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WO2015034124A1 - Clapet d'aération pour canalisation d'eaux usées - Google Patents

Clapet d'aération pour canalisation d'eaux usées Download PDF

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Publication number
WO2015034124A1
WO2015034124A1 PCT/KR2013/008311 KR2013008311W WO2015034124A1 WO 2015034124 A1 WO2015034124 A1 WO 2015034124A1 KR 2013008311 W KR2013008311 W KR 2013008311W WO 2015034124 A1 WO2015034124 A1 WO 2015034124A1
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WO
WIPO (PCT)
Prior art keywords
vent
air
seat
waste water
water pipe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2013/008311
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English (en)
Korean (ko)
Inventor
김수미
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AAVWIN Co Ltd
Original Assignee
AAVWIN Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by AAVWIN Co Ltd filed Critical AAVWIN Co Ltd
Publication of WO2015034124A1 publication Critical patent/WO2015034124A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
    • E03C1/122—Pipe-line systems for waste water in building
    • E03C1/1222—Arrangements of devices in domestic waste water pipe-line systems
    • E03C1/1225—Arrangements of devices in domestic waste water pipe-line systems of air admittance valves
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
    • E03C1/28—Odour seals
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
    • E03C1/30—Devices to facilitate removing of obstructions in waste-pipes or sinks

Definitions

  • the present invention relates to an air vent for a wastewater pipe, and more specifically, to increase and decrease according to the pressure state inside the wastewater pipe, and to open or close the vent outer passage to introduce external air into the wastewater pipe or to prevent external leakage of the wastewater.
  • the air seat is provided, the hollow portion of the air seat guided by the elevating guide is guided so that it can be lifted and lowered smoothly in the process of lifting and lowering, but does not impair the flexibility of the air seat and has a certain rigidity so as to have excellent sealing property.
  • the present invention relates to an air vent for wastewater piping including a guide frame ring provided around a hollow part of an air seat.
  • the air should be guaranteed to be normal and continuous. If a part of the drainage pipe prevents the inflow of external air, the drainage function of the generated area will be reduced, and the function of the surrounding drainage pipe will also be reduced. Will be.
  • An air vent, or vent pipe is an air pipe that makes water and air flow like a natural state so that water goes down unabated after using sanitary devices such as toilets and sinks.
  • the air vent system for the wastewater pipe has a wastewater line (SWP), a ventilation pipe line (VTVP) for ventilating the drainage line (WWP), and an annular for venting each sanitary appliance.
  • Ventilation line (VTCP), the sewage line (SWP) and drainage line (WWP) is coupled from the upper through the roof slab (FT) there is a gooseneck type new orthogonal pipe (VTT) through which the outside communicates with air It is configured to supply air to protect the trap's seals from siphoning and back pressure, improve the flow of wastewater, and prevent backflow.
  • VTT gooseneck type new orthogonal pipe
  • the purpose of the aeration is to summarize the first to protect the seals of the trap from the siphoning and back pressure, to facilitate the flow in the second drain, and to keep the pipe clean by circulating fresh air in the drain to facilitate the ventilation of the drain system. .
  • Pipes or systems thereof installed for this purpose are referred to as venting or venting systems.
  • the main role of the double vent is to protect the seal of the trap.
  • the piping method of the vent pipe is the first single pipe system, which uses the upper vertical pipe at the connection point of the uppermost equipment drain pipe as the vent pipe. This method is used when the number of instruments is small in small buildings of two or three stories.
  • This part of the vent is called a new vent or drain.
  • the second method is the double pipe system, which is used to pipe the drain pipe and the vent pipe separately.
  • the two-pipe piping method there are ventilation, circuit, and annular ventilation, respectively, depending on the connection method of the ventilation pipe.
  • each sanitary instrument trap can serve its original purpose and is the ideal way to complete drainage. It is not used so much because of disadvantages of construction cost.
  • Each vent type is also referred to as a back vent pipe because it is placed in a wall behind the appliance, in a plumbing fixture behind it, or in a drain pipe below the floor.
  • Circuit vent type (circuit vent type) is also referred to as loop vent type by connecting one vent pipe to two or more appliances and connecting it to the vent vertical pipe as in the first, second and fourth floor.
  • the number of vented vents is 8 or less, and the distance between the vertical vent and the farthest vent is within 7.5m. In this way, the drainage horizontal pipe is also called wet vent because it serves as vent.
  • a evacuation vent is installed just below the mechanism of the drainage horizontal branch pipe and the drain pipe junction.
  • the diameter should be at least 1/2 of the drain pipe and at least 32mm.
  • a circuit vent pipe is connected to the upstream pipe of the upstream instrument drain pipe immediately after the point where the uppermost instrument drain pipe is connected to the drainage lateral pipe to collectively vent two balloon traps.
  • the connection to the vent pipe is called an annular vent pipe, which is called a loop vent pipe.
  • the sewtia drainage system was developed in France around 1967 and consists of a sextia bend that is installed in the sextia fitting and the drainage horizontal main line at the junction of the drain vertical pipe and the horizontal branch pipe of each layer.
  • This method is a sextia fitting that creates a turning hole in the drainage stream of the horizontal branch pipe to create a vent hole, and a sexia canopy creates a turning force in the stream of drainage that descends from the vertical pipe to sustain the air hole.
  • the solvent drainage system was developed in 1961 by Swiss Fritz Sommer, with air mixing fittings in the drain vertical pipes of each layer and air separation fittings in the foundation of the drain horizontal branch pipes and drain vertical pipes. Consists of.
  • the air mixing fitting acts to suppress drainage and air in the vertical pipe and to mix the drainage and air coming from the drainage horizontal branch pipe in the vertical pipe, and the air separation fitting allows the drainage to easily enter the drainage horizontal main pipe. It acts to separate air and water, keeping the air core continuously inside the drain vertical pipe.
  • Ventilation by the ventilation system described above has a lot of material and labor costs, and the top of the vent pipe should be removed to prevent the odor from being exhausted into the room.
  • Republic of Korea Patent No. 10-1009474 (Registration Date: 2011.01.12.) Has been proposed a "5 times aeration vent”.
  • Republic of Korea Patent No. 10-1009474 has a problem that the air seat is separated or folded from the central axis and the even distribution of the air inflow is not balanced in the waste water vent vent.
  • the Republic of Korea Patent No. 10-1070808 has been configured so that the support stand is installed on the upper portion of the air seat to facilitate the lifting and lowering without folding the air seat, but the support stand supports the air seat as a whole, thereby reducing the airtightness of the air seat is reduced There was a problem.
  • the object of the present invention is to increase and decrease according to the pressure state inside the waste water pipe and to open the vent outside the passage by introducing external air into the waste water pipe or It is equipped with an air seat to prevent external leakage of wastewater, and guides the hollow of the air seat guided by the elevating guide so that it can be raised and lowered smoothly without being folded in the process of raising and lowering, but does not impair the flexibility of the air seat.
  • An object of the present invention is to provide an air vent for a wastewater pipe including a guide frame ring formed around a hollow part of an air seat in a material having a certain rigidity to have a sealing property.
  • an air vent for a waste water pipe in the waste water pipe air vent for communicating air to the inside of the waste water pipe, a lower end is connected to the waste water pipe, the inside and the waste water pipe in the center
  • a vent main body having a vent inner passage communicating with the upper and lower vents, and having a vent outer passage through which the outside air flows outside the upper end portion
  • An upper cap fastened to an upper end of the vent body in a state where an inner space through which the vent outer passage and the vent inner passage communicate with each other is formed;
  • a hollow part is formed in the center and communicates with the vent inner passage and is provided to be able to move up and down in the upper part of the vent body in the inner space of the upper cap.
  • An air seat A lifting guide inserted into the hollow of the air seat to guide the lifting of the air seat in the inner space of the upper cap;
  • the air sheet is made of a material having elasticity and flexibility, made of a material having a predetermined rigidity so that the shape of the hollow portion of the air sheet is maintained near the circumferential portion of the air sheet coupled to the air seat Guide framing; It further comprises.
  • the air vent for the waste water pipe according to the present invention, the upper surface of the vent outer passage in contact with the air seat so that the airtight is maintained between the air seat and the upper surface of the vent outer passage when the air seat is lowered Packing member coupled to; It further comprises.
  • the air vent for the waste water pipe is configured to be stacked on top of the first air seat, the hardness of the first air seat It is characterized in that the hardness of the second air sheet is configured larger.
  • the air vent for the waste water pipe according to the present invention, the vent body, a hollow cylindrical central body in which the vent inner passage is formed inside, and the outer surface of the upper end of the central body so that the vent outer passage is formed constant And an air inflow compartment arranged at intervals and having a seat seating surface on which the air seat is seated, wherein the seat seating surface is concavely formed along the circumferential direction, and the air seat is provided at a lower portion. It characterized in that the surface is formed convexly downward in the circumferential direction in a shape corresponding to the seat seating surface.
  • the air seat is formed in the shape of a circular band having the hollow portion in the center, the vent body is a hollow cylindrical central body with the vent inner passage formed therein;
  • the air inlet compartment may include an air inlet compartment having a seat seating surface on which the air seat is seated at a predetermined interval to surround the outer side of the upper end of the central body so that the vent outer passage is formed.
  • the air inlet compartment adjacent to the central body is characterized in that it further comprises at least one annular sealed compartment which is isolated from the vent outer passage and forms a concentric circle with the central body.
  • the adapter further includes a single pipe connection part connected to the wastewater pipe, and a plurality of body connection parts branched from the pipe connection part and connected to the plurality of vent bodies, respectively.
  • the air vent for the waste water pipe according to the present invention, the pipe connecting portion, characterized in that formed in multiple stages to enable the connection of the waste water pipe having a different diameter.
  • the air vent for the waste water pipe according to the present invention by the configuration as described above has the advantage of having excellent sealing properties while smoothly lifting up and down without folding in the process of lifting up and down the hollow portion of the air seat.
  • FIG. 1 is an exploded perspective view of an air vent for wastewater pipe according to a first embodiment of the present invention
  • Figure 2 is a perspective view of the vent body according to the first embodiment of the present invention
  • Figure 3 is an exploded cross-sectional view of the air vent for the waste water pipe according to the first embodiment of the present invention
  • FIGS. 4 and 5 are cross-sectional views showing the use of the air vent for the waste water pipe according to the first embodiment of the present invention
  • FIG. 6 is a cross-sectional view showing a connection state of the adapter according to the first embodiment of the present invention.
  • FIG. 8 is a cross-sectional view of the air vent for the waste water pipe according to the third embodiment of the present invention
  • FIG. 9 is a cross-sectional view of the air vent for the waste water pipe according to the fourth embodiment of the present invention.
  • FIG. 1 is an exploded perspective view of an air vent for the wastewater pipe according to the first embodiment of the present invention
  • Figure 2 is a perspective view of the vent body according to the first embodiment of the present invention
  • Figure 3 is a first embodiment of the present invention 4 and 5 are cross-sectional views showing a state of use of the waste water pipe air vent according to the first embodiment of the present invention
  • Figure 6 is a first embodiment of the present invention A cross-sectional view showing the connection of the adapter according to the example.
  • the air vent 1 for the wastewater pipe according to the first embodiment of the present invention is opened when a negative pressure is formed inside the wastewater pipe P, and the wastewater pipe P is formed.
  • positive pressure positive pressure
  • the waste water pipe (P) is a configuration to prevent the external leakage of the waste water, the vent body 10, the upper cap 20,
  • the air seat 30, the lifting guide 40, the guide frame ring 50, the packing member 60, and the adapter 70 are configured to be included.
  • the vent body 10 has a lower end connected to the wastewater pipe P, a vent inner passage 111 communicating with the wastewater pipe P at an inner center thereof is formed through the upper and lower sides of the vent body 10, and the outside air flows into the outside of the upper end.
  • the vent outer passage 121 may be formed, in the first embodiment of the present invention, the lower end portion is configured to be connected to the wastewater pipe P through the adapter 70, and the central body 11 is formed. And an air inflow compartment 12.
  • the central body 11 is formed in a hollow cylindrical shape is formed inside the vent inner passage 111, when the positive pressure is formed inside the waste water drain pipe (P) foreign matter through the vent inner passage 111 There is provided a foreign matter prevention net 112 of the funnel type to prevent the flow in the upper cap 20 direction.
  • the air inlet compartment 12 is configured such that the vent outer passage 121 through which the outside air can flow into the vent main body 10 is formed.
  • the air inlet compartment 12 has a predetermined interval around the upper end outer surface of the central body 11. Is disposed, the seat seating surface 122 is formed on the upper surface seating the air seat 30.
  • a plurality of air inlet pins 123 are formed to prevent foreign substances from flowing in from the outside when the outside air is introduced and to reinforce the strength.
  • the upper cap 20 is configured to be fastened to the upper end of the vent body 10 in a state in which an inner space 21 through which the vent outer passage 121 and the vent inner passage 111 communicate with each other is formed. .
  • vent outer passage 121 and the vent inner passage 111 are configured to communicate with each other via the inner space 21 of the upper cap 20. 30) and the elevating guide 40 is accommodated.
  • the air seat 30 is formed in a circular band shape is formed in the center of the hollow portion 31 is in communication with the vent inner passage 111 and the vent body (in the inner space 21 of the upper cap 20) 10) is guided by the elevating guide 40 on the upper portion of the configuration to be raised and lowered, in the first embodiment of the present invention is made of a material having elasticity and flexibility, such as silicone rubber to have excellent sealing properties.
  • the air seat 30 is made of a silicon rubber-containing material, the oil is finely ejected from the surface of the air seat 30 so that the air seat 30 is the seat of the vent body 10. It will be prevented from sticking to the seating surface 122, the lifting and lowering will also be able to operate more smoothly.
  • the guide frame ring 50 for maintaining the shape is coupled to the hollow portion 31 of the air seat 30.
  • FIG 4 and 5 illustrate an operating state of the air seat 30 according to the first embodiment of the present invention.
  • the air seat 30 when a positive pressure is formed inside the wastewater pipe P, the air seat 30 is lowered by an internal pressure, and the air inlet compartment is an upper surface of the vent outer passage 121. It is configured to be seated on the seat seating surface 122 of (12) to seal the vent outer passage 121.
  • the elevating guide 40 is inserted into the hollow portion 31 of the air seat 30 to guide the elevating of the air seat 30 in the inner space 21 of the upper cap 20. .
  • the elevating guide 40 is a circumferential direction on the inner lower surface of the upper cap 20 to induce the flow of air in the inner space 21 of the upper cap 20 It consists of a plurality of guide pins 41 installed at regular intervals along the.
  • An inner circumferential surface of the hollow part 31 of the air seat 30 is in contact with the outer surface of the guide pin 41 and slides, and the air seat 30 is raised and lowered.
  • the guide frame ring 50 is made of a material having a predetermined rigidity, such as plastic, is configured to be coupled to the air seat 30 by circumferentially the hollow portion 31 of the air seat 30.
  • the guide frame ring 50 may be coupled to the inner circumferential surface of the hollow part 31 of the air seat 30 by a fitting coupling method of the protrusion and the groove.
  • the air seat 30 Due to the configuration of the guide frame ring 50, the air seat 30 is maintained in a shape near the hollow part 31 and the outer surface of the guide pin 41 in the process of the air seat 30 is raised and lowered It is possible to prevent the folding by the friction of the air seat 30 is also made to move up and down smoothly.
  • the packing member 60 is configured to be coupled to an upper surface of the vent outer passage 121 contacting the air seat 30, that is, the seat seating surface 122 of the air inflow compartment 12.
  • the member 60 is made of a material such as rubber or silicon, and when the air seat 30 is lowered, airtightness is maintained between the air seat 30 and the upper surface of the vent outer passage 121 so that the vent outer passage is closed.
  • the 121 can be sealed more reliably.
  • the packing member 60 may be mutually coupled to each other by the fitting coupling method of the protrusion and the groove to the seat seating surface 122 as shown in the enlarged view of FIG.
  • the adapter 70 is configured to connect the vent main body 10 and the waste water pipe P to each other.
  • the adapter 70 has one waste water as shown in FIG. 6.
  • a single pipe connection portion 71 connected to the waste water pipe P and a plurality of the vent bodies 10 branched from the pipe connection portion 71 so that a plurality of vent bodies 10 may be connected to the pipe P.
  • a plurality of main body connection parts 72 and 72 'to which 10 and 10' are connected are formed.
  • the pipe connection portion 71 is formed of a plurality of stages (711, 712) is configured to enable the connection of the waste water pipe (P, P ') having a different diameter.
  • FIG. 7 is a cross-sectional view of the air vent for the waste water pipe according to the second embodiment of the present invention.
  • the air vent for the waste water pipe is the vent body 10, the upper cap 20, the air seat 30, the elevating guide 40, the guide Frame ring 50 and the packing member 60 is configured to include.
  • the air seat 30 includes a first air seat 31 and a second air seat 32 stacked on top of the first air seat 31.
  • the hardness of the second air sheet 32 is greater than that of the first air sheet 31.
  • the first air seat 31 is configured to be more flexible than the second air seat 32 so that the first air seat 31 can be smoothly in close contact with the upper surface of the vent outer passage 121.
  • the second air sheet 32 having a relatively high hardness is in close contact with the upper portion of the first air sheet 31 to prevent the first air sheet 31 from being folded.
  • FIG. 8 is a cross-sectional view of the air vent for the waste water pipe according to the third embodiment of the present invention.
  • the air vent for the waste water pipe is the vent body 10, the upper cap 20, the air seat 30, the elevating guide 40, the guide It is configured to include a frame ring (50).
  • the elevating guide 40 and the guide frame ring 50 is the same as the first embodiment of the present invention below the present invention in the vent body 10 and the air seat 30 Only parts different from those of the first embodiment will be described.
  • the vent body 10 has a predetermined interval around the outer surface of the upper end of the central body 11 to form a hollow cylindrical central body 11 having a vent inner passage 111 therein and an vent outer passage 121 therein. And an air inflow compartment 12 having a seat seating surface 122 on which the air seat 30 is seated on an upper surface thereof, in the third embodiment of the present invention. ) Is formed concavely recessed along the circumferential direction.
  • the air seat 30 has a lower surface convex in a downward direction along the circumferential direction in a shape corresponding to the seat seating surface 122.
  • the seat seating surface 122 and the air seat 30 as described above it is possible to increase the weight of the air seat 30 itself than in the first embodiment of the present invention the seat seating surface 122 It is possible to expect more sure airtight between the air seat 30 and.
  • FIG. 9 is a cross-sectional view of the air vent for the waste water pipe according to the fourth embodiment of the present invention.
  • the air vent for the waste water pipe according to the fourth embodiment of the present invention is the vent body 10, the upper cap 20, the air seat 30, the elevating guide 40, the guide Frame ring 50 and the packing member 60 is configured to include.
  • the vent body 10 has a hollow cylindrical central body 11 and a vent outer passage 121 in which a vent inner passage 111 is formed, similarly to the first and third embodiments of the present invention.
  • the air inlet compartment 12 is disposed around the outer surface of the upper end of the central body 11 at regular intervals and has a seat seating surface 122 on which the air seat 30 is seated.
  • the vent main body 10 is isolated from the vent outer passage 121 in the air inlet compartment 12 adjacent to the central body 11 and is concentric with the central body 11. It further comprises at least one annular sealed compartment 124 to form.
  • the seat seating surface between the boundary of the central body 11 and the air inlet compartment 12 in the process of the air is communicated with the air seat 30 is raised and lowered according to the pressure inside the waste water drainage pipe (P) (
  • the foreign matter (M) is caught in the 122a), the foreign matter (M) is not properly seated on the seat seating surface (122a) by the foreign matter (M) is formed in the gap that the waste water is leaked to the outside by the gap.
  • the vent outer passage 121 is multiplied. Since the air vent for the wastewater pipe according to the fourth embodiment of the present invention can be sealed, it is possible to maintain a more reliable airtight to prevent the external leakage of the wastewater.
  • the present invention having the same configuration as described above is an industrially useful invention that can have an excellent sealing property while being smoothly raised and lowered without being folded in the process of raising and lowering the air vent.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Sink And Installation For Waste Water (AREA)

Abstract

La présente invention concerne un clapet d'aération pour une canalisation d'eaux usées et, plus particulièrement, un clapet d'aération pour une canalisation d'eaux usées comprenant : une membrane qui se déplace vers le haut/vers le bas en fonction d'un état de pression à l'intérieur de la canalisation d'eaux usées, de manière à ouvrir/fermer un passage extérieur de clapet d'aération, de telle sorte que l'air extérieur pénètre dans la canalisation d'eaux usées ou que la fuite des eaux usées vers l'extérieur est évitée ; et un anneau de cadre de guidage disposé autour d'une circonférence pleine d'une partie creuse de la membrane et fait d'un matériau présentant un degré de rigidité prédéterminé de telle sorte que lors du déplacement vers le haut/vers le bas de la partie creuse de la membrane qui est guidée par un guide de déplacement ascendant, la partie creuse est guidée de façon à se déplacer en douceur vers le haut/vers le bas sans être pliée, tandis que la flexibilité de la membrane n'est pas compromise de façon à assurer une excellente propriété d'étanchéité.
PCT/KR2013/008311 2013-09-04 2013-09-13 Clapet d'aération pour canalisation d'eaux usées Ceased WO2015034124A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2013-0106318 2013-09-04
KR20130106318A KR101472968B1 (ko) 2013-09-04 2013-09-04 오배수 배관용 에어벤트

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Publication Number Publication Date
WO2015034124A1 true WO2015034124A1 (fr) 2015-03-12

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WO (1) WO2015034124A1 (fr)

Families Citing this family (4)

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Publication number Priority date Publication date Assignee Title
KR102319339B1 (ko) * 2021-01-25 2021-10-29 주식회사 에스엠지 통기 벤트
KR20230001982U (ko) 2022-04-08 2023-10-17 (주)투엔티원 건축물의 오배수관용 와류형 통기밸브
KR102356646B1 (ko) 2021-06-15 2022-02-08 주식회사 투엔티원 건축물의 오배수관용 통기밸브
KR102807054B1 (ko) * 2023-07-06 2025-05-12 이기화 양변기용 일체형 배수 플랜지

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001262655A (ja) * 2000-03-21 2001-09-26 Kitz Corp 排水用通気装置
JP2003206560A (ja) * 2002-01-09 2003-07-25 Kakudai:Kk 吸気弁付き排水トラップ
WO2010015915A1 (fr) * 2008-08-08 2010-02-11 Studor S.A. Soupape d'admission d'air
KR101009474B1 (ko) * 2010-09-06 2011-01-19 (주) 스튜더 오배수 통기밴트
KR101070808B1 (ko) * 2011-04-26 2011-10-07 주식회사 에브윈 오배수 통기밴트

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101075425B1 (ko) 2010-02-25 2011-10-24 (주) 에이에이브이 오배수 통기밴트

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001262655A (ja) * 2000-03-21 2001-09-26 Kitz Corp 排水用通気装置
JP2003206560A (ja) * 2002-01-09 2003-07-25 Kakudai:Kk 吸気弁付き排水トラップ
WO2010015915A1 (fr) * 2008-08-08 2010-02-11 Studor S.A. Soupape d'admission d'air
KR101009474B1 (ko) * 2010-09-06 2011-01-19 (주) 스튜더 오배수 통기밴트
KR101070808B1 (ko) * 2011-04-26 2011-10-07 주식회사 에브윈 오배수 통기밴트

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