KR20170068250A - A Vent Valve Assembly for Drain Pipe of Sanitary Installations - Google Patents

A Vent Valve Assembly for Drain Pipe of Sanitary Installations Download PDF

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Publication number
KR20170068250A
KR20170068250A KR1020150175216A KR20150175216A KR20170068250A KR 20170068250 A KR20170068250 A KR 20170068250A KR 1020150175216 A KR1020150175216 A KR 1020150175216A KR 20150175216 A KR20150175216 A KR 20150175216A KR 20170068250 A KR20170068250 A KR 20170068250A
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KR
South Korea
Prior art keywords
valve
drain pipe
opening
valve housing
closing means
Prior art date
Application number
KR1020150175216A
Other languages
Korean (ko)
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KR101798610B1 (en
Inventor
강한표
Original Assignee
강한표
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Publication date
Application filed by 강한표 filed Critical 강한표
Priority to KR1020150175216A priority Critical patent/KR101798610B1/en
Publication of KR20170068250A publication Critical patent/KR20170068250A/en
Application granted granted Critical
Publication of KR101798610B1 publication Critical patent/KR101798610B1/en

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    • 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
    • E03C1/298—Odour seals consisting only of non-return valve
    • 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
    • E03C1/281—Odour seals using other sealants than water
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • E03F5/042—Arrangements of means against overflow of water, backing-up from the drain
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/14—Check valves with flexible valve members

Abstract

The present invention relates to an air vent valve for a drain pipe of a sanitary facility and includes at least one path from the ambient atmosphere into the drain pipe so that outside air can flow into the drain pipe in response to a pressure drop in the drain pipe A vertical tubular member extending downward from the valve housing and positioned to be connected to the drain pipe; a lid positioned at an upper end of the valve housing and having an inner space; a valve member housed in the inner space of the valve housing, The negative pressure (-) is released, and when the negative pressure (-) is released, it is restored by the self-elastic force to close the path, so that the pressure in the drain pipe is maintained at atmospheric pressure A valve connected to the drain pipe of the sanitary facility, There is an effect that the degree of Bongsu drain trap in the valve As done reliably prevent the communication between the air and the ambient air contained in the waste water or sewage system to enhance the sealing reliability.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a vent valve assembly for a drain pipe of a sanitary facility,

The present invention relates to a vent valve assembly for a drain pipe of a sanitary installation, and more particularly to a vent valve for a drain pipe of a sanitary facility, To a vent valve assembly for a drain pipe of a sanitary facility which can improve the sealing reliability by preventing the communication between the atmosphere.

In general, it is very important to seal the trap in the sanitary facility to prevent the intense smell in the drain pipe from being transferred to the room, and it is preferable that the inside of the drain pipe always maintains the atmospheric pressure and drains Do.

However, when the water is drained, the air in the drain pipe is compressed or expanded, and the pressure in the pipe is changed to the positive pressure (+) and the negative pressure (-). When the fluctuation width exceeds the height of the stick, It is necessary to open the drain pipe to the atmosphere so as to allow the air to escape or replenish when the pressure fluctuates, so that the pressure in the drain pipe is maintained at atmospheric pressure.

The vent valve is provided to connect the inside of the drain pipe with the outside air to reduce the pressure fluctuation width in the drain pipe to protect the trapping of the trap. The vent valve is sucked due to a sudden pressure drop in the drain pipe system And has a structure that automatically opens and closes to receive outside air into a drainage piping system to prevent siphonage or back pressure subsequent to closure of the air path by water overflow.

However, a disadvantage of the conventional ventilation valves is that the sealing ability of the opening and closing means for opening and closing the valve is not accurate. For example, the opening / closing means for opening and closing the valve may include a substantially rigid or fixed sealing ring (O-type ring), and if the flatness is changed due to the deformation of heat or material, small deviation may occur, So that the valve can not be correctly sealed when the opening / closing means is moved out of position or tilted.

This results in the leakage of polluted air and inversions from the sewage system into the surrounding atmosphere, and a solution to this is required.

Korean Patent Laid-Open No. 10-2012-0026031.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a vent valve assembly for a piping of a sanitary installation which is simple in construction and easy to manufacture and can improve the sealing reliability of the vent valve.

In order to achieve the object of the present invention as described above, in the present invention, at least one path from the ambient atmosphere into the drain pipe is provided so that the outside air can be introduced into the drain pipe in response to a pressure drop in the drain pipe A vertical tubular member extending downward from the valve housing and positioned to be connected to the drain pipe; a lid positioned at an upper end of the valve housing and having an inner space; a valve member housed in the inner space of the valve housing, The negative pressure (-) is released, and when the negative pressure (-) is released, it is restored by the self-elastic force to close the path, so that the pressure in the drain pipe is maintained at atmospheric pressure A vent valve for a drain pipe of a sanitary facility including a valve opening / Body is provided.

A plurality of valve openings may be formed in the valve housing to form the path.

In this case, the valve opening may include a first opening formed to surround the outer circumference of the valve housing to allow the outside air to flow, and a valve seating portion of the valve housing to transmit the outside air introduced through the first opening to the drain pipe. As shown in FIG.

In the present invention, the valve opening / closing means may be inserted into an internal space formed at a lower portion of the valve seating portion where the second opening is formed.

And the valve opening / closing means is made of a soft material having a self-elastic force.

Specifically, the valve opening / closing means includes a fitting portion inserted in a fixing hole formed at the center of the valve seating portion to hold the valve opening / closing means in position, and an edge extending in a disk shape below the fitting portion, A wing portion formed up to the sealing position, and a restoration portion extending downward at the center of the wing portion and having an inverted conical shape.

The wing portion may include an upper surface contacting the atmospheric pressure and a lower surface contacting the internal space pressure of the drain pipe.

Here, the upper and lower surfaces of the wing portion may have a shape extending upward along a circular curve having a predetermined radius of curvature (R1, R2), and the thickness may gradually decrease toward the edge.

Further, the curvature radius of the upper surface of the wing portion may be smaller than the curvature radius of the lower surface, so that the curvature of the lower surface of the wing portion may be gentle as compared with the upper surface.

Meanwhile, the restoration part may extend upwardly at an angle between 20 ° and 40 °.

In the present invention, the vertical tubular member is formed at its center with a support surface at which a restoration portion formed at a lower portion of the valve opening / closing means can be contacted and restored, and a second opening A third opening for sending outdoor air passing through the drain pipe to the drain pipe can be formed.

According to the present invention as described above, the vent valve assembly of the present invention is simple in construction, easy to manufacture, and capable of providing improved sealing ability and sealing reliability.

1 is an exploded perspective view showing a vent valve assembly of the present invention.
2 is an end view of the vent valve assembly of the present invention.
3 is a sectional view showing the valve opening / closing means of the present invention.
4 to 5 illustrate the operation of the vent valve assembly of the present invention,
FIG. 4 is a view showing that the valve opening / closing means is opened when outside air is introduced, and FIG. 5 is a view showing that the valve opening / closing means is restored to block the reverse number.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. It is provided to let you know.

FIG. 1 is an exploded perspective view showing the vent valve assembly of the present invention, FIG. 2 is an engagement sectional view showing the vent valve assembly of the present invention, and FIG. 3 is a sectional view showing the valve opening and closing means of the present invention.

The vent valve assembly according to the present invention mainly includes a valve housing 30, a vertical tubular member 10, a lid 20, and a valve opening / closing means 40.

The valve housing (30) includes at least one path from the ambient atmosphere into the drain pipe so that ambient air can flow into the drain pipe in response to a pressure drop in the drain pipe, A plurality of valve openings 32 and 34 may be formed in the housing 30.

The valve housing 30 has an outer circumferential surface 31 which is engaged with the lid 20. The outer circumferential surface 31 of the valve housing 30 is formed into a cylinder shape .

The valve housing 30 having the outer circumferential surface 31 having such a shape is formed with a space through which the outside air can flow into the inside of the valve housing 30 so that air introduced from outside through the inside space can be directed into the drain pipe .

The lid 20 is located at the upper end of the valve housing 30 and has an internal space. The lid 20 is formed to have a substantially symmetrical cross-sectional shape with respect to the valve housing 30, that is, to have a cylindrical cross-sectional shape of a convergent light, and the lid 20 and the valve housing 30 are combined The resulting internal space creates a sufficient space for the outside air to circulate.

The upper end of the outer circumferential surface 31 and the cover 20 can be coupled with each other by screws or by a force fitting method when the lid 20 is coupled to the upper portion of the valve housing 30. [ Do.

The valve openings 32 and 34 are formed by surrounding the outer circumferential surface 31 of the valve housing 30 and have a first opening 32 for introducing the outside air, And a second opening 34 formed in the valve seating portion 35 of the valve housing 30 to send the introduced outdoor air to the drain pipe.

The valve seating portion 35 is formed at the center of the valve housing 30 and acts as a membrane for dividing the valve housing 30 into an upper portion and a lower portion. A plurality of second openings 34 are formed in the valve seat 35 to form a path for sending the outside air introduced through the first opening 32 to the drain pipe.

On the other hand, the valve opening / closing means 40 is located below the valve seating portion 35 and the valve seating portion 35 is positioned so that the valve opening / closing means 40 is positioned below the valve seating portion 35 An inner space 38 is formed.

The valve opening / closing means 40 is accommodated in the inner space of the valve housing 30, specifically, the lower space of the valve seating portion 35, and corresponds to a negative pressure (-) when a pressure drop in the drainage pipe occurs And is opened and closed to open the path to introduce outside air, and when the negative pressure (-) is released, it is restored by self-elastic force to close the path, thereby opening and closing the pressure in the drain pipe to maintain atmospheric pressure.

In the present invention, the valve opening / closing means (40) is characterized by being made of a soft material having a self-elastic force. That is, in the present invention, the valve opening / closing means 40 is made of a soft material having self-elasticity to open or close the second opening portion 34.

Specifically, the valve opening / closing means 40 includes a fitting portion 42 inserted into a fixing hole 36 formed at the center of the valve seating portion 35 to position the valve opening / closing means 40, A wing portion 44 extending in a disk shape below the fitting portion 42 and a restoring portion 46 extending downward at the center of the wing portion 44 and having an inverted conical shape.

The fitting portion 42, the wing portion 44 and the restoring portion 46 are integrally formed and are made of a soft material such as rubber or silicone so that the wing portion 44 and the restoring portion 46 have their own elasticity .

The valve opening and closing means 40 of the present invention is moved up and down by a predetermined amount in accordance with the movement of the air while the fitting portion 42 is inserted into the fixing hole 36 formed at the center of the valve seating portion 35 Structure. In other words, the valve opening / closing means 40 can always be set vertically in spite of the continuous opening / closing operation by vertically moving the fitting portion 42 in the state where the fitting portion 42 is inserted into the fixing hole 36. This provides an advantage that the valve can not be correctly sealed because the opening / closing means is out of position or inclined due to the continuous opening / closing operation of the valve in the conventional art.

The wings (44) are formed to a position where the edges seal the second openings (34). That is, as shown in the enlarged view of FIG. 2, the wing portion 44 is formed up to a position sealing the second opening portion 34 so that the wing portion 44 normally covers the second opening portion 34 Prevent the odor from rising in the drain pipe and keep the trap seals.

The upper surface 44a is in contact with the atmospheric pressure and the lower surface 44b is in contact with the inner space pressure of the drain pipe 44a.

The upper surface 44a and the lower surface 44b of the wing portion 44 have a shape extending upward along a circular curve having a predetermined radius of curvature R1 and R2. The curvature radii R1 of the upper surface 44a and the lower surface 44b are different from each other and the curvature radius R1 of the upper surface 44a of the wing portion 44 is smaller than the curvature radius of the lower surface 44b R2 so that the curvature of the lower surface 44b of the wing portion becomes gentle as compared with the upper surface 44a.

Of course, the upper surface 44a and the lower surface 44b of the wing portion 44 may not have only a single radius of curvature R1 and R2 but may have a curved shape having a combination of various curvature radii. 3, the curvature of the upper surface 44a is formed to be more curved than the curvature of the lower surface 44b, so that the wing portion 44 is curved And has a shape gradually becoming thinner toward the edge.

Due to the shape of the wing portion 44, when the pressure in the drain pipe is lowered, it is easy to open the second opening portion 34 to introduce the outside air. When the negative pressure is removed, the wing portion 44 So that the edge can close the second opening portion 34. [0051] As shown in FIG.

In addition, since the inside (the central portion connected to the fitting portion 42) of the wing portion 44 is formed thicker, the opening and closing operation of the wing portion 44 is made very stable and the fitting portion 42, The connection portion of the valve portion 44 is firm, so that it is prevented from being torn or broken even when used for a long time, and the sealing reliability of the valve opening / closing means 40 can be improved.

Meanwhile, the restoration part 46 has an inverted conical shape. That is, since the lower end portion of the restoration portion 46 is sharp and the sharp bottom end thereof is in contact with the upper surface of the vertical tubular member 10, when the negative pressure is eliminated, the sharp lower end portion is biased by the self- Can be restored.

It is preferable that the restoration portion 46 of the present invention extends upwardly at an angle? Between 20 and 40 degrees. This is because the restoring portion 46 can support the valve opening / closing means 40 with an appropriate force when the angle? Formed by the surface of the restoring portion 46 with the vertical direction is larger than 20 degrees, 40 can be stably sealed. When the angle? Between the surface of the restoration part 46 and the vertical direction is greater than 40 degrees, the restoring part 46 can be easily compressed in the vertical direction It is preferable that the restoration part 46 extends upwards at an angle? Within 40 占 as the negative pressure may be formed in the drain pipe.

The vertical tubular member 10 extends downward from the valve housing 30 and is connected to the drain pipe. The restoration part 46 formed at the lower part of the valve opening / And a discharge port for discharging outside air passing through the second opening portion of the valve housing in a radial manner to a side portion of the receiving surface, Three openings 12 are formed.

The vertical tubular member 10 and the valve housing 30 are preferably threaded by a threaded portion 14.

4 to 5, when the pressure in the drain pipe is lowered, the valve opening / closing means 40 is moved downward in accordance with the negative pressure (-), So that the second opening 34 is opened to allow the outside air to move to the third opening 12 through the first opening 32. [

That is, the edge of the wing portion 44 descends downward and the path through the second opening portion 34 is opened. At the same time, the restoring portion 46 is also compressed downward by a predetermined amount by the self- Thereby forming a path of outside air.

In this case, since the fitting portion 42 is inserted into the fixing hole 36 formed at the center of the valve seating portion 35, the valve opening / closing means 40 moves downward in the vertical direction This is possible.

When the negative pressure (-) is released, the restoring portion 46 is restored by its own elastic force. At the same time, the wing portion 44 is restored to its original shape, The opening 34 is closed so that the inflow of the outside air is interrupted.

Therefore, the pressure in the drain pipe is kept at atmospheric pressure, and the reverse water and the odor are blocked, so that the drain trap can be stably operated.

The present invention as described above allows the valve opening / closing means 40 of soft material to be accommodated in the valve housing 30 to open or close the path of the outside air according to the pressure in the drain pipe, The reliability can be improved.

It is to be understood that the invention is not limited to the disclosed embodiment, but is capable of many modifications and variations within the scope of the appended claims. It is self-evident.

10: vertical tubular member 12: third opening
16: base surface 20: cover
30: valve housing 31: outer peripheral surface
32: first opening portion 34: second opening portion
35: valve seat portion 36: fixed hole
38: inner space 40: valve opening / closing means
42: fit portion 44: wing portion
46:

Claims (11)

A valve housing including at least one path from the ambient atmosphere into the drain pipe so that outside air can flow into the drain pipe in response to a pressure drop in the drain pipe;
A vertical tubular member extending downward from the valve housing and positioned to be connected to the drain pipe;
A cover positioned at an upper end of the valve housing and having an inner space; And
The valve is accommodated in the internal space of the valve housing. When a pressure drop in the drain pipe occurs, the path is opened corresponding to the negative pressure to introduce the outside air. When the negative pressure is released, the valve is restored by self- The valve opening / closing means being opened and closed to maintain the pressure in the drain pipe at atmospheric pressure;
A vent valve assembly for a drain pipe of a sanitary installation. The method according to claim 1,
Wherein a plurality of valve openings are formed in the valve housing to form the path. ≪ Desc / Clms Page number 19 > The method of claim 2,
Wherein the valve opening is formed to surround the outer circumferential surface of the valve housing and includes a first opening for introducing the outside air,
And a second opening formed in a valve seating portion of the valve housing for sending outdoor air introduced through the first opening to the drain pipe. The method of claim 3,
Wherein the valve opening / closing means is inserted into an internal space formed in a lower portion of the valve seating portion in which the second opening is formed. The method of claim 4,
Wherein the valve opening / closing means is made of a flexible material having a self-elastic force. The method of claim 5,
The valve opening / closing means includes a fitting portion inserted into a fixing hole formed at the center of the valve seating portion to position the valve opening / closing means,
A wing portion extending in a disk shape below the fitting portion and formed to a position where an edge seals the second opening portion;
And a restoration part extending downward at a center of the wing part and having an inverted conical shape. The ventilation valve assembly for a sanitary installation according to claim 1, The method of claim 6,
Wherein the wing portion includes an upper surface contacting the atmospheric pressure and a lower surface contacting the internal space pressure of the drain pipe. The method of claim 7,
Wherein an upper surface and a lower surface of the wing portion have a shape extending upward along a circular curve having a predetermined radius of curvature (R1, R2) and having a shape gradually thinner toward the edge, characterized in that the ventilation pipe for a sanitary installation Valve assembly. The method of claim 8,
Wherein a curvature radius of an upper surface of the wing portion is smaller than a radius of curvature of a lower surface, and a curvature of a lower surface of the wing portion is gentler than a curvature radius of a lower surface of the wing portion. The method of claim 6,
Wherein the restoration portion extends upwardly at an angle between 20 [deg.] And 40 [deg.] To an inverted conical surface. The method according to claim 1,
Wherein the vertical tubular member is formed at its center with a support surface that can be restored by contact with a restoring portion formed at a lower portion of the valve opening / closing means,
And a third opening is formed in a side portion of the bearing surface to transmit outside air radially passing through the second opening of the valve housing to the drain pipe.


KR1020150175216A 2015-12-09 2015-12-09 A Vent Valve Assembly for Drain Pipe of Sanitary Installations KR101798610B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150175216A KR101798610B1 (en) 2015-12-09 2015-12-09 A Vent Valve Assembly for Drain Pipe of Sanitary Installations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150175216A KR101798610B1 (en) 2015-12-09 2015-12-09 A Vent Valve Assembly for Drain Pipe of Sanitary Installations

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KR20170068250A true KR20170068250A (en) 2017-06-19
KR101798610B1 KR101798610B1 (en) 2017-11-16

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101885768B1 (en) * 2017-09-26 2018-08-06 강한표 Ventilation valve structure
JP2020023997A (en) * 2018-08-07 2020-02-13 丸一株式会社 Suction valve
KR102356646B1 (en) * 2021-06-15 2022-02-08 주식회사 투엔티원 Air admittance valve for sewage pipes of buildings

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101860794B1 (en) * 2018-01-31 2018-05-25 탑원이앤씨(주) Water drain control valve

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5054620B2 (en) * 2008-06-17 2012-10-24 未来工業株式会社 Ventilation valve
JP6265035B2 (en) * 2014-04-30 2018-01-24 株式会社オンダ製作所 Ventilation valve device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101885768B1 (en) * 2017-09-26 2018-08-06 강한표 Ventilation valve structure
JP2020023997A (en) * 2018-08-07 2020-02-13 丸一株式会社 Suction valve
KR102356646B1 (en) * 2021-06-15 2022-02-08 주식회사 투엔티원 Air admittance valve for sewage pipes of buildings

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