Drainage device for subfloor piping

Abstract

A drainage pipe device for underfloor piping is disclosed. The drainage pipe device for underfloor piping according to the present invention is a drainage pipe device for underfloor piping that collects and discharges sewage provided in a penetration hole of a floor concrete slab, and is characterized by comprising: a drain body installed to be embedded in the floor concrete slab and having a plurality of sewage inlets provided on its side; a sewage discharge part provided at least one to form a sewage discharge port for discharging sewage at the bottom of the drain body; and a foamed fire-resistant filler coupled to the sewage discharge part and capable of expanding to close the penetration hole when high-temperature heat is applied. According to the present invention, when the drain body and the sewage discharge part are installed embedded in the inner side of the floor concrete slab and the foamed fire-resistant filler is coupled to the sewage discharge part, the foamed fire-resistant filler expands due to heat generated during a fire, thereby closing the penetration hole of the floor concrete slab and blocking flames or smoke from spreading to upper and lower floor households through the penetration hole.

Description

Technology Field

[0001] The present invention relates to a drainage pipe device for underfloor piping that is installed in a concrete floor slab of a bathroom, laundry room, balcony, etc., to collect and discharge sewage. Background Technology

[0002] Generally, the interior space of a building is divided into multiple spaces by floors and walls, and penetration holes are formed in the building's framework, such as floors or walls, to allow various pipes or ducts to pass through. The penetration holes in the building framework are formed with a size larger than the width of the pipes or ducts, thereby enabling the pipes or ducts to pass through the penetration holes even if there are design errors during installation.

[0003] However, as penetration holes in the building frame are formed to be larger than the width of the pipes or ducts, gaps inevitably form between the building frame and the pipes or ducts during installation; these gaps become passageways for flames or smoke in the event of a fire, posing a problem of spreading fire-related damage.

[0004] To address this problem, it is currently legally mandatory to seal penetrations in building frames with fire-resistant materials to prevent the spread of fire in the event of a fire.

[0005] Currently, various products are being released as devices to seal penetrations in building frames for the installation of pipes or ducts. In addition, diverse research and development is being conducted to develop products that lower manufacturing costs and offer excellent installability. Prior art literature

[0006] Registered Patent Publication No. 1743932 (June 7, 2017) The problem to be solved

[0007] The present invention has been devised to solve the aforementioned conventional problems and aims to provide a drainage pipe device for underfloor piping that is easy to install, offers excellent convenience of use, and prevents flames and smoke from spreading to upper and lower floors in the event of a fire by incorporating an expandable fire-resistant filler. means of solving the problem

[0008] According to one aspect of the present invention, a drainage pipe device for an underfloor piping system is provided for collecting and discharging sewage by being provided in a penetration hole of a floor concrete slab, comprising: a drain body installed to be embedded in the floor concrete slab and having a plurality of sewage inlets provided on its side; a sewage discharge part provided at least one to form a sewage discharge port for discharging sewage at the bottom of the drain body; and a foamed fire-resistant filler coupled to the sewage discharge part and capable of expanding to close the penetration hole when high-temperature heat is applied.

[0009] The above sewage discharge section comprises: a first sewage discharge section formed in a ring shape to have an inner region communicating with the internal space of the drain body and inserted into the inner side of the connected drain pipe; and a second sewage discharge section formed in a ring shape to surround the first sewage discharge section in a circumferential direction so as to form a gap space between it and the first sewage discharge section and to surround the outer side of the connected drain pipe, and the foamed refractory filling material is formed in a ring shape and can be inserted into the gap space.

[0010] In order to prevent the foamed refractory filler from detaching from the spaced-apart space, a ring-shaped fixing block can be forcibly pressed into and fixed in the spaced-apart space.

[0011] The above fixed block may be formed such that its width gradually decreases from one end to the other in the thickness direction.

[0012] The first sewage discharge section has a first sewage discharge wall connected vertically to the bottom surface of the drain body, and the second sewage discharge section has a second sewage discharge wall parallel to the first sewage discharge wall, and the fixing block may have its inner and outer surfaces tapered at an angle to the first and second sewage discharge walls.

[0013] The first sewage discharge section has a first sewage discharge wall connected vertically to the bottom surface of the drain body, and the second sewage discharge section has a second sewage discharge wall parallel to the first sewage discharge wall. A plurality of recesses that are spaced apart and concavely recessed along the circumferential direction of the inner surface of the fixed block that can contact the first sewage discharge wall may be formed, or a plurality of recesses that are spaced apart and concavely recessed along the circumferential direction of the outer surface of the fixed block that can contact the second sewage discharge wall may be formed.

[0014] In order to prevent the foamed refractory filler from detaching from the spaced-apart space, a ring-shaped fixing block can be screw-coupled and fixed to the spaced-apart space.

[0015] The first sewage discharge section has a first sewage discharge wall connected vertically to the bottom surface of the drain body, and the second sewage discharge section has a second sewage discharge wall parallel to the first sewage discharge wall, and screw threads may be formed on the inner surface of the first sewage discharge wall and the fixing block capable of contacting the first sewage discharge wall, respectively, or screw threads may be formed on the outer surface of the second sewage discharge wall and the fixing block capable of contacting the second sewage discharge wall, respectively. Effects of the invention

[0016] According to the drain pipe device for underfloor piping of the present invention described above, when the drain body and the sewage discharge part are installed embedded inside the floor concrete slab, the foamed fire-resistant filler is combined with the sewage discharge part, and as the foamed fire-resistant filler expands due to the heat generated during a fire, it closes the penetration hole of the floor concrete slab, thereby blocking the spread of flames or smoke to upper and lower floor households through the penetration hole.

[0017] In addition, by inserting a foamed refractory filler into the sewage discharge port and connecting a fixing block to the sewage discharge port via forced insertion or screw connection to prevent the separation of the foamed refractory filler, installation can be made easier and convenience of use can be increased.

[0018] In addition, since multiple recesses are provided in the fixed block, the fixed block can be easily connected to and disconnected from the sewage discharge part, and the worker can easily correct the installation state of the foamed refractory filler and the fixed block by reinstalling the foamed refractory filler and the fixed block after easily connecting and disconnecting the fixed block. Brief explanation of the drawing

[0019] FIGS. 1 and 2 are drawings showing the state in which a drainage pipe device for underfloor piping is installed according to an embodiment of the present invention. FIG. 3 is a drawing showing the disassembled state of a part of FIG. 1, FIG. 4 is a drawing showing a modified example of a fixing block of a drainage pipe device for underfloor piping according to an embodiment of the present invention. FIG. 5 is a drawing showing the assembly and separation of a fixed block that has already been assembled based on FIG. 4. Figure 6 is a drawing showing a variation of Figure 3. Specific details for implementing the invention

[0020] Hereinafter, embodiments of the present invention will be described in more detail with reference to the attached drawings. However, the present invention is not limited to the embodiments disclosed below but may be implemented in various different forms; these embodiments are provided merely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention. Identical reference numerals in the drawings refer to identical elements.

[0021] A drainage pipe device for underfloor piping according to a preferred embodiment of the present invention is installed in a bathroom, laundry room, balcony, etc., and is not only structured to be easy to install and highly convenient to use, but also includes an additional structure that allows the installed state to be easily corrected, and is structured so that a path opened by fire heat can be shielded to prevent flames and smoke from rapidly spreading to upper and lower floor households through the drainage pipe device in the event of a fire.

[0022] The present invention will be described in detail below with reference to examples.

[0023] As illustrated in FIGS. 1 and 2, the drain pipe device (1000) for underfloor piping according to an embodiment of the present invention is provided in a penetration hole (20) of a floor concrete slab (10) such as a bathroom, laundry room, or balcony to collect and discharge sewage, and the drain pipe device (1000) for underfloor piping is installed to be embedded in the floor concrete slab (10) to form a penetration hole (20).

[0024] The drain pipe device for underfloor piping according to an embodiment of the present invention is configured to allow wastewater from a bathroom, laundry room, and balcony to be discharged into a riser pipe by being piped downward through the floor concrete slab (10), and in some cases, may also be directly connected to a sewer pipe through a drain pipe.

[0025] A drainage pipe device for an underfloor piping system according to an embodiment of the present invention includes a drain body (100), a sewage discharge section (200), and a foamed refractory filling material (300).

[0026] First, the drain body (100) is installed so as to be embedded in the floor concrete slab (10) of the bathroom, laundry room, and balcony, and a plurality of sewage inlets (110) are provided on the side so that sewage drained from various locations flows into the drain body.

[0027] For example, the drain body (100) is formed as a container structure with an open top, and a plurality of sewage inlets (110) may be formed spaced apart at equal or different intervals along the circumference of the container. A conventional upper frame, etc., is installed at the upper opening of the drain body (100).

[0028] A sewage discharge section (200) is provided in at least one manner to form a sewage outlet (210) for discharging sewage at the bottom of the drain body (100). This sewage discharge section (200) is also installed to be embedded within the floor concrete slab (10).

[0029] As illustrated in FIG. 1, one sewage discharge section (200) may be provided at the bottom of the drain body (100), and as another example, as illustrated in FIG. 2, two sewage discharge sections (200) may be provided, and if two are provided, their respective diameters may be different.

[0030] In the latter case, it may be installed on the balcony of a first-floor apartment unit, and in this case, one sewage discharge unit may be connected to a riser pipe on the PD (pipe duct) side through a drain pipe (220), and the other sewage discharge unit (200) may be connected to a sewer pipe through a drain pipe (220).

[0031] In an embodiment of the present invention, the sewage discharge unit (200) includes a first sewage discharge unit (230) and a second sewage discharge unit (240).

[0032] The first sewage discharge section (230) is formed in a ring shape to have an inner region communicating with the internal space of the drain body (100). The second sewage discharge section (240) is formed in a ring shape to surround the first sewage discharge section (230) in a circumferential direction so that a spaced-out space is formed between it and the first sewage discharge section (230).

[0033] The first sewage discharge section (230) is formed to be inserted into the inner side of the connected drain pipe (220). The second sewage discharge section (240) is formed to surround the outer side of the connected drain pipe (220).

[0034] The drain pipe (220) can be inserted and connected into the space between the first sewage discharge section (230) and the second sewage discharge section (240) and connected to a riser pipe or a sewer pipe.

[0035] Meanwhile, since the drain body (100) and the sewage discharge part (200) are both made of plastic material, when a fire occurs, flames or smoke may spread to the upper and lower floors through the open penetration hole (20) as the plastic melts due to the high temperature of the fire.

[0036] In order to prevent the rapid spread of such fire, the present invention provides a foamed refractory filling material (300) that expands and closes the penetration hole (20) when high-temperature heat is applied.

[0037] Here, the foamed refractory filling material (300) is combined with the sewage discharge section (200) and is made of a material capable of expanding by approximately 500 to 600% or more relative to its initial volume by high heat.

[0038] That is, the foamed fire-resistant filler (300) provided in the sewage discharge section (200) rapidly expands in response to fire heat and closes the penetration hole (20), thereby preventing the spread of fire to upper and lower floor households through the penetration hole (20) of the bathroom, laundry room, and balcony as much as possible.

[0039] In an embodiment of the present invention, the foamed refractory filler (300) is formed in a ring shape and can be inserted into the space between the first sewage discharge section (230) and the second sewage discharge section (240), and can foam expand in a direction that closes the penetration hole (20) as the sewage discharge section (200) melts due to fire heat.

[0040] In the first embodiment of the present invention, as shown in FIG. 1, a ring-shaped fixing block (400) is forcibly pressed into and fixed in the spaced space to prevent the foamed refractory filling material (300) from detaching from the spaced space. Therefore, it is possible to prevent the foamed refractory filling material (300) from detaching and separating from the drain body (100) during the movement and transportation process.

[0041] The worker can prevent the expansionable refractory filler (300) from separating by inserting the ring-shaped expansionable refractory filler (300) into the gap between the first sewage discharge section (230) and the second sewage discharge section (240), and then forcibly pressing and fixing the ring-shaped fixing block (400) into the gap.

[0042] Here, the drain body (100), the sewage discharge part (200), and the fixing block (400) are all made of a plastic synthetic resin material capable of elastic deformation of a certain amount or more, and as shown in FIG. 3, the fixing block (400) can be formed so that its width gradually decreases from one end to the other in the thickness direction.

[0043] Accordingly, the worker can easily insert the other end of the thickness direction of the fixed block (400) into the gap between the first sewage discharge section (230) and the second sewage discharge section (240), and then fix it by applying pressure toward the foamed refractory filling material (300) to force-insert it, thereby enabling rapid assembly work at the work site.

[0044] Specifically, as illustrated in FIGS. 1 and 3, the first sewage discharge section (230) has a first sewage discharge wall (231) connected vertically to the bottom surface of the drain body (100), and the second sewage discharge section (240) has a second sewage discharge wall (241) parallel to the first sewage discharge wall (231).

[0045] Here, as shown in FIG. 3, based on the state in which the fixed block (400) is inserted into the space between the first sewage discharge section (230) and the second sewage discharge section (240), the fixed block (400) is formed to be tapered so that both its inner surface and outer surface are inclined with respect to the first sewage discharge wall (231) and the second sewage discharge wall (241).

[0046] Meanwhile, the forced insertion of such a fixed block (400) can be performed manually by a worker or automatically by an assembly robot. However, in some cases, the foamed refractory filling material (300) may not be properly inserted, or the fixed block (400) may not be inserted in a parallel state with respect to the drain body (100), resulting in a defective connection.

[0047] In this case, a situation may arise where the forcibly pressed fixed block (400) must be separated from the drain body (100) and then reassembled, but the process of removing the forcibly pressed fixed block may not be easy.

[0048] To supplement this, in an embodiment of the present invention, as shown in FIG. 4, a plurality of recessed portions (410) that are spaced apart and concavely recessed along the circumferential direction of the inner surface of a fixed block (400) that can contact the first sewage discharge wall (231) may be formed.

[0049] Alternatively, a plurality of recessed portions (410) that are spaced apart and concavely recessed along the circumferential direction of the outer surface of a fixed block (400) that can contact the second sewage discharge wall (241) may be formed.

[0050] Here, the recess (410) is formed continuously along the entire thickness direction of the fixed block (400). That is, when the fixed block (400) is forcibly pressed in, the space where the foamed refractory filling material (300) is placed and the space outside thereof are connected to each other through the recess (410).

[0051] Accordingly, the worker can separate the multiple recesses (410) by grasping them with their fingers and pulling them, and in addition, as shown in FIG. 5, the worker can separate them by inserting a long hook through the recesses (410) and its end into the space where the foamed refractory filling material (300) is placed, so that it is caught on one side of the fixing block (400), and then pulling the hook.

[0052] Therefore, the worker can easily correct the installation state of the foamed refractory filler and the fixed block by easily combining and separating the fixed block (400) and then reinstalling the foamed refractory filler (300) and the fixed block (400).

[0053] In the second embodiment of the present invention, as shown in FIG. 6, a ring-shaped fixing block (400) is screw-coupled and fixed to the spaced space to prevent the foamed refractory filling material (300) from detaching from the spaced space. Accordingly, it is possible to prevent the foamed refractory filling material (300) from detaching and separating from the drain body (100) during movement and transportation, and to maintain a more robust connection state with the drain body than the aforementioned forced insertion.

[0054] Specifically, screw threads may be formed on the inner surface of the first sewage discharge wall (231) and the fixing block (400) that can contact the first sewage discharge wall (231), respectively.

[0055] Alternatively, screw threads may be formed on the outer surface of the second sewage discharge wall (241) and the fixing block (400) that can contact the second sewage discharge wall (241), respectively.

[0056] Alternatively, screw threads may be formed on the inner and outer surfaces of the first sewage discharge wall (231) and the second sewage discharge wall (241), and the fixing block (400) that can contact them, respectively.

[0057] Meanwhile, in an embodiment of the present invention, the fixing block (400) may be omitted depending on the case. In this case, protrusions may be formed on the inner surfaces facing each other of the first sewage discharge wall (231) and the second sewage discharge wall (241) so as to protrude in a direction facing each other. The lower end of the foamed refractory filling material (300) may be caught by these protrusions, thereby preventing the foamed refractory filling material from falling to the lower part of the sewage discharge section (200) and being separated.

[0058] The above-mentioned protrusions are formed integrally with the sewage discharge section (200) through injection molding, and even if the protrusions protrude to a height greater than a certain level, the foamed refractory filling material (300) is made of a material capable of elastic deformation greater than a certain level, so they can be easily inserted into the gap between the first sewage discharge section (230) and the second sewage discharge section (240).

[0059] Although the present invention has been illustrated and described above in relation to preferred embodiments for illustrating the principles of the invention, the invention is not limited to the configuration and operation as illustrated and described. Rather, those skilled in the art will understand that numerous changes and modifications to the invention are possible without departing from the spirit and scope of the appended claims. Explanation of the symbols

[0060] 10: Floor concrete slab 20: Penetration 1000: Drain pipe device for underfloor piping 100: Drain body 200: Sewage Discharge Section 230: 1st Sewage Discharge Section 240: Second sewage discharge section 300: Foamed refractory filler 400: Fixed block 410: Depression

Claims

Claim 1 A drainage pipe device for underfloor piping, wherein a drain pipe is connected to the lower side to collect and discharge sewage provided in a penetration hole of a floor concrete slab, comprising: a drain body installed to be embedded in the floor concrete slab and having a plurality of sewage inlets provided on its side; a sewage discharge part provided at least one to form a sewage discharge port for discharging sewage at the lower part of the drain body and installed to be embedded in the floor concrete slab; and a foamed refractory filler coupled to the sewage discharge part and capable of expanding to close the penetration hole when high-temperature heat is applied, wherein the sewage discharge part is formed in a ring shape to have an inner region communicating with the internal space of the drain body and is inserted into the inner side of a coupled drain pipe.and includes a second sewage discharge section formed in a ring shape to surround the first sewage discharge section in a circumferential direction so as to form a gap space between it and the first sewage discharge section, and formed to surround the outside of the connected drain pipe; the foamed refractory filler is formed in a ring shape and inserted into the gap space; a ring-shaped fixing block is self-pressed and fixed into the gap space to prevent the foamed refractory filler from detaching from the gap space; the upper end of the drain pipe is directly inserted into the gap space without using a separate connector, and the entire foamed refractory filler, the entire fixing block, and the upper end of the drain pipe are all inserted into the gap space; the first sewage discharge section has a first sewage discharge wall connected vertically to the bottom surface of the drain body, and the second sewage discharge section has a second sewage discharge wall parallel to the first sewage discharge wall; and the inner surface of the fixing block capable of contacting the first sewage discharge wall A drainage pipe device for an underfloor piping system characterized by having a plurality of recesses formed that are spaced apart and concave along the circumferential direction, or having a plurality of recesses formed that are spaced apart and concave along the circumferential direction of the outer surface of the fixing block capable of contacting the second sewage discharge wall. Claim 2 delete Claim 3 delete Claim 4 A drainage pipe device for underfloor piping according to claim 1, characterized in that the fixed block is formed such that its width gradually decreases from one end to the other in the thickness direction. Claim 5 A drainage pipe device for an underfloor piping system according to claim 4, wherein the first sewage discharge section has a first sewage discharge wall connected vertically to the bottom surface of the drain body, the second sewage discharge section has a second sewage discharge wall parallel to the first sewage discharge wall, and the fixing block is characterized in that its inner and outer surfaces are tapered at an angle to the first and second sewage discharge walls. Claim 6 delete Claim 7 A drainage pipe device for an underfloor piping system according to claim 1, characterized in that a ring-shaped fixing block is screw-coupled and fixed to the spaced space to prevent the foamed refractory filling material from escaping from the spaced space. Claim 8 A drainage pipe device for an underfloor piping system according to claim 7, wherein the first sewage discharge section has a first sewage discharge wall connected vertically to the bottom surface of the drain body, and the second sewage discharge section has a second sewage discharge wall parallel to the first sewage discharge wall, and wherein a screw thread is formed on the inner surface of the first sewage discharge wall and the fixing block capable of contacting the first sewage discharge wall, or wherein a screw thread is formed on the outer surface of the second sewage discharge wall and the fixing block capable of contacting the second sewage discharge wall.

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