KR100720157B1 - manhole - Google Patents

Abstract

The present invention relates to a manhole for deodorization that allows the inflow of rainwater or sewage from the outside of the manhole to the inside of the manhole while preventing the external emission of odor flowing back from the inside of the manhole, and more specifically buoyancy on the upper surface of the drain hole The simple structure for mounting the sieve 40 does not have a failure, but when it is drained, it floats due to buoyancy to allow for smooth drainage, and in case of backflow of odor, it effectively blocks backflow of odor to its own weight and is easy to manufacture. It relates to a malodor backflow prevention device of the manhole.

In the configuration of the present invention, the manhole cover (2) having a drain hole 38 and the frame (1) having a seating jaw (11) on which the manhole cover (2) is seated,

A collecting plate 30 positioned below the manhole cover 2 and having a drainage hole 38 formed in an upper and lower strait shape and having a drain hole 38 vertically penetrated therein;

The mounting surface 36 is formed on the upper surface of the drainage hole 38 of the water collecting plate 30 so as to be mounted thereon and at the same time, the buoyancy body 40 is lifted / lowered by the buoyancy of the inflow water.

With the above structure, the present invention is provided with a collecting plate having a buoyancy body 40 in the lower part of the manhole cover, so that the odor generated inside the manhole is prevented from dissipating out of the manhole, but is introduced into the manhole from the outside of the manhole. It is possible to prevent the rain water to be blocked, it is easy to manufacture by simplifying the configuration of the malodor backflow prevention device has an effect that can be produced cheaper malodor backflow prevention device.

In addition, it is possible to catch the dirt flowing into the inside of the manhole, thereby blocking the source of the bad smell source, and to solve the problems such as clogging the manhole by dirt.

Description

Manhole odor backflow prevention device {manhole}

Figure 1a, 1b is a perspective view showing the separation of the odor prevention device of the circular and square manhole of the present invention

Figure 2a, 2b is a cross-sectional odor preventing device of the present invention circular and square manhole

Figure 3a, 3b is a cross-sectional view showing another embodiment of the present malodor preventing device

Figure 4 is an enlarged cross-sectional view of the main portion showing the operating state of the odor prevention device of the present invention

Figure 5 is an enlarged cross-sectional view of the main portion of the buoyancy body guide of the present invention malodor prevention device

Figure 6a, 6b is a sectional view showing the main part showing the structure of preventing the inflow of odor of the present invention odor prevention device

Figure 7 is another embodiment of the present invention buoyancy guide

<Explanation of symbols for the main parts of the drawings>

1-Frame 11-Seating jaw 2-Manhole cover

21-Drainage hole 3-Bad smell prevention device 30-Collection plate

32-flange 34-slope 36-mounting surface

38-Drain hole 40-Buoyancy body 42-Buoyancy groove

50-Guide 52-Side guide 54-Cap

55-elastic coupling piece 56-hinge 57-guide shaft

58-Shaft 59-Packing 60-Screen

62-Jams

The present invention relates to a deodorizing manhole that allows the inflow of rainwater or sewage from the outside of the manhole to the inside of the manhole while preventing the external emission of odors flowing back inside the manhole, and more particularly buoyancy on the upper surface of the drain. With the simple structure of mounting the sieve, there is no failure and it is floated by buoyancy when draining to ensure smooth drainage, and when the backflow of odor is related to the manhole odor backflow prevention device that effectively blocks the backflow of odor to its own weight. will be.

In general, due to the inflow of various sewage and organic matter, including domestic sewage in the sewage manhole, corruption proceeds in the drainage process. Especially in the humid and high season, such as summer, the decay rapidly grows, causing severe odors. These odors flow back out through the drainage holes of the manhole cover, causing severe odors when passing around the manhole. You feel unpleasant.

In order to prevent this phenomenon, a backflow prevention plate is provided to have a tendency to always close by biasing the weight inside the manhole so that it is open at the time of drainage and is kept closed by the weight at the time of backflow of the odor. There is something to prevent.

However, as the backflow prevention plate is difficult to rotate due to the foreign matter between the shaft and the bearing part with corrosion of the rotating shaft, the backflow prevention plate is not closed after opening when drained, resulting in a problem that the odor is left behind. In severe cases, there was a problem that even the opening operation is not made for drainage.

On the other hand, the backflow prevention plate is not open to the reverse direction in order to prevent the backflow of odor, so water also does not allow backflow. For this reason, there was a fear of accidents that the manhole cover is abnormally opened due to the backflow water flowing back with high water pressure during flooding, and the pedestrian or the vehicle falls into the open manhole.

The present invention has been made to solve the problem of the manhole having a conventional malodor backflow prevention device, the purpose is to prevent the odor generated in the interior of the manhole to diverge out of the manhole while entering the inside of the manhole from the outside of the manhole By simplifying the structure by simply making the function to prevent the rain water to be blocked to the buoyancy body to facilitate the manufacture of the device to minimize the occurrence of faults, as well as to maintain the odor backflow prevention and drainage function reliably.

Still another object of the present invention is to provide a odor prevention manhole that can catch filth flowing into the manhole, thereby blocking the source of odor, and preventing clogging of the drain hole.

The present invention for achieving the above object, the manhole cover having a drain hole; In the frame having a seating jaw to which the manhole cover is seated,

A collecting plate which is located in the lower part of the manhole cover and has a drainage hole penetrating up and down in the center,

The drainage hole is located on the upper surface of the collecting plate is characterized in that consisting of a buoyancy body that is raised / lowered by buoyancy.

More completely, a guide may be further disposed on the buoyancy to allow the lifting and lowering of the buoyancy and to limit the transverse movement into the drainage area.

The configuration of the present invention will be described in detail with reference to the accompanying drawings.

Figure 1a, 1b is a perspective view showing a separate odor prevention device of the circular and square manhole of the present invention, Figures 2a, 2b is a cross-sectional view of the odor prevention device of the circular and square manhole of the present invention, Figure 3a, 3b is a odor prevention device of the present invention Figure 4 is a cross-sectional view showing another embodiment of, Figure 4 is an enlarged cross-sectional view showing the main portion of the operation of the malodor prevention device of the present invention, Figure 5 is an enlarged cross-sectional view of the buoyant body guide embodiment of the present invention malodor prevention device.

As shown in the drawings, the present invention is provided between a manhole cover 2 having a drain hole 21 and a frame 1 having a seating jaw 11 on which the manhole cover 2 is seated. Odor backflow prevention device (3) is configured.

The malodor backflow prevention device 3 prevents the odor generated from the sewer pipe from being discharged to the outside of the manhole, and at the same time, the inflow water (water and sewage) flowing into the drain hole 21 formed in the manhole cover 2 is smoothly drained. Conditions to be achieved are required.

In order to satisfy this condition, the malodor backflow prevention device 3 is mounted on the water collecting plate 30 forming a light-lower narrowing shape toward the drain hole 38 in the center, and on the drain hole 38 of the water collecting plate 30. The buoyancy body 40 is comprised.

The collecting plate 30 constitutes a flange 32 around the periphery and is installed on the seating jaw 11 of the frame 1 as shown in FIGS. 2A and 2B, or the manhole cover 2 as shown in FIGS. 3A and 3B. It is integrated with the manhole cover (2) by welding or screwing around the bottom of the. And the center of the drain hole 38 in the center constitutes a horizontal mounting surface 36 so that even if there is a movement of the buoyancy body 40 is in close contact with the surface evenly there is no gap to allow the backflow of odor. Of course, the mounting surface 36 may allow a slight inclination structure by giving weight to the function of drainage. That is, when the mounting surface 36 having a slight inclination angle is given, the center position of the drain hole 38 does not coincide with the center of the buoyancy body 40 when the buoyancy body 40 flows, so that the buoyancy body 40 and the inclined surface 34 There is a possibility that a gap occurs in one of the close contact portion of the odor through this. Of course, if the inclination angle is not large, because the gap is also large enough to ignore it may be allowed a slight inclination. However, drainage performance is made more smoothly than the mounting surface 36 of the horizontal structure by the inclination angle. In particular, the mounting surface 36 may form small drainage grooves 39 toward the drain hole 38 as shown in the enlarged view of FIG. 7, even if the buoyancy body 40 does not float when the amount of inflow is small. By discharging through the drain grooves 39 can increase the water draining effect. In addition, it is possible to reduce the phenomenon that the floating efficiency of the buoyancy body 40 is reduced by the pressure difference by maintaining the same air pressure inside and outside during the lifting of the buoyancy body 40 by buoyancy. Of course, the size of the drainage groove 39 should be formed so small that even if the odor inside the manhole flows backward, the amount is negligible.

In addition, the buoyancy body 40 preferably has a disc structure, in the case of a square manhole may be a square plate structure. In addition, as shown in FIGS. 2A, 2B, 3A, and 3B, a buoyancy groove 42 is formed around the bottom of the buoyancy body 40 to guide the inflow of the inflow water into the drain hole 38. If it is filled with buoyancy acts to have a structure that is easy to float the buoyancy body (40).

In addition, the guide 50 is installed to maintain the buoyancy body 40 is always covered in the upper portion of the drain hole 38 can be stably performed to prevent the bad smell backflow.

The guide 50 may be divided into a type coupled to the collecting plate 30 and a type coupled to the bottom surface of the manhole cover 2, and as shown in FIG. 2A, the collecting plate 30 may be divided into a manhole cover 2. In the case of the malodor backflow prevention device (3) having a general purpose that can be separated and applied to any manhole, the guide (50) is fixed and coupled to the collecting plate (30) by a connecting rod (31), and the collecting plate (30) is When coupled with the manhole cover 2, as shown in Figure 2b it is preferable that the guide 50 is screwed or welded to the bottom of the manhole cover (2).

The guide 50 is for preventing the circumferential movement of the side surface 52 so that the circumference of the bottom of the guide surface does not exceed the range of the horizontal surface and the inclined surface 34 even when the buoyancy body 40 floats and flows for drainage. The cap portion 54 is formed on the upper portion of the upper portion of the buoyancy body 40 so as not to directly act on the upper surface of the buoyancy body 40 while limiting the lifting range of the buoyancy body 40. It is composed.

As shown in FIG. 5, the cap part 54a may be configured as a side body 52a and a separate body, and may have a structure that can be opened and closed. The opening and closing structure may include a plurality of elastic coupling pieces 55a disposed on a side surface thereof. It can be coupled to the locking groove (55b) of the side guide 52 or the hinge 56 on one side can be rotated by opening and closing thereby.

On the other hand, in order to further provide the stability of the lifting operation of the buoyancy body 40, as shown in Figure 7 to the vertical guide shaft 57 in the center of the cap portion 54, and corresponding to the central portion of the buoyancy body 40 The shaft hole 58 may be formed to allow the guide shaft 57 to move up and down.

In addition, a packing 59 may be further installed below the buoyancy body 40 as shown in FIG. 8 for airtightness.

The malodor prevention manhole of the present invention configured as described above has a drainage hole formed in the water collecting plate 30 by the weight of the buoyancy body 40 on rainy days, that is, when rain does not flow from the outside of the manhole ( It is hermetically adhered to the upper circumferential surface of 38 to prevent odor from being emitted to the outside through the vent hole 32 and the drain hole 21.

When rainwater flows into the manhole through the drain hole 21 formed in the manhole cover 2, the rainwater is collected to the drain hole 38 through the inclined surface 34 of the collecting plate 30, and the water is collected. When the amount of rainwater is increased, the buoyancy body 40 having buoyancy floats by the rainwater to open the drain hole 38, and the collected rainwater falls into the manhole. In particular, since the buoyancy is increased by increasing the contact area with the water collected by the buoyancy groove 42 around the bottom of the buoyancy body 40, the floating efficiency of the buoyancy body 40 is further improved.

At this time, with the rainwater flowing into the manhole, dirt, which is a cause of odor generation, that is, debris such as fallen leaves may be introduced together. The present invention by installing a screen 60 as shown in Figure 6a to the top of the collecting plate 30 in order to block such dirt from entering the inside of the manhole to filter out sediments or contaminants such as sand contained in the inflow water Foreign matter may be caught between the buoyancy body 40 and the collecting plate 30 to prevent the generation of a bad smell flow gap.

In addition, as shown in FIG. 6B, instead of the screen 60, the locking jaw 62 is formed so that dirt is caught on the upper periphery of the landing hole 32, and the locking jaw 62 is formed of a mesh having a plurality of holes. Rainwater can pass through while pollutants can be trapped.

In addition, when the buoyancy body 40 is floated due to the buoyancy due to the inflow water, the side guide 52 of the guide 50 limits the moving range of the buoyancy body 40 so that it is always placed on the mounting surface 36 of the drain hole 38. After the drainage is completed, the buoyancy body 40 is seated on the mounting surface 36. Of course, there may be a slight positional shift, but since the displacement is allowed only in the mounting surface 36, the buoyancy body 40 in a state other than the drainage always keeps the drain hole 38 completely blocked.

The present invention is not limited to the above embodiments, and various modifications can be made within the scope of the technical idea of the present invention.

As described above, according to the present invention, since the collecting plate having the buoyancy body 40 is installed under the manhole cover, the odor generated inside the manhole is prevented from emanating out of the manhole, but is introduced into the manhole from the outside of the manhole. It is possible to prevent the rain water to be blocked, it is easy to manufacture by simplifying the configuration of the malodor backflow prevention device has an effect that can be manufactured at a lower cost than the malodor backflow prevention device.

In addition, it is possible to catch the dirt flowing into the inside of the manhole, thereby blocking the source of the bad smell source, there is an effect that can solve the problems such as clogging the manhole by dirt.

In addition, when a backflow of sewage occurs during flooding, the buoyancy body is floated by the backflow water and thus allows a backflow, so that a manhole cover may be opened to prevent an accident that may occur.

Claims (9)

delete In the structure consisting of a manhole cover (2) having a drain hole 38 and a frame (1) having a seating jaw (11) on which the manhole cover (2) is seated, A collecting plate 30 positioned below the manhole cover 2 and having a drainage hole 38 formed in an upper and lower strait shape and having a drain hole 38 vertically penetrated therein; A buoyancy body 40 is formed on the upper surface of the drainage hole 38 of the water collecting plate 30 by being placed on the upper surface of the water collecting plate 30 and buoyant grooves 42 are formed around the bottom of the water collecting plate 30. )Wow, Located in the upper portion of the buoyancy body 40 of the manhole, characterized in that the guide 50 to allow the lifting and lowering operation of the buoyancy body 40 and the transverse movement is limited to the area of the drain hole 38 Odor backflow prevention device. In the structure consisting of a manhole cover (2) having a drain hole 38 and a frame (1) having a seating jaw (11) on which the manhole cover (2) is seated, A collecting plate 30 positioned below the manhole cover 2 and having a drainage hole 38 formed in an upper and lower strait shape and having a drain hole 38 vertically penetrated therein; Buoyancy body 40 is formed on the upper surface circumference of the drain hole 38 of the water collecting plate 30 and placed thereon, and at the same time, the buoyancy body 40 which is lifted and lowered by the buoyancy of the inflow water, Located in the upper portion of the buoyancy body 40 of the manhole, characterized in that the guide 50 to allow the lifting and lowering operation of the buoyancy body 40 and the transverse movement is limited to the area of the drain hole 38 Odor backflow prevention device. The method of claim 2 or 3, wherein the guide 50, Located in the upper circumference of the buoyancy body 40 and the side guide 52 to allow the movement of the east and limit the transverse direction only within the allowed range, The cap part prevents the inflow of the inflow water from the drainage hole 21 of the manhole cover 2 directly on the upper surface of the buoyancy body 40 while preventing the upper detachment of the buoyancy body 40 on the side guide 52. Manhole backflow prevention device, characterized in that consisting of 54). 5. A manhole backflow prevention device according to claim 4, characterized in that a flange (32) is formed around the water collecting plate (30) to be mounted on the frame (1). According to claim 5, The side guide 52a is fixed to the collecting plate 30 through the connecting table 31, The cap portion (54a) is separated from the side guides (52a) and a separate body is odor backflow prevention device of the manhole, characterized in that coupled to open and close. The apparatus of claim 4, wherein a flange (32) is formed around the collecting plate (30) to fix the flange (32) to the lower portion of the manhole cover (2). The method of claim 7, wherein the guide 50 is fixed to the bottom of the manhole cover (2), odor backflow prevention device, characterized in that installed. [5] The buoyancy body (40) of claim 4, wherein a vertical guide shaft (57) is provided at the center lower portion of the cap portion (54), and a shaft hole (58) is formed at the center portion of the buoyancy body (40) corresponding thereto. Odor backflow prevention device, characterized in that guided to the guide shaft (57).

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