RU2341622C2 - Device for soil ingress protection in storm drain - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: device for soil ingress protection in storm drain includes turning shaft and closing plate to be opened at an angle. Closing plate is intended for drain inlet opening and closing depending on the drain water amount. It also includes at least one opening restrictor, one aligning restrictor and one weight element located on the bottom surface and rear side of opening/closing plate to be opened at an angle.

EFFECT: improved effectiveness of soil ingress protection device operation in storm drain.

13 cl, 12 dwg

Description

This invention relates to a device for preventing soil leakage for use in a storm sewer collector, in particular, to a device for preventing soil from entering a storm sewer collector made in a drainage ditch when there is excess wastewater, i.e. rainwater enters the drainage ditch due to rainfall.

The concept of a drainage ditch refers generally to a passage for collecting and discharging large volumes of wastewater. In this case, wastewater means wastewater containing rainwater. The outlet side of the drainage ditch is usually connected to the river.

As is known from the prior art, such a drainage ditch is provided on its outlet side with a storm sewer collector that directs wastewater coming from the drainage ditch to a wastewater treatment plant for the purpose of treating them. The drainage ditch is also equipped with a structure of barrier walls having a predetermined height in front of the storm sewer collector. The structure of the barrier walls serves to prevent the entry of soil contained in wastewater into the storm sewer collector and the filtration of other waste.

The storm sewer collector is located transversely under the longitudinal drainage ditch and has an upper hole that is formed in the bottom of the drainage ditch for passing along the width of the drainage ditch. The upper hole is divided into sections by using a plurality of longitudinal rods, and the plurality of intercepting plates are located at a predetermined distance from each other. Thus, between the intercepting plates, a plurality of sewage inlets are formed, each of which is defined on its opposite sides by longitudinal rods.

The structure of the barrier walls includes several walls to prevent leakage of soil and shields located between the walls, to ensure that other waste contained in wastewater, with the exception of soil, gets into the storm sewer.

However, a conventional drainage ditch having the above configuration has the disadvantage that when the amount of wastewater increases excessively due to rainfall, the soil flows over the structure of the barrier walls and enters the storm sewer. As a result, the soil is collected in the storm sewer collector, which leads to a decrease in the cross section of the storm sewer collector available for drainage. In addition, the soil entering the wastewater treatment plant reduces the cleaning efficiency of the wastewater treatment plant.

To eliminate the above disadvantages, various conventional devices are known to prevent soil leakage, to prevent soil from entering the storm sewer collector during a shower. The following are a few examples of conventional soil leakage prevention devices.

Firstly, there is known a device for preventing soil leakage (referred to hereinafter as “the first conventional device for preventing soil leakage”), disclosed in the registered application for utility model of Korea No. 1999-18530.

The first conventional soil leakage prevention device comprises: a frame plate rotatably connected to one of the sewage inlet openings that are formed at the top of the storm sewer collector using a rear fixing shaft to open and close the opening for the sewage inlet stream; wastewater inlet perforated in a frame plate; a support located in the storm sewer collector under the wastewater inlet; a spring device located between the front of the frame plate and the support; and a soil leakage prevention plate mounted under the frame plate and intended to close the wastewater inlet when the frame plate closes the wastewater inflow opening.

Under normal conditions, the front of the frame plate is tilted forward by using the elastic buoyancy of the spring device, so that the wastewater passes through the wastewater inlet located at a downwardly inclined back of the frame plate with a constant flow rate for directing the wastewater treatment plant through the storm collector sewers. However, if the amount of wastewater flow increases excessively due to rain, the frame plate is lowered to take a horizontal position and the wastewater inlet is closed by a horizontal frame plate. Due to this, the first conventional device for preventing soil leakage, having the above configuration, allows you to dump the soil contained in rainwater directly into the river, without entering the collector of storm sewers.

In the case of the first conventional device for preventing soil inflow, the frame plate is configured to open and close using the elastic buoyancy force of the spring device. However, this configuration has the disadvantage that the soil leakage prevention device does not work properly when the spring device loses restoring force after prolonged use.

In addition, since the spring device is located in the storm sewer and inevitably always comes into contact with wastewater, there is the disadvantage that the spring easily rusts in a short time.

To eliminate this drawback, a known soil inflow prevention device (hereinafter referred to as the second conventional soil inflow prevention device), such as that disclosed in Korean Utility Model Application No. 2001-1706, is used.

A second conventional soil inflow prevention device comprises: a support formed at the periphery of a sewage inlet of a storm sewer; and a frame plate located in front of the tilt support around the pivot shaft.

In a second conventional soil inflow prevention apparatus having the above configuration, under normal conditions, the frame plate is tilted so that its rear portion is lowered. Due to this, the wastewater can pass into the storm sewer collector with a constant flow rate and can be sent to the wastewater treatment plant. However, if the flow rate increases excessively due to rainfall, then the front of the frame plate is pushed down until the frame plate is horizontal. As a result, the soil contained in rainwater is discharged directly into the river, without entering the storm sewer collector.

As shown in FIG. 12, when the flow rate of the wastewater is constant, the frame plate 30 of the second conventional soil inflow prevention device is tilted around the pivot axis 20 to open the rear zone of the wastewater inlet, as shown by a solid line.

However, if the amount of wastewater flow increases due to rainfall, the excess wastewater collides with the lowered part of the frame plate 20 and quickly enters the sewer collector 10. Thus, the frame plate 20 is quickly rotated to maintain a substantially vertical position, as depicted by the dot-dash line.

After the sewage collector is completely filled with wastewater, excess wastewater pushes the raised portion of the frame plate 30 when it flows over the wastewater inlet. As a result, the frame plate is held in a horizontal position after a short time from the moment the amount of wastewater increases, thereby closing the wastewater inlet.

The disadvantage of this configuration is that the soil enters the collector 10 of storm water drainage together with wastewater at the beginning of the inflow of wastewater.

Therefore, this invention is made taking into account the above disadvantages and the object of the present invention is to provide a device for preventing soil inflow, in which the opening / closing plate rotated at an angle is made to tilt inside a predetermined angle due to opening limiters to prevent excessive lowering of the rear part of the opening / closing slabs at the beginning of an increase in the flow of wastewater due to rainfall, which prevents the soil from entering the sewer collector at the beginning of the inflow of waste water.

Another object of the present invention is to provide a device for preventing soil inflow, in which an opening / closing plate rotated at an angle is actuated to open a sewage inlet for a storm sewer collector only by the weight of the waste water.

Another objective of the present invention is to provide a device for preventing soil inflow, in which the rotary shaft is installed in a position near the front end of the opening / closing plate that is rotated at an angle, instead of being installed along the central axis of the opening / closing plate, due to which the rear part of the angle of rotation of the opening / closing plate / cover plate is heavier than its front part to ensure smooth flow of wastewater into the storm sewer collector under normal conditions.

Another objective of the present invention is to provide a device for preventing soil inflow, in which at least one adjustable or interchangeable weighting device is provided at the rear of an opening / closing plate that is rotated at an angle, with which it is possible to adjust the closing force of an opening / closing that is rotated at an angle plates in response to a change in the amount of wastewater due to rainfall, while the back of the opening / closing plate rotated at an angle is tilted down to opening the back of the wastewater inlet under normal conditions.

Another objective of this invention is to provide a device for preventing leakage of soil, in which the bearings are installed not only at opposite ends of the rotary shaft, but also at the junctions between the rotary shaft and the opening / closing plate rotated at an angle, whereby the opening / turning plate the cover plate can respond smoothly and sensitively to changes in the amount of wastewater.

According to one aspect of the present invention, the above and other objectives can be achieved by creating a device for preventing soil leakage for use in a storm sewer collector, which is made on the drain side of the drainage ditch and has one or more wastewater inlets, the device comprising: a shaft extending across the corresponding wastewater inlet; an opening / closing plate rotated at an angle, connected to the rotary shaft and intended to open and close the inlet for wastewater in accordance with the amount of wastewater; at least one opening stopper made at the periphery of the wastewater inlet behind the rotary shaft or at the rear wall of the storm sewer to control the opening angle of the opening / closing plate that is rotated at an angle; and at least one leveling stop located on the periphery of the wastewater inlet in front of or behind the pivot shaft to hold the opening / closing plate rotated at an angle in the closed position.

For a better understanding of the above and other objectives, features and advantages of the present invention, a detailed description is given below with reference to the accompanying drawings, which show:

figure 1 - drainage ditch having a device for preventing leakage of soil, according to the first embodiment of the present invention, in isometric view;

figure 2 - device for preventing leakage of soil according to the first embodiment of the present invention, on an enlarged scale in an isometric view;

figure 3 is a section along the line aa in figure 2, on an enlarged scale;

figure 4 is a section along the line bb in figure 3;

5 is a sectional view of a device for preventing soil inflow according to a first embodiment of the present invention;

6 is a sectional view of an alternative configuration of an equalizing limiter according to this invention;

7 is a sectional view of another alternative configuration of an equalizing stop according to the invention;

Fig. 8 is a sectional view of a device for preventing soil inflow according to a second embodiment of the present invention;

Fig.9 is a sectional view of alternative configurations of the front and rear weighting devices according to this invention;

figure 10 is a section of a device for preventing leakage of soil according to a third embodiment of the present invention;

11 is a sectional view of a device for preventing soil inflow according to a fourth embodiment of the present invention; and

12 is a sectional view of a conventional soil leakage prevention device.

The following is a description of preferred embodiments of the invention with reference to the accompanying drawings.

Figure 1 shows an isometric view of a drainage ditch having a device for preventing soil leakage, according to a first embodiment of the present invention. FIG. 2 shows an isometric view on an enlarged scale of a device for preventing soil leakage according to a first embodiment of the present invention. Figure 3 shows an enlarged scale section along the line aa in figure 2.

The soil inflow prevention device according to the present invention is intended for use on a storm sewer 2, which is located on the outlet side of the drainage ditch 1 and has one or more sewage inlets 21. Namely, the soil inflow prevention device serves to prevent soil from entering the inlets 21 together with rainwater. Wastewater inlets 21 are formed on the open top of the storm sewer 2 at a predetermined distance from each other. To form the sewage inlets 21, a plurality of longitudinal rods are spaced apart from each other across the open top of the storm sewer 2, and a plurality of interception plates 22 are laid between the longitudinal rods, while the remaining spaces form the sewage inlets 21. Therefore, the periphery of each wastewater inlet 21 consists of a pair of longitudinal rods located on opposite sides of the wastewater inlet 21 and the upper edges of the front and rear walls constituting the storm sewer 2. Below is no longer a detailed description of the inlet 21 for wastewater or the periphery of the inlet 21 for wastewater. In addition, the following description refers to only one wastewater inlet 21, since all wastewater inlets 21 are identical.

A device for preventing leakage of soil according to the present invention for use in a sewage inlet 21 of a storm sewer 2 includes: a rotary shaft 3 extending across the width of the sewage inlet 21; an opening / closing plate 4, which is rotated at an angle, connected to the rotary shaft 3, for opening and closing the wastewater inlet 21 in accordance with the amount of wastewater; at least one opening stop 5 located on the periphery of the wastewater inlet 21 behind the pivot shaft 3 or at the rear wall of the storm sewer 2 to control the opening angle of the opening / closing plate 4, which is rotated at an angle; at least one leveling limiter 6 located on the periphery of the wastewater inlet 21 in front of or behind the rotary shaft 3 for holding the opening / closing plate 4, which is rotated at an angle, in the closed position.

The rotary shaft 3 is attached to the open / close plate 4, which is rotated at an angle along the longitudinal central axis of the open / close plate 4, by means of connecting means 31, so that the rear part of the open / close plate 4, which is rotated at an angle, is centrally attached to the rotary shaft 3, can bend down only under the influence of the weight of the flowing wastewater, to open the inlet 21 for wastewater. As shown in the accompanying drawings, in a first embodiment of the invention, at least one rear weighting device 7 is additionally used.

In addition, the wastewater inlet 21 is provided at its periphery with a metal frame 211 having a high strength sufficient to support the rotary shaft 3 and rotated at an angle of the opening / closing plate 4.

The leveling limiter 6 has the form of a recessed portion 61, which is formed at the front end of the periphery of the wastewater inlet 21 for receiving the front part of the opening / closing plate 4, which is rotated at an angle.

The rear weighting device 7 is suspended from the lower surface of the back of the angle-opening / closing plate 4 for adjusting the closing force of the angle-opening / closing plate 4 in accordance with the amount of waste water. The rear weighting device 7 is installed with the possibility of replacement by means of connecting means, such as loops, to increase or decrease its weight, depending on the circumstances.

Under normal conditions, the rear weighting device 7 pulls down the back of the open / close plate 4, which is rotated at an angle, thereby opening the rear area of the sewage inlet 21.

Figure 4 shows a section along the line BB in figure 3. As shown in figure 4, a pair of bearings 32 is located between the opposite ends of the rotary shaft 3 and opposite sides of the inlet 21 for waste water, respectively, to ensure smooth rotation of the rotary shaft 3.

The connecting means 31 includes one or more brackets 311 for bearings attached to the lower surface of the open / close plate 4, which are rotated at an angle, and bearings 312 provided in the brackets 311 for bearings, respectively. The rotary shaft 3 passes through the bearings 312 with the possibility of smooth rotation.

The arrangement of several bearings 32 and 312, not only at the opposite ends of the rotary shaft 3, but also on the connecting means 31 allows the angle-opening / closing plate 4 to rotate exactly according to the change in the amount of waste water. This prevents malfunction due to the non-rotational movement of the opening / closing plate 4, which is rotated at an angle.

Position 11 denotes a barrier wall having a predetermined height, which is made in the drainage ditch 1 in front of the storm sewer 2. In addition, 111 indicates a shield included in the barrier wall 11 for physically filtering the waste water stream.

The following is a description of the operation of the device for preventing soil leakage according to the first embodiment of the present invention.

Figure 5 shows a section of a device for preventing leakage of soil according to the first embodiment of the present invention, to illustrate its operation. As shown in FIG. 5, under normal conditions, the opening / closing plate 4, which is rotated at an angle, located in the wastewater inlet 21, is inclined, as shown by a solid line, so that the lower part of the opening / closing plate 4, which is rotated at an angle, is lowered down to keeping the back of the wastewater inlet open. Due to this, a constant amount of wastewater continuously enters the collector 2 of stormwater drainage due to passing through the inlet 21 for wastewater with a view to further directing it to the wastewater treatment plant.

In contrast, at the beginning of a rainfall, a large amount of wastewater containing soil is abruptly collected and enters the open rear area of the wastewater inlet 21. In this case, the opening stop 5 according to the present invention supports the rear part of the opening / closing plate 4, which is rotated at an angle, in order to prevent it from lowering down a predetermined angle.

Due to this, wastewater, which contains a relatively large amount of soil, is directed from the back of the open / close plate 4, which is rotated at an angle to the front part of the open / close plate 4, which is inclined upward, pushing down the front part of the open / close plate 4, which is rotated at an angle , the opening / closing plate 4, which is rotated at an angle, can quickly change the inclined position to the horizontal position, as shown by the dot-dash line, thereby closing the inlet 21 for sewage collector 2 storm sewers.

By preventing the soil from entering the storm sewer collector 2 at the beginning of the shower, which causes a rapid increase in wastewater inflow, this invention eliminates the risk of reducing the cross-sectional area of the storm sewer collector 2 due to soil leakage and eliminates soil transfer to the wastewater treatment plant.

It should be noted that, as shown in FIG. 3, the closing force of the open / close plate 4, which is rotated at an angle, can be adjusted by changing the rear weighting device 7, which is suspended from the bottom surface of the rear part of the open / close plate 4, which is rotated at an angle.

Such adjustment of the closing force of the opening / closing plate 4, which is rotated at an angle, allows the operator to take quick measures in response to a change in the amount of wastewater and ensures compatibility of the use of the device regardless of the amount of wastewater.

6 shows an alternative configuration of an equalizing stop according to the invention. Unlike the above embodiment, the leveling stopper 6 has the shape of a front protrusion 62. The front protrusion 62 is formed on the front end of the periphery of the sewage inlet 21, so that the front end of the opening / closing plate 4, which is rotated at an angle, is laid on it.

The protrusion 62 is attached to the periphery of the wastewater inlet 21 by means of fasteners, such as bolts, or by welding.

By using the protrusion 62, which protrudes back from the front end of the wastewater inlet 21, the possibility of lowering the front end of the opening / closing plate 4, which is rotated at an angle, is excluded from the horizontal position.

7 shows another alternative configuration of an equalizing stop according to this invention. Unlike said first embodiment, the alternative leveling stopper 6 is in the form of a rear protrusion 63 formed at the rear end of the periphery of the sewage inlet 21.

The rear protrusion 63 is a horizontal plate having a predetermined thickness. In the area of the front end of the horizontal plate, several cutouts 631 are made to ensure smooth flow of wastewater.

When the amount of wastewater flow increases due to rainfall, the rear protrusion 63 pushes the rear end of the angle-opening / closing plate 4 to hold the angle-opening opening / closing plate 4 in a horizontal position. In addition, the slots 631 formed in the area of the front end of the rear protrusion 63 serve as guides to ensure smooth flow of wastewater into the storm sewer 2.

On Fig shows a device for preventing leakage of soil according to the second embodiment of the present invention. Compared with the first embodiment, in this embodiment, at least one front weighting device 8 is additionally suspended from the lower surface of the front of the angle of the opening / closing plate 4 for adjusting the closing force of the angle of rotation of the opening / closing plate 4 in accordance with the amount of wastewater.

The front weighting device 8, suspended on the lower surface of the front of the angle-opening / closing plate 4, can be easily replaced, which simplifies the adjustment of the closing force of the angle-turning opening / closing plate 4.

Figure 9 shows alternative configurations of the front and rear weighting devices according to this invention. An alternative rear weighting device 7 according to the present invention includes: a nut 71, which is fixed on an angled opening / closing plate 4 and has a longitudinal threaded hole 711; and a screw rod 72, mounted longitudinally in the threaded hole 711, designed to change the lowering weight of the rear weighting device 7 around the rotary shaft 3 by adjusting its front and rear positions.

That is, by turning the screw shaft 72 to adjust its front and rear positions, it is possible to adjust the lowering weight of the rear weighting device 7 around the rotary shaft 3. Thus, the closing force of the opening / closing plate 4, which is rotated at an angle, can be simply adjusted in response to a change in the quantity waste water.

Figure 10 shows a section of a device for preventing leakage of soil according to a third embodiment of the present invention. The device for preventing soil leakage according to the third embodiment is identical to the device according to the first and second embodiments, with the exception of the rotary shaft 3, which is used to support the opening / closing plate 4, which is rotated at an angle.

The soil inflow prevention device according to the third embodiment is characterized in that the rotary shaft 3, on which the opening / closing plate 4, which is rotated at an angle, rests, is fixed in a forward position relative to the central axis of the open / close plate 4, which is rotated at an angle, using connecting means 31 .

When the locking position of the rotary shaft 3 is shifted forward from the central axis of the open / close plate 4, which is rotated at an angle, the rear part is heavier than the front part of the plate 4. This provides the advantage that the open / close plate 4, which is rotated at an angle, can be stably held in the open position when normal conditions.

11 shows a section through a device for preventing soil leakage according to a fourth embodiment of the present invention. The soil inflow prevention apparatus according to the fourth embodiment is configured such that the three front water sealing plates 23 protrude backward from a portion of the front end of the periphery of the sewage inlet 21 at opposite end positions and in a central position relative to the rotary shaft 3 and each front sealing water plate 23 includes an extension plate 231 and a rubber layer 232 for entering into close contact with the front end of the lower surface which is rotated at an open angle washing / closing plate 4 in order to prevent the entry of wastewater into the sewer collector 2 when the angle-opening / closing plate 4 is rotated to close the wastewater inlet 21; and three rear water-sealing plates 23 protrude forward from a portion of the rear end of the periphery of the wastewater inlet 21 at opposite end positions and in a central position relative to the rotary shaft 3, and each rear water-sealing plate 23 includes an extension plate 231 and a rubber layer 232 to enter close contact with the rear end of the lower surface of the opening / closing plate 4, which is rotated at an angle, to prevent the entry of wastewater into the collector 2 of storm sewers, when rotated at an angle, the opening / closing plate 4 is rotated to close the wastewater inlet 21.

With this configuration, the opening / closing plate 4, which can be rotated at an angle, can seal the stormwater collector 2 during the rainy season when there is a lot of rainwater, which prevents the sewage containing soil from entering the stormwater collector 2 even during the rainy season.

As follows from the above description, the device for preventing soil leakage according to this invention provides the following advantages.

Firstly, according to the invention, it is possible to prevent the entry of soil into the storm sewer at the beginning of the shower, which leads to an increase in the input flow of wastewater. This leads to the prevention of a decrease in the cross-sectional area of the storm sewer collector due to soil inflow, as well as to the prevention of soil transfer to the wastewater treatment plant.

Secondly, the present invention provides an angled opening / closing plate that is simply actuated to open and close the sewage inlet of a storm sewer collector only under the influence of the weight of the sewage. This minimizes the manufacturing cost of the device to prevent leakage of soil.

Thirdly, the present invention utilizes a rear weighting device capable of increasing the weight of the rear portion of the opening / closing plate that is rotated at an angle. This allows the wastewater to flow smoothly into the storm sewer collector under normal conditions.

Fourth, rear weighting devices located on an angle-opening opening / closing plate can be replaced or weight-adjusted to control the closing force of an angle-opening opening / closing plate in response to a change in the amount of wastewater due to rainfall. This ability to respond quickly to changes in the amount of wastewater provides a compatible use of the device to prevent soil leakage, regardless of the amount of wastewater. In addition, under normal conditions, the rear weighting devices lower the rear of the opening / closing plate, which is rotated at an angle, to open the rear zone of the wastewater inlet, which ensures smooth flow of wastewater into the storm sewer.

Fifthly, according to this invention, since the opening / closing plate rotated at an angle can be smoothly actuated in response to a change in the amount of wastewater, incorrect operation can be prevented due to the non-rotational movement of the opening / closing plate 4, which is rotated at an angle.

Although preferred embodiments of the present invention have been disclosed to illustrate, those skilled in the art will appreciate that various modifications, additions and substitutions are possible without departing from the spirit and scope of the invention disclosed in the appended claims.

Claims (13)

1. A device for preventing soil inflow for use in a storm sewer collector located on a drain side of a drainage ditch and having one or more wastewater inlets, comprising a rotary shaft extending across a corresponding wastewater inlet; an opening / closing plate rotated at an angle, connected to the rotary shaft and intended to open and close the inlet for wastewater in accordance with the amount of wastewater; at least one opening limiter located on the periphery of the wastewater inlet behind the rotary shaft or at the rear wall of the storm sewer collector to control the opening angle of the opening / closing plate rotated at an angle; at least one leveling stop located on the periphery of the wastewater inlet in front of or behind the pivot shaft to hold the opening / closing plate rotated at an angle in the closed position; at least one rear weighting device located on the lower surface of the rear part of the opening / closing plate rotated at an angle; in which the rear weighting device comprises a nut, which is fixed on the opening / closing plate that is rotated at an angle and has a longitudinal threaded hole; and a screw rod, mounted longitudinally in the threaded hole and designed to change the lowering weight of the rear weighting device around the rotary shaft by adjusting its front and rear positions. 2. The device according to claim 1, in which the rotary shaft is fixed in the center of the open / close plate rotated at an angle using connecting means. 3. The device according to claim 1, in which the rotary shaft is fixed in a forward-shifted position relative to the center of the opening / closing plate, which is rotated at an angle, using connecting means. 4. The device according to claim 1, in which the leveling limiter includes a groove formed at the front end of the periphery of the wastewater inlet for receiving the front end of the opening / closing plate that is rotated at an angle. 5. The device according to claim 1, in which the leveling limiter includes a front protrusion that protrudes from the front end of the periphery of the wastewater inlet to ensure that the front end of the opening / closing plate is rotated at an angle therethrough. 6. The device according to claim 1, in which the leveling stop includes a rear protrusion that protrudes from the rear end of the periphery of the wastewater inlet. 7. The device according to claim 6, in which the rear protrusion is a horizontal plate having a predetermined width, and several cutouts are formed in the front zone of the horizontal plate to ensure smooth flow of wastewater. 8. The device according to claim 1, in which three front water-sealing plates protrude back from a portion of the front end of the periphery of the wastewater inlet at opposite end positions and in a central position relative to the rotary shaft, each front water-sealing plate includes an extension plate and a rubber a layer for entering into close contact with the front end of the lower surface of the opening / closing plate rotated at an angle to prevent the entry of wastewater into the storm collector when the rotary opening / closing plate is rotated to close the wastewater inlet and the three rear water-sealing plates protrude from the rear end portion of the periphery of the wastewater inlet in opposite end positions and in a central position relative to the rotary shaft, and each rear water-sealing plate includes an extension plate and a rubber layer for coming into close contact with the rear end of the lower surface rotated at an angle of about kryvayuschey / closing plate for preventing entry of water into the waste collector stormwater when swiveling angle of opening / closing plate is rotated to close the inlet waste water. 9. The device according to claim 1, additionally containing at least one front weighting device located on the lower surface of the front part of the opening / closing plate that is rotated at an angle. 10. The device according to claim 9, in which the front weighting device comprises a nut that is fixed on an open / close plate that is rotated at an angle and has a longitudinal threaded hole; and a screw rod, mounted longitudinally in a threaded hole and designed to change the lowering weight of the front weighting device around the rotary shaft by adjusting its front and rear positions. 11. The device according to claim 1, additionally containing a frame located on the periphery of the corresponding inlet for wastewater. 12. The device according to any one of claims 1 to 3 or 11, further comprising a pair of bearings located between opposite ends of the rotary shaft and opposite sides of the wastewater inlet, respectively, to ensure smooth rotation of the rotary shaft. 13. The device according to item 12, in which the connecting means contain one or more brackets for bearings attached to the lower surface of the open / close plate, which is rotated at an angle; and one or more bearings located in the bearing brackets, respectively, for assembly with the possibility of rotation with a rotary shaft.

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