KR200470846Y1 - A check valve for a sewer pipe - Google Patents

A check valve for a sewer pipe Download PDF

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Publication number
KR200470846Y1
KR200470846Y1 KR2020120008201U KR20120008201U KR200470846Y1 KR 200470846 Y1 KR200470846 Y1 KR 200470846Y1 KR 2020120008201 U KR2020120008201 U KR 2020120008201U KR 20120008201 U KR20120008201 U KR 20120008201U KR 200470846 Y1 KR200470846 Y1 KR 200470846Y1
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KR
South Korea
Prior art keywords
sewage
inlet
outlet
opening
valve
Prior art date
Application number
KR2020120008201U
Other languages
Korean (ko)
Inventor
최종력
Original Assignee
최종력
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Publication date
Application filed by 최종력 filed Critical 최종력
Priority to KR2020120008201U priority Critical patent/KR200470846Y1/en
Application granted granted Critical
Publication of KR200470846Y1 publication Critical patent/KR200470846Y1/en

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    • 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
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member
    • 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
    • E03F2005/0416—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps with an odour seal
    • E03F2005/0417—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps with an odour seal in the form of a valve

Abstract

The present invention relates to a non-return valve for a sewage pipe, and in particular, when the inlet side is inserted into the sewer pipe protruding toward the manhole, it does not easily fall out, and foreign matter does not accumulate in the lower portion of the outlet, so that the opening / closing disk is closed securely, while the inlet side is closed. It is related with a non-return valve for sewage pipes so that the sewage and sewage discharged through the sewage pipes are smoothly discharged because the foreign substances are not caught at the inlet side because the thickness of the thin film is thin.
The present invention sewage pipe backflow prevention valve 100 includes a valve body having an outlet and an inlet formed at both ends with a flange portion, and an opening and closing disk hinged to open and close the outlet of the valve body, wherein the inlet 113 The outer circumferential surface of the wedge portion 113a is provided with at least one equator so as not to fall easily when the outer circumferential surface of the inlet 113 is inserted into the sewer.

Description

Check valve for sewage pipes {A CHECK VALVE FOR A SEWER PIPE}

The present invention relates to a non-return valve for a sewage pipe, and in particular, when the inlet side is inserted into the sewer pipe protruding toward the manhole, it does not easily fall out, and foreign matter does not accumulate in the lower portion of the outlet, so that the opening / closing disk is closed securely, while the inlet side is closed. It is related with a non-return valve for sewage pipes so that the sewage and sewage discharged through the sewage pipes are smoothly discharged because the foreign substances are not caught at the inlet side because the thickness of the thin film is thin.

In general, the backflow prevention valve for sewage pipe is fixedly installed in the center of the sewage pipe between the manhole where the local sewage is collected and the regional sewerage, and is installed to prevent the backflow of sewage or odor through the regional sewage as well as the smooth discharge of sewage.

Such a non-return valve is a representative of the non-return valve for sewage pipes and other water pipes presented in the Utility Model Registration No. 20-338590 by the present applicant, the configuration of the valve body is coupled to the sewage pipe between the manhole and the wide area sewer; It is fastened and fixed to the valve body and the other side is made of a valve cover coupled to the other side of the sewer pipe, and the opening and closing disk to be selectively opened and closed by the hinge pin on the valve cover to selectively open and close the outflow passage.

However, such a conventional non-return valve has an excessive cost because the sewer pipe connecting the manhole and the wide sewer is buried underground at an appropriate depth, so that only the non-return valve is installed in order to dig the ground. Since these components are made up of many components, various defects are pointed out such as an increase in costs and frequent failures due to an increase in manufacturing and assembly labor and required materials.

In order to alleviate such drawbacks, the check valve for sewage pipes has been proposed by the applicant of the Korean Utility Model Publication No. 20-2008-0003907. The cylindrical valve body has an opening and closing slope and an outlet formed on one side of the flange. It consists of an opening and closing disk hinged to the valve body to be attached and detached to the opening and closing inclined portion, and a hinge pin connecting them.

Therefore, the outer and inner surfaces of the valve body can be easily fixed and installed on the inlet or outlet side of a sewage pipe or septic tank buried by forming a flange portion and an opening and closing inclined portion, respectively, so that the installation and maintenance are easy and the configuration is simple. Minimize assembly costs and ensure operational reliability.

However, such a backflow prevention valve for sewage pipes has a structure in which the inlet port is easily taken out when inserted into the sewer pipe protruding toward the manhole, and thus has a drawback of being easily released when the housing protrudes toward the manhole using the fastening hole of the housing.

In addition, the upper part of the outlet port, as well as the lower portion protrudes longer than the opening and closing inclined portion, if accumulated in the lower portion of the outlet, the opening and closing disc is caught in the case of rising to the height of the opening and closing portion there is a drawback that does not close securely.

In addition, there is a defect that the foreign material is caught on the inlet side because the thickness of the inlet side is thick, and the pipe thickness of the opening and closing inclination portion is also thick, so that the area that is in close contact with the opening and closing disk is not good sealing.

The present invention is devised to solve the above-mentioned general drawbacks, not only does not fall easily when the inlet side is inserted into the sewer pipe protruding toward the manhole, the lower portion of the outlet is protruded shorter than the opening and closing the foreign matter outlet The purpose is to provide a non-return valve for the sewage pipe is to be closed so that the opening and closing disk is securely closed.

The object of the present invention is to provide a non-return valve for sewage pipes so that the sewage and sewage discharged through the sewage pipes are smoothly discharged because the foreign material is not caught at the inlet side because the thickness of the inlet side is thin.

The backflow prevention valve for sewage pipes of the present invention for achieving the above object includes a valve body having an outlet and an inlet formed at both ends with a flange portion, and an opening / closing disk hinged to open and close the outlet of the valve body. The outer circumferential surface of the inlet is characterized in that the wedge portion is provided with at least one equator so as not to fall easily when the outer circumferential surface of the inlet is inserted into the sewer.

The present invention does not protrude so that foreign substances of sewage or sewage are not laminated to the lower portion of the flange portion on the outlet side, and protrudes a certain length perpendicular to the flange portion only at the upper portion of the flange portion so that foreign substances do not contaminate the opening and closing disk. Characterized in that the inlet prevention portion is provided.

The present invention is characterized in that the inclined inclined portion is formed so that the pipe end portion of the inlet port to the outer circumferential surface becomes smaller.

The present invention, the outlet is characterized in that the opening and closing disk contact portion is formed so that the cross section is smaller toward the end.

As described above, according to the backflow prevention valve for sewage pipe of the present invention, there is an effect that the inlet side is not easily pulled out when inserted into the sewer pipe protruding toward the manhole.

According to the backflow prevention valve for sewage pipe of the present invention, since the lower part of the outlet port is shorter than the opening and closing portion, foreign matter does not accumulate in the lower part of the outlet port, so that the opening and closing disk is closed securely, and the manufacturing cost is reduced due to the reduction of the injection material due to molding. It is effective.

According to the backflow prevention valve for sewage pipe of the present invention, because the thickness of the inlet side is thin, foreign matter is not caught from the inlet side, and the sewage and sewage discharged through the sewer pipe are smoothly discharged.

1 is a perspective view of a non-return valve for sewage pipes according to an embodiment of the present invention,
Fig. 2 is a longitudinal sectional view of Fig. 1,
3 is a perspective view showing a valve body according to an embodiment of the present invention,
4 is a rear perspective view of FIG. 3;
5 is a right side view of FIG. 4.
FIG. 6 is a cross-sectional view taken along the line AA of FIG. 5.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention.

Sewage pipe backflow prevention valve 100 of the present invention, as shown in Figures 1 to 6, the valve body 110 and the outlet 112 and the inlet 113 is formed at both ends of the flange portion 111 boundary and And, the outlet 112 of the valve body 110 includes an opening and closing disk 120 hinged to the hinge portion 130 to open and close.

Here, the valve body fixing part 111a having a hole is formed on the outer circumferential surface of the flange 111 to fix the valve body 110 to the sewer or the manhole with bolts and screws.

In addition, the upper portion of the flange portion 111 is formed with a hole 111b into which the bolt constituting the fastening means 132 of the hinge portion 130 to be described later is formed, and the hinge portion is prevented from being rotated near the hole. The anti-rotation groove 111 c is formed.

And the outer circumferential surface of the inlet 113 is provided with a wedge portion 113a at least a pair of equator so as not to fall easily when the outer circumferential surface of the inlet 113 is inserted into the sewer.

Therefore, when the inlet 113 is inserted into the sewer pipe of the sewer as the inner circumferential surface is easily entered when entering by the wedge portion (113a), but when pulled out is not easily pulled out by the wedge direction of the wedge portion, so the non-return valve prevents the flow back It is possible to further prevent the valve from serving as a valve.

The wedge portion 113a is formed so that the escape groove 113b is formed around the wedge portion 113a so as to be thinner than the outer circumferential surface of the inlet so that the wedge portion elastically flows.

Therefore, the wedge portion 113a flows elastically by the escape groove 113b, so that the valve body 110 of the non-return valve 100 can be easily pushed into the sewer pipe of the sewer. Of course, if the adhesive is applied to the outer circumferential surface of the inlet 113 and inserted into the sewer pipe can be prevented from being disassembled, but maintained without losing the backflow prevention valve 100 in the sewer pipe of the manhole by the wedge (113a) The maintenance became very easy.

The pipe-shaped end portion of the inlet 113 is inclined to form an inclined portion (113c) so that the cross section is small to go to the outer peripheral surface.

Therefore, the sewage discharged from the sewage pipe by the inclined portion 113c or foreign substances in the lower portion is not caught in the inlet 113, so that the flow rate increases during rainy season and the discharge is easy.

In addition, the lower portion of the flange portion 111 on the outlet 112 side does not protrude so that foreign substances of sewage or sewage are not laminated, and a predetermined length is vertically protruded from the upper portion only in the upper portion of the flange portion 111. The foreign matter inflow prevention part 114 is provided so that the opening / closing disc 120 may not be contaminated by falling foreign matter.

That is, the foreign matter inflow prevention part 114 is formed only on the upper portion of the flange portion 111 to prevent the contamination of the opening and closing disk 120 from the top as well as the contamination from the bottom.

The foreign material inflow prevention part 114 has a hinge pin guide groove 114a for guiding the hinge pin 133 of the hinge part 130 to be inserted into a slot or a circular shape.

Therefore, assembling of the hinge pin 133 into the hinge pin guide groove 114a becomes very easy.

The outlet 112 has an opening and closing disk contact portion 112a is formed so that the cross section is smaller toward the end. In addition, the opening and closing disk contact portion 112a may be adjusted by expanding the stepped portion as shown in FIG. 2.

Therefore, since the surface close to the opening and closing disk 120 by the open and close disk contact portion 112a is less contaminants do not adhere to the open and close disk contact portion 112a, the open and close disk close contact with the open and close disk contact portion, so the odor is reversed. It becomes possible to prevent further.

The outlet 112 has an opening and closing slope 112b formed to have a longer length than a top portion in the axial direction.

Therefore, when the opening and closing disk 120 is lowered by its own weight, the adhesion force to the opening and closing slope 112b is further increased to prevent backflow such as smell.

On the other hand, the opening and closing disk 120, as shown in Figure 1 and 2, the disk 121 that is rotatably installed on the hinge portion 130, and close to one surface of the disk is installed in the outlet ( 112 and a fastening member 123 consisting of a bolt and a nut fixing the packing to the disk.

Therefore, the manufacturing of the opening and closing disk 120 is easy.

In addition, the hinge portion 130, as shown in Figure 2, the hinge member 131 is in close contact with the upper portion of the flange 111, fastening made of a bolt and a nut for fixing the hinge member to the flange portion Means 132 and a hinge pin 133 for rotatably coupling the opening and closing disk 120 to the hinge member.

Here, the hinge member 130 may be modified in various forms as necessary, and the fastening means 132 may be modified in various forms.

The embodiments of the present invention described above and shown in the drawings should not be construed as limiting the technical idea of the present invention. The scope of protection of the present invention is limited only by the matters described in the claims, and those skilled in the art will be able to modify the technical idea of the present invention in various forms. Accordingly, such improvements and modifications will fall within the scope of the present invention as long as they are obvious to those skilled in the art.

100: check valve for sewage pipe 110: valve body
111: flange 111a: valve body fixing portion
111b: hole 111c: anti-rotation groove
112: outlet 112a: open and close disk contact portion
112b: opening and closing slope 113: inlet
113a: wedge 113b: escape groove
113c: inclined portion 114: foreign material inflow prevention portion
114a: Hinge pin guide groove 120: Opening and closing disc
121: disc 122: packing
123: fastening member 130: hinge portion
131: hinge member 132: fastening means
133: hinge pin

Claims (4)

In the reverse flow prevention valve for sewage pipes comprising a valve body having an outlet and an inlet formed at both ends of the flange portion, and an opening and closing disk hinged to open and close the outlet of the valve body.
The outer circumferential surface of the inlet 113 is provided with a wedge portion 113a at least one equator so as not to fall easily when the outer circumferential surface of the inlet 113 is inserted into the sewer.
The pipe end portion of the inlet 113 is a slope check valve for the sewage pipes, characterized in that the inclined portion 113c is formed so that the cross section is reduced to the outer circumferential surface. The method of claim 1,
The lower portion of the flange portion 111 of the outlet 112 side does not protrude so that foreign matter of sewage or sewage is not laminated, and foreign substances falling from the upper portion by protruding a predetermined length perpendicular to the flange portion only on the upper portion of the flange portion 111. Backflow prevention valve for sewage pipes, characterized in that the foreign matter inflow prevention unit 114 to block the opening and closing disk 120 to prevent contamination. delete 3. The method according to claim 1 or 2,
The outlet 112 is a reverse flow prevention valve for sewage pipes, characterized in that the opening and closing disk contact portion (112a) is formed so that the cross section becomes smaller toward the end.
KR2020120008201U 2012-09-13 2012-09-13 A check valve for a sewer pipe KR200470846Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2020120008201U KR200470846Y1 (en) 2012-09-13 2012-09-13 A check valve for a sewer pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2020120008201U KR200470846Y1 (en) 2012-09-13 2012-09-13 A check valve for a sewer pipe

Publications (1)

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KR200470846Y1 true KR200470846Y1 (en) 2014-01-16

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KR2020120008201U KR200470846Y1 (en) 2012-09-13 2012-09-13 A check valve for a sewer pipe

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200004661A (en) * 2018-07-04 2020-01-14 허평진 Manhole for flood prevention

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06281032A (en) * 1993-03-24 1994-10-07 Mitsubishi Heavy Ind Ltd Swing check valve
KR19990023048A (en) * 1997-08-27 1999-03-25 오가사와라 도시아끼 Non-return valve
KR20050038308A (en) * 2003-10-21 2005-04-27 최종력 Check valve for a water pipe
KR101159174B1 (en) * 2011-08-17 2012-06-25 정호수 Device for preventing bad smell and backflow of drainage

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06281032A (en) * 1993-03-24 1994-10-07 Mitsubishi Heavy Ind Ltd Swing check valve
KR19990023048A (en) * 1997-08-27 1999-03-25 오가사와라 도시아끼 Non-return valve
KR20050038308A (en) * 2003-10-21 2005-04-27 최종력 Check valve for a water pipe
KR101159174B1 (en) * 2011-08-17 2012-06-25 정호수 Device for preventing bad smell and backflow of drainage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200004661A (en) * 2018-07-04 2020-01-14 허평진 Manhole for flood prevention
KR102145783B1 (en) * 2018-07-04 2020-08-19 허평진 Manhole for flood prevention

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