KR200413252Y1 - The water leakage prevention constructure of a Manhole - Google Patents

Abstract

The present invention disclosed relates to a manhole used for sewerage, roads, rivers, environmental facility construction, and the like, in particular, by improving the connection structure between the manhole and the drain pipe connected thereto, thereby improving the sealing performance of the connection part such as wastewater and wastewater in the manhole. The present invention relates to a manhole leak prevention structure that can completely block leakage.

Technical configuration of the present invention, the key hole is drilled so that the drain pipe can be connected to the side wall of the manhole buried in the ground, the key hole is connected to the drain pipe via a connecting socket, the connection socket, hollow hollow Bonding gasket which is fixed to the inner diameter of the keyhole through an adhesive, while a flange is integrally formed along the outer circumference at one end thereof so that the flange closely adheres to the outer wall of the manhole during assembly, thereby improving watertightness; It is a hollow hollow tube, which is fixed and adhered to the outer diameter of the end of the drain pipe through an adhesive, and is made of an elastic material, a part of which is fitted to the inner diameter of the binding gasket in an interference fit type, and one side of the flange is integrally formed along the outer circumference thereof. Wherein the flange comprises a rubber gasket in close contact with the flange of the binding gasket during assembly. It is the summary of the thing.

Manhole, Keyhole, Drainage, Leakage Prevention, Connecting Socket

Description

The water leakage prevention constructure of a Manhole for sewers, roads, rivers, and environmental facilities construction

1 is a cross-sectional view showing the configuration of a conventional general manhole.

Figure 2 is an exploded perspective view according to the manhole leakage preventing structure according to the present invention.

Figure 3 is a perspective view of the cut in a coupled state according to FIG.

<Code Description of Major Parts of Drawing>

1 ... manhole

2.Connector socket

3.drain

10 ... key hall

20 ... Binding Gasket

22 ... rubber gasket

202 ... wedge locking groove

222 ... wedge clamp

The present invention relates to a leak-proof structure of the manhole used for sewerage, roads, rivers, environmental facilities construction, more specifically, through the improvement of the connection structure between the manhole and the drain pipe connected to the manhole by improving the sealing performance of the connection part The present invention relates to a manhole leak prevention structure that can completely block leakage of sewage and wastewater.

A manhole is a facility that allows people to enter and check the underground sewage pipes, water pipes, underground cables, and pavement, etc., where the thickness or direction of the pipe changes, the starting point, the intersection point, and the middle of the long straight part. Is installed on. The installation distance of such a manhole is about 50-100 m or 100-150 m, and it is usually installed just above a conduit.

1 is a cross-sectional view showing the configuration of a conventional general manhole. Conventional manholes are perforated in the keyhole 110 for the connection of the drain pipe on the side wall surface of the manhole 100, which is open for entry and exit, and the manhole hole 210 perforated slab is mounted on the top The manhole cover 300 is sealed by the manhole cover 300. In addition, an invert 130 is formed at the bottom of the manhole 100 to prevent hydraulic loss due to rapid cross-sectional expansion / contraction of the inflow pipe / outflow pipe.

The key hole 110 is provided with a connection socket 140 for connection to the waste water inlet pipe / outlet pipe (hereinafter referred to as "drainage pipe"). The inlet socket 140 is connected to the invert 130 and the front end of the drain pipe (P) is fitted so that the waste water flows, and for the connection with the socket 150, an extended step is formed at the tip of the drain pipe to the rear of the step jaw. The rubber packing 150 for preventing the leakage of sewage is fitted. A flange 160 is provided at the outer circumference of the drain pipe behind the rubber packing 150, and the flange 160 is fastened to the connector socket 140 as a bolt B to include a rubber packing 150. To the connector socket 140 side tightly fixed.

In the conventional installation of the connector socket 140 in the keyhole of the manhole, first, the diameter of the keyhole is formed so as to be formed at least as large as the diameter of the connector socket when the manhole is manufactured by concrete pouring, and then the keyhole of the manufactured manhole. Insert the connector socket 140 into the.

Thereafter, by injecting the mortar 170 and the like into the space formed due to the difference in diameter between the key hole and the connector socket 140, there is no gap between the key hole and the connector socket 140.

However, in the related art, when the injection of the mortar that fixes the connector socket to the keyhole of the manhole is poor, the watertightness between the connector socket and the keyhole of the manhole is poor and eventually, there is a problem that the waste water is leaked through the gap. In other words, due to the change of temperature and external impacts depending on the season and the impact of the uplift and settlement of the ground, the mortar inlet is easily damaged and water-tightness is degraded. There is a disadvantage that leads to breakage of key holes or sockets.

The present invention has been made to solve the above-described problems, by connecting the drain pipe to the key hole formed in the manhole using gaskets made of elastic material, the existing gap between the drain pipe and the joint of the manhole It can be sealed by simply attaching a gasket without using the filling method, and it provides a manhole leak prevention structure for sewer, road, river, and environmental facility construction that has simple construction and solid binding force and excellent watertightness. Its purpose is to.

In order to achieve the above object, the present invention is a keyhole perforated so that the drain pipe can be connected to the sidewall of the manhole buried in the ground, the keyhole in the manhole structure is connected to the drain pipe, the hollow hollow tube Bonding gasket which is fixed to the inner diameter of the key hole through the adhesive, while one side of the flange is integrally formed along the outer periphery and the flange is in close contact with the outer wall of the manhole during assembly to improve the watertightness;

The hollow hollow tube is fixed by adhesive to the outer diameter of the end of the drain pipe through an adhesive, and is made of an elastic material, a part of which is fitted into the inner diameter of the binding gasket in the form of an interference fit, and one side of the flange is integrally formed along the outer circumference thereof. It is formed to provide a manhole leak prevention structure comprising a; rubber gasket which is in close contact with the flange of the binding gasket during assembly.

Here, in order to improve the watertightness and the binding force between the binding gasket and the rubber gasket joint to be fitted thereto, a wedge-shaped fastening groove is formed along the inner circumference of the inner surface of the binding gasket and the outer circumference of the outer circumference of the rubber gasket In accordance with the present invention, a fastening protrusion having a shape corresponding to the fastening groove may be formed.

In addition, the other end of the rubber gasket applied to the present invention will have at least one incision to be configured so that the rubber gasket may have elastic in the radial direction.

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

Figure 2 is an exploded perspective view according to the manhole leakage preventing structure according to the present invention, Figure 3 is a perspective view of the coupled state shown in the coupled state according to FIG.

The manhole leakage preventing structure according to the present invention is embedded in the ground and the manhole (1) having a keyhole (10) formed on the side wall and the drain pipe (3) fitted in the keyhole (10) of the manhole (1) between them At the same time, it is connected to the connecting socket 2 having excellent sealing property and is characterized in that it is configured so that no leakage occurs at the joint.

Specifically, the manhole 1 has a structure in which a keyhole 10 is drilled in the side wall for connection with the drain pipe 3, and an entrance for opening and exiting the worker is opened on the upper side thereof. Here, the manhole cover 12 is fixed to the upper part of the manhole around the open entrance through an anchor bolt (not shown), and the manhole cover 14 is seated on the manhole cover 12 to seal the entrance formed in the manhole. .

The key hole 10 of the manhole 1 is fitted with a drain pipe 3 through the connection socket 2 to allow the wastewater to flow into or out of the manhole. The drain pipe (3) may be generally used socket-type fume pipe of the concrete material or perforated pipe of PE material.

In particular, the connection socket (2) applied to the present invention, the binding gasket 20 is inserted into the key hole 10 and the elastic pipe which is fitted to the inner end of the binding gasket 20 when assembled to be mounted on the outer diameter of the end of the drain pipe (3) It consists of the rubber gasket 22 of the raw material.

The binding gasket 20 is a hollow hollow tube and is fixed to the inner diameter of the key hole 10 through an adhesive. The binding gasket 20 is made of an elastic material, and the flange 200 is integrally formed at one end of the flange 200 along its outer circumference so that the flange 200 closely adheres to the outer wall of the manhole around the key hole 10 during assembly. This improves the watertightness of the joint part.

The rubber gasket 22 is also a hollow hollow tube fixed to the outer end of the drain pipe 3 through an adhesive. Such a rubber gasket 22 may be partially fitted into the binding gasket 20 inner diameter in an interference fit type, and at the same time, the rubber gasket 22 may be made of an elastic material so that a gap does not occur in the joint portion. In addition, the flange 220 is integrally formed along the outer circumference at one end thereof, and when the assembly is performed, the flange 220 is in close contact with the flange 200 of the binding gasket to enlarge the area in surface contact, thereby more effectively leaking water. Block it.

Here, in the center of the inner circumferential surface of the binding gasket 20 to further improve the watertightness and the binding force between the binding gasket 20 and the rubber gasket 22 fittings fitted thereto, a wedge-shaped fastening groove is formed along the circumference of the inner circumferential surface thereof. 202 may be formed and a fastening protrusion 222 having a shape corresponding to the fastening groove 202 may be formed in the center of the outer circumferential surface of the rubber gasket 22. This further improves the binding force between both gaskets, thereby minimizing the drainage from the manhole during ground subsidence, and at the same time, the contact area between the two gaskets can be enlarged due to the formation of the projections, thereby improving the watertightness. In addition, the protrusion 222 applied to the present invention has a wedge-shaped protrusion having a one-way inclination angle, so that when the rubber gasket 22 is fitted into the binding gasket 20 once, it is hardly separated even by any external force, so that the binding force is very high. Robust

In addition, it is preferable that the other end of the rubber gasket 22 applied to the present invention has at least one cutout 224 so that the front end of the rubber gasket 22 may have elasticity in a radial direction. In this case, when the rubber gasket 22 is connected to the inner end of the binding gasket 20 in an interference fit type, the rubber gasket 22 is elastically compressed to some extent, thereby ensuring ease of assembly. At this time, the depth of formation of the cutout 224 should be determined within the allowable range so that no leakage occurs through the cutout after connecting both gaskets 20 and 22.

According to the present invention having the above configuration, the binding gasket 20 is fixed to the key hole 10 perforated on both sidewall surfaces of the manhole through adhesive, but the flange 200 is formed on the outer periphery of the binding gasket 20. Is formed to be in contact with the manhole outer wall around the key hole 10, sufficient watertightness between the manhole and the binding gasket 20 is secured, the inner end of the binding gasket 20 is fitted to one end of the drain pipe (3) and the elastic material As the rubber gasket 22 is assembled into an interference fit type, there is almost no gap between the binding gasket 20 and the rubber gasket 22, thereby improving watertightness. As a result, due to the improved watertightness of the manhole and drain pipe joints, it is possible to solve the problem of leakage of wastewater from the manhole, thereby preventing environmental pollution.

As described above, according to the manhole leak prevention structure of the present invention, the binding gasket is fixed to the keyhole perforated on both sidewalls of the manhole through adhesive, while the inner end of the binding gasket is fitted to the end of the drain pipe to be fixed through the adhesive. A rubber gasket made of an elastic material is inserted to tightly bind the drain pipe to the key hole in the manhole. Accordingly, the gap between the drain pipe and the pipe joint is securely sealed by the gaskets to prevent the wastewater flowing into the manhole from leaking to the surrounding soil and the ground, as well as the groundwater discharged from the surrounding soil into the manhole. Inflow can be prevented.

In other words, the gasket made of elastic material can be sufficiently sealed by simply installing a gasket using an adhesive without closing the gap generated between the drain pipe and the joint of the manhole by the conventional mortar filling method. It also has strong binding force and excellent watertightness.

Although the present invention has been illustrated and described in connection with specific embodiments, it is understood that the present invention can be variously modified and changed without departing from the spirit or the field of the present invention provided by the following utility model registration claims. It will be appreciated that those skilled in the art can easily know.

Claims (3)

In the manhole structure in which a keyhole is drilled to connect the drain pipe to the sidewall of the manhole buried in the ground, and the drainage pipe is connected to the keyhole through a connecting socket. The connecting socket The hollow hollow tube is fixed to the inner diameter of the keyhole through an adhesive, while a flange is integrally formed along one outer end thereof so that the flange closely adheres to the outer wall of the manhole during assembly to improve watertightness. Binding gaskets; The hollow hollow tube is fixed by adhesive to the outer diameter of the end of the drain pipe through an adhesive, and is made of an elastic material, a part of which is fitted into the inner diameter of the binding gasket in the form of an interference fit, and one side of the flange is integrally formed along the outer circumference thereof. The manhole leak prevention structure used for sewerage, roads, rivers, environmental facility construction, characterized in that it comprises; a rubber gasket formed so that the flange is in close contact with the flange of the binding gasket during assembly. The method of claim 1, In the center of the binding gasket inner circumferential surface is formed a wedge-shaped fastening groove further along the inner circumferential surface, the center of the rubber gasket outer peripheral surface is characterized in that the fastening projection of the shape corresponding to the fastening groove is further formed along the outer circumferential surface Manhole leak prevention structure used for sewer, road, river, environmental facility construction. The method according to claim 1 or 2, Manhole leak prevention structure used for sewers, roads, rivers, environmental facilities, etc., characterized in that the rubber gasket has at least one incision at the other end of the rubber gasket so that the rubber gasket can have elasticity in a radial direction.

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