KR100755997B1 - a manhole for prevention water incomming - Google Patents

Abstract

The present invention provides a connection space for connecting gas or water pipes and electric / communication cables underground, and a manhole having a sewage and rainwater inflow prevention structure to protect the connection by preventing the inflow of sewage and rainwater into the connection space. It relates to a sewage and rainwater inlet prevention portion at the inlet of the manhole housing to prevent sewage and rainwater penetrating into the interior of the manhole through the crack gap of the manhole cover and the cracked road surface around the manhole cover and prevent gas or water It provides the effect of protecting the connection of piping and electric / communication cable.

In addition, in the existing manhole, the inflow prevention part is inserted between the manhole housing and the manhole support, or the inflow prevention part is further provided on the inner side of the manhole support. It can provide the effect of maximizing the efficiency of installation work such as reducing construction cost and replacement cost.

Inflow prevention part, inflow blocking plate, inflow blocking cover, rib, support bar

Description

Manhole for prevention water incomming

1 is an exploded perspective view showing an embodiment of a manhole with a water inflow prevention structure of the present invention.

2 is a cross-sectional view of the combination of FIG.

Figure 3 is an exploded perspective view showing a second embodiment of the manhole with the inflow prevention structure of the present invention.

Figure 4 is an exploded perspective view showing a third embodiment of the manhole with the inflow prevention structure of the present invention.

5 is a cross-sectional view of the combination of FIG.

Figure 6 is a cross-sectional view showing an embodiment of a manhole with a water inflow prevention structure of the present invention.

Figure 7 is a cross-sectional view showing a fifth embodiment of the manhole with the inflow prevention structure of the present invention.

         Explanation of symbols on the main parts of the drawings

         100: manhole 200: manhole housing

         300: manhole support 400: manhole cover

         500: inflow prevention unit 510: inflow water blocking plate

         511: entrance 512: locking jaw

         513: top surface 514: side

         515: bottom 516: rib

         517: groove 518: jaw

         520: discharge pipe 530: inlet water blocking cover

         540: handle 550: support bar

         560: wing 570: fastening means

         600: binder

The present invention relates to a waterproof manhole for gas or water pipes and electrical / communication cables, and more particularly, to provide a connection space for connecting gas pipes and electrical / communication cables underground, and to provide a connection space for sewage and rainwater. It relates to a manhole having a water inlet prevention structure to prevent the inflow to protect the connection.

In general, the manhole is installed in the basement, connected to the gas pipe, water pipe, electrical / communication pipes, etc. are installed in the interior connection or electrical / communication terminal box.

The manhole for gas or water pipe and electric / communication cable is made of concrete beforehand, and then the manhole housing is dug up, and the manhole housing is buried therein, and the gas or water pipe and electric / communication cable are connected therein. Then, a means for covering the manhole cover made of metal on it is commonly used.

Since the conventional manhole is difficult to be standardized because it is installed in concrete, a void is formed in the joint portion between the manhole and the pipe so that sewage and rainwater penetrate into the inside of the manhole. The waterproof problem is not complete, and the phone's sensitivity is reduced or the call is not made due to leakage or short circuit due to water leakage, and the aging is quick and frequent replacement and repair due to the corrosion of the water valve and the joint flange of the gas or water pipe. There was a problem that the maintenance cost of the increased.

Therefore, in recent years, manhole housings are made of metal or steel, cast iron, reinforced synthetic resin, etc., and standardized to prevent sewage and rainwater from penetrating into the inside of the manhole. However, the gap or manhole cover of the manhole cover covered by the manhole housing is prevented. The problem of seeping into the interior of the manhole through crack cracks on the road surface was not overcome.

Accordingly, the present invention has been made to solve the fundamental problems of the prior art,

An object of the present invention is to provide a manhole having an inflow prevention structure to prevent the sewage and rainwater flowing along the gap of the manhole cover to prevent the sewage and rainwater flowing into the manhole housing by providing a sewage and rainwater inlet prevention portion at the inlet of the manhole housing.

In addition, an object of the present invention is to provide a manhole with an inflow prevention structure to facilitate the construction, shorten the construction period, and minimize the construction cost by allowing only the inflow prevention unit to be installed separately in the existing manhole housing. There is.

The present invention for achieving the above object is made of a manhole housing formed with a connection hole on the side and the inlet formed on the upper surface, a manhole support seated at the inlet of the manhole housing, and a manhole cover covering the upper surface of the manhole support In the manhole,

The upper surface of the manhole housing is provided with an inflow prevention portion, wherein the inflow prevention portion is formed in the center and the upper surface and the engaging jaw to the edge of the inlet and the inclined outward from the side and the side inclined downward from the upper surface An inflow and outflow blocking plate consisting of a bottom surface seated on an upper surface of the manhole housing; A rib having a discharge structure of sewage and rainwater by maintaining a gap with a manhole support on the bottom surface of the inflow water blocking plate; It is characterized in that it is formed by; coupled to the locking step of the inlet block to cover the inlet block to cover the inlet.

(Example)

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention as described above in more detail as follows.

1 is an exploded perspective view showing an embodiment of the manhole having the inflow prevention structure of the present invention, Figure 2 is a cross-sectional view of the coupling of Figure 1, Figure 3 is a second embodiment of the manhole with the inflow prevention structure of the present invention 4 is an exploded perspective view showing a third embodiment of the manhole having the inflow prevention structure of the present invention, Figure 5 is a cross-sectional view of the combination of Figure 3, Figure 6 of the manhole having the inflow prevention structure of the present invention 4 is a cross-sectional view showing an embodiment, Figure 7 is a cross-sectional view showing a fifth embodiment of a manhole with a water inflow prevention structure of the present invention, respectively.

As can be seen from the present invention, a manhole housing 200 having a pipe connection hole 210 formed on a side surface and an inlet 220 formed on an upper surface thereof, and a manhole support seated at an inlet of the manhole housing 200 ( 300, a manhole cover 400 covering the upper surface of the manhole support 300, and a inflow prevention part 500 mounted between the manhole housing 200 and the manhole support 300.

The manhole housing 200 may be formed in a tubular shape, and may have a flat cross section in a shape suitable for a situation in the shape of a circle, a square, a triangle, and a polygon, and corresponding to the shape of the entrance of the manhole housing 200. The shape of the manhole support 300 and the inflow prevention part 500 may be different.

The manhole housing 200 and the manhole support 300 and the manhole cover 400 is easy and simple to manufacture is preferably formed of metal or iron, especially steel or cast iron, so as to shorten the work process.

The inflow prevention unit 500 has an inlet 511 at the center and an upper surface 513 having a locking jaw 512 formed at the edge of the inlet 511, and inclined downward from the upper surface 513. The side surface 514, the bottom surface 515 which is bent outwardly from the side surface 514 and seated on the upper surface of the manhole housing 200, and maintains a gap between the manhole support 300 on the bottom surface 515 and the sewage and The inflow water blocking plate 510 which is formed with a plurality of ribs 516 to have an excellent discharge structure, and the inflow water blocking cover 530 which is combined with the engaging jaw 512 of the inflow water blocking plate 510 to cover the inlet; Form.

At this time, the inlet of the inlet water blocking plate 510 is equal to or larger than the inlet 310 formed in the manhole support 300 to prevent the operator from entering and exiting the inside of the manhole.

In addition, the rib 516 formed on the bottom surface of the inflow blocking plate 510 may be formed integrally with the bottom surface 515, or may be equipped with a separate rib 516, not integral, as shown in FIG. As shown, the manhole support 300 may be seated on the bottom surface 515 of the inflow blocking plate 510 without the rib 516.

At this time, when the manhole support is seated on the bottom surface of the inflow water blocking plate without ribs, one side of the manhole support is perforated and a drain pipe is inserted therein to discharge the introduced sewage and rainwater to the outside.

In addition, the bottom surface 515 of the inflow water blocking plate 510 is provided with a fixed jaw 518 protruding downward so that the fixing jaw 518 is fitted into the inlet 220 of the manhole housing 200 and the inlet 220. Hold it so that it stays in place.

The inflow water blocking cover 530 is formed in a curved shape with a convex center so that the sewage and rainwater flowing into the gap of the manhole cover 400 fall on the upper surface of the inflow water blocking cover 530, and the inflow water sloped downward toward the lower portion. The side surface 514 of the blocking plate 510 is formed to be drawn out through the bottom surface 515.

In addition, a handle 540 is provided at the center of the inflow water blocking cover 530 so that an operator can open and close the inflow water blocking cover 530 more conveniently.

In addition, the inflow blocking plate 510 and the inflow blocking cover 530 are preferably made of glass fiber reinforced plastic (FRP) having light, durable and non-corrosive properties.

Referring to the installation process of the manhole with the inflow prevention structure of the present invention as follows.

First, the manhole housing 200 is left as it is by digging out the ground around the existing manhole, the manhole support 300 is removed, and then the inflow blocking plate 510 is placed on the upper surface of the manhole housing 200, but the inflow blocking plate 510 At the same time, the fixing jaw of the manhole housing 200 is inserted into the inlet of the manhole housing 200 so that the fixing jaw 518 is positioned on the upper surface of the manhole housing 200. It is applied by applying a waterproof mortar layer (FRP waterproof adhesive) 600 to play a role.

On the upper surface of the waterproof mortar layer 600 coated on the bottom surface of the inflow water blocking plate 510, a plurality of ribs are radially radiated to maintain a discharge structure of sewage and rainwater by maintaining a gap with the bottom surface 515 of the inflow water blocking plate 510. 516 is attached, and the manhole support 300 is placed on the upper surface of the rib 516.

In addition, the engaging jaw 512 formed on the upper surface of the inflow block 510 is coupled to the inflow block 530 to cover the inlet 511 of the inflow block 510, and the manhole support 300 The upper surface of the manhole cover 400 is enclosed to cover the entrance of the manhole support 300.

At this time, gravel is introduced from the upper surface of the manhole housing 200 to the lower outer side of the manhole support 300 to smoothly discharge the sewage / water, and the manhole by applying a concrete layer on the upper surface of the gravel, that is, the upper side of the manhole support. Fixing the pedestal 300, by coating asphalt on the upper surface of the concrete layer to form a surface layer having the same height as the manhole cover 400.

As such, the sewage and rainwater penetrating into the interior through the crack of the manhole cover 400 and the cracked surface of the damaged road around the manhole cover 400 fall on the inflow blocking cover 530 and incline toward the bottom through the curved portion. Along the side 514 of the 510 to the bottom surface 515 is a natural drainage to the outside of the manhole.

As shown in FIGS. 3 and 4, another embodiment of the inflow prevention part 500 of the present invention forms an inlet 511 at a center thereof, and an inflow water having a latching jaw 512 formed at an edge of the inlet 511. Blocking plate 510; A support bar 550 fixed to the bottom of the inflow block 510 to reinforce and support the inflow block 510; An inlet water blocking cover 530 coupled to the catching jaw 512 of the inlet water blocking plate 510 to cover the inlet 511; It consists of; discharge pipe 520 penetrating the manhole support 300 to the bottom surface 515 of the inflow block plate 510.

The inflow prevention unit integrally forms a supporting bar on the bottom surface of the inflow blocking plate 510, and then waterproof mortar on the outer edge of the inflow blocking plate 510 and the upper and lower surfaces of the supporting bar on the inner surface of the manhole support plate 300. (FRP waterproof adhesive) (600) to be bonded together to manufacture.

Therefore, in the construction site, after removing the existing manhole support 300 on the upper surface of the manhole housing 200, the manhole support provided with the inflow prevention unit 500 only need to be replaced, so there is no need to change the existing manhole into a whole container. Easy construction will shorten the construction period and reduce construction and replacement costs.

In addition, the inflow prevention unit 500 is integrally formed with the support bar 550 on the bottom surface of the inflow water blocking plate 510, cut in half around the center and formed in a separated state as both sides of the separation surface. After forming the corresponding wing piece 560 is manufactured to be coupled and separated by the fastening means 570 on both sides of the wing piece 560.

This is to make it easy to insert into the manhole support after separating in half because the entire inflow prevention unit 500 is not inserted into the inlet of the manhole support.

Therefore, in the construction site, the water inlet prevention part 500 is inserted through the inlet of the existing manhole support 300 by half and then the fastening means 570 of the separated inflow prevention part 500 at the bottom of the manhole support 300. When coupled to the upper side and then pushed upward to the upper and lower surfaces of the inlet blocker 510 outer edge and the support bar 550 that is caught on the inner inclined surface of the manhole support stand 300 (FRP waterproof adhesive) ( 600) to complete.

Therefore, it can be utilized as it is without removing the existing manhole support can be maximized the efficiency of installation work, such as reducing the replacement cost.

Further, as shown in FIG. 6, another embodiment of the inflow preventing unit 500 is the same as the other side, but the upper surface 513 of the inflow blocking plate 510 is opened and inclined toward the lower side 514. And, formed to cover the inclined side 514 to form an inlet water blocking cover 530 to cover the inlet 511 to increase the width of the inlet 511 so that the operator to enter and exit the manhole more convenient It is also a preferred embodiment to form.

Although the present invention has been shown and described with reference to certain preferred embodiments, the present invention is not limited to the above-described embodiments, and the general knowledge in the art to which the present invention pertains falls within the scope of the present invention. Various alternative changes and modifications will be possible by the possessor.

As described above, the present invention is provided with an inflow water prevention unit at the inlet of the manhole housing to prevent the sewage and rainwater from entering the manhole housing, thereby effectively protecting the gas or water pipe and the connection of the electric / communication cable. have.

In addition, the present invention is to insert the inflow prevention part between the manhole housing and the manhole support in the existing manhole, or to replace the existing manhole support at the construction site after manufacturing the finished product with an inflow prevention part on the inner surface of the manhole support Therefore, the construction is easy and the construction period can be shortened, and the existing manholes do not need to be replaced with the entire manhole, thereby reducing the replacement cost and construction cost, thereby maximizing the efficiency of the construction work.

Claims (4)

The manhole housing 300 and the manhole support 300 which are formed at the inlet 220 of the manhole housing 200 and the manhole housing 200 having the inlet 220 formed on the side and the inlet 220 formed on the side thereof. In the manhole 100 consisting of a manhole cover 400 covering the upper surface of the), The inflow prevention unit 500 has an upper surface 513 formed with an inlet 511 at the center and a locking projection 512 protruding upward toward the edge of the inlet 511, and a lower portion from the upper surface 513. An inflow and outflow blocking plate 510 formed of an inclined side surface 514 and a bottom surface 515 bent outwardly from the side surface 514 and seated on an upper surface of the manhole housing 200; A plurality of ribs 516 formed on the bottom surface 515 of the inflow blocking plate 510 so as to have a discharge structure of filthy water by maintaining a distance from the manhole support 300; The manhole having an inflow water prevention structure, characterized in that consisting of; inlet and water blocking plate 510 is coupled to the engaging jaw 512 of the inflow water blocking plate 510 to cover the inlet 511. The method of claim 1, The inflow prevention structure, characterized in that the bottom surface 515 of the inflow block 510 is further provided with a downwardly projected fixing jaw 518 to hold the manhole housing 200 in place. Equipped manhole. The method of claim 1, The inlet water blocking cover 530 is provided with a handle 540 in the center of the manhole having a water inlet prevention structure, characterized in that further provided. The method of claim 1, The inflow water prevention part 500 includes an inflow water blocking plate 510 having an inlet 511 formed at a center thereof and a locking jaw 512 protruding upwardly toward an edge of the inlet 511; A support bar 550 fixed to the bottom surface of the inflow block 510 and an inner surface of the manhole support 300 to reinforce and support the inflow block 510; An inlet water blocking cover 530 that is coupled to the locking step 512 of the inlet water blocking plate 510 to cover the inlet 511; A manhole having an inflow prevention structure, characterized in that consisting of; discharge pipe 520 penetrating through the manhole support 300 to the inlet block 515.

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