Sealing device for springkler head

Abstract

According to one embodiment, a sealing device for a sprinkler head comprises a drain pipe filled with fire extinguishing water, a fastening frame connected to the drain pipe, a cover portion disposed at the end of the fastening frame, and a sealing device disposed within the fastening frame to block the entry of the fire extinguishing water, wherein the sealing device is disposed between a first seating groove formed in the drain pipe and a second seating groove formed in a part of the cover portion, and the sealing device may include: a sealing seating member comprising a first protrusion in a central portion, a seating portion extending from the first protrusion, and a locking portion extending from the seating portion; a sealing member having a single layer, one surface in close contact with the first seating groove and the other surface in close contact with the seating portion; and a sealing spring cap that is in close contact between the second seating groove and the sealing seating member and comprises a central second protrusion inserted into the first protrusion, a horizontal portion extending from the second protrusion and in close contact with the seating portion, and an edge portion extending from the horizontal portion and in close contact with the second seating groove. In addition to this, various other embodiments identified through the specification may be possible.

Description

Technology Field

[0001] The present disclosure relates to a sealing device for a sprinkler head installed in a building or apartment, which sprays water to suppress a fire or inhibit the spread of fire when a fire occurs. Background Technology

[0003] A sprinkler may be part of a fire suppression system that discharges firefighting water for fire suppression by detecting heat in the event of a fire, causing the internal heat-sensitive element to be destroyed or melted, thereby releasing the seal inside the head and allowing high-pressure water (firefighting water) flowing in through the drain pipe connected to the head to be ejected to the outside.

[0004] These sprinklers can be classified into dry type and wet type based on the method of spraying fire extinguishing water or extinguishing agent.

[0005] Wet sprinklers are mainly used in general households, apartments, and commercial buildings, and may be of the type that uses a retainer ring that shrinks due to partial melting of a heat-sensitive element (e.g., fuse metal) when a fire starts, and is filled with firefighting water inside.

[0006] Meanwhile, dry sprinklers are a type in which firefighting water is discharged when a heat-sensitive element detaches due to heat; when utilized in high-rise buildings, they can prevent pipe damage and minimize the leakage of firefighting water in terms of maintenance and pipe durability.

[0007] The information described above may be provided as related art for the purpose of aiding understanding of the present disclosure. No claim or determination is made as to whether any of the foregoing may be applied as prior art in relation to the present disclosure. Prior art literature

[0009] Republic of Korea Registered Utility Model Publication 20-0154735 (Published Aug. 16, 1999) The problem to be solved

[0010] However, the various types of sprinklers mentioned are installed in various locations such as ceilings and side walls, and when they detect heat caused by a fire, they automatically spray firefighting water to suppress the fire. However, there is a problem with the sealing structure that blocks the entry of firefighting water, so water leakage occurs.

[0011] In order to prevent such fire water leakage, the sealing structure of the sealing part was made to have two or more layers, and was a structure that was self-sealing and elastic, but there is a problem that the sealing structure becomes complex.

[0012] The technical problems to be solved in this document are not limited to those mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art to which this invention belongs from the description below. means of solving the problem

[0014] As a technical means to achieve the aforementioned technical problem, one aspect of the present disclosure is to provide a sealing device for a sprinkler head that simplifies the sealing structure and improves the sealing function.

[0015] According to one embodiment, a sealing device for a sprinkler head comprises a drain pipe filled with fire extinguishing water, a fastening frame connected to the drain pipe, a cover portion disposed at the end of the fastening frame, and a sealing device disposed within the fastening frame to block the entry of the fire extinguishing water, wherein the sealing device is disposed between a first seating groove formed in the drain pipe and a second seating groove formed in a part of the cover portion, and the sealing device may include: a sealing seating member comprising a first protrusion in a central portion, a seating portion extending from the first protrusion, and a locking portion extending from the seating portion; a sealing member having a single layer, one surface in close contact with the first seating groove and the other surface in close contact with the seating portion; and a sealing spring cap that is in close contact between the second seating groove and the sealing seating member and comprises a central second protrusion inserted into the first protrusion, a horizontal portion extending from the second protrusion and in close contact with the seating portion, and an edge portion extending from the horizontal portion and in close contact with the second seating groove. Effects of the invention

[0017] According to various embodiments of the present disclosure, the sealing function of the sealing part can be improved by simplifying the sealing structure of the sprinkler head and increasing the number of sealing points.

[0018] The effects obtainable from the present disclosure are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art to which the present disclosure belongs from the description below. Brief explanation of the drawing

[0020] FIG. 1 is a perspective view showing the appearance of a sprinkler head according to one embodiment. FIG. 2 is a cross-sectional view showing the internal structure of a sprinkler head according to one embodiment. FIG. 3 is an exploded perspective view showing the important components of a sprinkler head according to one embodiment. FIG. 4 is a cross-sectional view showing a sealing device placed in a sprinkler head according to one embodiment. FIG. 5a is a perspective view showing a sealing member of a sealing device of a sprinkler head according to one embodiment, and FIG. 5b is a cross-sectional view thereof. FIG. 6 is a cross-sectional view showing an enlarged view of a plurality of sealing points of a sealing device according to one embodiment. In relation to the description of the drawings, the same or similar reference numerals may be used for identical or similar components. Specific details for implementing the invention

[0021] Hereinafter, embodiments are described in detail with reference to the attached drawings so that those skilled in the art can easily implement the present invention. However, the disclosed embodiments may be implemented in various different forms and are not limited to the embodiments described herein.

[0022] FIG. 1 is a perspective view showing the appearance of a sprinkler head according to one embodiment.

[0023] Referring to FIG. 1, according to one embodiment, a sprinkler head (10) is installed inside a building such as a building or on the ceiling of an apartment and is a firefighting equipment that sprays water to suppress a fire or suppress the spread of fire when a fire occurs, and can be arranged in a vertical or side wall type.

[0024] For example, the vertical type is a type in which the sprinkler head (10) is positioned vertically on the ceiling surface inside the building, and the side wall type may be a type in which the sprinkler head (10) is positioned on the side wall of the building. The sprinkler head (10) according to one embodiment is not limited to being applied to a vertical type sprinkler and may be applied to a side wall type sprinkler.

[0025] According to one embodiment, the sprinkler head (10) may include a fastening portion (601) on the outer surface of the fastening frame to be fastened to a drain pipe. For example, the fastening portion (601) may include screw threads.

[0026] FIG. 2 is a cross-sectional view showing the internal structure of a sprinkler head according to one embodiment. FIG. 3 is an exploded perspective view showing the main components of a sprinkler head according to one embodiment.

[0027] Referring to FIGS. 2 and 3, the sprinkler head (10) may include a fastening frame (20), a cover part (30), a heat detection part (40), and a sealing part (50).

[0028] According to one embodiment, the sprinkler head (10) may have a sealing portion (50) disposed within the fastening frame (20) and a heat sensing portion (40) disposed outside the fastening frame (20). A cover portion (30) may be disposed between the sealing portion (50) and the heat sensing portion (40). According to one embodiment, the cover portion (30) may be disposed at one end of the fastening frame (20).

[0029] According to one embodiment, the fastening frame (20) may be made of metal and be a roughly hollow frame connected to a drain pipe. According to one embodiment, the fastening frame (20) may include a sealing part (50) that prevents the entry of firefighting water and seals the interior. Whether or not firefighting water is ejected to the outside of the fastening frame (20) may be determined by whether or not the sealing part (50) moves. When the sealing state of the sealing part (50) is released by the operation of the heat detection part (40), the high-pressure firefighting water inside the fastening frame (20) may be ejected toward the deflector.

[0030] According to one embodiment, the cover portion (30) is disposed at one end of the fastening frame (20) and supports the sealing portion (50), thereby transmitting a force to maintain the sealing state of the sealing portion (50). According to one embodiment, the cover portion (30) is detachable from one end of the fastening frame (20) and can perform the function of supporting the sealing portion (50). According to one embodiment, the cover portion (30) may include rod-type first and second fastening members (31, 32) and a retainer ring (33). According to one embodiment, the first rod-type fastening member (31) may be used to adjust the elastic force of the sealing spring cap (53) described later. For example, the rod-type first fastening member (31) can adjust the sealing degree of the sealing portion (50) according to the amount of the rod-type second fastening member (32). According to one embodiment, the retainer ring can be prevented from coming off by the support plate (34). According to one embodiment, the rod-type second fastening member (32) can be supported by a seating groove within the frame (20).

[0031] According to one embodiment, the heat sensing unit (40) may include first and second heat collecting plates (41, 42) and a heat sensing body (43). According to one embodiment, each of the first and second heat collecting plates (41, 42) may be formed of a material with a high heat transfer rate and have a shape that facilitates heat collection, and may be arranged horizontally relative to each other. According to one embodiment, the heat sensing body (43) may be placed between the first and second heat collecting plates (41, 42) and may be formed of a material that melts at a certain temperature or higher. For example, the heat sensing body (43) may include a fuse. Heat transferred to the first and second heat collecting plates (41, 42) with excellent heat conductivity can be quickly transferred to the heat sensing body (43). For example, the shape that facilitates heat collection may include a shape that includes a structure extending in a horizontal direction, such as a container shape or a cap shape. According to one embodiment, the heat sensing unit (40) can be integrally fastened to the cover unit (30) by means of a fastener. For example, the fastener may include a screw.

[0032] According to one embodiment, the sealing part (50) is a unit that blocks and seals the entry of firefighting water within the fastening frame (20), and can seal the firefighting water passage inside the fastening frame (20). According to one embodiment, the sealing part (50) can block the entry of firefighting water in a high-pressure state by sealing the hollow passage of the fastening frame (20). According to one embodiment, the sealing part (50) can maintain a pressurized state to always block the entry of firefighting water.

[0033] According to one embodiment, the sealing portion (50) may include a sealing sheet member (51), a sealing connection cap (52), and a sealing spring cap (53). According to one embodiment, the sealing sheet member (51) is ring-shaped and may perform the function of sealing the space between the sealing spring cap (53) and the internal space of the fastening frame (20) filled with fire extinguishing water. For example, the sealing sheet may be made of Teflon material and may include an adhesive function and an elastic function. According to one embodiment, the sheet sealing connection cap (52) may be arranged coaxially between the sealing sheet member (51) and the sealing spring cap (53) and may perform the function of pressing the sealing sheet member (51) against the sealing sheet member (51). According to one embodiment, the sealing spring cap (53) may be a single-membered cap-shaped member possessing elasticity and may perform the function of pressing the sealing connection cap (52). The sealing sheet member (51) can perform a sealing function by maintaining a state of close contact with the internal space through the elastic force of the sealing spring cap (53).

[0034] When a fire occurs, the heat sensor (43) melts at a temperature above a certain level, and subsequently, the support force of the cover part (30) for the fastening frame (20) weakens, so the cover part (30) may detach from the fastening frame. Subsequently, as the cover part (30) that was supporting the sealing part (50) detaches, the sealing state of the sealing part (50) is released, and high-pressure firefighting water is ejected outside the fastening frame (20) and can be ejected at high speed toward the deflector.

[0035] According to one embodiment, the sprinkler head (10) may include a plurality of deflectors (not shown) that guide the direction of discharge of the discharged firefighting water.

[0036] Referring to FIGS. 4 to 6, according to one embodiment, the sealing portion may include a sealing member (61). According to one embodiment, the sealing member (61) is a seating member disposed between a first seating recess (150) formed in the drain pipe (15) and a second seating recess (320) formed in the fastening member (32) of the cover portion (30), and may be a member having at least three functions among a seating function, a sealing function, an adhesive function, and an elastic function. According to one embodiment, the first seating recess (150) is not limited to being formed in the drain pipe (15) and may be formed in a structure similar to the first seating recess (150) within the fastening frame (20).

[0037] According to one embodiment, the sealing member (61) has a shape similar to a washer and is a single layer, comprising a first surface (e.g., upper surface) (601) and a second surface (e.g., lower surface) (602) opposite to the first surface, and may have a coin-shaped opening (603) located at the center. For example, the upper surface (601) may be a planar surface and may be ring-shaped, and the lower surface (602) may be a planar surface and may be ring-shaped. For example, the sealing member (61) may be made of Teflon (polytetrafluoroethylene). According to one embodiment, the sealing member (61) may be formed of an elastic material that is compressed when pressure is applied, so as to be able to perform a sealing function, and may be formed of an adhesive material that adheres to the surface.

[0038] Referring to the attached drawing, the sealing state of the above-described sealing device is as follows.

[0039] Referring to FIG. 6, according to one embodiment, the sealing device of the sprinkler head (10) may include a sealing member (61), a sealing seating member (62), and a sealing spring cap (63). According to one embodiment, the sealing device may be positioned between the fastening frame (20) and the cover part (30) to block the entry of firefighting water filled in the pipe water (15).

[0040] According to one embodiment, the sealing mounting member (62) may include a protrusion (620) formed in a central portion, a mounting portion (622) formed in a periphery portion, and a catch portion (624) formed on an edge. According to one embodiment, the mounting portion (622) may extend from the protrusion (620), and the catch portion (624) may extend from the mounting portion (622). The protrusion (620) facilitates the insertion of the sealing member (61), the mounting portion (622) allows the sealing member (61) to be stably positioned, and the catch portion (624) may function to fix the sealing mounting member (62). According to one embodiment, the mounting portion (622) includes a flat surface, and the sealing member (61) may be mounted on that surface.

[0041] According to one embodiment, when a sealing member (61) is seated on a seating portion (622) of a sealing seating member (62), one side of the seating portion (622) and the lower surface (602) of the sealing member can be in close contact with each other.

[0042] According to one embodiment, the sealing spring cap (63) has a cap-shaped cross section and may include a central protrusion (630), a horizontal portion (632) in close contact with the seating portion (622), and an edge portion (634) in close contact with the second seating groove (320). The horizontal portion (632) may extend from the protrusion (630), and the edge portion (634) may extend from the horizontal portion (632). According to one embodiment, when the sealing spring cap (63) is mounted, the protrusion (630) is inserted into the protrusion (620) of the sealing seating member, the horizontal portion (632) is in close contact with the seating portion (622) of the sealing seating member, and the edge portion (634) may be in close contact with the second seating groove (320).

[0043] Depending on the arrangement of the sealing members described above, multiple contact portions, i.e., sealing portions, may be provided. According to one embodiment, a first sealing portion (p1) may be located in the contact portion between the upper surface (601) of the sealing member and the first seating groove (150), a second sealing portion (p2) may be located in the contact portion between the lower surface (602) of the sealing member and one surface (e.g., upper surface) of the seating portion (622), a third sealing portion (p3) may be located in the contact portion between the other surface (e.g., bottom surface) of the seating portion and one surface of the horizontal portion (632), and a fourth sealing portion (p4) may be located in the contact portion between the edge portion (634) and the second seating groove (320). Each of the aforementioned sealing portions (p1-p4) may be a contact portion and may be a pressure portion applied by the cover portion (30).

[0044] A sealing device according to one embodiment can have its sealing function improved according to the plurality of contact structures mentioned above.

[0045] In addition, the aforementioned sealing portions (p1-p4) can be formed as a face-to-face contact structure.

[0046] In the present disclosure, "comprising at least one of a, b, or c" may mean "comprising only a, comprising only b, comprising only c, or comprising a combination of two or more (comprising a and b, comprising b and c, comprising a and c, or comprising all of a, b, and c)."

[0047] According to one embodiment, a sealing device for a sprinkler head comprises a drain pipe filled with fire extinguishing water, a fastening frame connected to the drain pipe, a cover portion disposed at the end of the fastening frame, and a sealing device disposed within the fastening frame to block the entry of the fire extinguishing water, wherein the sealing device is disposed between a first seating groove formed in the drain pipe and a second seating groove formed in a part of the cover portion, and the sealing device may include: a sealing seating member comprising a first protrusion in a central portion, a seating portion extending from the first protrusion, and a locking portion extending from the seating portion; a sealing member having a single layer, one surface in close contact with the first seating groove and the other surface in close contact with the seating portion; and a sealing spring cap that is in close contact between the second seating groove and the sealing seating member and comprises a central second protrusion inserted into the first protrusion, a horizontal portion extending from the second protrusion and in close contact with the seating portion, and an edge portion extending from the horizontal portion and in close contact with the second seating groove.

[0048] According to one embodiment, a first sealing portion is formed between one surface of the sealing member and the first seating groove, a second sealing portion is formed between the other surface of the sealing member and one surface of the seating portion, a third sealing portion is formed between at least a part of the other surface of the seating portion and at least one surface of the horizontal portion, and a fourth sealing portion can be formed between the edge portion and the second seating groove.

[0049] According to one embodiment, the sealing member may include a Teflon material.

[0050] According to one embodiment, the sealing member may include either a ring shape or a washer shape.

[0051] Meanwhile, although specific embodiments have been described in the detailed description of the present disclosure, it is understood that various modifications are possible within the scope of the present disclosure. Therefore, the scope of the present disclosure should not be limited to the described embodiments, but should be defined by the claims set forth below as well as equivalents thereof. Explanation of the symbols

[0053] 10 ; Sprinkler head 20 ; Fastening frame 30 ; Cover part 40 ; Heat sensor 61 ; Sealing member 62 ; Sealing seating member 63 ; Sealing spring cap

Claims

Claim 1 A sealing device for a sprinkler head is applied to a drain pipe filled with fire water, a fastening frame connected to the drain pipe, a cover portion disposed at the end of the fastening frame, and a sealing device disposed within the fastening frame to block the entry of fire water, wherein the sealing device is disposed between a first seating groove formed in the drain pipe and a second seating groove formed in a part of the cover portion, and the sealing device comprises a sealing seating member including a first protrusion in a central portion, a seating portion extending from the first protrusion, and a locking portion extending from the seating portion; and a sealing member having a single layer, wherein one surface is in close contact with the first seating groove and the other surface is in close contact with the seating portion. A sealing device comprising a sealing spring cap including a central second protrusion that is in close contact between the second seating groove and the sealing seating member and is inserted into the first protrusion, a horizontal portion extending from the second protrusion and in close contact with the seating member, and an edge portion extending from the horizontal portion and in close contact with the second seating groove, wherein: a first sealing portion is formed between one surface of the sealing member and the first seating groove, a second sealing portion is formed between the other surface of the sealing member and one surface of the seating portion, a third sealing portion is formed between at least a part of the other surface of the seating portion and at least one surface of the horizontal portion, and a fourth sealing portion is formed between the edge portion and the second seating groove, and the sealing member comprises a Teflon material. Claim 2 delete Claim 3 delete Claim 4 In claim 1, the sealing member is a sealing device comprising either a ring shape or a washer shape.

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