WO2022265252A1

WO2022265252A1 - Ventilation valve for building sewage pipe

Info

Publication number: WO2022265252A1
Application number: PCT/KR2022/007498
Authority: WO
Inventors: 임태진
Original assignee: (주)투엔티원
Priority date: 2021-06-15
Filing date: 2022-05-26
Publication date: 2022-12-22

Abstract

The present invention provides a ventilation valve (1) for a building sewage pipe (100), wherein the ventilation valve is installed in the building sewage pipe (100) to allow outside air to flow into the sewage pipe 100, block malodors, and facilitate drainage. The present invention comprises: a body (2) installed to communicate with the sewage pipe (100) and provided with a vent hole (21) that passes through vertically to allow outside air to flow in and be supplied to the sewage pipe (100); an opening/closing means (4) installed so as to slide due to negative pressure and positive pressure generated in the sewage pipe (100), and thereby open or close the vent hole (21) of the body (2); and a vent cover (3) which is coupled to an upper portion of the body (2) to protect, from the outside, the opening/closing means (4) positioned below, and in which an outside air inlet hole (31) passes through the inside and the outside so that predetermined outside air flows in. Accordingly, the ventilation valve (1) opens and closes more smoothly even after long-term use, and malodors from the sewage pipe (100) can be fundamentally blocked by preventing the malodors from leaking out through the ventilation valve (1), and since the period of use of the ventilation valve (1) can be extended, there are expected to be numerous effects such as a reduction in economic loss and a decrease in inconvenience of use.

Description

Ventilation valve for sewage pipes in buildings

The present invention relates to a ventilation valve for a waste drain pipe of a building, and more specifically, to a ventilation valve for a sewage pipe of a building installed in a waste drain pipe of a building to allow outside air to flow into the waste drain pipe while blocking odor and smooth drainage. it's about

In general, when constructing a building, a sewage pipe is installed to drain the sewage used as a washbasin, bathtub, toilet and drain, etc. In particular, in the case of apartments or high-rise buildings, such a sewage pipe is installed for each household. Domestic sewage is collected and drained through sewage pipes or septic tanks buried underground. At this time, various types of traps such as I-traps, P-traps, S-traps, and U-traps are placed at the bottom of each washbasin, bathtub, toilet, and drain. ) is installed to block the reverse flow of odors from the sewage pipe or septic tank, and when sewage is drained through the sewage pipe of the building, the sewage stagnant in the trap is pushed out and some of it flows back into the trap to close the trap. At this time, suction negative pressure acts on the sewage pipe and air must be supplied from the outside, so the ventilation valve (variously referred to as mini-vent, air vent, air supply valve, etc. Through this, outside air is introduced and supplied to the sewage pipe, and it was configured to block the outflow of odor generated in the sewage pipe or generated in the septic tank or sewage pipe and flowing back to the outside.

Conventional ventilation valves for sewage pipes are Korean Patent Publication No. 67092 in 2011 (published on June 21, 2011), Registered Patent No. 1472968 (published on December 16, 2014), and Utility Model Registration No. 478332 (published on September 2015). As shown in the announcement on the 18th), an external ventilation hole protrudes outward from the top of the main body and penetrates inside and outside is formed, and an internal ventilation hole is formed inside the top of the main body through a foreign matter prevention net to penetrate the inside of the main body. An upper cap is formed at the top to block the external vent hole and the internal vent hole from the outside, and is placed on top of the external vent hole from the inside of the cap to inhale negative pressure generated in the sewage pipe when sewage is discharged. The donut-shaped flexible sealing member or air seat or opening/closing member is formed so that the external ventilation hole is opened by being raised and the external ventilation hole is opened, and the external ventilation hole is closed by being lowered by the static pressure generated in the sewage pipe after the domestic wastewater is discharged from the sewage pipe. A flexible opening and closing ring made of rubber, silicon, or the like, referred to as a ring, was made to be provided.

The opening/closing ring made of rubber material is made of a donut-shaped thin sheet, so when used to some extent, it oxidizes itself or is deformed by the pressure caused by the continuous discharge of sewage from the sewage pipe, so that the opening/closing ring forms an external ventilation hole. Even if it is placed on the upper part, it is closely adhered to and the external ventilation hole is not completely closed, so the part is opened, and the odor flowing back through the sewage pipe has a problem of spreading to the interior of the building through the ventilation valve, and the opening and closing ring is oxidized or deformed. However, there was a problem in that the opening and closing action of the vent valve could not be properly performed despite the negative pressure or positive pressure in the sewage pipe because the guide member, which guides the opening and closing ring when moving up and down, did not smoothly move up and down. Since it is structured to descend by the weight of the ring and close the ventilation hole, the ventilation valve is not installed vertically with the wastewater horizontal piping, but is tilted to one side by more than 15°. Frictional force was generated in the guide that guides the elevator up and down, so the opening and closing ring did not properly close the ventilation hole, so it had a number of problems, such as continuous inflow of outside air or discharge of odor.

In the present invention, a new technology has been invented to solve the various problems of the prior art, and the opening and closing ring of the conventional ventilation valve is easily oxidized and deformed by the negative pressure and the positive pressure of the sewage pipe, and the opening and closing means of the ventilation valve By developing a new structure of the ventilation valve to conform to it while changing the ventilation valve, even if the opening and closing means is old due to long-term use of the ventilation valve, the ventilation valve is firmly blocked to fundamentally prevent the emission of odors. It is the main purpose of the invention to provide a.

In addition, compared to the conventional opening and closing ring of the ventilation valve, there is no deformation even if the opening and closing means is used for a long time, and even if some constituent members are oxidized or deformed or the ventilation valve is installed tilted, the opening and closing action is performed smoothly.

In addition, although not separately described, other objects within the range that can be inferred in view of the specific contents, claims, and drawings for carrying out the following invention, which describes in detail the ventilation valve for sewage pipes of buildings of the present invention, are also the present invention. is included in the overall problem of

The problems to be solved by the present invention are not limited to the problems mentioned above, and other problems to be solved by the present invention that are not mentioned here are to those of ordinary skill in the art to which the present invention belongs from the description below. will be clearly understood.

As a specific means for solving the above problems of the present invention, in the present invention, a ventilation valve for waste water pipe of a building is configured. A main body equipped with ventilation holes penetrating up and down to supply water to the sewage pipe, an opening/closing means installed to slide and open the ventilation holes of the main body by negative pressure and positive pressure generated in the sewage pipe, and coupled to the upper part of the main body to open and close the lower part. It is characterized in that a ventilation cover is included so that a predetermined amount of external air is introduced into the inside while protecting the means from the outside.

In the opening/closing means of the present invention, a disk elastically supported upward by a spring inside the main body and installed to be slid up and down, and an inlet through hole fixed to the upper side of the main body and formed to penetrate vertically in the middle are lifted and lowered by the lifting action of the lower disk. It is characterized in that it includes a support cap provided to be opened and closed, and an opening and closing flap fixed to the top of the disk and interposed so as to be in close contact between the disk and the support cap.

The opening/closing flap is formed to become thinner from the inside to the edge as the edge extends upward, and when the disk slides upward, the flexible edge is bent when in contact with the lower surface of the support cap, so that the contact area between the support cap and the opening/closing flap is widened. to be

The support cap is configured to increase the contact force between the support cap and the opening and closing flap by bending the edge of the opening/closing flap downward along the inclined surface of the lower surface of the support cap so that the edge of the opening/closing flap in contact with the lower surface is inclined downward from the inner inlet through hole edge to the outer edge. It is characterized in that the inclined structure is included.

An annular contact protrusion protruding downward from an inner edge of the inlet hole of the support cap and contacting the inner upper surface of the opening and closing flap to double contact with the edge of the opening and closing flap is characterized in that it is further included.

The ventilation cover includes a cover body formed in the middle to block the upper portion of the inflow hole of the support cap, a coupling wall bent downward at the edge of the cover body and fixed to the edge of the body or the edge of the support cap, and an edge of the cover body or coupling wall It is characterized in that several air inlet holes penetrated through the upper part of the outside air inlet are included, but the outside air inlet holes are upward air inlet holes vertically penetrated radially at the edge of the cover body and at the top of the coupling wall. It is characterized in that it consists of several outward air inlet holes penetrated inside and outside horizontally in connection with the upward air inlet hole in a radial direction.

The ventilation cover is formed integrally with the coupling wall and the cover body, and the outside air inflow hole is erected upward from the coupling wall and installed through a diaphragm whose upper end is integrally formed at the edge of the cover body. It is characterized in that it is formed inclined to one side corresponding to the radial line toward each standing on.

The ventilation cover includes several arc-shaped vortex guide pieces that guide the outside air flowing in from the ventilation inlet hole to gather while swirling around the center, or the outside air flowing into the vortex passes through the lower opening and closing means along the outer surface to the inside of the main body It may be characterized in that a downward guide tool configured to be raised downward in the middle of the cover body is included so as to be supplied to the cover body.

In addition to this, the opening/closing means includes a disc installed to slide and lift while being elastically supported upward by a spring inside the main body, and an inlet through hole fixed to the upper side of the main body and formed to penetrate vertically in the middle by the lifting action of the lower disc. It includes a support cap provided to be opened and closed, and an opening and closing flap fixed to the upper end of the disk and interposed so as to be in close contact with the disk and the support cap. , It is integrally formed on the edge of the inclined structure, protrudes downward at the bottom and is formed to be coupled to the annular coupling groove formed at the top of the edge of the main body, and is settled at the top to settle and combine the lower part of the coupling wall of the ventilation cover. It may be characterized by including a support wall provided with a set step and a contact protrusion configured to protrude downward in an annular shape from the inner lower portion of the inclined structure so that the upper surface of the opening and closing flap is in close contact with the bottom surface.

According to the specific means for solving the above problems, the ventilation valve for sewage pipe of a building of the present invention has a disc elastically supported by a spring instead of an opening and closing ring in a conventional ventilation valve equipped with an opening and closing ring, and a lifting action of the disc at the top of the disc. When a conventional vent valve is used for a long period of time, the opening and closing ring is oxidized when a conventional vent valve is used for a long period of time by configuring a flexible opening and closing flap to be interposed between the disk and the support cap, and the entire structure of the corresponding valve is also deformed. and deformed, the odor blocking was not properly performed, the opening and closing means of the present invention consists of a disk, a support cap, and an opening and closing flap between them. Even if it is, the disk elastically supported by the spring further presses the opening and closing flap with the support cap so that the opening and closing action of the vent valve is more smoothly performed, and the odor of the sewage pipe or septic tank flowing back to the sewage pipe is prevented from leaking through the vent valve. It is possible to fundamentally block the occurrence of odor, and as a result, the period of use of the vent valve can be extended, thereby reducing the economic loss caused by frequent replacement and purchase, and reducing the labor associated with replacement. It is a great invention.

In addition, among the ventilation valves for sewage pipes of buildings of the present invention, the vortex type ventilation valve has several outside air inlet holes installed radially through the ventilation cover through which external air first flows in, while installing them in a tangential direction and similarly inclined to the ventilation cover, By installing a vortex induction piece and a suction induction tool, and installing a support cap that is installed to correspond to the opening and closing flap that moves up and down of the opening and closing means to determine intake or blockage of external air, the inlet through hole is located lower than the edge, so that the ventilation cover When the opening/closing flap of the opening/closing means is opened, the outside air flowing in from the outside is sucked in as a vortex from the inside and guided downward. is to provide

The effects of the present invention are not limited to the effects mentioned above, and the effects of the present invention not mentioned here will be clearly understood by those skilled in the art from the description below. .

1 is a three-dimensional view of an assembled state showing a preferred example of the present invention

Figure 2 is a three-dimensional view of a separated state showing a preferred example of the present invention

Figure 3 is a cross-sectional view of an assembled state showing a preferred example of the present invention

Figure 4 is a cross-sectional view showing another form of the support cap of the present invention

5a and 5b are a partially broken three-dimensional view of an opening and closing flap extracted from the present invention and a partially broken three-dimensional view showing a change in shape when closed in contact with a support cap

6a and 6b are three-dimensional and cross-sectional views to which a separate fixing ring is applied instead of an integral fixing protrusion in the opening and closing flap in the present invention

Figures 7a and 7b are exemplary views showing a state in which the vent valve of the present invention is installed in the drain pipe of the toilet, a cross-sectional view showing the state of the toilet and the drain pipe when the toilet is drained, and a cross-sectional excerpt of the vent valve

8a and 8b are exemplary views showing a state in which the vent valve of the present invention is installed in the waste drain pipe of the toilet, a cross-sectional view showing the state of the toilet and the drain pipe when restored after draining the toilet, and an excerpted cross-sectional view of the vent valve

Figure 9 is a three-dimensional view of the assembled state as another preferred example of the present invention

Figure 10a is a three-dimensional view of a separated state as another preferred example of the present invention

Figure 10b is a three-dimensional view showing another example of the support cap in Figure 10a

Figure 11 is a cross-sectional view of the assembled state as another preferred example of the present invention

12 is a three-dimensional view of a partially broken opening and closing flap extracted from the present invention

13a and 13b are exemplary views showing a state in which the vent valve of the present invention is installed in the waste drain pipe of the toilet, a cross-sectional view showing the state of the toilet and the drain pipe when the toilet is drained, and a cross-sectional excerpt of the vent valve

14a and 14b are exemplary views showing a state in which the vent valve of the present invention is installed in the sewage pipe of the toilet, and a cross-sectional view showing the state of the toilet and the drain pipe when the toilet is restored after draining the toilet and an excerpted cross-sectional view of the vent valve

The terms used in this specification will be briefly described, and the present invention will be described in detail.

The terms used in the present invention have been selected from general terms that are currently widely used as much as possible while considering the functions in the present invention, but these may vary depending on the intention of a person skilled in the art or precedent, the emergence of new technologies, and the like. Therefore, the term used in the present invention should be defined based on the meaning of the term and the overall content of the present invention, not simply the name of the term.

In the entire specification, when a part is said to "include" a certain component, it means that it may further include other components, not excluding other components unless otherwise stated.

Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those skilled in the art can easily carry out the present invention. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein.

The specific details, including the problem to be solved, the means for solving the problem, and the effect of the invention with respect to the present invention are included in the embodiments and drawings to be described below. Advantages and features of the present invention, and methods for achieving them, will become clear with reference to the embodiments described below in detail in conjunction with the accompanying drawings.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

The present invention is to provide a ventilation valve for a waste drain pipe of a building, which is installed on a waste drain pipe of a building to allow outside air to flow into the waste drain pipe, while blocking odors and ensuring smooth drainage. However, the accompanying drawings are only examples for easily explaining the content and scope of the technical idea of the present invention, but are not limited thereto, and the terms used are also limited to the terms only for specifically describing the embodiments. It shouldn't be overinterpreted.

The ventilation valve 1 for the sewage pipe 100 of the building of the present invention, as shown in FIG. 1, consists of a lower body 2 and an upper ventilation cover 3, as shown in FIG. An opening/closing means 4 is provided between the main body 2 and the ventilation cover 3 to open and close the ventilation valve 1 to block the inflow of outside air and the discharge of odors.

In the main body 2, the upper end of the ventilation pipe 101 as shown in FIG. 3 installed on one side of the waste drainage pipe 100 is coupled to the lower inner side or connected to the ventilation pipe 101 so as to communicate with the sewage pipe 100. As shown in FIG. 4, coupling steps 2a are installed on the inside and outside so that the upper end of the connection pipe 102 is coupled to the lower outside, and external air is introduced into the inside of the main body 2. Ventilation holes 21 penetrating vertically are provided so as to be supplied to the sewage pipe 100 .

An inclined portion 23 inclined so that the center of the upper part of the ventilation hole 21 of the main body 2 protrudes upward, and a lower ventilation hole 21 and an upper opening and closing means 4 in the inclined portion 23 When the outside air is introduced into the ventilation hole 21, foreign substances are filtered out, and a plurality of through holes 24 formed to block various insects or foreign substances from being discharged through the ventilation hole 21 from the inside of the sewage pipe. ) Is provided with a filtering net 22 made of.

The ventilation cover 3 is coupled to the upper part of the main body 2 to protect the opening and closing means 4 of the lower part from the outside, but blocks the inflow of foreign substances and blocks strong wind pressure from the top to the bottom to open and close the means 4 It is configured to prevent this from being arbitrarily opened, and the outside air inlet hole 31 is formed to penetrate inside and outside so that a predetermined outside air flows into the inside, so that when outside air flows in, various insects or foreign substances from the outside can pass through the vent valve 1. It is possible to block the inflow into the inside, and the through volume of the outside air inlet hole 31 is the volume of the inlet through hole 71 of the support cap 7 of the opening and closing means 4 and the filtering net 22 of the main body 2 ) is formed to be the same as the volume of the through hole 24 so that the outside air supplied to the sewage pipe 100 through the vent valve 1 is constant so that the opening and closing means 4 smoothly opens and closes while not interfering with drainage. can make it happen.

At this time, as shown in FIGS. 2 to 4, the opening and closing means 4 is installed to open and close the ventilation hole 21 inside and above the main body 2 by the negative pressure and positive pressure generated in the sewage pipe 100 by sliding. The opening/closing means 4 is provided with a disk 5 that is elastically supported upward on the body 2 by a spring 6 inside the body 2 and slides up and down, and at this time, the inner surface of the body 2 moves up and down. A pair of standing sliding guide protrusions 25 are formed to protrude inward while facing each other, and between the pair of sliding guide protrusions 25 to the outside of the disk 5, the sliding supported when the disk 5 moves up and down. The support protrusion 51 is integrally formed so that the disk 5 smoothly moves up and down inside the main body 2 without being shaken.

As needed, a sliding guide hole 26 formed vertically through the center of the filtering net 22 of the main body 2 is provided, and the sliding guide hole 26 is provided in the lower center of the disk 5 when the disk 5 moves up and down. It may also be configured to be provided with a sliding support rod 52 that protrudes downward through and guides sliding.

In addition, the opening and closing means 4 is provided with a support cap 7 that is fixed to the upper side of the main body 2 and opens and closes the inlet through hole 71 formed to penetrate vertically in the middle by the lifting action of the lower disk 5 In addition, an opening/closing flap 8 is interposed between the disk 5 and the support cap 7, the flexible edge of which is fixed to the upper end of the disk 5 and protrudes obliquely so as to extend upward and outward.

At this time, the lower portion of the spring 6, which protrudes upward from the outer lower portion of the filtering net 22 of the body 2 and elastically supports the disk 5 to the inside between the inclined portion 23, is placed. is configured, and is spaced apart at a predetermined interval on the lower side of the disk 5 so that the upper part of the spring 6 is configured with a pair of inner protrusions 62 in which the upper portion of the spring 6 is inserted, so that the spring 6 is formed between the main body 2 and the disk (5) It is configured so as not to deviate from between.

In the present invention, the opening and closing flap 8 is formed thin from the inside to the edge while the edge extends upward as shown in FIG. 5A, and when the disk 5 slides upward as shown in FIGS. 3 and 4, FIG. 5B shows As described above, the flexible edge is bent while contacting the lower surface of the support cap 7 so that the contact area between the support cap 7 and the opening/closing flap 8 is widened.

As shown in FIG. 3, when the opening/closing flap 8 is fixed to the top of the disk 5, for example, a locking support 54 protrudes upward from the center of the top of the disk 5 and protrudes outward from the upper portion integrally formed. A protrusion 53 is provided, and a coupling hole 81 penetrated vertically to be coupled to the coupling protrusion 53 is formed in the center of the corresponding opening and closing flap 8, and the opening and closing flap 8 is made of flexible rubber or It is made of silicone and urethane, and when coupled to the disk 5, the coupling hole 81 is expanded to extend wider than the locking support 54 on the upper part of the coupling protrusion 53 so that it penetrates. ), the upper part of the opening/closing flap 8 is held by the locking support 54, and the annular fixing protrusion 82 is formed on the inside of the opening/closing flap 8, that is, on the upper part or lower part of the edge of the coupling hole 81 is integrally formed (formed on the upper part in the drawing) so that the opening and closing flap 8 is firmly fixed between the upper surface of the disk 5 and the lower surface of the locking support 54 of the coupling protrusion 53, and the opening and closing flap 8 and the coupling protrusion (53) It is possible to completely block the emission of odors through the gaps.

In the opening and closing flap 8, as shown in FIGS. 6A and 6B, instead of the annular fixing protrusion 82 integrally formed on the upper or lower edge of the coupling hole 81, it is manufactured separately from the opening and closing flap 8 A ring-shaped fixing ring 83 made of an elastic material such as rubber, silicone, or urethane may be provided, and the fixing ring 83 connects the upper surface of the disk 5 and the coupling protrusion 53 as shown in FIG. It is possible to ensure that the opening and closing flap 8 is firmly fixed between the lower surfaces of the locking support 54, and in FIG. 6B, the fixing ring 83 is coupled to the upper part of the opening and closing flap 8, but in some cases ) The fixing ring 83 may be coupled to the lower part.

As shown in FIG. 3, the support cap 7 in contact with the opening/closing flap 8 of the present invention is inclined to extend downward from the edge of the inflow hole 71 on the inside to the outer edge, so that the edge of the opening/closing flap 8 in contact with the lower surface It is preferable to include an inclined structure 72 configured to increase the contact force between the support cap 7 and the opening and closing flap 8 by bending the lower surface of the support cap 7 downward along the inclined surface 73. As shown in FIG. 4 by the inclined structure 72, the support cap 7 is formed horizontally from the edge of the inlet through hole 71 to the outer edge, as shown in FIG. 3, the outer edge of the support cap 7 is inclined downward. Since the edge of the flap 8 is further bent downward, the contact force is increased and the contact area is widened compared to the case where the flap is bent horizontally, so that odor blocking is better achieved.

And, as shown in FIGS. 3 and 4, the support cap 7 has an annular contact protrusion 74 protruding downward from the inner edge of the inlet through hole 71 of the support cap 7, and is formed on the inside of the edge of the opening and closing flap 8. It is configured to make double contact with the edge of the opening/closing flap 8 that was in contact with the upper surface of the upper surface, that is, the upper surface of the inner side and contacted with the lower surface of the support cap 7 from the outside.

As shown in FIGS. 1 to 4, the ventilation cover 3 protecting the opening and closing means 4 has a cover body 32 blocking the upper part of the inflow hole 71 of the support cap 7 in the center, and the cover The edge of the body 32 is bent downward to form a coupling wall 33 fixed to the edge of the body 2 or the edge of the support cap 7, and the edge of the cover body 32 or the coupling wall 33 A number of outside air inlet holes 31 through which outside air is introduced are formed radially at regular intervals while penetrating the inside and outside of the upper part of the outside air inlet.

These outdoor air inlet holes 31 are radially upward air inlet holes 311 through which several upward and downward radially pass through the edge of the cover body 32 and radially upward outdoor air inlet holes 311 on the upper part of the coupling wall 33. ) It is composed of several outward air inlet holes 312 penetrated horizontally inside and outside in connection with ).

The ventilation valve 1 for the sewage pipe 100 of the building of the present invention configured as described above is used in a water use place 200 such as a toilet, washbasin, bathtub, and floor drain, as shown in FIGS. 7A and 7B. When the sewage mixed with later water is drained through the sewage pipe 100, negative pressure is generated in the sewage pipe 100 when drainage is performed through the sewage pipe 100 to the sewage pipe or septic tank, so that the drainage is not smooth. Ventilation valves 1 are installed in each sewage pipe 100 of Koza to supply outside air to the sewage pipe 100 according to the number of households or water usage places 200 such as guest rooms.

To explain its action in more detail, as shown in FIG. 7A, when the water is flushed from the toilet of the water use place 200, the wastewater passes through the trap 201 of the toilet and is drained to the sewage pipe 100, and the sewage pipe ( 100) while drainage is made to one side and negative pressure lower than atmospheric pressure is generated to the other side, as shown in FIG. ) is opened by the opening/closing means 4, that is, while the disc 5 descends, the opening/closing flap 8 coupled to the engaging protrusion 53 on the upper part of the disc 5 is separated from the support cap 7. Outside air passes through the outside air inlet hole 31 formed of the upper outside air inlet hole 31 of the cover body 32 of the ventilation cover 3 and the outward air inlet hole 312 of the coupling wall 33 It is introduced through the inlet through hole 71 of the main body 2 and turns to the outside of the disk 5 from the inside of the main body 2 through the through hole 24 of the filtering net 22 at the bottom of the disk 5. The supply is made to the sewage pipe 100 through the pores 21 so that the negative pressure is changed to the positive pressure so that the drainage is smoothly performed.

As shown in FIG. 7A, after drainage is performed, as shown in FIG. 8A, the trap 201 is blocked and the odor flowing back through the waste water pipe 100 is primarily blocked from flowing back to the water use point 200, and the waste water pipe Before some of the odor flowing back through the 100 is discharged to the vent valve 1, the inside of the sewage pipe 100 is in a positive pressure state instead of negative pressure, so as shown in FIG. 8B, the main body 2 ) As the disk 5 rises from the inside, the opening/closing flap 8 fixed to the coupling protrusion 53 on the upper part of the disk 5 is tightly interposed between the support cap 7 and the disk 5, and the support cap 7 Since the inflow hole 71 of the ) is blocked, it is possible to fundamentally block odor from being discharged through the inflow hole 71 to the outside air inlet hole 31 of the ventilation cover 3.

At this time, the flexible opening/closing flap 8 with its edge extended upward comes into contact with the bottom surface of the support cap 7 as its edge is bent, and the contact area widens, so that the odor is blocked more reliably, and the support cap 7 When the inlet through hole 71 is formed as an inclined structure 72 inclined higher than the outside, the edge of the opening/closing flap 8 is in contact with the inclined surface 73 below the inclined structure 72 so that the edge end is bent downward. It is possible to increase the odor blocking rate by increasing the contact area and improving the blocking power of the contact surface.

In addition to this, the annular contact protrusion 74 formed downward at the bottom of the edge of the inlet through hole 71 of the support cap 7 is in contact with the inner upper surface from the edge of the opening and closing flap 8 to the edge of the opening and closing flap 8. The double contact between the bent contact portion and the contact portion of the contact protrusion 74 of the opening and closing flap 8 and the support cap 7 makes blocking more fundamental, and the opening and closing flap coupled to the coupling protrusion 53 ( The annular fixing protrusion 82 formed upward on the edge of the coupling hole 81 of 8) contacts the lower portion of the locking support 54 above the coupling protrusion 53 so that the lower surface of the locking support 54 and the disk ( 5) While fixing the opening/closing flap 8 between the upper surfaces more firmly, it is possible to fundamentally block odor from being discharged even between the coupling protrusion 53 and the opening/closing flap 8.

According to the present invention, the opening/closing means 4 of the present invention consists of a disk 5, a support cap 7, and an opening/closing flap 8 therebetween, and the flexible opening/closing flap 8 may not be oxidized or deformed due to long-term use. Even if it occurs, the disc 5 elastically supported by the spring 6 rises, so the opening/closing flap 8 is further pressed with the support cap 7 so that the odor flowing back to the sewage pipe 100 flows out through the vent valve 1. It is possible to fundamentally block the occurrence of odor by preventing the occurrence of odor, and the opening and closing action of the vent valve 1 is more smoothly performed, and as a result, the period of use of the vent valve 1 can be extended, which is economical due to frequent replacement and purchase. It is possible to reduce the phosphorus loss, and to obtain various effects such as reducing the labor required for replacement.

Hereinafter, another embodiment of the ventilation valve for waste water pipe of a building according to the present invention will be described in detail with reference to the accompanying drawings.

The ventilation valve 1 for the sewage pipe 100 of the building of the present invention is composed of a lower body 2 and an upper ventilation cover 3, as shown in FIG. 9, as shown in FIGS. 10A and 10B. As described above, an opening/closing means 4 is provided between the main body 2 and the ventilation cover 3 to open and close the ventilation valve 1 to block the inflow of outside air and the discharge of odors.

In the main body 2, the upper end of the vent pipe 101 as shown in FIG. 11 installed on one side of the sewage pipe 100 is coupled to the lower inner side or connected to the vent pipe 101 so as to communicate with the sewage pipe 100. Although not shown as necessary, coupling steps 2a are installed on the inside and outside so that the top of the separate connection pipe connected to the top of the sewage pipe 100 is coupled to the outside of the bottom, respectively, and the main body 2 Ventilation holes 21 are provided on the inside of the upper and lower sides so that outside air can be introduced and supplied to the sewage pipe 100.

At this time, as shown in FIGS. 10A to 11, the opening and closing means 4 is installed to slide and open the ventilation hole 21 inside and above the main body 2 by negative pressure and positive pressure generated in the sewage pipe 100, such The opening/closing means 4 is provided with a disk 5 that is elastically supported upward on the body 2 by a spring 6 inside the body 2 and slides up and down, and at this time, the inner surface of the body 2 moves up and down. A pair of standing sliding guide protrusions 25 are formed to protrude inward while facing each other, and between the pair of sliding guide protrusions 25 to the outside of the disk 5, the sliding supported when the disk 5 moves up and down. The support protrusion 51 is integrally formed so that the disk 5 smoothly moves up and down inside the main body 2 without being shaken.

In the present invention, as shown in FIG. 12, the opening/closing flap 8 is formed thin from the inside to the edge as the edge extends upward, and as shown in FIG. 11, when the disk 5 slides upward, the flexible edge becomes a support cap. It is bent while contacting the lower surface of (7) so that the contact area between the support cap 7 and the opening and closing flap 8 is widened.

As shown in FIG. 11, when the opening/closing flap 8 is fixed to the top of the disk 5, for example, a locking support 54 protrudes upward from the center of the top of the disk 5 and protrudes outward from the upper portion integrally formed. A protrusion 53 is provided, and a coupling hole 81 penetrated vertically to be coupled to the coupling protrusion 53 is formed in the center of the corresponding opening and closing flap 8, and the opening and closing flap 8 is made of flexible rubber or It is made of silicone and urethane, and when coupled to the disk 5, the coupling hole 81 is expanded to extend wider than the locking support 54 on the upper part of the coupling protrusion 53 so that it penetrates. ), the upper part of the opening and closing flap 8 is caught and supported by the locking support 54, and if necessary, an annular fixing protrusion on the inside of the opening and closing flap 8, that is, on the upper or lower edge of the coupling hole 81 is integrally formed (not shown) so that the opening and closing flap 8 is firmly fixed between the upper surface of the disk 5 and the lower surface of the locking support 54 of the coupling protrusion 53, and the opening and closing flap 8 and the coupling protrusion 53 It is possible to completely block the release of odors through the gaps.

As shown in FIG. 12, in the opening and closing flap 8, rubber, silicone, urethane, etc. manufactured separately from the opening and closing flap 8 are used instead of the ring-shaped fixing protrusion integrally formed on the upper or lower edge of the coupling hole 81. A ring-shaped fixing ring 83 made of an elastic material may be provided, and the fixing ring 83 is attached to the upper surface of the disk 5 and the locking support 54 of the coupling protrusion 53, as shown in FIG. ) It is possible to ensure that the opening and closing flap 8 is firmly fixed between the lower surfaces, and in FIG. (83) can be combined.

As shown in FIG. 11, the support cap 7 in contact with the opening and closing flap 8 of the present invention is inclined downward from the outer edge to the edge of the inner inlet through hole 71 so that the edge of the opening and closing flap 8 in contact with the lower surface is in contact. An inclined structure 72 is provided, and is formed integrally with the edge of the inclined structure 72 and protrudes downward from the lower end to be coupled to the annular coupling groove 27 formed at the upper end of the edge of the main body 2. A support wall 75 composed of a set step 75b formed to be settled and coupled to the lower part of the coupling wall 33 of the ventilation cover 3 by being settled at the upper end together with the assembly 75a is provided, and the inclined structure 72 A contact protrusion 74 configured to protrude downward in an annular shape at the bottom of the inner side so that the upper surface of the opening and closing flap 8 is in close contact with the bottom surface is further provided. The edge of the flap 8 can be bent to widen the contact surface.

As shown in FIGS. 9 to 11, the ventilation cover 3 protecting the opening and closing means 4 is integrally formed with a cover body 32 and an outer coupling wall 33 integrally formed on the top, and the cover body 32 is It is formed to block the upper part of the inflow hole 71 of the support cap 7 in the middle, and the coupling wall 33 is formed with a coupling wall 33 fixed to the edge of the main body 2 or the edge of the support cap 7 And, the outside air inlet hole 31 of the ventilation cover 3 is formed at the corner of the coupling wall 33 and the cover body 32 so that suction is made to both the side and the top surface, and the coupling wall 33 rises upward. The upper end is installed between the diaphragms 34 integrally formed on the edge of the cover body 32, and the diaphragm 34 has a radius from the center of the cover body 32 to each standing on the coupling wall 33. It is formed to be inclined to one side corresponding to the line R, so that external air flowing into the radial outside air inlet hole 31 is introduced into the ventilation cover 3 while generating a vortex.

The ventilation cover 3 may be further provided with several arc-shaped vortex guide pieces 35 for inducing the outside air flowing from the ventilation inlet hole 31 to gather while being vortexed to the center. A downward guide tool 36 configured to protrude downward may be further provided in the center of the cover body 32 so that outside air is supplied to the inside of the main body 2 through the lower open/close means 4 along the outer surface.

The outside air inlet hole 31 is radially inclined at the edge of the cover body 32 (= one side corresponding to the radial line R from the center of the cover body 32 to each standing on the coupling wall 33). oblique) between the upward air inlet hole 311 through which several vertically penetrated and the diaphragm 34 radially on the upper part of the coupling wall 33 (= the coupling wall 33 at the center of the cover body 32) It is composed of several outward air inlet holes 312 penetrating horizontally inward and outward so as to be linked with the upward outside air inlet hole 311 (inclined to one side corresponding to the radial line R) facing each standing.

In addition to this, the present invention, as shown in FIG. 10B, the inclined diaphragm 34 of the ventilation cover 3 on the upper surface of the inclined structure 72 of the support cap 7, the outside air inlet hole 31 and the vortex induction piece 35 And outside air, which is introduced into the vortex by the downward guide tool 36 and is directly supplied to the inlet through hole 71, the outside air guided downward rides the inclined structure 72 inclined downward toward the center of the inlet through hole 71 When flowing into the ventilation cover 3, several vortex guide grooves 72a may be radially formed so that the vortex is further induced in the same direction as the vortex inside the ventilation cover 3.

The vortex-type ventilation valve 1 for the sewage pipe 100 of the building of the present invention configured as described above is used in water use places 200 such as toilets, washbasins, bathtubs, and floor drains, as shown in FIGS. 13A and 13B When draining the sewage mixed with the water after doing it through the sewage pipe 100, when the drainage is made through the sewage pipe 100 to the sewage pipe or septic tank, negative pressure is generated in the waste water pipe 100, so that the drainage is not smooth. In order to solve this problem, a vent valve 1 is installed in each sewage pipe 100 to supply outside air to the sewage pipe 100 according to the number of households or water usage places 200 such as guest rooms.

To explain its operation in more detail, as shown in FIG. 13A, when the water is flushed from the toilet of the water use place 200, the wastewater passes through the trap 201 of the toilet and is drained to the sewage pipe 100, and the sewage pipe ( 100), while drainage is made to one side and negative pressure lower than atmospheric pressure is generated to the other side, the disk 5 elastically supported by the spring 6 in the main body 2 descends as shown in FIG. ) is opened by the opening/closing means 4, that is, while the disc 5 descends, the opening/closing flap 8 coupled to the engaging protrusion 53 on the upper part of the disc 5 is separated from the support cap 7. Outside air passes through the outside air inlet hole 31 formed of the upward outside air inlet hole 311 of the cover body 32 of the ventilation cover 3 and the outward outside air inlet hole 312 of the coupling wall 33 It is introduced through the inlet through hole 71 of the main body 2 and turns to the outside of the disk 5 from the inside of the main body 2 through the through hole 24 of the filtering net 22 at the bottom of the disk 5. The supply is made to the sewage pipe 100 through the pores 21 so that the negative pressure is changed to the positive pressure so that the drainage is smoothly performed.

At this time, when the opening and closing means 4 is opened, each diaphragm corresponds to a radial line R directed from the center of the cover 32 to each of the diaphragms 34 standing on the coupling wall 33 in the ventilation cover 3. (34) is formed inclined to one side, and when external air is introduced into the outside air inlet hole (31) formed between the diaphragms (34), vortex is generated and introduced. At this time, the vortex induction formed inside the ventilation cover (3) The vortex is further induced by the piece 35, and the outside air flowing into the vortex gathers in the inner center of the ventilation cover 3 and the vortex descends along the downward guide tool 36, lower opening and closing means It flows into the inlet through hole 71 of the support cap 7 of (4), and in addition to this, the vortex flow is caused by the ventilation cover 3 by the vortex guide groove 72a on the upper surface of the inclined structure 72 of the support cap 7 Since the outside air introduced into the vortex is further induced into the vortex, according to the present invention, the outside air is more quickly and smoothly introduced into the sewage pipe 100, and the drainage is also performed smoothly.

As shown in FIG. 13A, after the drainage is performed, as shown in FIG. 14A, the trap 201 is blocked and the backflow of the odor flowing back through the waste water pipe 100 to the water use point 200 is blocked, and Before some of the odor flowing back through the drain pipe 100 is discharged to the vent valve 1, the inside of the sewage pipe 100 is in a positive pressure state instead of negative pressure, so as shown in FIG. 14B, the body ( 2) As the disk 5 rises from the inside, the opening/closing flap 8 fixed to the coupling protrusion 53 on the upper part of the disk 5 is closely interposed between the support cap 7 and the disk 5, so that the support cap ( Since the inlet through hole 71 of 7) is blocked, it is possible to fundamentally block odor from being discharged through the inlet through hole 71 to the outside air inlet hole 31 of the ventilation cover 3.

At this time, the flexible opening/closing flap 8 with its edge extended upward comes into contact with the lower surface of the contact protrusion 74 of the inclined structure 72 of the support cap 7 while being bent, so that the contact area is widened and odor blocking is more reliable. As shown in FIG. 14B, the lower side of the opening and closing flap 8 is bent while pressing the edge of the opening and closing flap 8 with the contact protrusion 74 of the inclined structure 72 and the upper side of the edge of the disk 5 The opening/closing flap 8 presses and adheres more closely between the disk 5 and the support cap 7 so that the blocking force of the contact surface is improved, so that the odor blocking rate is significantly increased.

As such, it will be understood that the technical configuration of the present invention described above can be implemented in other specific forms without changing the technical spirit or essential features of the present invention by those skilled in the art to which the present invention belongs.

Therefore, the embodiments described above should be understood as illustrative and not restrictive in all respects, and the scope of the present invention is indicated by the claims to be described later rather than the detailed description, and the meaning and scope of the claims and their All changes or modified forms derived from equivalent concepts should be construed as being included in the scope of the present invention.

[Description of code]

1: Ventilation valve

Reference Numerals 2: Main body 2a: Coupling step 21: Ventilation hole 22: Strain net 23: Inclined part 24: Through hole 25: Sliding guide protrusion 26: Sliding guide hole 27: Coupling groove

Reference Numerals 3: Ventilation cover 31: Outdoor air inflow hole 311: Upward air inflow hole 312: Outward air inflow hole 32: Cover body 33: Combined wall 34: Partition plate 35: Vortex guide piece 36: Downward guide tool

4: opening and closing means

5: disk 51: sliding support protrusion 52: sliding support bar 53: coupling protrusion 54: catching support

6: spring 61: seat protrusion 62: inner protrusion

Reference Numerals 7: support cap 71: inlet through hole 72: inclined structure 72a: vortex guide groove 73: inclined surface 74: contact protrusion 75: support wall 75a: assembly 75b: set-up step

8: opening and closing flap 81: coupling hole 82: fixing protrusion 83: fixing ring

100: sewage pipe 101: ventilation pipe 102: connection pipe

200: Where to use water (toilet, washbasin, bathtub, floor drain, etc.) 201: Trap

Claims

A main body 2 provided with ventilation holes 21 penetrating vertically so as to be installed to communicate with the sewage pipe 100 and supply outside air to the inside of the waste drain pipe 100;

Opening/closing means (4) installed to open and close the ventilation hole (21) of the main body (2) by means of negative pressure and positive pressure generated in the sewage pipe (100);

a ventilation cover 3 coupled to the upper part of the main body 2 and having an outside air inlet hole 31 penetrating the inside and outside to allow a predetermined outside air to flow into the inside while protecting the lower opening and closing means 4 from the outside;

Ventilation valve for sewage pipes of buildings, characterized in that it is included.
According to claim 1,

The opening and closing means 4,

A disc 5 installed to slide up and down by being elastically supported upward on the main body 2 by a spring 6 inside the main body 2;

a support cap 7 fixed to the upper side of the main body 2 and having an inlet through hole 71 formed to penetrate vertically in the middle thereof to be opened and closed by the lifting action of the lower disk 5;

An opening/closing flap 8 fixed to the top of the disk 5 and interposed so as to be in close contact between the disk 5 and the support cap 7;

Ventilation valve for sewage pipe of a building, characterized in that it is included.
According to claim 2,

The opening/closing flap 8 has an edge extending upward and thinning from the inside to the edge, so that when the disk 5 slides upward, the flexible edge is bent when in contact with the lower surface of the support cap 7, thereby forming the support cap 7. A ventilation valve for sewage pipes of buildings, characterized in that the contact area between the opening and closing flaps (8) is widened.
According to claim 3,

The support cap 7 slopes downward from the edge of the inflow hole 71 on the inside to the outer edge, so that the edge of the opening/closing flap 8 in contact with the lower surface moves downward along the inclined surface 73 on the lower surface of the support cap 7. A ventilation valve for sewage pipes of buildings, characterized in that it includes an inclined structure (72) configured to be bent to increase the contact force between the support cap (7) and the opening and closing flap (8).
According to claim 3,

An annular contact protrusion 74 protrudes downward from the inner edge of the inlet through hole 71 of the support cap 7 and contacts the inner upper surface of the opening and closing flap 8 to make double contact with the edge of the opening and closing flap 8. Ventilation valve for sewage pipes of buildings, characterized in that further included.
According to claim 2,

The ventilation cover 3,

a cover body 32 formed to block the upper portion of the inlet through hole 71 of the support cap 7 in the center;

a coupling wall 33 bent downward at the edge of the cover body 32 and fixed to the edge of the main body 2 or the edge of the support cap 7;

Several outside air inlet holes 31 passing through the edge of the cover body 32 or the top of the coupling wall 33 to allow outside air to flow in;

Ventilation valve for sewage pipe of a building, characterized in that it is included.
According to claim 6,

The outside air inlet hole 31,

Several upward air inlet holes 311 radially penetrated vertically at the edge of the cover body 32;

and several outward air inlet holes 312 that are horizontally penetrated in and out of the upper portion of the coupling wall 33 so as to be radially connected with the upward air inlet hole 311;

Ventilation valve for sewage pipes of buildings, characterized in that consisting of.
According to claim 1,

The ventilation cover 3 is formed integrally with the coupling wall 33 and the cover body 32;

The air inlet hole 31 is installed upward from the coupling wall 33 and penetrates between the diaphragms 34 integrally formed on the edge of the upper end of the cover body 32;

The diaphragm 34 is formed inclined to one side in response to the radial line R directed from the center of the cover body 32 to each standing on the coupling wall 33;

Ventilation valve for sewage pipes of buildings, characterized in that.
According to claim 8,

The ventilation cover 3 includes several arc-shaped vortex guide pieces 35 for inducing the outside air flowing from the ventilation inlet hole 31 to gather while being vortexed to the center;

Ventilation valve for sewage pipe of a building, characterized in that it further comprises.
According to claim 9,

The ventilation cover 3 is a downward guide configured to rise downward in the center of the cover body 32 so that outside air flowing into the vortex is supplied to the inside of the main body 2 through the lower opening and closing means 4 along the outer surface ( 36);

Ventilation valve for sewage pipe of a building, characterized in that it further comprises.
According to claim 8,

The opening/closing means 4 is elastically supported by a spring 6 on the inside of the main body 2 to the top of the main body 2 and installed to slide up and down, and a disk 5 fixed to the upper side of the main body 2 to be centered. The support cap 7 provided so that the inlet through hole 71 formed to penetrate vertically through the lower disk 5 is opened and closed by the lifting action of the lower disk 5, and fixed to the upper end of the disk 5 so that the disk 5 and the support cap ( 7) includes an opening and closing flap 8 interposed so as to be in close contact with each other;

The support cap 7 is

an inclined structure 72 inclined downward from an outer edge to an inner edge of the inlet through hole 71;

An annular assembly 73a integrally formed on the edge of the inclined structure 72, protruding downward at the bottom and coupled to the annular coupling groove 27 formed at the top of the edge of the main body 2, and settling at the top a support wall 73 formed of a seating step 73b formed so that the lower portion of the coupling wall 33 of the ventilation cover 3 is seated;

a contact protrusion 74 protruding downward in an annular shape from the inner lower portion of the inclined structure 72 so that the upper surface of the opening/closing flap 8 is in close contact with the lower surface;

Ventilation valve for sewage pipe of a building, characterized in that it is included.