specification relates to a sprinkler head, and more specifically, to a dry sprinkler head installed on a ceiling or side wall, etc., within a building to spray extinguishing water in all directions to extinguish a fire at an early stage when a fire occurs. Background Technology

[0002] Unless otherwise indicated in this specification, the contents described in this section are not prior art for the claims of this application, and are not to be recognized as prior art simply because they are included in this section.

[0004] Generally, a sprinkler is configured such that when a fire occurs, the heat-sensitive plate attached to the ceiling or wall of a building causes the fuse to melt, the supporting component to detach, and the fire extinguishing fluid pipe installed above it opens, allowing the extinguishing fluid to be discharged by a deflector, and the discharged fluid is directed from the deflector to the entire ignition point.

[0005] Since the aforementioned extinguishing liquid is discharged in a mist form, it is highly effective against liquid fires. It is suitable as a fire extinguishing system for underground utility tunnels or underground buildings where fire detection or extinguishing activities are difficult, or for areas with a large amount of combustible materials and high foot traffic, and its scope of application is very wide.

[0006] Sidewall-type dry pendant sprinklers installed inside buildings are widely used with spray nozzles, and are typically divided into dry type (also called open type) and wet type (also called closed type) in terms of the method of spraying fire extinguishing water or extinguishing agent.

[0007] Wet sidewall dry pendant sprinklers are mainly used in general households, apartments, and commercial buildings to prevent fires, and they are filled with firefighting water. However, a problem has arisen where firefighting water leaks out due to the retainer ring shrinking from partial melting of the fuse metal in the early stages of a fire, causing a phenomenon known as 'cold soldering' that hinders the initial suppression of the fire.

[0008] Dry sidewall dry pendant sprinklers (so-called dry pendant types) are configured to discharge firefighting water when a heat-sensitive plate detaches due to heat. When utilized in high-rise buildings, dry sprinklers offer the advantages of preventing pipe damage and minimizing water leakage in terms of maintenance and pipe durability.

[0009] As illustrated in FIG. 1, a conventional sprinkler head (Korean Patent Publication No. 10-2012-0021588) has a body (10) to which the piping of a fire extinguishing system is connected, and an internal passage (11) through which fire extinguishing liquid moves is formed in the body (10). A holder (40) is installed inside the body (10) to block the end of the inner wall of the body (10) so that the fire extinguishing liquid is not ejected.

[0010] The aforementioned holder (40) is supported by upper and lower couplings (51, 53). The couplings (51, 53) are connected to the lower heat collector (70), and when a fire occurs, the fuse (61) melts and operates together with the clamp ring (52) so that the holder (4) descends with the deflector (3). Accordingly, fire extinguishing liquid is ejected and the fire is suppressed.

[0011] A washer (20) and a seat are installed at the contact portion of the inner wall (12) of the holder (40) and the body (10). When the holder (40) is installed in this manner, the fire extinguishing liquid cannot pass through. That is, the watertightness is increased by installing the washer (20) and the seat (21).

[0013] A sprinkler head for a side wall is registered in Korean Patent Publication No. 10-2580010 (published September 19, 2023). The problem to be solved

[0014] The embodiments of this specification relate to a dry sprinkler head that increases the flow rate of fire extinguishing water passing through the inlet of the sprinkler head, thereby enabling rapid suppression of a fire in the early stages of its occurrence. means of solving the problem

[0015] According to one embodiment of the present specification, in order to achieve the above and other purposes of the present specification,

[0016] Applied to dry downward-type sprinkler heads,

[0017] A fitting holder connected to a drain pipe filled with fire extinguishing water, formed with both ends open, and hollow inside to allow fire extinguishing water to move;

[0018] An outer tube connected so that one end is connected to the above-mentioned fitting holder;

[0019] A tube cap plunger having a tube cap formed at one end for opening and closing the inlet of the fitting holder, and a through hole formed in a body extending from the tube cap through an extension piece for moving fire extinguishing water;

[0020] A flow tube having one end connected to the above-mentioned tube cap plunger and formed to be spaced apart from the above-mentioned outer tube, with a water passage formed inside through which fire extinguishing water introduced into the above-mentioned fitting holder moves;

[0021] A lower body connected to the other end of the outer tube and coupled to the flow tube so as to be movable in the longitudinal direction;

[0022] An elastic member installed between the fitting holder and the body of the tube cap plunger, elastically biasing the inlet closed by the tube cap back to its initial state;

[0023] A seat holder for sealing that is closely supported and openable at the outlet side of the above flow tube;

[0024] A deflector movably coupled to the lower body and restricting the direction of fire extinguishing water discharge moving along the waterway in the event of a fire;

[0025] A dry sprinkler head is provided, characterized by comprising: a heat-sensitive element that is detachably supported on the inner surface of the discharge port of the lower body, pressurizes the seat holder to prevent extinguishing water from leaking from the flow tube, is fixed to a rod screw supporting the seat holder, and is removed from the lower body when heat exceeding a predetermined temperature caused by a fire is detected by a heat collector plate and an internal fuse melts.

[0027] According to other embodiments of this specification, in order to achieve the above and other purposes of this specification,

[0028] Applied to dry sidewall type sprinkler heads,

[0029] A fitting holder connected to a drain pipe filled with fire extinguishing water, formed with both ends open, and hollow inside to allow fire extinguishing water to move;

[0030] An outer tube connected so that one end is connected to the above-mentioned fitting holder;

[0031] A tube cap plunger having a tube cap formed at one end for opening and closing the inlet of the fitting holder, and a through hole formed in a body extending from the tube cap through an extension piece for moving fire extinguishing water;

[0032] A flow tube having one end connected to the above-mentioned tube cap plunger and formed to be spaced apart from the above-mentioned outer tube, with a water passage formed inside through which fire extinguishing water introduced into the above-mentioned fitting holder moves;

[0033] A frame in which one end is connected to the other end of the outer tube and the flow tube is coupled so as to be movable in the longitudinal direction;

[0034] An elastic member installed between the fitting holder and the body of the tube cap plunger, elastically biasing the inlet closed by the tube cap back to its initial state;

[0035] A seat holder for sealing that is closely supported and openable at the outlet side of the above flow tube;

[0036] A deflector formed on the above frame and including an upper deflector and a front deflector that restrict the direction of fire extinguishing water discharge moving along the above waterway in the event of a fire;

[0037] A dry sprinkler head is provided, characterized by comprising: a heat-sensitive element that is detachably supported on the inner surface of the discharge port of the above-mentioned frame, pressurizes the seat holder to prevent leakage of fire extinguishing water from the flow tube, is fixed to a rod screw supporting the seat holder, and is removed from the above-mentioned frame when heat exceeding a predetermined temperature caused by a fire is detected by a heat collector plate and an internal fuse melts. Effects of the invention

[0038] A dry sprinkler head according to an embodiment of the present specification having the above-described configuration has the following advantages.

[0039] By increasing the flow of firefighting water through circumferentially repeated cuts on the outer surface of the tube cap plunger, which is mounted to be openable and closable at the inlet of the sprinkler head, sufficient firefighting water can be secured in the event of a fire, enabling rapid suppression in the early stages and minimizing casualties and property damage. Brief explanation of the drawing

[0040] FIG. 1 is a drawing of a dry sprinkler head according to the prior art, FIG. 2 is a drawing of a dry downward-type sprinkler head according to a preferred embodiment of the present specification (drawing in a state before operation), FIG. 3 is a diagram of the operating state of the sprinkler head shown in FIG. 2 (a diagram of the state after operation), FIG. 4 is a perspective view of a tube cap plunger that controls the inflow of fire extinguishing water filled in a drain pipe into a fitting holder in a sprinkler head shown in FIG. 2. FIG. 5 is a drawing of a dry sidewall type sprinkler head according to another preferred embodiment of the present specification (drawing in the pre-operation state), FIG. 6 is a diagram showing the usage state of the sprinkler head illustrated in FIG. 5 (a diagram showing the state after operation). Specific details for implementing the invention

[0041] Hereinafter, a dry sprinkler head according to a preferred embodiment of the present specification will be described in detail with reference to the attached drawings.

[0043] Referring to FIGS. 2 to 4, a dry downward sprinkler head according to one embodiment of the present specification is

[0044] In the event of a fire, the heat of the first and second heat collector plates (126, 127) installed on the heat-sensing element (114) is detected, causing the heat-sensing element (114) to be detached from the lower body (111) connected to the fitting holder (101) connected to the drain pipe (100) and the outer tube (102), thereby allowing fire extinguishing water passing through the flow tube (110) to be ejected. This is applied to a dry downward type sprinkler head.

[0045] A fitting holder (101) that is connected to a drain pipe (100) filled with fire extinguishing water, formed with both ends open, and has a hollow interior to allow the fire extinguishing water to move;

[0046] An outer tube (102) connected to a fitting holder (101) at one end;

[0047] A tube cap plunger (108) having a tube cap (104) that opens and closes the inlet (103) of a fitting holder (101) integrally formed at one end, and a body (106) that extends from the tube cap (104) through an extension piece (105) having a through hole (107) formed in the center through which extinguishing water moves;

[0048] A flow tube (110) having one end connected to the through hole (107) of the tube cap plunger (108) and formed to be spaced apart from the outer tube (102), and having a water passage (109) formed inside through which fire extinguishing water introduced into the fitting holder (101) moves;

[0049] A lower body (111) connected to the other end of the outer tube (102) and coupled so that the flow tube (110) can move in the longitudinal direction;

[0050] A conventional elastic member (112) installed between the fitting holder (101) and the body (106) of the tube cap plunger (108) and elastically biasing the inlet (103) closed by the tube cap (104) back to an initial state (as an example, a coil spring may be used);

[0051] A seat holder (121) for sealing by being closely supported and openable at the outlet side of the flow tube (110);

[0052] A conventional deflector (113) that is movably coupled to the lower body (111) and limits the direction of fire extinguishing water discharge moving along the water channel (109) in the event of a fire;

[0053] It is characterized by having a heat-sensing body (114) that is detachably supported on the inner side of the discharge port of the lower body (111), pressurizes the seat holder (121) to prevent fire extinguishing water from leaking from the flow tube (110), is fixed to a rod screw (122) that supports the seat holder (121), and is removed from the lower body (111) when heat above a predetermined temperature caused by a fire is detected by a heat collector plate and the internal fuse (119) melts.

[0054] At this time, the aforementioned conventional thermal element (114) may include a top coupling (123) that is detachably coupled to the inner surface of the discharge port of the lower body (111) and screw-coupled to a rod screw (122) that supports the seat holder (121), a low coupling (125) that is bent to surround a part of the top coupling (123) and supports a ring-shaped retainer ring (124) so ​​as not to detach outward, and a retainer ring (124) that is seated in a seating groove (not indicated in the drawing) on ​​the inner surface of the discharge port of the lower body (111) and blocks the top coupling (123) from detaching from the lower body (111).

[0055] The aforementioned heat-sensing body (114) is fixed by a rod screw (122) that is screw-coupled to the top coupling (123) and absorbs heat caused by a fire. It also includes first and second heat collection plates (126, 127) that are detached (separated) from the lower body (111) when heat above a predetermined temperature is transferred internally and the fuse (119) melts and decomposes. As a result of detaching (separating) the heat-sensing body (114) from the lower body (111), high-pressure fire extinguishing water passing through the flow path (109) of the flow tube (110) and the passage (120) of the outer tube (102) can be ejected through the deflector (113).

[0056] According to a more preferred embodiment, as shown in FIG. 4, the tube cap plunger (108) described above is alternately formed on the outer surface along the circumferential direction and is characterized by including protrusions (115) and incisions (116) to increase the amount of extinguishing water that flows into the fitting holder (101) and moves to the passage (120) between the flow tube (110) and the outer tube (102).

[0057] As shown in FIGS. 2 and 3, it is characterized by including a sealing O-ring (117) mounted on the outer surface of the aforementioned tube cap (104) to prevent fire extinguishing water from leaking into the fitting holder (101) through the gap between the inlet (103) and the tube cap (104).

[0058] As shown in FIGS. 2 and 3, the aforementioned tube cap plunger (108) is

[0059] The body (106) is characterized by being caught on a stopper (118) connected to the inlet (103) of the fitting holder (101), thereby preventing it from being detached from the fitting holder (101) through the inlet (103).

[0061] Hereinafter, a dry downward-type sprinkler head according to one embodiment of the present specification will be described in detail with reference to the attached drawings.

[0062] As shown in FIGS. 2 to 4, when a fire occurs inside a building, heat above a predetermined temperature is absorbed by the first and second heat collection plates (126, 127) of a heat-sensitive body (114) formed of a material with high thermal conductivity and transferred to a conventional fuse (119) fixed between the first and second heat collection plates (126, 127). The first and second heat collection plates (126, 127) are formed of a material with high thermal conductivity and are extended outward in a wing shape from the rod screw (122) so that when a fire occurs, they absorb heat and transfer it to the fuse (119) inside.

[0063] When the fuse (119) inside the aforementioned first and second heat collector plates (126, 127) melts and decomposes due to the heat of the fire, the supporting force of the heat-sensitive body (114) for the discharge port of the lower body (111) weakens, causing it to detach (remove) from the lower body (111), and consequently, the top coupling and lower coupling (123, 125) and the retainer ring (124) of the heat-sensitive body (114) detach from the lower body (111) in sequence.

[0064] That is, when the fuse (119) melts and decomposes due to heat above a predetermined temperature caused by a fire, the top coupling and row coupling (123, 125), retainer ring (124), and rod screw (122) forming the heat-sensitive body (114) supported at the discharge port of the lower body (111), and the first and second heat collecting plates (126, 127) detach from the lower body (111).

[0065] As described above, when a fire occurs inside a building and the fuse (119) inside the first and second heat collector plates (126, 127) detecting the fire melts and decomposes, the heat-sensing element (114) is detached from the discharge port of the lower body (111), and the seat holder (121) supported at the bottom of the flow tube (110) by the load screw (122) is detached.

[0066] As a result, the pressure of the fire extinguishing water filled in the aforementioned drain pipe (100) pressurizes the tube cap (104) closing the inlet (102) of the fitting holder (101), causing it to move into the fitting holder (101).

[0067] Accordingly, the fire extinguishing water of the drain pipe (100) passes through the inlet (103) of the fitting holder (101) which has been switched to an open state, then flows into the through hole (107) of the tube cap plunger (108) and moves to the flow tube (110).

[0068] In addition, when the fire extinguishing water of the aforementioned drain pipe (100) passes through the inlet (103) and moves into the fitting holder (101), the amount of fire extinguishing water moving into the passage (120) between the flow tube (110) and the outer tube (102) can be increased by the cuts (116) formed alternately along the circumferential direction on the outer circumference of the tube cap plunger (108) to allow the fire extinguishing water to pass through (as in FIG. 4, for example, four are formed).

[0069] Accordingly, by the pressure of the fire extinguishing water flowing in from the aforementioned drain pipe (100), the tube cap (104) is detached from the inlet (103) of the fitting holder (101) and moved into the fitting holder (101). As a result, the amount of fire extinguishing water moving from the fitting holder (101) to the passage (120) between the flow tube (110) and the outer tube (102) can be increased by the cut (116) formed in the circumferential direction on the outer circumference of the tube cap (104). Therefore, when a fire occurs, sufficient fire extinguishing water can be secured, allowing for rapid suppression in the early stages.

[0070] Accordingly, the fire extinguishing water passing through the outlet of the lower body (111) switched to open mode is ejected through the deflector (113).

[0072] Referring to FIGS. 5 and 6, a dry sidewall type sprinkler head according to another embodiment of the present specification is

[0073] This is applied to a dry sidewall type sprinkler head in which, when a fire occurs, the heat of the first and second heat collector plates (126, 127) installed on the heat-sensing body (114) is detected, causing the heat-sensing body (114) to be detached from the frame (140) connected to the fitting holder (101) connected to the drain pipe (100) and the outer tube (102), thereby allowing fire extinguishing water passing through the flow tube (110) to be ejected.

[0074] A fitting holder (101) that is connected to a drain pipe (100) filled with fire extinguishing water, formed with both ends open, and has a hollow interior to allow the fire extinguishing water to move;

[0075] An outer tube (102) connected so that one end is connected to a fitting holder (101);

[0076] A tube cap plunger (108) having a tube cap (104) formed at one end to open and close the inlet (103) of a fitting holder (101), and a through hole (107) formed in a body (106) that extends from the tube cap (104) through an extension piece (105) through which extinguishing water moves;

[0077] A flow tube (110) having one end connected to a tube cap plunger (108) and formed to be spaced apart from an outer tube (102), and having a water passage (109) formed inside through which fire extinguishing water introduced into a fitting holder (101) moves;

[0078] A frame (140) in which one end is connected to the other end of the outer tube (102) and the flow tube (110) is coupled so as to be movable in the longitudinal direction;

[0079] An elastic member (112) installed between the fitting holder (101) and the body (106) of the tube cap plunger (108), and elastically biasing the inlet (103) closed by the tube cap (104) back to an initial state (as an example, a coil spring may be used);

[0080] A seat holder (121) for sealing that is detachably and closely supported on the outlet side of the flow tube (110);

[0081] A deflector (143) formed on a frame (140) and including an upper deflector (141) and a front deflector (142) that restrict the direction of fire extinguishing water discharge moving along the waterway (109) in the event of a fire;

[0082] The invention is characterized by having a heat-sensing body (114) that is detachably supported on the inner side of the discharge port of the frame (140), pressurizes the seat holder (121) to prevent fire extinguishing water from leaking from the flow tube (110), is fixed to a rod screw (122) that supports the seat holder (121), and is removed from the frame (140) when heat above a predetermined temperature caused by a fire is detected by the second heat collector plates (126, 127) and the internal fuse (119) melts.

[0083] At this time, the configuration of the dry sidewall type sprinkler head, excluding the frame (140) connected to the other end of the aforementioned outer tube (102) and the deflector (143) including an upper deflector (141) and a front deflector (142) formed integrally with the frame (140) and limiting the direction of fire extinguishing water discharge passing through the flow tube (110), is substantially the same as the configuration of the dry downward type sprinkler head according to one embodiment of the present specification; therefore, a detailed description of the configuration and function thereof is omitted, and duplicate reference numerals indicate configurations having the same function.

[0084] Accordingly, as shown in FIG. 5 and FIG. 6, according to another embodiment of the present specification, when a fuse (119) inside the first and second heat collector plates (126, 127) melts due to heat when a fire occurs, the supporting force of the heat-sensitive body (114) for the discharge port of the frame (140) weakens and detaches from the frame (140), causing the top coupling and low coupling (123, 125) and the retainer ring (124) of the heat-sensitive body (114) to detach from the frame (140) in sequence.

[0085] That is, when the fuse (119) melts due to heat above a predetermined temperature caused by a fire and the first and second heat collector plates (126, 127) are decomposed, the top coupling and row coupling (123, 125), retainer ring (124), and rod screw (122) forming the heat-sensitive body (114) supported at the discharge port of the frame (140) will detach from the frame (140).

[0086] At this time, as the aforementioned upper and front deflectors (141, 142) are fixed to the upper and front of the frame (140), the fire extinguishing water ejected through the discharge port of the frame (140) can be effectively ejected toward the side through the upper deflector (12) and the front deflector (142).

[0088] Although the present specification has described preferred technical concepts by reference to examples, those skilled in the art to which the specification belongs will be able to make various modifications and equivalent alternative embodiments within the scope of the essential characteristics of the specification.

[0089] In other words, the disclosed content is merely an example and can be modified and implemented in various ways by a person skilled in the art without departing from the gist of the claim claimed in the scope of the claim; therefore, the scope of protection of the disclosed content is not limited to the specific embodiments described above.

[0090] Accordingly, the embodiments disclosed in this specification are intended to explain, not limit, the technical concept, and the scope of protection of this specification should be interpreted in accordance with the technical concept of the claims; furthermore, all technical concepts within an equivalent scope should be interpreted as being included within the scope of rights of this specification. Explanation of the symbols

[0091] 100; drain pipe 101; fitting holder 102; outer tube 103; inlet 104; tube cap 105; Extension 106; body 107; through hole 108; tube cap plunger 109; by the flow 110; Flow tube 111; lower body 112; elastic member 113; deflector 114; thermal element 115; protrusion 116; incision 117; Sealing O-ring 118; catch 119; fuse 120; passage 121; Seat holder 122; Road screw 123; Top coupling 124; retainer ring 125; Low coupling 126; First collector plate 127; 2nd collector plate 140; frame

Claims

Claim 1 A fitting holder applied to a dry downward-type sprinkler head, connected to a drain pipe filled with fire extinguishing water, formed with both ends open, and having a hollow interior to allow fire extinguishing water to move; an outer tube connected so that one end communicates with the fitting holder; a tube cap plunger having a tube cap formed at one end to open and close the inlet of the fitting holder, and a body extending from the tube cap through an extension piece having a through hole formed therein for fire extinguishing water to move through; a flow tube having one end communicating with the tube cap plunger and formed spaced apart from the outer tube, with a water passage formed inside for fire extinguishing water flowing into the fitting holder to move through; a lower body connected to the other end of the outer tube and coupled so that the flow tube can move in the longitudinal direction; an elastic member installed between the body of the fitting holder and the tube cap plunger, elastically biasing the inlet closed by the tube cap to an initial state; and a seat holder for sealing by being closely supported and openable at the outlet side of the flow tube. A deflector movably coupled to the lower body and restricting the direction of fire extinguishing water discharge moving along the waterway in the event of a fire; A dry sprinkler head comprising: a heat-sensitive element that is detachably supported on the inner surface of the discharge port of the lower body, pressurizes the seat holder to prevent leakage of fire extinguishing water from the flow tube, is fixed to a rod screw supporting the seat holder, and is removed from the lower body when heat exceeding a predetermined temperature caused by a fire is detected by a heat collector plate and an internal fuse melts; wherein the dry sprinkler head comprises: a protrusion and a cut portion alternately formed along the circumferential direction on the outer surface of the tube cap plunger to increase the amount of fire extinguishing water flowing into the fitting holder and moving into the passage between the flow tube and the outer tube, wherein the tube cap plunger is configured such that the body is caught on a stopper connecting to the inlet of the fitting holder to prevent it from being detached from the fitting holder through the inlet. Claim 2 delete Claim 3 delete Claim 4 delete Claim 5 delete

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