KR100810425B1 - Glass-fiber reinforced plastics manhole having side contact type sealing rubber ring - Google Patents

Abstract

A glass fiber reinforced plastic manhole having a side contact type sealing rubber ring is provided to have no necessity for detaching a sealing rubber ring when regulating the height of a manhole in a construction site, to have no necessity for attaching a separate sealing rubber ring in a construction site by attaching a sealing rubber ring to an upper slab in a factory and delivering the upper slab to the construction site, to prevent the formation of a gap even if the upper vehicle load is increased and to prevent the inflow of leachate to the inside of a manhole and the outflow of water from a manhole. A glass fiber reinforced plastic manhole having a side contact type sealing rubber ring comprises a glass fiber reinforced plastic main body(10) integrated with connecting pipes(12), a concrete lower slab(20b) installed to insert the bottom of the main body, and a concrete upper slab(20a) installed to the top of the main body and provided with a projecting part(21) inserted to the inside of the main body or fitted with the main body and a contact part(22) contacted to the top of the main body, wherein a sealing rubber ring(50) is installed to the contact surface of the main body of the projecting part and provided with plural projections on the contact surface with the main body to improve watertight capacity, and a connecting ring(40) is installed to the projecting part of the concrete upper slab and the sealing rubber ring is inserted/coupled to the connecting ring to be buried/installed to the concrete upper slab to prevent the separation of the sealing rubber ring and to prevent the inflow of leachate to the inside of the main body or the outflow of water from the main body.

Description

Glass-fiber reinforced plastics manhole having side contact type sealing rubber ring}

The present invention relates to a glass fiber reinforced plastic manhole with improved water tightness at a joint with a concrete upper slab.

In general, manholes are holes that allow people to enter and exit the road, and the place where they are installed is installed in places where the thickness or direction of the pipe changes, the starting point or intersection, and the middle of the long straight part. do.

5 is a longitudinal cross-sectional view of a manhole that is generally used, the manhole is formed integrally with the connecting pipe 12 on both sides of the main body 10, the upper and lower parts of the main body 10 is formed with a slab (20a, 20b), The lid 30 is installed at the upper center of the main body 10. And a ladder 14 is provided inside the main body 10.

These manholes are mainly made of concrete, and use concrete ready-made products that are cast in the form of concrete or manufactured in a certain form.

When manufactured and installed in one-piece concrete, its own elasticity is insufficient, and durability due to vibration of the ground is not sufficient, and watertightness is not good, resulting in a short service life.

The present applicant has proposed a manhole made of a glass-fiber reinforced plastics (GRP) tube of the manhole body in order to solve the above problems of the conventional concrete integrated manhole. At this time, the watertight rubber ring was mounted on the upper end of the GRP pipe constituting the main body to ensure watertightness at the junction of the GRP pipe and the upper slab.

However, when the height adjustment of the manhole occurs in the field, a problem arises in that the watertight rubber ring is removed.

In addition, the gap between the GRP pipe and the upper slab caused by the upper vehicle load caused the watertight rubber ring to be detached.Therefore, the GRP pipe must be cut during height adjustment, so the top surface of the GRP pipe is uneven after cutting. When the concrete upper slab is mounted, there is a problem in that the watertightness of the joint between the upper slab and the GRP pipe is inferior, such as a problem of inflow of leachate into the manhole or outflow of water in the manhole.

The present invention has been created in view of the above problems, there is no need to remove the water-tight rubber ring when adjusting the height of the manhole in the field, and the water-tight rubber ring is delivered to the upper slab in the factory, so the watertight separately at the construction site It is not necessary to install the rubber ring for the purpose and to provide the joint structure of the glass fiber reinforced plastic manhole body and the concrete upper slab which does not generate play even if the upper vehicle load increases and does not generate inflow and outflow into the manhole. have.

The present invention is a glass fiber reinforced plastic body formed integrally with the connecting pipe on both sides, a concrete lower slab is installed so that the lower end of the main body, the upper end of the main body is inserted into the main body or the main body is inserted The projecting portion and the contact portion in contact with the upper end of the main body is formed on the lower surface and the surface in contact with the main body of the protrusion includes a concrete upper slab is provided with a watertight rubber ring, wherein the protrusion of the concrete upper slab is connected A ring is embedded and the watertight rubber ring is inserted into and coupled to the connection ring, and is embedded in the concrete upper slab.

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In addition, the surface in contact with the water-tight rubber ring body is characterized in that a plurality of projections are formed.

According to the present invention, the following effects can be expected.

First, the conventional GRP manhole is inserted into the water-tight rubber ring at the top of the GRP pipe, so that a phenomenon occurs when the impact from the outside or during construction, but according to the present invention does not occur such problems improve the construction properties.

 Second, by using the upper slab of the water-tight rubber ring inserted form can be solved a number of problems (such as leachate inflow, outflow, out of the watertight rubber ring, etc.) when adjusting the height of the manhole in the field.

Third, one of the most important functions of the manhole is to maintain watertightness, and according to the present invention, perfect watertightness is ensured, thereby preventing secondary environmental pollution by sewage of wastewater and sewage treatment plant. Can be.

Fourth, by using the upper slab of the water-tight rubber ring is inserted in the factory can be loaded and delivered in a fully integrated form when the product shipped from the factory can be expected to economical effect by reducing the cost of transportation.

Fifth, it is easy to construct and compact by reducing the outer diameter of the slab by using the inner type upper slab compared to the existing outer type upper slab. It can be solved completely.

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

According to the structure of the upper slab used in the manhole, it is divided into an external slab and an internal slab, and is classified into an upper contact type and a side contact type depending on the position of the water milling ring. The present invention relates to a side close contact type, and will be described below divided into an external type slab and an internal type slab according to the structure of the upper slab.

1 is a partial cutaway perspective view showing a glass fiber reinforced plastic manhole according to an embodiment of the present invention, Figure 2 is a perspective view showing an upper slab applied to an embodiment of the present invention is well visible water-tight rubber ring It is shown.

As shown, the manhole according to the present embodiment is an internal type in which a lower portion of the upper slab is inserted into the main body, and the glass fiber reinforced plastic main body 10 having the connection pipe 12 integrally formed at both sides thereof, and Concrete lower slab 20b is installed so that the lower end of the main body 10, and the protrusion 21 is installed on the upper end of the main body 10, inserted into the main body 10 or the main body 10 is inserted ) And a contact portion 22 contacting the upper end of the main body 10 is formed on the lower surface, and the upper surface of the concrete slab provided with a watertight rubber ring 50 on the surface contacting the main body 10 of the protrusion 21. It consists of 20a.

The main body 10 is composed of a glass fiber reinforced plastic filled with a mortar in the middle to reduce the weight to improve workability and to increase the durability by absorbing vibration of the ground by its elasticity.

The upper slab 20a has a protrusion 21 inserted into the main body 10 and a contact portion 22 contacting the upper end of the main body 10 on the lower surface thereof, and the protrusion 21 has watertight rubber. Ring 50 is installed. In addition, a connection ring 40 is embedded in the protrusion 21 of the upper concrete slab 20a, and the watertight rubber ring 50 is inserted into the connection ring 40 to be coupled to the concrete upper slab 20a. It is installed in purchase.

Therefore, the separation of the rubber ring 50 for watertightness is prevented, and also the watertightness is improved to prevent the leachate from flowing into the body or outflow of water from the body.

At this time, a plurality of protrusions 51 are formed on the surface contacting the main body 10 of the watertight rubber ring 50 to further improve the watertightness.

Figure 3 is a partial cutaway perspective view showing a glass fiber reinforced plastic manhole according to another embodiment of the present invention, Figure 4 is a perspective view of the upper slab applied to another embodiment of the present invention is well visible water-tight rubber ring It is shown.

In the present embodiment, unlike the above-described embodiment, the main body 10 is inserted into the protrusion 21 of the upper slab 20a, and the rest of the configuration is the same as the above-described embodiment, and thus repeated description will be omitted. do.

Manhole manufacturing and installation method according to the present invention configured as described above are as follows.

The main body and the upper and lower slabs are all manufactured at the factory and brought into the installation site.In the case of the upper slab, after forming the formwork to form protrusions and contact parts on the lower surface, install the connecting ring and insert the watertight rubber ring into the connecting ring. Just pour concrete and cure.

The installation method is as simple as digging a hole in the manhole installation position, placing the lower slab, inserting the main body and placing the upper slab over it.

1 is a partial cutaway perspective view showing a glass fiber reinforced plastic manhole according to an embodiment of the present invention,

Figure 2 is a perspective view of the upper slab applied to an embodiment of the present invention is shown to be well visible water-tight rubber ring.

Figure 3 is a partially cut perspective view showing a glass fiber reinforced plastic manhole according to another embodiment of the present invention,

Figure 4 is a perspective view of the upper slab applied to another embodiment of the present invention is shown to be well visible water-tight rubber ring.

5 is a longitudinal sectional view of a manhole which is generally used.

Claims (3)

Glass fiber reinforced plastic body 10 is formed integrally with the connecting pipe 12 on both sides, And the lower concrete slab 20b is installed so that the lower end of the main body 10, It is installed on the upper end of the main body 10, the protrusion 21 is inserted into the main body 10 or the main body 10 is inserted and the contact portion 22 in contact with the upper end of the main body 10 on the lower surface A concrete upper slab 20a formed on the surface of the protrusion 21 and in contact with the main body 10 is provided with a watertight rubber ring 50. Here, the connection ring 40 is embedded in the protrusion 21 of the concrete upper slab 20a, the watertight rubber ring 50 is inserted into the connection ring 40 and coupled to the concrete upper slab 20a. Glass fiber reinforced plastic manhole, characterized in that the buried in the installation. delete The method of claim 1, A glass fiber reinforced plastic manhole, characterized in that a plurality of protrusions (51) are formed on the surface in contact with the main body (10) of the watertight rubber ring (50).

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