KR200310121Y1 - Bed smell and flowing backward prevention device of drain pipe - Google Patents

Abstract

The present invention relates to a device for preventing odors and backflow of sewage pipes, and an object thereof is to prevent odors in the sewer pipes from escaping into the atmosphere and to effectively prevent backflow of sewage during the rainy season.

According to the odor and backflow prevention device 30 of the sewage pipe according to the present invention for this purpose; Odors in the sewage pipe 20 are in the air, including a main body 31 which is freely embedded at the inlet of the sewer pipe 20 associated with the manhole 10 and a cover 32 which opens and closes the rear part of the main body 31. As well as leaking, there is an effect that can prevent the sewage backflow at the source. In addition, there is an advantage that the main body 31 can be installed firmly and easily at the inlet of the sewer pipe 20 through the bolt 34 or the screw.

Description

Odor and backflow prevention device of sewage pipe {BED SMELL AND FLOWING BACKWARD PREVENTION DEVICE OF DRAIN PIPE}

The present invention relates to a odor and backflow prevention device of the sewage pipe, and more particularly, it is installed at the inlet of the sewage pipe connected to the manhole, and the odor and leak of the sewage pipe which can prevent the odor leaking into the air and the backflow phenomenon in the rainy season. It relates to a prevention device.

In general, manholes are buried in areas where roads and sewage are collected to collect and discharge rainwater and domestic sewage, and the upper part of the manholes prevents large-sized dirt from entering the manholes. STEEL GRATING is installed in parallel with the lid function. In addition, a sewer pipe is connected to the bottom of the manhole, which is usually associated with a river.

Accordingly, the rainwater or living sewage flowing along the roadside is collected in the manhole and continues to flow through the sewer pipes buried underground.

However, in such a sewage and rainwater discharge structure, there is a problem that odors generated in manholes and sewer pipes normally enter the atmosphere through the upper part of the manhole without rainwater inflow and contaminate the air, resulting in poor living environment. In addition, during the rainy season, due to flooding of rivers, the sewage flows back through the sewer pipes and manholes, which frequently increases the damage.

The present invention is to solve this problem, the purpose of the present invention is to prevent the odor in the sewer pipe associated with the manhole to escape into the atmosphere and at the same time to prevent the odor and backflow of the sewage pipe to prevent the sewage backflow in the rainy season To provide.

In addition, another object of the present invention is to provide a odor and backflow prevention device of the sewage pipe that can be easily and reliably installed at the inlet portion of the sewage pipe.

1 schematically shows a sewer pipe inlet structure of the manhole to which the present invention is applied.

2 is a side view of the malodor and backflow prevention device according to the present invention.

Figure 3 is an exploded perspective view of the malodor and backflow prevention device in the present invention.

4 and 5 show the operation state of the odor and backflow prevention apparatus according to the present invention.

* Description of the symbols for the main parts of the drawings *

10..manhole 20..sewer

30. Bad smell and backflow prevention device

32. Cover 33. Outward flange

35..Rib

The present invention for achieving this purpose,

In the odor and backflow prevention device of the sewer pipe is installed in the inlet of the sewer pipe connected to the manhole to prevent odor and backflow,

Odor and backflow prevention device is formed in a tubular shape with the front and rear open, and is built into the inlet part of the sewage pipe, and is hinged to the upper part of the rear end of the main body to open and close the rear part of the main body by sewage flowing in the main body. It is characterized in that it comprises a cover that is open and closed by its own weight if the sewage does not flow.

In addition, the front portion of the main body is provided with an outward flange to extend to the outside of the inlet of the sewage pipe, the outward flange is characterized in that the bolt fastening hole for fixing the main body is perforated.

In addition, the rear of the main body is gradually inclined downward downward in the direction of the flow of sewage from the top, the cover is in contact with the rear edge of the main body in the closing operation and is characterized by consisting of a curved plate so as not to interfere with the inner wall of the sewer pipe during the opening operation. do.

In addition, the outer peripheral surface of the main body is characterized in that a plurality of ribs are integrally formed in the longitudinal direction to reinforce rigidity.

According to such a structure, the odor in a sewage pipe can leak out to air | atmosphere through a manhole, and a sewage backflow can be prevented, and it can be installed easily in the inlet part of a sewage pipe.

Hereinafter, one preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

Referring to Figure 1, the sewage pipe 20 to which the present invention is applied is disposed in communication with the bottom of the manhole 10 for collecting sewage and rainwater primarily, there is a odor and backflow prevention device 30 according to the present invention Is installed.

The manhole 10 is disposed on a roadside to discharge and collect sewage and rainwater, and a steel grating 11 is disposed at an upper portion thereof so that rainwater easily flows in.

And odor and backflow prevention device 30 is installed at the inlet of the sewage pipe 20 to prevent backflow due to the flooding of odor and rainy season water in the sewage pipe 20, which is embedded in the inlet of the sewage pipe 20 with ease The main body 31 and the cover 32 is hinged to the upper rear end of the main body 31 to open and close the rear portion of the main body 31, the detailed structure thereof is as follows.

2 and 3, the main body 31 is injection-molded through the synthetic resin in a cylindrical shape of the front rear, the outward flange 33 is provided at its front portion to extend outside the inlet of the sewage pipe 20. do. The outward flange 33 is provided with a plurality of bolted fastening holes 33a for fixing the main body 31 to the inlet of the sewer pipe 20. Therefore, when the main body 31 is inserted into the inlet portion of the sewer pipe 20 and the bolts 34 (or screws) are tightened to the bolt fastening holes 33 of the outward flange 33, the odor and backflow prevention device 30 is Easy to install In addition, the rear of the main body 31 is a portion that is opened and closed through the cover 32, and is gradually inclined downward in the direction from which the sewage flows.

And the outer circumferential lower surface of the main body 31 is provided with a plurality of ribs 35 (rib) protrude in the longitudinal direction for its rigid reinforcement. These ribs 35 are integrally injection molded to maintain a constant distance on the outer surface of the body 31. In addition, the height of the ribs 35 is preferably configured so as not to interfere in the process of inserting the main body 31 into the sewer pipe (20).

On the other hand, the cover 32 is to open and close the rear portion of the main body 31 as described above, for this purpose, a pair of brackets 36 in which the shaft coupling hole 36a is perforated at the upper end of the main body 31 is provided. It is provided opposite. And the end of the cover 32 is provided with a hinge shaft 37 coupled between the pair of brackets 36, the cover 32 is the vertical direction around the hinge shaft 37 (see the arrow direction in Figure 2) Assembled so that it can rotate.

The cover 32 is also injection-molded with synthetic resin, it is made of a curved plate (접 面 시) so as not to interfere with the inner wall of the sewage pipe 20 in contact with the rear edge of the main body 31 during the closing operation.

As a result, when the cover 32 descends downward due to its own weight, it is brought into contact with the rear edge of the main body 31. As a result, the lid 32 is free to rotate in the upward direction when the sewage exits normally in the closed state, but the rotation of the cover 32 in the reverse direction of the sewage flow is restricted.

Next will be described the operation and effects of the odor and backflow prevention device according to the present invention configured as described above.

First, when the sewage does not flow, the cover 32 is lowered by its own weight, and the inlet portion of the sewage pipe 20 is closed (see FIG. 1). In this state, when living sewage or a large amount of rainwater (hereinafter referred to as sewage) flows into the manhole 10, this flows into the sewage pipe 20 through the front part of the main body 31, as shown in FIG. 4. I'm going.

In this case, the cover 32 is rotated upward by the sewage flowing into the main body 31 and the inlet of the sewage pipe 20 is opened, whereby the sewage is smoothly discharged through the sewage pipe 20. At this time, the cover 32 has a larger rotation angle as the amount of sewage flowing therethrough, so that the sewage is smoothly discharged.

And when the sewage is no longer introduced into the main body 31, the cover 32 closes the rear of the main body 31 while rotating downward by its own weight. At this time, since the lid 32 is kept in contact with the rear edge of the main body 31, the odor in the sewer pipe 20 is completely prevented from leaking out through the manhole 10.

In addition, as shown in FIG. 5, the sewage may flow back through the sewage pipe 20 due to the flooding of the rainy season river, and the cover 32 according to the present invention is rearward of the main body 31 by the force of the sewage backflow. It is kept in close contact with the. As a result, sewage backflow can be completely prevented and the rainy season damage can be significantly reduced. At this time, since the cover 32 is made of a curved plate, the load received from the reverse flow sewage in the sewage pipe 20 is distributed along the curved surface to prevent its damage.

As described in detail above, according to the odor and backflow prevention device of the sewage pipe according to the present invention, the odor in the sewage pipe, including a main body that is leisurely embedded in the inlet of the sewer pipe associated with the manhole, and a cover for opening and closing the rear portion of the main body As well as leaking into the atmosphere, there is an effect that can prevent the sewage backflow at the source. In addition, there is an advantage that the body can be installed firmly and easily at the inlet of the sewage pipe through the bolt or screw.

Claims (4)

In the inlet of the sewage pipe 20 associated with the manhole (10) in the odor and backflow prevention device of the sewage pipe to prevent odor and backflow, The odor and backflow prevention device 30, The main body 31 is made of a tubular shape in which the front and rear are opened, and is built in the inlet portion of the sewer pipe 20, The lid 32 is hinged to an upper portion of the rear end of the main body 31 to open and close the rear part of the main body 31, and is opened by sewage flowing in the main body 31 and closed by its own weight when the sewage does not flow. Odor and backflow prevention device of the sewage pipe, characterized in that it comprises a). The method of claim 1, An outward flange 33 is provided at the front portion of the main body 31 to extend outside the inlet of the sewer pipe 20. The outflow flange 33 is a bolt fastening hole (33a) for fixing the main body 31 is perforated, odor and backflow prevention device of the sewer pipe. The method of claim 1, The rear of the main body 31 is gradually inclined downward in the direction in which the sewage flows from the top, The cover 32 is in contact with the rear edge of the main body 31 in the closing operation and the odor and backflow prevention device of the sewage pipe, characterized in that made of a curved plate so as not to interfere with the inner wall of the sewage pipe 20 during the opening operation . The method of claim 1, Odor and backflow prevention device of the sewer pipe, characterized in that the plurality of ribs 35 are integrally formed in the longitudinal direction on the outer peripheral lower surface of the main body 31 to reinforce rigidity.