KR20170106255A - A Device For Sewer Backflow Prevention - Google Patents

Abstract

The present invention relates to a device to prevent backflow of wastewater, comprising: a first housing installed through an inflow hole where wastewater is collected; a first opening and closing plate installed in a cantilever shape via a hinge on an upward inner portion thereof such that an inlet formed on an upper portion of the first housing is able to be opened and closed; a second housing embedded on a lower portion of the first housing, and formed with a storm overflow chamber with the first housing; and a second opening and closing plate installed in the cantilever shape via the hinge on a lower surface of the second housing, and selectively closing an outlet by wastewater which backflows during raining. The second opening and closing plate is composed of a box shape having a volume to have buoyancy, and the first opening and closing plate includes a buoyancy container. As a height of a buoyancy container is adjusted, the buoyancy container is connected to a connection bar fixated to a lower surface thereof to be able to control an opening range of the first opening and closing plate.

Description

A Device For Sewer Backflow Prevention

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a sewer backflow prevention device that can be easily installed in an existing inflow hole and can enlarge or reduce a sewage inflow treatment capacity of an excellent sewer through two separate housings, The two open / close plates provided at the upper and lower portions of the housing and closed by the buoyancy force are provided in the form of cantilevers through hinges so that even when one of the two open / close plates for closing the first and second wastewater is inoperable, Backflow of the sewage backflow preventing device can improve the reliability of operation.

Generally, on the road, a catchment manhole is provided adjacent to a side where a guardrail and a sidewalk are in contact with a guardrail. In the catchment manhole, a collecting manhole usually made of a plastic material is provided. Steel grating is installed.

However, when the sewage manhole suddenly increases due to the heavy rain or other external conditions, the sewage flowing into the manhole through the steel grating can not flow along the sewer pipe, There is a problem that electric vehicles or vehicles moving on roads can cause accidents.

To overcome such a problem, the "Manhole reflux prevention facility structure of the road: Korean Patent Registration No. 10-0614939" has been proposed.

However, in the conventional manhole reflux prevention structure, the connection structure of the buoyancy cutoff device has a connection structure of the rotary shaft, which is very difficult to install, and there is always a risk of malfunction due to foreign matter.

In addition, the conventional manhole backflow prevention structure is installed only in the manhole, and it is difficult to install the existing manhole or manhole, or the storage tank for collecting rain water or rainwater, .

In addition, the conventional manhole backflow prevention structure has a problem in that the operation reliability is poor since there is no apparatus that can avoid reverse flow during a malfunction.

Korean Patent Registration No. 10-0614939

SUMMARY OF THE INVENTION The present invention has been accomplished in view of the above-described problems, and it is a first object of the present invention to provide a hinged lid which is installed on upper and lower portions of a housing constituting an excellent toil, And prevents the backwash of the wastewater even when any one of the two open / close plates for closing the first and second wastewater can not be operated, thereby improving the reliability of the operation.

A second object of the present invention is to provide a sewer backflow prevention device that can be easily installed in accordance with a slope when there is a slope of the ground.

According to an aspect of the present invention, there is provided a sewage backflow prevention apparatus comprising: a first housing inserted into an inflow hole for collecting sewage; A first opening and closing plate installed in the form of a cantilever through a hinge in an upward direction so as to be able to open and close an inlet formed at an upper portion of the housing, a second housing provided in the lower portion of the first housing to form a first housing and an excellent toil; And a second opening and closing plate installed in the form of a cantilever via a hinge on the bottom surface of the second housing and selectively closing the outlet by the wastewater flowing backward in a rainy period, And the first opening / closing plate has a buoyancy barrel, and the height of the buoyancy barrel is adjusted to adjust the opening degree of the first opening / closing plate It characterized in that the connecting bar fixed to the connection surface.

The second invention is characterized in that, in the first invention, the bottom surface of the second housing further comprises a stopper for supporting the opening angle of the second opening / closing plate.

The third invention is characterized in that, in the first invention, the first housing is horizontally fixed to the ground by the "a"

The fourth invention is characterized in that, in the first invention or the third invention, the second housing is further coupled with a supporting means whose height is adjusted according to the depth of the inflow hole.

A fifth invention is characterized in that, in the first invention, the sewer backflow prevention device is constructed so as to be able to be maintained and metered by being spoken to the inspection port.

A sixth invention is characterized in that, in the first invention, the upper surface of the first housing is further provided with a fixing plate and a flow control plate whose position is changed from the upper portion of the fixing plate so as to control the cross section of the inlet port.

The seventh invention is characterized in that, in the first invention, a steel grating for filtering contaminants is further coupled to the upper surface of the first housing, and the steel grating is constituted in a "dome" form in order to prevent accumulation of contaminants .

The eighth invention is characterized in that, in the seventh invention, the steel grating is spaced apart from the first housing by a screwing-type height adjusting means so that the height can be adjusted.

According to the sewage backflow prevention apparatus of the present invention, there is an effect that the waste water inflow treatment capacity of the excellent toil can be enlarged or reduced through two separate housings.

Further, by providing two opening / closing plates in the form of a cantilever through a hinge, it is possible to prevent the reverse flow of the wastewater even when any one of the two open / close plates for closing the first and second wastewater can not be operated, thereby improving the reliability of operation There is an effect that can be.

In addition, by providing a hinge for the two opening / closing plates, it is possible to eliminate the existing rotary shaft and the bearing provided on the opening / closing plate, and to improve the durability.

Also, when there is a slope on the ground, it is possible to easily install the sewer backflow prevention device in accordance with the inclination.

FIG. 1 and FIG. 2 are diagrams showing the construction of a sewer backflow prevention device according to the first embodiment of the present invention,
3 to 4 are operation diagrams of a sewer backflow prevention device according to the first embodiment of the present invention,
5 and 6 are block diagrams of a sewer backflow prevention apparatus according to a second embodiment of the present invention.

While the present invention has been described in connection with certain exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and similarities. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

In the following description of the present invention, detailed description of known related arts will be omitted when it is determined that the gist of the present invention may be unnecessarily obscured. In addition, numerals (e.g., first, second, etc.) used in the description of the present invention are merely an identifier for distinguishing one component from another.

Also, in this specification, when an element is referred to as being "coupled "," connected ", or "connected" with another element, the element is directly connected to the other element, Or may be directly bonded, but it should be understood that, unless otherwise specifically contradictory, there may be intervening, interlinked, or connected via another element in the middle.

Hereinafter, a sewer backflow prevention apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

1 and 2 are block diagrams of a sewer backflow prevention apparatus according to a first embodiment of the present invention.

1 and 2, the present invention provides a sewer backflow prevention device that can be easily installed in an existing inflow hole and configured to enlarge or reduce a sewage inflow treatment capacity of an excellent toilet through two separate housings, .

Also, in the sewer backflow prevention device of the first embodiment, two open / close plates provided on the upper and lower portions of the housing constituting the superior toe and closed by buoyancy are provided in the form of cantilevers through hinges, Can be eliminated.

In addition, the inlet hole 100 referred to in the present invention may be any one of existing concrete excellent toilets or manholes formed in the low and high storey boxes, or an inlet of a storage tank for collecting sewage or rainwater.

The sewage backflow prevention device of the first embodiment is largely composed of two parts, which are composed of a housing and an opening / closing plate.

Here, the first housing 10 is divided into two as a housing, and the first housing 10 is inserted into the inlet hole 100 for collecting wastewater.

The size of the first housing 10 is limited to a standard size and the size of the first housing 10 is limited to the size of the first housing 10 and the second housing 30 formed in the lower portion of the first housing 10, It is possible to enlarge or reduce the sewage inflow treatment capacity by varying the size.

In addition, the first housing 10 is provided with a structure that can be fixed horizontally on the ground by the "A" angles 14 coupled to both sides.

The first opening and closing plate 20 is installed in the form of a cantilever through a hinge H in an upward direction so as to open and close the inlet 11 formed in the upper portion of the first housing 10.

It is needless to say that the first opening and closing plate 20 can be formed in two so that the first opening and closing plate 20 can be opened and closed in both directions.

The first opening and closing plate 20 is always opened by its own weight, but is configured to be closed by buoyancy when it rains.

The first opening and closing plate 20 is provided with a buoyancy tube 22 so that the buoyancy tube 22 can be adjusted in height to control the degree of opening of the first opening and closing plate 20, 20 connected to the connecting bar 21 fixed to the bottom surface of the connecting rod.

That is, if the distance between the first opening / closing plate 20 and the buoyancy passage 22 is increased, the opening degree of the first opening / closing plate 20 becomes smaller with respect to the inlet opening 11, 22 is narrowed, the degree of opening of the first opening and closing plate 20 becomes larger with respect to the inlet, and the inflow capacity of the wastewater can be increased.

The second opening and closing plate 40 is also installed in the form of a cantilever through a hinge H on the bottom surface of the second housing 30 so that the discharge opening 31 can be selectively closed by the wastewater flowing backward from the sub- .

At this time, the second housing 30 further includes a stopper 32 for supporting the opening angle of the second opening / closing plate 40 on the bottom surface thereof. This is a configuration that can prevent the wastewater containing rainwater from being suddenly flown back to the discharge port 31 from the secondary collector when raining.

On the other hand, the second open / close board 40 may be configured as a box having a volume so as to have buoyancy. This configuration is such that the second opening and closing plate 40 is integrated with the function of the buoyancy bar, thereby simplifying the apparatus and increasing the durability.

In addition, a steel grating 70 for filtering contaminants is further coupled to the upper surface of the first housing 10.

The steel grating 70 is formed in a "dome" shape in order to prevent clogs from accumulating, thereby preventing clogging of the sewage due to the clogging.

The steel grating 70 may also be hinged to the upper portion of the first housing 10 by a hinge H so as to open.

Hereinafter, the operation of the sewer backflow prevention device according to the first embodiment of the present invention will be briefly described.

3 to 4 are operation diagrams of the sewer backflow prevention device according to the first embodiment of the present invention.

First, as shown in Fig. 3, the first open / close plate 20, which is usually opened by its own weight, and the second open / close plate 40 collect the sewage water automatically by the second container.

As shown in Fig. 4 (a), buoyancy is generated in the second open / close plate 40 by the wastewater flowing backward from the secondary collector at the time of rainstorm, thereby closing the discharge port 31. [

As shown in FIG. 4 (b), at the time of rains, the first open / close plate 20 is closed by the backwash from the second take-and-off pipe and the second open / close plate 40 is buoyant to generate buoyancy.

At this time, even if the second open / close board 40 and the discharge port 31 are not in close contact with each other due to the water flow and vortex generated in the sub-collector pipe, a part of the wastewater flowing into the excellent toilette 50 flows into the first open / The inlet port 11 is secondarily closed by the connected buoyancy tank 22 to completely block the reverse flow of the wastewater.

In the present invention, it is possible to prevent reverse flow of wastewater even when any one of the two opening / closing plates 20, 40 that can primarily and secondly close the wastewater can not operate, thereby improving the reliability of operation.

5 and 6 are block diagrams of a sewer backflow prevention apparatus according to a second embodiment of the present invention.

As shown in Figs. 5 and 6, the second embodiment includes the first embodiment, and relates to a sewer backflow prevention device that can be installed in accordance with a tilt when there is a slope of the ground surface.

The second housing 30 of the sewer backflow prevention device of the second embodiment is constructed by further coupling the supporting means 60 whose height is adjusted according to the depth of the inlet hole 100.

The supporting means 60 is composed of a fixed tube body 61 fixed to the bottom of the housing 10 and 30 and a supporting rod 62 screwed to the fixed tube body 61, The housing 10 and 30 can be tilted to the ground by adjusting the depth.

In this case, the steel grating 70 is also spaced apart from the first housing 10 by a screw-type height adjusting means 80 so that the height can be adjusted.

The height adjusting means 80 integrally joins the nut 81 to the steel grating 70 and rotates the rotary screw 82 in a state where the rotary screw 82 is screwed to the nut 81 So that the steel grating 70 can be lifted up and away from the first housing 10 as a whole.

On the other hand, the sewer backflow prevention device of the second embodiment is constructed so as to be able to perform maintenance and meter reading by being addressed to the inspection port 90.

At this time, the inspection port 90 is closed through the cover 91, and the cover 90 is opened at the time of internal inspection or dredging the inside of the fine toilet 50 so that the manager can enter the inflow hole 100 Lt; / RTI >

The second embodiment differs from the first embodiment in that the first housing 10 further has a fixing plate 12 and a flow control plate 13 whose position is changed from the upper portion of the fixing plate 12 to further connect the flow- As shown in FIG.

In the second embodiment, since the supporting means 60 is provided on the bottom surface of the second housing 30, the second opening / closing plate 40 can be disposed at the edge of the second housing 30.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined by the appended claims. It is obvious that you can do.

10: first housing 11: inlet 12: fixed plate
13: Flow control plate 14: Angle
20: first open / close plate 21: connecting bar 22:
30: second housing 31: outlet 32: stopper
40: second open / close plate
50: Outstanding toys
60: Support means 61: Fixing tube 62:
70: Steel grating
80: height adjusting means 81: nut 82: rotating screw
90: check port 91: cover
100: inlet hole H: hinge

Claims (8)

A first housing (10) inserted into the inlet hole (100) for collecting wastewater;
A first opening and closing plate 20 installed in the form of a cantilever through a hinge H in an upward direction so as to open and close the inlet 11 formed in the upper portion of the first housing 10;
A second housing 30 which is provided at a lower portion of the first housing 10 to form a first housing 10 and a second housing 50;
And a second opening and closing plate 40 installed in the form of a cantilever via a hinge H on the bottom surface of the second housing 30 to selectively close the outlet 31 by the wastewater flowing backward in the rain But,
The second open / close plate 40 is formed in a box shape having a volume so as to have buoyancy,
The first opening and closing plate 20 has a buoyancy tube 22 and the buoyancy tube 22 is connected to a connecting bar 22 fixed to the bottom surface of the buoyancy tank 22 to adjust the opening degree of the first opening / 21). ≪ / RTI >
The method according to claim 1,
Wherein the second housing (30) further comprises a stopper (32) for supporting an opening angle of the second opening / closing plate (40).
The method according to claim 1,
Wherein the first housing (10) is horizontally fixed to the ground by an "a " angle (14) coupled to both sides of the first housing (10).
The method according to claim 1 or 3,
Wherein the second housing (30) is further coupled with a support means (60) whose height is adjusted according to the depth of the inlet hole (100).
The method according to claim 1,
Wherein the sewer backflow prevention device is connected to the inspection port (90) to perform maintenance and inspection.
The method according to claim 1,
A fixing plate 12 and a flow rate regulating plate 13 whose position is changed from the upper portion of the fixing plate 12 are further coupled to the upper surface of the first housing 10 so as to control the flow passage of the inlet port 11 Features a sewage backflow prevention device.
The method according to claim 1,
The upper surface of the first housing 10 is further coupled with a steel grating 70 for filtering contaminants. The steel grating 70 is formed in a "dome" shape to prevent accumulation of contaminants A device for preventing reverse flow of sewage.
8. The method of claim 7,
Characterized in that the steel grating (70) is spaced apart from the first housing (10) by means of a screwing height adjusting means (80) so as to adjust the height thereof.

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