Sprinkler Having A Flanged Nipple

Abstract

The present invention relates to a sprinkler having a flange nipple, wherein the upstream end is connected to a water supply source and the downstream end is exposed to a sprinkler space (S) within a duct (D), and a fixing pin (19) is formed on the middle of the outer surface of the flange nipple (3) so as to be fixed to the outer surface of the duct (D); The device comprises a head (5) that is detachably coupled to the outlet (11) at the downstream end of the flange nipple (3) and sprays fire extinguishing water supplied from the water source into the sprinkler space (S) upon detection of fire in the sprinkler space (S); wherein the fixing pin (19) is integrally formed to extend radially from the middle of the outer surface of the flange nipple (3) and is directly fixed to the duct (D) through a fastening means (25). Thus, since the sprinkler is installed facing the inside of the smoke control duct, fire or heat that has entered the duct can be suppressed through the sprinkler, and the assembly structure of the sprinkler can be simplified through the flange nipple of the sprinkler, thereby making it easy to assemble and disassemble the sprinkler in the duct.

Description

Technology Field

[0001] The present invention relates to a sprinkler equipped with a flange nipple, and more specifically, to a sprinkler equipped with a flange nipple that can be simply fixed to the outer surface of a duct to spray fire extinguishing water into a sprinkler space inside the duct to suppress fire or heat entering the duct in the event of a fire. Background Technology

[0002] As shown in FIG. 1, a fire sprinkler for a conventional building comprises a fire extinguishing reservoir (101), a primary pipe (012) including a riser pipe connected to the reservoir (101) and installed within a pipe duct (D), a secondary pipe (104) connected to the primary pipe (102) through an opening / closing valve (103) and installed within the ceiling, and a sprinkler head (5) installed in the secondary pipe (104) and exposed from the ceiling.

[0003] When a fire is detected by a fire detector, the fire extinguishing water is supplied to and filled in the first pipe (102), and the shut-off valve (103) is opened so that fire extinguishing water is also supplied to and filled in the second pipe (104), but the fuse provided in the sprinkler head (105) is removed by melting at a high temperature before water spraying occurs.

[0004] However, recently, in order to quickly remove combustion gases generated indoors during a fire, not only is the pipe duct (D) as described above utilized, but a separate smoke exhaust duct is also installed inside the building to reduce casualties caused by toxic combustion gases.

[0005] However, when a fire occurs very close to a pipe duct (D) or smoke exhaust duct and heat and flames penetrate into the duct, the fire inside the duct cannot be extinguished by sprinklers outside the duct, so the duct is easily destroyed, and as a result, combustion gases are not exhausted, which causes a problem of significant casualties. Prior art literature

[0006] KR 10-1658935 The problem to be solved

[0007] The present invention is proposed to solve the problems associated with the conventional sprinkler installation structure described above. Its purpose is to install the sprinkler with the sprinkler head facing inward toward the duct, thereby suppressing fire or heat that has entered the building's duct upon the occurrence of a fire, preventing the duct from collapsing, and ensuring the stable exhaust of toxic combustion gases through the duct, ultimately thereby reducing casualties caused by toxic gases.

[0008] In addition, another purpose is to simplify the structure of the sprinkler when installing it in the duct, thereby enabling the installation and removal of the sprinkler to be more convenient and stable.

[0009] In addition, there is another purpose to facilitate the installation and removal of sprinklers as described above, while maintaining the sealing performance of the duct as a combustion gas exhaust passage without change. means of solving the problem

[0010] To achieve this objective, the present invention provides a sprinkler comprising: a flange nipple having an upstream end connected to a water supply source and a downstream end exposed to a sprinkler space within a duct, with a fixing pin formed in the middle of the outer surface so as to be fixed to the outer surface of the duct; and a head detachably coupled to the outlet of the downstream end of the flange nipple to sprinkle fire extinguishing water supplied from the water supply source into the sprinkler space upon detection of a fire in the sprinkler space, wherein the fixing pin is integrally formed to extend radially from the middle of the outer surface of the flange nipple and is directly fixed to the duct through a fastening means.

[0011] In addition, it is preferable that the above flange nipple be manufactured by casting such that the inner diameter gradually decreases from the upstream end to the downstream end.

[0012] Additionally, the flange nipple preferably comprises: a body in which the outer diameter of the upstream side is reduced at the boundary of a notched step to form a reduced diameter on the downstream side; and a fixing pin fitted into the reduced diameter to engage with the notched step and formed integrally with the body.

[0013] In addition, it is preferable that the body be integrally coupled with the fixing pin by means of an interference fit between the fitting hole and the fitting seat by forming a fitting seat having an outer diameter identical to the inner diameter of the fitting hole of the fixing pin at an adjacent portion of the notched step of the shaft portion.

[0014] In addition, it is preferable that the body be integrally joined with the fixing pin by inserting the fitting hole of the fixing pin into the notched step and then welding the fitting hole to the outer surface.

[0015] Additionally, it is preferable that the flange nipple further includes a sealing ring interposed between the inner surface of the fixing pin facing the duct and the outer surface of the duct when the fixing pin is in close contact with the outer surface of the duct, thereby sealing the gap between the outer surface of the duct and the inner surface of the fixing pin. Effects of the invention

[0016] According to the sprinkler equipped with a flange nipple of the present invention, the sprinkler can be installed so that the head is directed toward the interior of a duct, such as a smoke exhaust duct, and thereby exposed to the sprinkler space within the duct. Consequently, in the event of a fire, fire or heat that has entered the interior of the duct can be suppressed through the sprinkler, thereby preventing the destruction of the duct and ensuring the smooth exhaust of toxic gases through the duct. This allows for a significant reduction in casualties caused by toxic gases.

[0017] In addition, when installing a sprinkler with the head facing the inside of the duct, the sprinkler can be simply fixed to the duct by inserting the head into the duct opening and then screwing the fixing pin, which is integrated with the body of the flange nipple, to the outer wall of the duct using fastening means such as screws, thereby further improving the convenience of installing or removing the sprinkler.

[0018] In addition, the fixing pin can be easily and conveniently attached to or detached from the outer wall of the duct by tightening or loosening a fastening means such as a screw, and since a sealing ring is interposed between the inner surface of the fixing pin facing the duct and the outer surface of the duct (D), leakage of combustion gas passing through the duct can be reliably prevented. Brief explanation of the drawing

[0019] FIG. 1 is a drawing showing the installation structure of a conventional duct and sprinkler. FIG. 2 is a perspective view showing a sprinkler having a flange nipple according to one embodiment of the present invention installed on the outer surface of a duct. FIG. 3 is an enlarged perspective view of the sprinkler of FIG. 2. Fig. 4 is a cross-sectional view of Fig. 3. FIG. 5 is a disassembled perspective view of the sprinkler of FIG. 2. FIG. 6 is a perspective view showing the flange nipple of the sprinkler illustrated in FIG. 2 to FIG. 5 in a state prior to being manufactured by press-fitting. Specific details for implementing the invention

[0020] Hereinafter, a sprinkler equipped with a flange nipple according to one embodiment of the present invention will be described in detail with reference to the attached drawings.

[0021] As shown by reference numeral 1 in FIGS. 2 and 3, the sprinkler of the present invention is applied to various types of ducts, such as supply and exhaust ducts (D). When applied to smoke control ducts, it prevents the duct from melting by removing the fire and high heat applied to the duct in the event of a fire. It is mainly composed of a flange nipple (3) and a head (5).

[0022] Here, the flange nipple (3) is a part that forms the body of the sprinkler (1), and a water supply pipe is connected to its upstream end, that is, the left end in the drawing, to supply fire extinguishing water flowing into the water supply source to the head (5). In addition, its downstream end, that is, the right end in the drawing, is positioned to penetrate the outer wall of the duct (D) and be exposed to the sprinkler space (S) inside the duct (D), and as shown in FIG. 5, the head (5) is fitted and connected to the outlet (11) formed at the downstream end.

[0023] To this end, the flange nipple (3) has a female threaded portion (13) formed on the lower inner surface extending to the downstream outlet (11), as shown in FIG. 5, and is screw-coupled with a male threaded portion (15) formed on the outer surface of one side of the head (5), that is, the left end in the drawing. At this time, the female threaded portion (13) is tapered so that its inner diameter decreases as it moves further away from the outlet (11), that is, as it gets deeper inside. As a result, the flange nipple (3) sprays fire extinguishing water, which has flowed in from the water source through the water supply pipe, into the spray space (S) inside the duct (D) through the head (5) when a fire is detected.

[0024] Meanwhile, as shown in FIGS. 2 to 5, a fixing pin (19) is formed by extending radially from the middle of the outer circumference of the body (17) so that the entire flange nipple (3) can be fixed to the outer surface of the duct (D). At this time, the fixing pin (19) can be formed integrally on the outer circumference of the body (17) of the flange nipple (3), for example, through casting. Accordingly, the fixing pin (19) is fixed directly to the outer surface of the duct (D) through a fastening means (25), such as a screw, thereby fixing the entire flange nipple (3) to the outer surface of the duct (D). In addition, as the flange nipple (3) is cast integrally as described above, as shown in FIG. 4, the inner diameter is manufactured to gradually decrease from the upstream end to the downstream end, that is, from the left to the right in the drawing.

[0025] On the other hand, the flange nipple (3) can be manufactured without casting. That is, as shown in FIG. 6, the flange nipple (3) can be manufactured by separately manufacturing the body (17) and the fixing pin (19) and then combining the body (17) and the fixing pin (19) in various ways.

[0026] Here, the body (17) is a pipe-shaped cylindrical body forming the main body of the flange nipple (3), and can be manufactured by machining or casting. However, the body (17) forms a notch-shaped step (27) in the middle of the outer surface, and the outer diameter of the downstream outer surface is reduced along the notch-shaped step (27) to create a reduced diameter portion (33). At this time, various means, such as screw threads, for attaching a fixing pin (19) can be implemented in the area adjacent to the notch-shaped step (27) of the reduced diameter portion (33) of the body (17).

[0027] However, in this embodiment, as shown in FIG. 6, the downstream portion adjacent to the notched step (27) is reduced to two stages to form a fitting seat (29) in the adjacent portion. Accordingly, the body (17) is formed with an outer diameter portion (31) on the upstream side and a narrow diameter portion (33) on the downstream side, and the boundary between the upstream and downstream sides is formed as a notched step (27). At this time, the fitting seat (29) is made to have an outer diameter equal to the inner diameter of the fitting hole (35) of the fixing pin (19). By doing so, the fitting hole (35) of the fixing pin (19) and the fitting seat (29) of the body (17) are joined by a forced fit, thereby allowing the body (17) and the fixing pin (19) to be joined as a single unit.

[0028] Additionally, as another embodiment, the body (17) can be formed into a sculpted section (33) by reducing the entire downstream portion from the notched step (27) to a single step, although this is not illustrated. That is, the downstream portion of the notched step (27) can be formed into a sculpted section (33) without a fitting seat (29). In this case, the body (17) can be formed integrally with the fixing pin (19) by inserting the fitting hole (35) into the sculpted section (33) until the fixing pin (19) catches on the notched step (27), and then welding the fitting hole (35) to the edge of the notched step (27) and the outer surface of the sculpted section (33).

[0029] The above fixing pin (19) is a plate material that makes the fixing pin (19) of the flange nipple (3), and is fitted into the axial portion (33) of the body (17) so as to be caught on the notched step (27), and is formed integrally with the body (17) through various methods as mentioned above, and is firmly connected to the outer wall of the duct (D) through fastening means (25) such as screws as shown in FIGS. 2 to 4, thereby fixing the sprinkler (1) to the duct (D).

[0030] At this time, the flange nipple (3) further includes a sealing ring (21) made of a highly elastic material such as rubber, as shown in FIGS. 4 and 5. The sealing ring (21) is fitted into a ring seat (23) formed concavely on the inner surface of the fixing pin (19) facing the duct (D), as shown in FIGS. 5. Accordingly, when the fixing pin (19) is in close contact with the outer surface of the duct (D) as in FIG. 4, the sealing ring (21) is interposed between the inner surface of the fixing pin (19) facing the duct (D) and the outer surface of the duct (D), thereby sealing the gap between the outer surface of the duct (D) and the inner surface of the fixing pin (19).

[0031] The head (5) is a part that sprays extinguishing water into the spraying space (S) when a fire, i.e., a flame, is detected in the spraying space (S). As shown in FIGS. 3 to 5, it is detachably connected to the outlet (11) of the flange nipple (3) by screw connection, and thus sprays extinguishing water supplied from the water source through the flange nipple (3) into the spraying space (S). At this time, the head (5) is tapered so that the outer diameter of the male screw part (15), which is screw-connected to the female screw part (13), increases as it moves away from the top, that is, as it gets closer to the head base (51) of the head (5), so that the male screw part (15) corresponds to the tapered shape of the female screw part (13).

[0032] Now, the operation of a sprinkler (1) equipped with a flange nipple according to one embodiment of the present invention is described as follows.

[0033] According to the sprinkler (1) of the present invention, when installing the sprinkler (1) toward the sprinkler space (S) inside the duct (D) as shown in FIG. 2, the head (5) and the flange nipple (3) are inserted sequentially through the through hole (H) penetrating the outer wall of the duct (D) as shown in FIG. 4.

[0034] Afterwards, when the fixing pin (19) comes into contact with the outer wall of the duct (D), the fixing pin (19) is fixed to the outer wall of the duct (D) through the fastening means (25) while the fixing pin (19) is pressed against the outer wall, thereby allowing the installation of the sprinkler (1) for the duct (D) to be completed simply.

[0035] At this time, the gap between the outer wall of the duct (D) and the inner surface of the fixing pin (19) facing the duct (D) is sealed by the sealing ring (21), so that smoke passing through the duct (D) in the event of a fire can be prevented from leaking out of the duct (D).

[0036] After installation is complete, if a fire occurs and flames enter the duct (D) or the duct (D) heats up and the head (5) opens, fire extinguishing water supplied from the water supply source through the flange nipple (3) is sprayed through the head (5) into the spray space (S) of the duct (D), thereby suppressing the flames or heat inside the duct (D) and preventing damage to the duct (D), such as the duct (D) melting due to the flames or heat. At this time, since the head (5) is installed horizontally to the side of the duct (D), the fire extinguishing water sprayed from the head (5) that is directed upward is deflected downward through the deflector (53) and directed toward the bottom of the duct (D), thereby extinguishing the flames rising from the bottom of the duct (D) more efficiently.

[0037] In this way, the sprinkler (1) of the present invention, whether the entire flange nipple (3) is manufactured by casting, or the body (17) and the fixing pin (19) are manufactured by press-fitting through the fitting seat (29) as shown in FIG. 6, or the fixing pin (19) is manufactured by welding it to the notched step (27) of the body (17) without the fitting seat (29), or even by screwing the body (17) and the fixing pin (19) together by machining a screw in the fitting seat (29) and the fitting hole (35), can be simply fixed to the outer wall around the through hole (H) by means of fastening (25), such as a screw, when the integrated flange nipple (3) is inserted into the through hole (H) of the duct (D), thereby further improving the convenience of installation of the sprinkler (1).

[0038] Although specific embodiments of the present invention have been described above by way of example, these are for illustrative purposes only and are not intended to limit the scope of protection of the present invention. It will be obvious to those skilled in the art that various substitutions, modifications, and changes are possible within the scope of the technical spirit of the present invention. Explanation of the symbols

[0039] 1 : Sprinkler 3 : Flange nipple 5 : Head 11 : Outlet 13: Female thread 15: Male thread 17 : Body 19 : Fixing pin 21 : Sealing ring 23 : Ring seat 25 : Fastening means 27 : Notched step 29 : Insertion spot 31 : External diameter 33 : Shaft section 35 : Insertion hole D: Duct H: Through hole S : Sprinkler space

Claims

Claim 1 A flange nipple (3) having an upstream end connected to a water supply source and a downstream end exposed to a sprinkler space (S) within a duct (D), with a fixing pin (19) formed on the middle of the outer surface to be fixed to the outer surface of the duct (D); and a head (5) detachably coupled to the outlet (11) of the downstream end of the flange nipple (3) to sprinkle fire extinguishing water supplied from the water supply source into the sprinkler space (S) when a fire is detected in the sprinkler space (S); wherein the fixing pin (19) is integrally formed to extend radially from the middle of the outer surface of the flange nipple (3) and is directly fixed to the duct (D) through a fastening means (25); and the flange nipple (3) comprises a body (17) in which the outer diameter of the upstream side outer diameter portion (31) is reduced at the boundary of a notch-shaped step (27) to form a reduced diameter portion (33) on the downstream side; A sprinkler having a flange nipple, characterized by comprising: a fixing pin (19) that is fitted into the shaft portion (33) to engage with the notched step (27) and becomes integral with the body (17). Claim 2 A sprinkler having a flange nipple according to claim 1, wherein the flange nipple (3) is manufactured by casting such that the inner diameter gradually decreases from the upstream end to the downstream end. Claim 3 delete Claim 4 A sprinkler having a flange nipple according to claim 1, wherein the body (17) is integrally coupled with the fixing pin (19) by means of a press fit between the fitting hole (35) and the fitting seat (29) by forming a fitting seat (29) having an outer diameter equal to the inner diameter of the fitting hole (35) of the fixing pin (19) in a portion adjacent to the notched step (27) of the shaft portion (33). Claim 5 A sprinkler having a flange nipple according to claim 1, wherein the body (17) is integrally joined with the fixing pin (19) by fitting the fitting hole (35) of the fixing pin (19) into the notched step (27) and then welding the fitting hole (35) to the outer surface. Claim 6 A sprinkler having a flange nipple, wherein, in any one of claims 1, 2, 4 or 5, the flange nipple (3) further comprises a sealing ring (21) interposed between the inner surface of the fixing pin (19) facing the duct (D) and the outer surface of the duct (D) when the fixing pin (19) is in close contact with the outer surface of the duct (D), thereby sealing the gap between the outer surface of the duct (D) and the inner surface of the fixing pin (19).

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