KR100893872B1 - Odor preventing drain cover of manhole - Google Patents

Abstract

A drainage cover for the odor prevention of a manhole is provided to prevent the damage or separation of the drainage cover due to the reverse current of the water. A drainage cover(10) for the odor prevention of a manhole comprises: a loading plate(12) which a manhole cover or the drainage cover is lifted; an inflow space(15) located in the inner side of the loading plate and in which the water is flowed in; a drainage plate located in the lower part of the inflow space, in which the floor side is closed after being opened with the weight of the water flowed through the inflow space; and a pressure diminution part(30) decreasing the reverse current pressure by discharging the water when the water flows reversely, in which the drainage plate is integrally connected.

Description

Odor preventing drain cover of manhole}

The present invention relates to a odor prevention drain cover installed at the inlet of the manhole, such as sewers or drains, more specifically, to block the odor coming up from the manhole in general, and also to freely drain a large amount of rain or rain Of course, it relates to a odor prevention drain cover of the manhole to reduce the back flow pressure when the reverse flow occurs.

Generally, drainage cover or manhole cover, which is one of the drainage facilities, enables the drainage of rainwater or sewage to be smoothed while filtering out relatively large foreign substances at the entrance of manholes such as sewers and drains provided on roadsides, parks, and amusement parks. Etc. are provided.

Thus, the conventional drain cover 100 is installed at the inlet of the manhole (1), such as sewers or drains are flat iron so as to have a predetermined distance in the width direction between the side frame 110 located on both sides as shown in FIG. Or is formed by welding a plurality of bearing bar 120 in the form of I (I), a plurality of cross bars 130 in the form of rods or screws to have a predetermined distance in the longitudinal direction at the top of the bearing bar 120 It is configured to be welded to form several drainage holes 140 between the bearing bar and the bearing bar and between the cross bar and the cross bar.

In addition, a typical manhole cover installed at the inlet of the manhole is configured such that a plurality of drain holes are formed so that rainwater can be drained in a circular or square form corresponding to the inlet of the manhole.

However, as described above, the drain cover or the manhole cover provided at the inlet of the manhole, such as the sewer or drain, can filter out relatively large foreign substances and at the same time, but rainwater or sewage can be smoothly drained. As the odor generated inside the manhole is released into the atmosphere as it is, there is a problem that not only adversely affects a passenger passing through the upper part of the manhole such as a sewer or a drain, but also pollutes the atmospheric environment.

In order to solve such a problem, a device for blocking odors of various forms has been proposed in the related art, but its structure is complicated, and manufacturing is inconvenient.

Accordingly, the present applicant has registered a registered patent No. 500132, "Smell prevention sanitary cover" registered in advance so that the odor is blocked and drainage can be made smoothly by the present applicant, refer to the accompanying drawings Figure 7 The description is as follows.

As shown, the odor prevention sanitary cover 200 installed at the lower portion of the drainage cover or the manhole cover at the inlet of the manhole, such as a drain or drainage, is provided with guide plates 202 at both sides of the drainage space 210 having an open top. And an inclined plate 204 is formed in the middle between the guide plates, and an inclined side plate 206 having a drain hole 206a is formed in the lower portion of the guide plate 202, and formed on the inclined side plate 206. The drain hole 206a is configured to be opened and closed by a drain door 208 hinged at an upper side thereof.

Accordingly, during the drainage, the rainwater introduced into the drainage space is divided into both sides by the inclined plate through the guide plate and is drained by opening the drainage door covering the drainage hole formed in the inclined side plate. As it covers, it has the advantage of blocking odor without emitting it to the atmosphere.

However, in the case of the odor-preventing sanitary cover that the applicant has previously registered and registered as described above, the drainage hole formed in the inclined side plates on both sides to be opened and closed by the drainage door, which is not able to drain a large amount of water in case of local heavy rain or heavy rain in the rainy season. It is difficult to drain a large amount of water rapidly during local heavy rains or during heavy rains during the rainy season.

In addition, depending on the region, when a large amount of water is generated temporarily due to local torrential rain or torrential rain, backflow occurs frequently at the inlet of the manhole. It has a function, which not only has the side effect of accelerating the inundation of the lowland area on the sewer line connected to the manhole, but also if the existing odor prevention device does not overcome the backflow pressure, the odor prevention device or the odor prevention device from the manhole and The problem of causing secondary accidents caused by the detachment of the manhole cover.

The present invention has been improved based on the registered patent No. 500132 "Smell Prevention Sanitary Cover" registered and filed by the present applicant in order to solve the conventional problems as described above, usually to block the odor coming from the manhole and rain or rain In addition to freely draining a large amount of water is also provided to provide a drain cover for preventing odor of the manhole to reduce the back flow pressure in the event of backflow.

Another object of the present invention, to maximize the amount of drainage.

Another object of the present invention is to make it possible to selectively use the opening and closing of one drain plate having both sides or a simpler structure according to the amount of drainage of the area.

The present invention for solving the technical problem as described above, the manhole is provided between the inlet of the manhole, such as sewers and drains, and the manhole cover, such as a drain cover, to block odor generated from the manhole and to facilitate drainage In the odor prevention drain cover, the drain cover is formed on the upper edge of the stepped on the step formed in the entrance of the manhole and a drain plate cover or manhole cover is formed, the inflow that the water flows into the inner plate The space portion is formed, the lower portion of the inlet space portion is blocked front and rear and both sides and the bottom surface is formed by the closing of the drain plate is opened by the load of the water introduced through the inlet space portion, which is a reverse flow in the reverse plate Characterized in that it comprises a pressure reducing unit for discharging the water to reduce the back flow pressure.

The drainage plate is hinged at both ends to both sides of the lower end of the divided protrusion in which the hollow part is formed in the middle of the front and the rear, and the respective hinge weights are rotated at the hollow part, and the hinge side is coupled to the opposite side. The ends of the is characterized in that the pair is formed in contact with the hem of both sides.

Both sides formed in contact with the pair of drain plates are formed to be inclined inward, and the ends of the drain plates in contact with both sides are formed to have a downwardly curved surface.

Both sides formed to be in contact with the pair of drain plates are formed to be inclined to the outside, both sides are separated from the front and rear surfaces, both sides of the upper end is hinged to the mounting plate is formed so that the bottom end is in contact with each drain plate and the end It features.

The drainage plate is formed at the rear of one side of the receiving space portion, the both ends are hinged to both sides of the lower end of the receiving space portion, the weight coupled to the hinge side is formed integrally, the other end is the inner end It is characterized by being formed in contact with the hem of the side which is formed to be inclined.

The pressure reducing unit is divided into a drain plate, characterized in that the edge is formed on the stepped portion formed in the drain plate and one side is composed of an open plate hinged to the upper surface of the drain plate.

The present invention blocks the odor that normally comes up from the manhole and freely drains a large amount of water during rainy weather, as well as to reduce the back pressure in the event of backflow, thereby minimizing air pollution due to odor The drainage can be made smoothly regardless of the amount of drainage, as well as to have the effect of minimizing the breakage or breakage of the drainage cover due to backflow.

In addition, both sides are also opened and closed so that not only the drainage plate constituting the bottom surface, but also a large amount of water rapidly blowing during heavy rains or rainy seasons, so that the drainage can be maximized to smoothly drain regardless of the drainage amount. It also has an effect.

In addition, according to the amount of drainage and installation conditions for each area, by allowing the use of the drain plate that is open or closed on either side or one, it has the effect that can be easily installed by selecting a simple structure required according to the characteristics of the area. .

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view schematically illustrating main parts of the present invention, and FIG. 2 is a cross-sectional view illustrating main parts of FIG. 1.

Based on the registered patent No. 500132, "Odor odor prevention sanitary cover", which is registered and filed by the present applicant as shown, is interposed between the inlet of the manhole, such as sewer or drain, and the drain cover or manhole cover installed at the inlet of the manhole. In the odor prevention drain cover of the conventional manhole provided to block the odor generated from the manhole and smoothly drained,

The present invention, in order to block the odor that normally comes up from the manhole and to freely drain a large amount of water in the rain or suddenly, as well as to reduce the back flow pressure in the event of backflow,

The drain cover 10, the upper plate is formed with a mounting plate 12 which is raised to the step formed at the entrance of the manhole and the drain cover or the manhole cover, etc., and water such as rainwater or sewage into the mounting plate. The inflow space portion 15 is formed, the lower portion of the inflow space 15 is blocked front, rear 16, 17 and both sides 18, 19, the bottom surface is the inflow space A drain plate 20 is formed after opening by the load of the water introduced through the part 15 and then closed. The drain plate 20 has a pressure reducing part 30 for reducing the back flow pressure by discharging the back flow water during the back flow. It is shown to have integrally.

The drainage plate 20 is hinged at both ends to both sides of the lower ends of the semi-circular split projections 14 in which the hollow portion 14a is formed in the middle between the front and rear surfaces 16 and 17, and the hinge-coupled side. Each weight 22 rotated in the hollow portion 14a is formed, and the opposite ends of the hinge-coupled sides are introduced into both sides from the split protrusions to contact the bottom ends of both side surfaces 18 and 19. It is preferable to form a pair so that the drainage of the water to be made smoothly. At this time, the split protrusion is formed in a semi-circular shape to allow the weight formed on the drain plate to have a sufficient rotation radius in the hollow when the drain plate is opened and closed.

Both sides 18 and 19 formed to be in contact with the pair of drain plates 20 are formed to be inclined inward so as to be in close contact with the drain plate while allowing the incoming water to flow smoothly. And, the end of the drainage plate 20 in contact with both sides is preferably formed of a curved surface 20a molded downward to have a more intimate contact force.

In the above, the bottom of each side in contact with the pair of drainage plate when combined with a packing made of a conventional material such as silicon or rubber, it can have a higher airtightness to minimize the emission of odor to the atmosphere It is preferable.

The pressure reducing unit 30 is divided in the drain plate 20, the edge is mounted on the step portion 32 formed in the drain plate 20 and one side is hinged to the upper surface of the drain plate 20, to the water flowing from the upper It is preferable that it is composed of an open plate 35 which is not opened by the opening but is opened only in the reverse flow.

The present invention configured as described above, by first placing the placement plate formed on the edge of the drain cover on the stepped formed at the entrance of the manhole and put a manhole cover such as a drain cover on the placement plate, even when water is not normally drained As shown in 3a, the ends of each of the pair of drain plates 20 are closed by contact with the hem of both sides 18 and 19 by the weight of the weight 22 provided in the hollow portion 14a of the divided protrusion 14. As a result, the odor generated inside the manhole is blocked from being released into the atmosphere, thereby improving the environment around the manhole and minimizing air pollution.

Then, when rainwater or sewage flowing through the manhole cover is introduced through the inflow space 15 and flows down both sides 18 and 19 to the drainage plate 20 to have a constant load, that is, the When a load that is heavier than the weight of the weight 22 supporting the drainage plate 20 is applied, the drainage plate 20 is smoothly drained by opening as shown in FIG. 3B, and even if a large amount of water is introduced rapidly. The pair of drain plates 20 are open to the bottom as possible, such as a solid line, to have a condition that can freely drain a large amount of water at once.

Thus, after the drainage plate is opened and drained, the drainage plate returns to its original position by the weight of the weight integrally provided in the hollow part of the divided protrusion, and the ends thereof are at the bottom of both sides and as shown in FIG. 3A. It is in contact with and closed to block odor generated from the manhole.

On the other hand, when abnormality occurs or is blocked in the manhole in the process of smoothly draining as described above, the drain plate is supported on the side and is not opened to open the pressure reducing unit formed on the drain plate 20 as shown in FIG. 3C. By the 30, that is, the open plate 35, which is divided in the drainage plate and the edge is raised on the stepped portion 32 formed in the drainage plate 20, is opened starting from a hinged portion of the upper surface of the drainage plate 20, As a part of the backflow pressure is reduced, the drain cover due to the backflow has a condition to minimize the breakage or breakage from the inlet of the manhole.

In other words, when a backflow occurs in the manhole, the backflow pressure is considerably high, and the high backflow pressure is partially discharged while the open plate formed in the drain plate is opened, thereby reducing a large damage by reducing the backflow pressure. .

The open plate opened by the reverse flow is supported by the top of the drainage cover or the bottom of the manhole cover provided at the upper portion of the drain cover, and after the backflow pressure is reduced, the open plate is naturally covered by the stepped portion of the drain plate. To be closed.

Therefore, the present invention blocks the odor generated from the usual manholes to prevent the release to the atmosphere and during drainage, the drainage plate is open and drains smoothly, and even if a large amount of water is suddenly generated, the drainage plate provided in pairs is maximally downward. It can be opened to secure a large amount of drainage at the same time, and also to reduce backflow pressure in the event of backflow, thereby minimizing departure or breakage. You will have excellent conditions to perform both simultaneously.

4 is a main view schematically showing another embodiment of the present invention.

In the above configuration as shown, in order to be able to drain a large amount of water at a time, such as during a heavy rain or rainy season at once,

Both sides 18 and 19 formed to be in contact with the pair of drainage plates 20 are formed to be inclined outwardly, and both sides 18 and 19 are separated from the front and rear surfaces 17 so that both top ends thereof are separated. Hinge coupled to the mounting plate 12 shows that the bottom is formed in contact with each of the drain plate 20 and the end.

In other words, not only the pair of drain boards formed on the bottom surface is opened and closed, but when a large amount of water is generated at the moment, both sides 18 and 19 are also opened to drain a large amount of water at once. It would be.

In the above, when both sides are opened and closed, both sides are formed to be inclined outward so that they can be closed by their own weight when opened and closed.

Therefore, not only the drain plate forming the bottom surface of the drain cover is opened and closed, but also the drainage of a considerable amount of water that is instantaneously blown during heavy rains or rainy seasons, and a pair of drain plates and both sides are simultaneously opened to sufficiently drain the condition. To have.

5 is a main view schematically showing another embodiment of the present invention.

In the above configuration as shown, in order to not only form a drain plate in a pair divided into both sides, but also to form a simpler structure, if necessary,

The drainage plate 20 forms an accommodating space 40 at the rear side of one side 19, both ends of which are hinged to both sides of the lower end of the accommodating space, and are pivoted at the accommodating space by the hinged side. 22 is integrally formed, and the other end is formed to be in contact with the bottom of the side 18 is formed to be inclined inward.

In the above, it is preferable to form in the shape of an arc so as not to interfere with the flow of water to the side where the receiving space is formed.

In addition, it is preferable that the end of the drain plate 20 in contact with the side surface is formed in a downwardly curved curved surface 20a so as to be in close contact with the side surface, and the pair described above also in the one drain plate 20. The same pressure reduction part 30 provided in the drain plate of the is formed.

As a result, a single drainage plate has a simple structure compared to the above-described pair of drainage plates, and has a simple structure to prevent odor blocking and smooth drainage, and to reduce backflow pressure when a backflow occurs, thereby minimizing departure and damage of the drain cover. To have.

Accordingly, the present invention also provides the convenience of use that can be selectively used in the form having a pair of drain plates described above or one of the drain plates according to the amount or condition of the area to be installed.

1 is a perspective view of main parts schematically showing the present invention.

2 is a sectional view of the main part according to FIG. 1;

3a to 3c is a main part showing a state of use of the present invention,

Figure 3a is a main part of the state to block the odor normally.

3B is a principal view of a state in which water is drained.

3C is a principal view of a state in which the back flow pressure is reduced during back flow.

Figure 4 is a main view schematically showing another embodiment of the present invention.

5 is a main view schematically showing another embodiment of the present invention.

Figure 6 is a perspective view of the main part showing a general drain cover.

Figure 7 is a main view showing a conventional hygienic cover for preventing bad smell.

Explanation of symbols for the main parts of the drawings

10: drain cover 12: mounting piece

14: divided protrusion 14a: hollow portion

15: inlet space 16: front

17: rear 18,19: side

20: drain plate 20a: curved surface

22 weight 30 pressure reducing unit

32: stepped portion 35: open plate

40: accommodation space

Claims (6)

In the odor prevention drain cover of the manhole interposed between the inlet of the manhole, such as sewers or drains, and the manhole cover, such as the drain cover, to block odor generated from the manhole and to facilitate drainage, The drain cover 10 is provided with a mounting plate 12 which is raised to the step formed at the entrance of the manhole in the upper edge and the drain cover or manhole cover is formed, the inflow space into which water flows into the mounting plate Part 15 is formed, the lower portion of the inlet space portion is blocked by the front, rear surfaces 16, 17 and both sides 18, 19 and the bottom surface is opened by the load of water introduced through the inlet space portion. After the drain plate 20 is formed to be closed, the drain plate for preventing malodor odor of the manhole, characterized in that it is integrally provided with a pressure reducing portion 30 to reduce the back flow pressure by discharging the water flowing back during the back flow. According to claim 1, wherein the drainage plate 20 is hinged at both ends to both sides of the lower end of the divided projection 14, the hollow portion 14a is formed in the middle of the front, rear 16, 17, the hinge Each weight 22 is rotated in the hollow portion to the coupled side is formed, the end of the hinge coupled opposite side is formed in a pair to contact the bottom of the both sides odor prevention drain cover. 3. The drainage plate (20) of claim 2, wherein both side surfaces (18) (19) formed to abut the pair of drainage plates (20) are inclined inwardly, and the drainage plates (20) abutting the two side surfaces (18) (19). The end of the manhole odor prevention drain cover, characterized in that formed by a curved surface (20a) formed downward. According to claim 2, wherein both side surfaces (18) and (19) formed to abut the pair of drain plates (20) are formed to be inclined outward, and both side surfaces (18) and (19) are front and rear (16) ( 17) is separated from the upper end of both sides hinged to the mounting plate 12, the bottom end of the odor prevention drain cover, characterized in that the bottom end is formed in contact with each of the drain plate 20 and the end. delete According to any one of claims 1 to 4, The pressure reduction portion 30 is divided in the drain plate 20, the edge is mounted on the step portion 32 formed in the drain plate and one side hinged to the upper surface of the drain plate Odor drainage cover of the manhole, characterized in that consisting of an open plate 35.

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