JP4354045B2 - Existing pipe continuous water construction method and apparatus - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method and apparatus for unrestricted water construction of an existing pipeline, and a new method capable of carrying out construction such as water leakage repair and removal by a branch pipeline without blocking water flow to the existing pipeline. And an apparatus for the same.
[0002]
[Prior art]
Existing pipes will corrode, wear, and leak due to their long-term use, so such wear and leaks are repaired, and devices such as valves and meters are additionally inserted into the pipes, or branch pipes are installed. In many cases, these are taken out and combined as appropriate, or an expansion / contraction flexible pipe is inserted and other constructions are carried out. It is common.
[0003]
However, if the water flow of the existing pipeline is interrupted, the water supply / drainage operation using the pipeline will be stopped completely, or at least greatly restricted, and this will cause a major hindrance in the entire water supply / drainage system. In some cases, repairing water continuously such as in waterways is partly performed. That is, as such a conventional technique, a large cylindrical bowl-shaped case or a cover that encloses and surrounds a repair site with respect to an existing pipe line is provided, and a cutting machine or case for the existing pipe line is provided in the case or cover. The equipment is equipped with a slide valve that shuts off the existing pipe, and the existing pipe is cut by a cutting machine under the condition that the connecting sleeve is mounted on a slidable with the pipe as a guide. Thus, the cutting machine is once removed from the existing piping and retracted, and then the inside of the case is divided and cut off by the slide valve.
[0004]
Also, the position of the cutting machine once moved and retracted after the split seal in the case by the slide valve as described above is set in the insertion section in the pipeline, and then the slide valve that has been cut off and sealed is opened and the pipe The insertion section in the road is set in the cut-out existing pipe, and the connecting sleeve prepared as described above is further moved between the insertion section and the existing pipe in this state. After that, the water in the case is extracted from the drain outlet provided in the bottom of the case, and then the large case as described above is removed to make the insertion part continuous in the existing pipe line.
[0005]
[Problems to be solved by the invention]
The conventional continuous water pipe replacement method as described above requires a valve body opening / closing mechanism and the like, requires a considerably large facility mainly composed of a bowl-shaped cylindrical case, and requires a multistage process. Therefore, it is necessary to work for a long time, and there is a disadvantage that an increase in cost cannot be avoided.
[0006]
In addition, even if the pipe is indefinite water, a considerable amount of water spouts out of the case, and it is necessary to discharge the water at the upper part of the case or the lower part of the case appropriately after dividing and sealing the inside of the case with a slide valve. Since the slide valve simply seals the inside of the case, a considerable amount of running water is discharged in the large bowl-shaped cylindrical case as described above during work that takes a long time as described above. Have the disadvantages of being
[0007]
[Means for Solving the Problems]
The present invention has been repeatedly studied to eliminate the disadvantages and disadvantages of the prior art as described above, and has a rotating shaft in the middle, and a horizontal case in which a cutting machine and a charging pipe section are attached to the rotating shaft. By successfully cutting existing pipes and inserting new pipe parts, we succeeded in carrying out accurate pipe exchange operations with compact equipment in a relatively short period of time. It is as follows.
[0008]
(1) The horizontal case is attached to the existing pipe with the cutting mechanism for cutting the existing pipe line and the insertion body inserted into the cut existing pipe attached to the rotary shaft installed horizontally in the horizontal case. An existing pipe continuous water construction method characterized in that the existing pipe line is cut by the cutting mechanism and then the insertion part is inserted and connected between the cut parts of the existing pipe by the rotating shaft.
[0009]
(2) A connecting sleeve is attached to both ends of the insertion part to be inserted into the existing pipeline and attached to the rotary shaft, and the insertion part is inserted between the cut parts of the existing pipeline, and then the insertion part is inserted. The existing pipe unreserved water construction method according to the item (1), wherein the connection sleeve is partially moved on the existing pipe line by using the cut end portion of the existing pipe line as a guide to perform connection operation.
[0010]
(3) An existing pipe line is characterized in that a rotating shaft is installed horizontally in a horizontal case, and an existing pipe cutting mechanism and an insertion part inserted into the cut existing pipe line are attached to the rotating shaft. Water construction equipment.
[0011]
(4) The existing pipe according to (3) above, characterized in that a driving part for driving the cutting machine and the insertion part body mounting part and a driven part for transmitting the driving force from the driving mechanism are provided on the rotating shaft. Road continuous water construction equipment.
[0012]
The horizontal case is attached to the existing pipeline with a cutting mechanism that cuts the existing pipeline on the rotary shaft that is installed horizontally in the horizontal case and an insertion part that is inserted into the cut existing pipeline, After cutting the existing pipe line with the cutting mechanism, the insertion part is inserted and connected between the cutting parts of the existing pipe line by the rotating shaft, thereby cutting the existing pipe line and inserting part for the existing pipe line cutting part. The body insertion operation is performed continuously, enabling highly efficient and short-term insertion connection, and reducing the loss of water flowing in the pipes in the continuous water works.
[0013]
Connecting sleeves are attached to both ends of the insertion part to be inserted into the existing pipe and attached to the rotary shaft, and the insertion part and the existing pipe are inserted after the insertion part is inserted between the cut parts of the existing pipe. The operation of connecting the connecting portion of the existing pipe line to the connecting portion of the existing pipe line is carried out continuously by inserting the cut part of the insertion pipe body by partially moving the connecting sleeve on the existing pipe line using the cut end of the road as a guide. Ensure high efficiency.
[0014]
By adopting the horizontal case, the handling of the case along the direction of the target existing pipeline was obtained, and the rotary shaft was installed horizontally on the horizontal case, and the existing pipeline cutting mechanism was cut off on the rotary shaft. By installing the insertion part inserted between the existing pipes, the pipe cutting mechanism and the insertion part inserted between the cut existing pipes are set along the setting direction of the existing pipes and rotated. With the pivoting operation around the axis, the cutting machine can be taken out and the insertion part can be inserted simultaneously with the cutting of the existing pipe line, and the target work can be performed with high efficiency.
[0015]
Since the rotary shaft is provided with a drive unit for driving the cutting machine and the insertion unit body mounting portion and a driven unit for transmitting the driving force from the driving mechanism, it can be accurately obtained by a relatively simple and compact configuration around the rotary shaft. The cutting and insertion part insertion operation is realized.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
A specific embodiment of the present invention as described above will be described with reference to the accompanying drawings. In the present invention, as shown in FIGS. 1A to 1C, respectively, it is parallel to the axis of the existing pipeline 10. A horizontal cylindrical case 2 centering on a shaft 1 is adopted, and a cutting machine 3 is set below the case 2 so as to surround the existing pipe line 10 as shown in FIG. The cutting machine 3 is attached to the shaft 1 and is inserted into the existing pipe line 10 that is cut to face the cutting machine 3. The insertion part 4 to be mounted is attached.
[0017]
Further, the shaft member 1 is provided with a drive gear 5 and is rotated by receiving a drive from a driving mechanism 6, and a drive gear 7 provided separately drives the cutting machine 3 as shown in FIG. As shown in (A), the existing pipe 10 is cut by being driven through the drive gear 7 with the cutting machine 3 set to the existing pipe 10.
[0018]
Further, in the present invention, as shown in FIGS. 1A and 1B, the connection sleeve 8 is attached to both ends of the insertion portion 4 as described above, and the insertion portion 4 is formed between the cut portions of the existing pipe line 10 as shown in FIG. As shown in FIG. 1D, the connecting sleeve 8 is moved in the direction of the cut portion of the existing pipe line 10 as shown in FIG. The connection to the end of the cutting tube can be completed.
[0019]
As described above, according to the present invention, a case such as a horizontal cylinder is used, the cutting machine 3 and the insertion part 4 are set, the existing pipe line 10 is cut, and then the insertion part 4 is continuously connected to the existing pipe line. It is clear that a continuous connection operation can be performed without performing a special sealing operation or the like by feeding between the 10 cut ends, and it is clear that an efficient operation can be performed, and the fluid flowing in the existing pipeline 10 Is simply encapsulated in the case 2 and is not substantially washed away.
[0020]
【The invention's effect】
According to the present invention as described above, it is possible to smoothly perform the continuous water construction of the existing pipe line with relatively compact equipment and a small operation process, and to discharge the water in the case or to seal This is an invention that is industrially highly effective because it can smoothly carry out unreserved water construction without the operation of entering and exiting the body.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is an explanatory diagram showing a step-by-step process of a device according to the present invention and its existing pipeline non-blocking construction, and a longitudinal section perpendicular to the direction of the existing pipeline and a cross-sectional view along the direction of the existing pipeline A plan view is also shown as appropriate.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Shaft material 2 Horizontal cylindrical case 3 Cutting machine 4 Insertion body 5 in existing pipe line Drive gear 6 Drive mechanism 7 Drive gear 8 provided separately Connection sleeve 10 Existing pipe line

Claims (4)

A cutting mechanism that cuts an existing pipe line on a rotary shaft that is installed horizontally in the horizontal case and an insertion part body that is inserted into the cut existing pipe line are cut by rotating the rotary shaft. The horizontal case is attached to the existing pipe in a state where it is attached to the rotary shaft so that it can be directly replaced with the existing pipe line,
An existing pipe non-continuous water construction method, wherein the existing pipe line is cut by the cutting mechanism and then the insertion part is inserted and connected between the cut parts of the existing pipe line by the rotating shaft. Connecting sleeves are attached to both ends of the insertion part to be inserted into the existing pipe and attached to the rotary shaft, and the insertion part and the existing pipe are inserted after the insertion part is inserted between the cut parts of the existing pipe. 2. The existing pipe continuous water construction method according to claim 1, wherein the connection sleeve is partially moved on the existing pipe line by using the cut end portion of the road as a guide to perform connection operation. A cutting mechanism housed in a horizontal case, and a cutting mechanism that cuts an existing pipe line on a rotary shaft that is installed horizontally in the horizontal case, and an insertion part that is inserted into the cut existing pipe pipe. The horizontal case is attached to the existing pipeline in a state where the insertion portion is attached to the rotary shaft so as to be directly replaceable with the portion of the existing pipeline that has been cut. An existing pipe continuous water construction apparatus, wherein the existing pipe line is cut and then inserted between the cut parts of the existing pipe line by the rotating shaft . The existing pipe continuous water construction apparatus according to claim 3, wherein a driving unit for driving the cutting mechanism and the insertion body attaching portion and a driven unit for transmitting a driving force from the driving mechanism are provided on the rotating shaft. .

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