KR200229390Y1 - A drain flowing backward prevent apparatus of a manhole - Google Patents

Abstract

The present invention relates to a sewage backflow prevention device of a manhole, and more particularly, a sewage backflow prevention device of a manhole of a new configuration that can easily prevent sewage and odor from flowing back into a sewer pipe while easily draining sewage. It is about.

According to the present invention, in the manhole 30 is installed so that the sewage pipe 20 connected to each home or mall is projected by a predetermined length therein, the connection pipe (2) of the form of a single tube coupled to the end of the sewage pipe (20) and It is configured to include an opening and closing plate (4) hinged to be rotated to open and close to the end of the connecting pipe (2), the lower end of the opening and closing plate (4) through the hole to prevent sewage of the sewer pipe 20 Provided is a sewer backflow prevention device of a manhole, characterized in that (10) is formed.

Description

A drain flowing backward prevent apparatus of a manhole}

The present invention relates to a sewage backflow prevention device of a manhole, and more particularly, a sewage backflow prevention device of a manhole of a new configuration that can easily prevent sewage and odor from flowing back into a sewer pipe while easily draining sewage. It is about.

In general, a manhole is for collecting sewage discharged from a home or a shopping mall, rainwater on a road, etc., and sending it to a sewage treatment plant. The manhole is connected to a plurality of sewage pipes connected to each home, a shopping mall, and a water collecting pit of a road. However, the sewage pipe connected to the conventional manhole is not provided with a separate backflow prevention device, so that during heavy rains during the rainy season, the sewage in the manhole flows back through the sewage pipe to contaminate the interior of a building such as a home or a shopping mall, or the odor inside the manhole may be There was a problem to flow back to each home or shopping mall.

The present invention is to solve the problems as described above, the purpose of the present invention is to facilitate the discharge of sewage, but sewage backflow of the manhole of a new configuration that can effectively prevent the sewage or odor inside the manhole backflow into the sewer pipe It is to provide a prevention device.

1 is an exploded perspective view according to an embodiment of the present invention

2 is a perspective view according to the embodiment

Figure 2 is a cross-sectional view of the use state according to the embodiment

<Description of the symbols for the main parts of the drawings>

2. connector 4. switchboard

10. Opening 20. Sewer pipe

30. Manhole

According to the present invention, in the manhole 30 is installed so that the sewage pipe 20 connected to each home or mall is projected by a predetermined length therein, the connection pipe (2) of the form of a single tube coupled to the end of the sewage pipe (20) and It is configured to include an opening and closing plate (4) hinged to be rotated to open and close to the end of the connecting pipe (2), the lower end of the opening and closing plate (4) through the hole to prevent sewage of the sewer pipe 20 Provided is a sewer backflow prevention device of a manhole, characterized in that (10) is formed.

Hereinafter, described with reference to the accompanying drawings, preferred embodiments of the present invention is as follows. 1 and 2 are an exploded perspective view and a perspective view according to an embodiment of the present invention, Figure 3 is a cross-sectional view of the use state according to the embodiment. Referring to this, the sewage backflow prevention device of the manhole is a connecting pipe (2) coupled to the end of the sewage pipe 20 is installed so as to protrude a predetermined length into the manhole (30), and the outside of the end of the connecting pipe (2) It comprises a hinged opening and closing plate (4) to be opened and closed by rotation.

The connecting pipe (2) is made in the form of a single pipe, is attached to the circumferential surface of the end of the sewer pipe 20 protruding a predetermined length into the manhole (30). In addition, the side wall of the connecting pipe (2) is formed with a pin coupling hole (3) for attaching and detaching the opening and closing plate (4).

The opening and closing plate 4 consists of an upper member 7 and a lower member 8. At this time, the upper member 7 is composed of a ring-shaped coupling portion 12 coupled to the circumference of the connecting pipe 2 and a semi-circular plate 16 configured to close the upper portion of the coupling portion 12. At this time, the ring-shaped coupling portion 12 is formed with a pin coupling hole 11 corresponding to the pin coupling hole (3) of the connecting pipe (2) by the predetermined pin 15 to the connecting pipe (2) Is detachably installed. In addition, the lower member (8) is made of a semi-circular shape and is hinged to the lower end of the semi-circular plate (16) of the upper member (7) is configured to open and close only to the outside of the end of the connecting pipe (2), each home or mall The sewage of the back is easily discharged to the manhole 30, on the contrary, the sewage or odor inside the manhole 30 is prevented from flowing back through the sewer pipe. In addition, the lower end of the opening and closing plate 4 is formed with a through-hole 10 to prevent the sewage is not discharged into the manhole 30 through the sewage pipe 20 to the inside of the sewer pipe is formed in the sewage pipe 20 As a result, odors can be prevented from flowing back to the homes or malls. At this time, the through-hole 10 only because it is necessary to prevent the sewage is accumulated in the sewer pipe 20, by limiting the size within a predetermined size that the sewage or odor of the manhole 30 flows back to the sewer pipe 20 through this It is desirable to be able to effectively prevent. In addition, the hinge coupling portion 9 of the upper member 7 and the lower member 8 is preferably provided with a torsion spring 11 so that the sewer pipe 20 can be smoothly closed by the opening and closing plate 4. .

The sewage backflow prevention device of the manhole configured as described above is provided with an opening and closing plate 4 which is rotated to be opened and closed only outside of the connection pipe 2 at the end of the sewage pipe 20 connected to the manhole 30 to discharge the sewage in the sewage pipe 20. Is easily drained to the manhole 30 and the sewage or odor inside the manhole 30 is effectively prevented from flowing back through the sewer pipe (20). In addition, the lower end of the opening and closing plate 2 has the advantage that the through-hole 10 is formed so that the sewage does not remain inside the sewage pipe 20, if only long-term use does not operate smoothly only the opening and closing plate 4 There is an advantage that can be replaced.

As described above, according to the present invention, the sewage backflow prevention device of the manhole is easily drained into the manhole through the sewer pipe and sewage of each home or mall, and sewage or odor inside the manhole does not flow back into the sewer pipe.

Claims (1)

In the manhole 30 is installed so that the sewage pipe 20 connected to each home or shopping mall protrudes a predetermined length into the inside, the connection pipe 2 of the form of a single pipe coupled to the end of the sewage pipe 20, and the connection pipe ( It is configured to include an opening and closing plate (4) hinged to open and close rotationally to the end of the 2), the lower end of the opening and closing plate 4 is formed with a through hole 10 to prevent sewage of the sewer pipe 20 Sewage backflow prevention device of the manhole characterized in that.