KR100591741B1 - The structure for the overflow prevention of the sewer - Google Patents

Abstract

The present invention by using a simple structure, the drainage is adjusted according to the flow rate of the sewage flow to prevent backflow and to solve the clogging phenomenon of the sewage pipe due to the inflow of foreign substances contained in the sewage, the maintenance, repair cost is low, installation And it relates to a structure for preventing the backflow of sewage pipes can be used semi-permanently simple construction, and more particularly, the present invention to filter the foreign matter contained in the sewage, and from top to bottom to achieve the above object A plurality of fastening holes are formed to penetrate in the longitudinal direction, and the fixing plate is formed in a cylindrical holder, and at the lower part of which the seating end is formed on the upper inner circumferential surface thereof, a meshing jaw is formed so that the filtering net is placed thereon, Is formed, and the cylindrical drainage body narrowed from the top to the bottom, the left / right of the drain A fixed hinge through which two sets of hinge holes penetrate outwards is formed, and a drain adjusting body is formed of a fixed end formed by protruding support protrusions having the same size as the width of the floodgate on the front of the fixed hinge, and a hinge hole in the front bottom. Rotating hinge is formed integrally, the rear bottom portion is fixed to the other end of the tension spring is fixed to the vertically fixed, characterized in that consisting of the drainage adjustment door formed with a water sluice.

Backflow prevention, drain pipe, strainer, catchment manhole, drainage regulator

Description

The structure for the overflow prevention of the sewer}

1 is a cross-sectional view showing a structure for preventing backflow of a conventional sewage pipe,

Figure 2 is an exploded perspective view showing a structure for preventing backflow of the sewage pipe according to the present invention,

3 is a perspective view showing a structure for preventing backflow of sewage pipes according to the present invention,

4 is a cross-sectional view showing a closed state and an installation state by the line A-A of FIG.

5 is a cross-sectional view showing an open and closed state of the structure for preventing backflow of the sewage pipe according to the present invention,

<Description of Symbols for Main Parts of Drawings>

10: backflow prevention device 11: filter net

12: holder 13: drain control body

14: drainage control gate 100: steel grating

101: border 102: screen

103: inlet 121: fastening hole

121a: fixing bolt 122, 144: fixing plate

122a, 144a: fixing hole 123: tensioning spring

123a: fixing hole 131: seating end

132: jam step 133: man caught jaw

134: drainage body 134a: drain

134b: sluice catching 135: fixed end

135a: fixed hinge 135a ', 142a: hinge hole

135b: Hinge pin 135c: Base protrusion

135d: fastening groove 136: receiving portion

141: sluice 142: rotation hinge

143: buoyancy member 200: catchment manhole

201: opening 202: locking jaw

203: Border 204: Manhole body

205: coupling pipe 300: sewer pipe

a: foreign substance

The present invention relates to a structure for preventing the backflow of the sewage pipe, and in particular, the drainage is controlled according to the flow rate of the sewage using a simple structure to prevent backflow, and the clogging phenomenon of the sewage pipe due to the inflow of foreign substances contained in the sewage is fundamental. The present invention relates to a structure for preventing backflow of sewage pipes, which is low in maintenance cost, simple to install and construct, and can be used semi-permanently.

In general, a water collecting manhole is provided on a road adjacent to a surface on which a roadway boundary stone is in contact with a roadway and a sidewalk. The water collecting manhole is generally provided with a water collecting manhole made of a plastic material. Steel gratings are installed.

However, when the sewage rate increases sharply due to heavy rain or other external requirements, the sewage manhole does not flow along the sewer pipe through steel grating, but flows back to the road, resulting in an electric shock of the street lamp. Vehicles moving on roads or roads had problems that could cause an accident.

Korean Utility Model Registration No. 20-0312015 has been proposed to compensate for this problem.

A typical example of such a conventional backflow preventing collection manhole of the sewer pipe is shown in FIG. 1.

As shown therein, the steel grating 1 and the sewer pipe 5 which are formed to correspond to both sides of the lower part of the collecting manhole 4 and the upper part of the collecting manhole 4 are fastened and the prevention film fastening frame 2 is fastened. It consists of a backflow prevention plate 3 which is rotated to prevent a backflow to the prevention film fastening frame (2).

If the sewage does not flow along the sewage pipe 5 and flows back to the upper part of the collecting manhole 4, the backflow prevention film 3 is rotated upward by the sewage, where the water level rises, and the ends thereof come into contact with each other. Closing the bottom of 1) prevents backflow.

However, when the amount of the conventional sewage as described above is large, the flow rate is also increased. At this time, the sewage introduced through the steel grating does not flow through the sewer pipe due to the high flow rate, and there is a problem of generating a backflow. Even if it is formed, there is a problem in that the close contact force is weak and the sewage is pushed through the place where the backflow prevention film abuts to generate a backflow.

Accordingly, the present invention has been made in view of the problems of the prior art as described above, the foreign matter contained in the sewage, sand, small stone fragments, etc., which are introduced into the upper part of the drainage regulator is installed in the lower portion where the steel grating is located. This prevents the inflow of the backflow due to the blockage of the sewage pipe by preventing the inflow, and the purpose is to simplify the maintenance work and to reduce the maintenance and repair costs.

In addition, another object of the present invention is fastened to the drainage regulator and the tension spring and hinged drainage control door to be rotated so that the opening and closing of the drainage control door is adjusted according to the flow rate of the sewage to control the inflow to prevent backflow Its purpose is to.

Another object of the present invention is to attach a buoyancy member to the drainage control door and engage with a tension spring fastened to the fixing base at the rear, so that the buoyancy member is floated by this sewage even if the sewage due to the backflow phenomenon is pushed up. By using the action force and the restoring force of the tension spring, the drainage control gate is intended to prevent the backflow by closing the drain.

The present invention to filter the foreign matter contained in the sewage and to achieve the above object,

A plurality of fastening holes penetrating from the top to the bottom in a longitudinal direction, and a fixing plate having fixing holes along the outer circumferential surface thereof is fixed vertically, and a cylindrical holder having one end of the tension spring fastened to the fixing holes;

A seating end is formed on an upper inner circumferential surface, and the outside of the seating end protrudes outwardly so that a hooking end is formed, and a bottom of the seating end is formed with a meshing jaw so that a strainer is placed thereon. A plurality of drain holes are formed in the direction, and the upper part of the penetrating upper portion protrudes downward, the cylindrical drainage body is narrowed from the upper portion to the lower portion, and is fixed integrally with the hem of the drainage body. It includes a receiving portion is formed with a fastening groove is fixed, and a fixed hinge is formed through the two hinge holes through the left / right outer side of the drain, the support protrusions of the same size as the width of the water gate protrudes on the front of the fixed hinge Drain regulator consisting of a fixed end is formed,

It is formed in the same size as the drain, the front bottom portion is formed with a hinge hinge is formed integrally, the rear bottom is fixed to the fixing plate formed with a fixing hole for fixing the other end of the tension spring is vertically fixed, the water gate Characterized in that consisting of the drainage adjustment door formed by being provided with a water sluice corresponding to the locking jaw,

The front upper portion of the drain control gate is provided with a buoyancy member is attached to rise by the reverse flow sewer to prevent backflow.

When described in detail on the basis of the accompanying drawings a preferred embodiment of the present invention as follows.

2 is an exploded perspective view showing a structure for preventing the backflow of the sewage pipe according to the present invention, Figure 3 is a combined perspective view showing a structure for preventing the backflow of the sewage pipe according to the present invention, Figure 4 is a AA Figure 5 is a cross-sectional view showing a closed state and an installation state, Figure 5 is a cross-sectional view showing the opening and closing state of the structure for preventing backflow of the sewage pipe according to the present invention.

As shown in the structure for preventing the backflow of the sewage pipe of the present invention, as shown in Figure 2, the filtering net 11 for filtering foreign matter contained in the sewage is installed. This, the strainer 11 is to filter foreign matter, such as sand, small pebbles, and the like that has passed through the steel graining (100).

In addition, the fixing stand 12 is formed with a plurality of fastening holes 121 penetrating downward. Fixing table 12 is configured to be fixed using a fixing bolt (121a) to the fastening groove (135d) formed in the fixing end 135 of the drain control body 13 to be described later.

In addition, the fixing plate 122 with the fixing hole 122a is formed vertically along the outer circumferential surface of the fixing stand 12, and has a cylindrical shape in which one end of the tension spring 123 is fastened to the fixing hole 122a. do.

That is, the fixing stand 12 is preferably formed by reducing the weight by forming a space portion in the bottom in order to reduce its own weight.

And the fixing rod 12 is fastened, the drain adjusting body 13 for adjusting the drainage of the sewage is formed with a seating end 131 on which the steel grating 100 is placed on the upper inner circumferential surface. Outside the seating end 131, the locking end 132 that is mounted on the locking step 202 of the collecting manhole 200 is projected to the outside.

In addition, the lower end of the seating end 131, the meshing jaw 133 is formed so that the above-described strainer 11 is placed.

In addition, a lower portion of the meshing jaw 133 penetrates in a lateral direction, and a plurality of drainage holes 134a protruding downward from the sluice catching jaw 134b is formed in the upper portion thereof, and has a cylindrical shape narrowed from the top to the bottom. It consists of a drain body 134.

The fixed end 135 is integrally formed with the bottom end of the drainage body 134, and the receiving end 136 having the fastening groove 135d in which the fixing stand 12 is fixed by the bolt 121a is formed at the fixed end 135. And a fixed hinge 135a provided with a hinge hole 135a 'on the left / right outer side of the drain hole 134a, and a width of the drain hole 134a on the front surface of the fixed hinge 135a. The support protrusion 135c protrudes to the same length and is supported when the drainage adjusting door 14 is rotated downward and opened.

And the drain control door 14 to perform the role of opening and closing the drain 134a is formed in the same size as the drain 134a.

In addition, the rotating hinge 142 having the hinge hole 142a is integrally formed at the front lower portion, and the fixing plate 144 having the fixing hole 144a at which the other end of the tension spring 123 is fixed at the rear lower portion is vertical. It will be formed.

In addition, the upper part is provided with a sluice 141 that is in close contact with the sluice chin (134b) is configured to prevent the phenomena due to backflow.

In addition, a buoyancy member 143 is attached to the front upper portion of the drainage control door 14 so as to rise by the reverse flow sewage to prevent backflow, and the backflow prevention device 10 is configured.

Referring to the operation of the present invention configured as described above are as follows.

First, looking at the assembly sequence, as shown in Figure 2, while the sewer pipe 300 is fastened to the coupling pipe 205 of the collecting manhole 200 is buried in the ground.

Thereafter, two fixed hinges 135a formed at the fixed end 135 and the hinge holes 135a 'and 142a of the pivoting hinges 142 formed at the drainage control door 14 are rotated using the hinge pins 135b. Tighten.

Then, the fixing stand 12 is fixed to the fastening groove (135d) formed in the receiving portion 136 by inserting the fixing bolt 121a in the fastening hole 121, the fixing table 12 and the drainage control door 14 Each end of the tension spring 123 is fastened to the fixing holes 122a and 144a of the fixing plates 122 and 144.

After that, the mesh net 11 is placed on the meshing jaw 133, and the steel grating 100 is settled on the seating end 131 to the upper portion thereof to be coupled and constructed as shown in FIGS.

In other words. Such a backflow prevention device 10, as shown in Figure 5, the sewage containing the foreign matter (a) (specified dotted line shown in the drawing) of the foreign matter (a) is filtered by the strainer 11, drainage control When the sieve 13 is introduced, the drainage control gate 14 is pushed by the sewage's own weight to open the drain opening 134a, and the drainage adjustment gate 14 is supported by the support protrusion 135c, and the sewage Is flowed to both sides of the drainage control door 14 is sent to the catchment manhole 200.

Then, when the sewage flows backward, when the sewage is pushed up to the buoyancy member 143 attached to the drainage control door 14 that is opened, the buoyancy member 143 rises, and the tension spring 123 of the The restoring force is added to the drain control door 14 to close the drain 134a to prevent backflow.

In addition, the sluice 141 of the drainage adjusting sluice 14 is in close contact with the sluice catching jaw (134b) to prevent the back flow further by preventing the back flow of the reverse flow sewage of a strong flow rate.

As described above, the present invention prevents foreign substances contained in the sewage, sand, and small pieces of the sewage introduced into the upper portion of the drainage regulator installed at the lower portion of the steel grating to prevent the inflow of sewage pipes. It prevents backflow, and it is easy to repair and reduce the maintenance and repair costs.

In addition, there is an advantage of preventing the backflow by adjusting the inflow by controlling the inflow and closing of the drainage control gate is hinged to the drainage control body is fastened by a fixed spring and the tension spring and hinged so that the drainage control gate is rotated.

Then, by attaching the buoyancy member to the drainage control door and fastening with the tension spring fastened to the fixed base in the rear, even if the sewage due to the backflow phenomenon is pushed up, the action force and the restoring force of the buoyancy member to rise by this sewage Using the drainage control door is effective to prevent the backflow by closing the drain.

The present invention has been shown and described with reference to certain preferred embodiments, but the present invention is not limited to the above-described embodiments and has ordinary skill in the art to which the present invention pertains without departing from the spirit of the present invention. Various changes and modifications may be made by the user.

Claims (2)

The steel grating 100 is formed by a plurality of inlets 103 into which the sewage flows into the left and right sides of the screen 102 and the edges 101 are formed for the support. Hanging jaw 202 is formed on the inner wall, the receiving border 203 is formed on the outside, the manhole body 204 formed to be stepped with the receiving border 203 and the lower of the manhole body 204 In the collecting manhole 200, the sewage pipe 300 is coupled to the inside of the coupling pipe 205 formed to correspond to both sides, Filtering net (11) for filtering foreign matter contained in sewage, The upper portion is formed with a plurality of fastening holes 121 penetrating downward, the fixing plate 122 having the fixing hole 122a is vertically fixed along the outer circumferential surface, the tension spring 123 to the fixing hole 122a And a cylindrical holder 12 to which one end of the cylinder is fastened, A seating end 131 through which the steel grating 100 is mounted is formed on an upper inner circumferential surface, and a locking end 132 protruding to the outside is provided on the outside of the seating end 131, and a lower portion of the seating end 131 is provided. The mandrel jaw 133 is formed so that the strainer 11 is placed on the other hand, while the lower portion of the mandrel jaw 133 penetrates in the lateral direction, and a plurality of protruding sluice latches 134b protrude downward. Two drain holes 134a are formed, and a cylindrical drain body 134 narrowed from the top to the bottom and integrally formed with the bottom of the drain body 134, and the fixing table 12 is bolted to 121a. And a receiving portion 136 having a fastening groove 135d to be fixed, and a fixed hinge 135a having a hinge hole 135a 'formed on the left / right outer side of the drain hole 134a, wherein the fixed hinge The front end of the 135a has a fixed end 135 formed by protruding the support protrusion 135c with the same length as the width of the drain 134a. Drain regulator 13 comprising a, It is formed in the same size as the drain port 134a, the rotating hinge 142 having a hinge hole 142a is integrally formed at the front lower portion, and the fixing hole 144a to which the other end of the tension spring 123 is fixed to the rear bottom. A fixed plate 144 is formed vertically, the upper portion of the sewer pipe, characterized in that it comprises a drain control door 14 formed with a sluice 141 is in close contact with the sluice chin 134b Structure to prevent backflow. 2. The structure of claim 1, wherein a buoyancy member (143) is attached to the front upper portion of the drainage control gate (14) so as to float by the backflow sewage to prevent backflow.

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