KR20020084866A - The pipe waterproof method - Google Patents

Abstract

PURPOSE: A method for stopping a drainpipe hole is provided to prevent a permeating phenomenon of water into a damaged part of a drainpipe above or under the ground by forming an expanding water stopper in an entrance of the drainpipe hole. CONSTITUTION: A drainpipe is formed by a PVC or a PE. The drainpipe is buried under the ground or adhered to a pier. A drainpipe hole is formed at a contact part between a manhole wall body and the drainpipe. A plurality of cables are inserted into the drainpipe hole. A plurality of empty drainpipe can be formed to prepare enlargement of the drainpipe. The drainpipe hole is stopped by using an expanding water stopper(6). The expanding water stopper(6) is separated from the drainpipe hole in a cable exchange process. A plurality of cable holes(7) is formed in the expanding water stopper(6). The number of the cable holes(7) corresponds to the number of the cables.

Description

Pipeline index construction method {THE PIPE WATERPROOF METHOD}

In the present invention, when the ground or underground pipeline (5) used for electricity, communication, etc. is aged or damaged and water is introduced through the pipeline (5), a stopper (6) is formed with a water-expandable index material at the inlet of the pipeline (2). The invention relates to a waterproofing method.

In the installation of cables such as electricity and communication, when installing one or several strands of cable 4, by making a conduit 5 made of PVC, PE or the like and inserting the cable 4 into the conduit 5 Protect the cable and replace the cable. In addition, there is no cable at present, but a plurality of pipelines are installed for future cable installation.

Pipe line (5) is made of PVC, PE, etc., if the pipe is broken or aged, water flows in, causing cable failure, making maintenance difficult, and in the case of underground manholes, weakens the structure of the manhole itself.

In addition, in the case of a manhole, when the adjacent manhole is flooded, the pipeline 5 acts as if it is a water pipe, so that all the manholes are flooded. Currently, there are many methods for waterproofing pipelines, but they are not completely waterproof when they are actually applied, it takes a lot of time to waterproof them, and if they need to be re-waterproofed by cable replacement, etc., they must be re-waterproofed. This has not been put to practical use.

The present invention is completely waterproof at the same time as the construction, it is a method that can simply waterproof the pipeline without additional construction even when there is a need for re-waterproof by the cable replacement work later.

1 is a schematic cross-sectional view of an existing manhole

Figure 2 is a detailed cross-sectional view of the existing manhole wall and pipe

3 is a cross-sectional view of the pipeline

4 is a plan view of the water expansion index stopper

5 is a perspective view of the water expansion index stopper

6 is a cross-sectional view of the water expansion index plug

7 is a cross-sectional view of the expansion socket

8 is a plan view of the expansion socket

9 is a cross-sectional view after attaching the extension socket to the manhole wall

10 is a front view after attaching the extension socket to the manhole wall.

11 is an exploded view of the stopper fixing device

12 is a stopper fixing device

13 is a cross-sectional view of installing the stopper fixing device in case of expansion socket installation

<Explanation of symbols for main parts of drawing>

1. Manhole Entrance 2. Pipeline

3. Manhole Wall 4. Cable

5. Pipe line 6. Water expansion index stopper

7. Cable hole 8. Expansion socket

9. Water expansion index ring 10. Anchor bolt

11.Flange 12. Stopper Lock

13. Stopper attachment ring

Underground manholes such as telecommunications, as shown in Figure 1, the cable 4 is introduced through a plurality of conduits (2), work for connection or branching inside the manhole, and proceeds to the next manhole.

Pipe line 5 is made of PVC, PE, etc., buried underground or attached to the ground such as a pier, and the part in contact with the manhole wall (3) forms a pipe (2) is inserted one or more cables. In addition, due to the need for further expansion, a plurality of pipelines without cables are installed.

The present invention is completely waterproof by blocking the conduit opening (2) with a water expansion index stopper (6) as shown in Figure 5, if the cable replacement work, etc. later need to remove the water expansion index stopper (6), cable replacement After completion of work, reinsert the water expansion index stopper to waterproof it.

Water expansion index stopper (6) is produced by making the cable hole (7) according to the pipe line and the number of cables. In addition, the upper portion of the water-expansion index stopper 6 is wide, and the lower part is made narrow, when the insertion proceeds by inserting first from the narrow surface when inserting the pipe-hole 2, the outside of the water-expansion index stopper 6 is the pipeline-gut (2). It is in close contact with the cable hole (7) is the upper portion is narrow, the lower portion is made wide, is inserted from the wide portion to make the narrow portion in close contact with the cable (4). In this case, the water expansion index stopper 6 is waterproof by the elongation of the water itself, and the water expansion index stopper 6 is completely waterproof even when water is filled in the conduit 5.

Pipe line 5 is made of PVC, PE, etc. are made to a certain standard, such as 50mm, 80mm, 100mm, l75mm, but in reality, pipes 5 of various sizes and various materials are installed. Therefore, it is necessary to standardize and manage the various pipe ducts 2 according to the various pipes in this standard. In this case, the expansion sockets 8 as shown in FIG. 7 are installed in the pipe ducts 2. Expansion socket (8) is made of two separate and bonded using a flange (11) in the field. The combined extension socket 8 is fixed to the manhole wall 3 using the anchor bolt 10, and the expansion socket 8 is inserted between the manhole wall 3 and the expansion socket 8 by inserting a water expansion index ring 9. Waterproof between (8) and manhole wall (3).

After the water expansion index stopper 6 is inserted into the pipeline port 2 or the expansion socket 8, and the watertight index stopper 6 is released, the water expansion index stopper 6 may escape due to an increase in the water pressure of the pipeline 5; Attach the stopper fixing device 12 as shown in 11 to the outside of the water expansion index stopper 6. The stopper fixing device 12 is attached using a stopper fixing device attachment ring 13, and the stopper fixing device attachment ring 13 is fixed by attaching the anchor bolt 10 to the manhole wall 3. When the extension socket 8 is installed, the stopper attachment ring 14 is fixed to the flange 11 of the extension socket 8.

In the present invention, when water flows due to aging or breakage of the pipe line, it causes an obstacle in maintenance, which is the purpose of the manhole itself, and when the structure of the manhole is weakened, the water pipe is completely waterproofed to prolong the life of the manhole, and maintain a cable replacement work. It is a technique that facilitates repair.

Claims (4)

When water flows in through the pipeline 5 due to deterioration or damage of the pipeline 5 on the ground or underground, the pipeline port 2 is blocked with a rubber expansion water stopper 6 and a water expansion stopper ( 6) is a method of waterproofing by fixing using a stopper fixing device (12). According to claim 1, the water-expansion index stopper (6) is wide in the upper part and narrow in the lower part is easy to insert into the pipe duct (2) and the outside close to the pipeline, in the case of the pipeline, without the inner cable hole (7) In the case of a pipe line with a cable, a cable hole 7 is formed in accordance with the number of cables inserted into the pipe line, and the cable hole 7 has a narrow upper portion and a wider lower portion, so that the cable is closely adhered and waterproofed. Exponential stopper (6). According to claim 1, the size of the duct (2) is standardized, and the expansion socket (8) installed on the outside of the duct for the convenience of waterproof construction separated into two parts are combined into the flange 11 in the field, The manhole wall (2) is fixed to the anchor bolt (10), the expansion socket, characterized in that the water expansion index ring (9) is inserted between the manhole wall (2) and the expansion socket (8) to be waterproof. In order to fix the water-expansion stopper (6) according to claim 1, an attachment ring (13) is formed to connect the attachment ring (13) to the anchor bolt (10) fixed to the manhole wall (2). Plug closure device, characterized in that connected to the flange 11 of the expansion socket (8) is fixed.