JP2001046988A - Method and device for washing/restoring sewage pipe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To restore the water discharge function of a sewage pipe in high efficiency and high quality by cleanly removing and washing the stuck or sedimented articles in the sewage pipe and the tree root entering into the sewage pipe. SOLUTION: This device has a structure in which the tip part 2 of a washing hose 3 to be inserted into the sewage pipe P is made freely rotatable to the washing hose 3 and a high pressure injection head 5 is provided at its tip. In the injection head 5, a slidable rubbing part 15 in which a rear side injection nozzle 8 having an inclination angle θ to the axial center 2A and slidable, rubbing pins 12 erected projectingly and surrounding a head main part 6 and having almost a cylindrical shape are provided, and high pressure rear side injection water from the rear side injection nozzle 8 is collided with the sewage pipe. In such a way, the injection head 5 is advanced by generating the revolving motion and rotating motion turning along the inner periphery of the sewage pipe, and the stuck sedimented articles are removed and the pipe is washed by the slidable, rubbing part 15.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a method for removing sediment from sewer pipes.
It relates to a method for cleaning and restoring sewer pipes used to recover the function by cleaning and restoring the inside of the sewer pipe when foreign matter etc. adheres and accumulates and becomes blocked, and a washing and repairing device used therefor. is there.

[0002]

2. Description of the Related Art Sewage pipes for draining rainwater, household wastewater, industrial wastewater, and the like, when used for a long period of time, may have sediment and foreign substances in the drainage gradually adhering and accumulating in the pipes, causing a blockage. is there. In such a state, it is necessary to remove and clean the deposits to restore the drainage function, and a method of sending pressurized water into the sewer pipe or passing a cleaning tool through the sewer pipe to remove the deposits. Etc. are adopted.

That is, among the conventional means, a "radial cutting blade tool" is protruded from the tip of a drive shaft which is driven by an engine to remove even hard deposits, and the deposition tool is used by the cutting blade tool. A rotary cutting blade type sewer pipe repair device that forcibly removes objects, or a high-pressure water jet nozzle at the tip of the water pipe revolves around the inner circumference of the sewer pipe,
A jet nozzle revolving type drain pipe cleaning device that removes and cleans deposits by high-pressure water jetted from the jet nozzle is used.

[0004]

The above-mentioned conventional rotary cutter repairing apparatus has the function of cutting off and removing deposits by the rotary cutter which joins the cutting edge to the inner periphery of the sewer pipe. It requires time and effort to set up work, and the sewer pipe inner wall may be damaged by the cutting blade. However, there is a disadvantage that the bent portion of the sewer pipe is not used.

[0005] On the other hand, the latter spray nozzle type washing apparatus can be commonly used for sewer pipes of various sizes so that it can be fed into a curved pipe and has excellent cleaning properties. However, the spray nozzle revolves (does not rotate). Since it is merely a cleaning action by spraying water under pressure, it is difficult to remove beautifully adhered sediment beautifully, and there is a problem that it is not possible to remove tree roots that have penetrated and extended from a seam of a sewer pipe. Therefore, tree roots that extend into the sewer in search of water must be cut off from the root,
It grows quickly and re-emits the sewer obstruction in a short time.

The present invention provides a method for cleaning and repairing a sewer pipe and a cleaning and repairing apparatus used for the method, which solves the above-mentioned disadvantages of the prior art.

[0007]

SUMMARY OF THE INVENTION The present invention for solving the above-mentioned technical problems is directed to a method for removing and depositing deposits in a sewer pipe by feeding a high-pressure water supply hose having a high-pressure water jet head at a front end into the sewer pipe. After that, the high-pressure water jet head injects high-pressure water backward in a direction inclined to the longitudinal axis of the high-pressure water jet head, and the rear jet high-pressure water impinges on the inner periphery of the sewer pipe. Thereby, the high-pressure water jet head is provided with a revolving motion rotating along the inner periphery of the sewer pipe and a rotation motion about the front-rear axis, and the high-pressure water jet head is sequentially advanced to cause the adhesion and deposition. A method of cleaning and restoring sewer pipes characterized by removing matter,

[0008] The front end of a high-pressure water supply hose for feeding into a sewer pipe is formed in a flexible hose portion provided with a rotatable high-pressure water injection head at the front end. A rear jet nozzle having an inclination angle with respect to the longitudinal axis of the ejection head, and a sewage pipe rubbing part having a columnar shape centered on the longitudinal axis, wherein the sewage pipe inner circumference is formed by the sewage pipe rubbing part. The apparatus for cleaning and restoring a sewer pipe used in the method for cleaning and restoring a sewer pipe according to the present invention, characterized by a structure for rubbing the sewer pipe "
It has become.

That is, the method and apparatus for cleaning and repairing a sewer pipe according to the present invention perform the above-mentioned backward injection from a high-pressure water injection head fed to a sewer pipe from which deposits are to be removed. The revolving operation and the rotation operation are applied to the jet head at high speed by the component force of the reaction force of the jet water colliding with the inner wall of the sewer pipe, and the outer periphery of the jet head is rubbed against the inner wall of the sewer pipe to sequentially advance. The method and apparatus for forcibly removing the adhered deposits for cleaning are characterized. In addition, the said attached sediment means the thing including the tree root etc. which invaded into the pipe | tube from the sewer pipe joint etc. other than the thing by the foreign material in drainage. The inclination angle of the rear injection is, for example, about 45 °.

[0010]

According to the method and apparatus for cleaning and restoring a sewer pipe of the present invention having the above-described configuration, if the inclination angle of the rear jet of the high-pressure water jet head is set to an appropriate amount, the rear jet water of the high-pressure water is discharged to the sewer pipe. A repulsive motion that slides along the inner periphery of the sewer pipe while pressing the high-pressure water jet head against the inner periphery of the sewer pipe by a component force based on the inclination angle of the reaction force due to strong collision with the inner wall, The water jet head rotates around its own axis to generate a rotating motion, thereby causing a high-speed revolving / rotating motion to be interlocked. Then, the reaction force acts as a thrust to sequentially move the high-pressure water jet head forward.

Thus, the deposited matter in the sewer pipe is strongly rubbed while being sprayed with high-pressure water by the high-pressure water jet head that revolves and rotates at a high speed, so that efficient forced cleaning can be performed in a short time. And it can be used immediately for sewer pipes and curved pipes having different inner diameters.

[0012]

Embodiments of the present invention will be described below. First, one embodiment of the cleaning / restoring device of the present invention is shown in FIG.
This will be described with reference to FIG. That is, the cleaning / restoring device 1
"Put the washing hose of the washing car parked on the ground through a manhole into a sewer pipe (of a size that no worker can enter), and from the spray nozzle at the tip of the washing hose 3, press the high-pressure water such as" 180 kgf per square centimeter ". Of the known sewer pipe cleaning apparatus for jetting and cleaning is improved as described in detail below.

More specifically, the distal end portion 2 is a flexible hose connected to the distal end of the cleaning hose 3 by a known universal joint 4, and can be freely rotated with respect to the cleaning hose 3.
A high-pressure water jet head 5 (hereinafter, simply referred to as a jet head 5) is provided at the tip. The ejection head 5 has a semicircular leading portion 7 at the tip of a hollow hexagonal column head main portion 6.
, And with the leading portion 7 at the top,
Is sent to the affected part of the drain pipe P in which the water exists.

The ejection head 5 is composed of a head main part 6.
A high-pressure water injection nozzle 8 (hereinafter, simply referred to as “injection nozzle 8”) that opens the nozzle hole 9 toward the rear of the tip portion 2 is provided on one of the outer surfaces of the six surfaces of the nozzle nozzle 9. Has a tilt angle θ of approximately 45 ° with respect to the axis 2A of the tip portion 2, and injects high-pressure water fed from the cleaning hose 3 by approximately 45 ° with respect to the axis of the tip portion 2, and ejects it rearward. It has a structure to make it.

Further, on each of the other outer surfaces 5 of the jet head 5, a sword-shaped rubbing body 10 having rubbing pins 12 provided on a substrate 11 is detachably attached.
The pin tip of the group of the rubbing members 10 constitutes a cylindrical drainage rubbing portion 15 having a diameter of 13 around the ejection head 5, and the ejection nozzle 8 is accommodated in the diameter 13 of the rubbing portion 15. It has a form.

When the high-pressure jet water W is jetted backward from the nozzle hole 9, the jet head 5 is moved by the reaction force of the high-pressure jet water W colliding with the sewer pipe P. The rotation motion of R1 "and the" revolution motion of the illustrated R2 moving in the circumferential direction along the inner circumference of the sewer pipe P "are simultaneously generated and continued, and the reaction force of the high-pressure injection water W causes the inside of the sewer pipe P to move. It is designed to operate forward.

The ejection head 5 of this embodiment has a size of "diameter = about 36 mm, total length = about 70 mm", and is provided with four circumferential rear portions at the connecting neck portion between the leading portion 7 and the head main portion 6. It has an injection nozzle hole 16, and the high-speed injection of high-pressure water from the rear injection nozzle hole 16 supports the forward self-propelled movement of the injection head 5 and the drain cleaning. The front end portion 2 is set to a length of approximately 500 to 1,000 mm.

Sewage pipe cleaning / repairing device 1 of the above embodiment
Is used by the following procedures and methods. That is, (FIG. 2
Reference) The tip 2 is sent from the manhole to the “sewage pipe P having the attached sediment D and having a reduced drainage function”, and then from the high-pressure water pumping device on the ground via the washing hose 3. By injecting high-pressure water and jetting high-pressure water backward from the nozzle holes 9 and 16, the jet head 5 is connected to the drain pipe P.
Make the above-mentioned rotation and orbital motion while moving forward inside,
The rubbing portion 15 of the spinning jet head 5 is rubbed against the inner wall of the sewer pipe P to forcibly remove the attached deposits D,
The jet water W is used to clean the inside of the pipe and restore the drainage function.

The cleaning / restoring apparatus 1 of the above embodiment has the above-described operation, and the spray water W of the nozzle hole 9 of the jet head 5 is set at 45 degrees with respect to the axis of the jet head 5 (the axis of the tip portion 2). °
The jet head 5 continues the high-speed revolving motion and the revolving motion by the component force due to the strong collision reaction force of the jetting water W to the inner periphery of the sewer pipe P, so that the jet head 5 moves forward in the sewer pipe P. Then, the tip of the rubbing pin 12 of the rubbing portion 15 of the ejection head 5 strongly presses against the inner periphery of the sewer pipe P to perform a dynamic sliding action. In this way, the foreign matter in the pipe that has firmly adhered and deposited, and the tree root R that has invaded the pipe are accurately scraped and drained out, and the sewer pipe P
Function can be restored to high quality and high performance. In addition, when the thing of the said Example was sent into the sewer pipe P with an inner diameter of 200 mm, and high-pressure water of 150 kgf per square centimeter was jetted, the revolution number of revolution was approximately 360 times per minute.

The apparatus for cleaning and restoring a sewer pipe according to the present invention is described in the above-mentioned embodiment as a "rotatable joint for connecting the connecting portion 17 between the jet head 5 and the hose in order to further improve the rotation of the jet head 5". May be. For example, the sewage pipe rubbing portion 15 of the ejection head 5 may be in the form of a cylindrical brush body 20 as shown in FIG. 3 or a gear shape having a surface with “jagged grooves 21”. Hole 16 may be omitted.

[0021]

As described above, the method and apparatus for cleaning and restoring a sewer pipe according to the present invention removes and cleans firmly attached sediment and tree roots penetrating the sewer pipe in the sewer pipe to improve the drainage performance. It has the effect of achieving high-performance and high-efficiency recovery, improving technology in this field, and improving sewer pipe maintenance.

[Brief description of the drawings]

1A and 1B show an apparatus for cleaning and restoring a sewer pipe according to an embodiment of the present invention, wherein FIG. 1A is a front view of a state in which a sewer pipe rubbing portion is not attached, FIG. (C) is a front view of the ejection head to which the sewer pipe rubbing part is attached, and (D) is a side view of the ejection head to which the sewer pipe rubbing part is attached.

FIG. 2 is an explanatory diagram of an operation state of the embodiment in FIG. 1;

3A and 3B show another embodiment of the sewage pipe rubbing portion of the sewage pipe cleaning / repair device of the present invention, wherein FIG. 3A is a side view thereof, and FIG.

[Explanation of Signs] 1 Sewer pipe cleaning / repairing device 2 Tip part 3 Cleaning hose 5 Injection head 6 Head main part 8 High pressure water injection nozzle 9 Nozzle hole 10 Sliding body 11 Substrate 12 Sliding pin 15 Sewage pipe sliding section D attached sediment P sewer pipe R tree root W high-pressure jet water

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[Procedure amendment]

[Submission date] April 26, 2000 (200.4.2
6)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0007

[Correction method] Change

[Correction contents]

[0007]

SUMMARY OF THE INVENTION The present invention for solving the above-mentioned technical problems is directed to a method for removing and depositing deposits in a sewer pipe by feeding a high-pressure water supply hose having a high-pressure water jet head at a front end into the sewer pipe. And the high-pressure water injection head
The slightly longer section of the high-pressure water supply hose following
The high-pressure water jet head is set to freely rotate and rotate.
The high-pressure water injection head injects rearward high-pressure water from the pressurized water injection head in a direction inclined to the longitudinal axis of the high-pressure water injection head. a imparts a rotation motion around the revolution motion to the longitudinal direction axis of pivoting along the inner periphery of the lower water pipe, removing the adhered deposits by sequentially advancing the high-pressure water jetting head A distinctive method of cleaning and repairing sewer pipes,

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0008

[Correction method] Change

[Correction contents]

[0008] A high-pressure water injection hose
In a device for cleaning and repairing sewer pipes equipped with
To the high pressure water supply hose slightly away from the water injection head
A universal joint is provided, and the high-pressure water jet head is
The front end of the hose leading to the
And the high pressure water jetting head pivots along the inner periphery of the sewer pipe.
Operatively configured, and the high-pressure water jet head further comprises:
A rear jet nozzle having an inclination angle with respect to the longitudinal axis of the high-pressure water jet head, and a sewage pipe rubbing section having a cylindrical shape centered on the longitudinal axis, and Characterized by a structure that allows the entire inner circumference of the sewer pipe to be rubbed
[0007] A sewage pipe cleaning / repairing device used in the sewage pipe cleaning / repairing method described in 0007] .

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0009

[Correction method] Change

[Correction contents]

That is, the method and apparatus for cleaning / repairing a sewer pipe of the present invention send the sediment to a sewer pipe from which deposits are to be removed.
High pressure water feed hoe with high pressure water injection head at the tip
Some of the tips of the steel
High pressure water jet head with hose rotatable and at the tip
From a configuration that enables self-rotating operation along the inner circumference of the sewer pipe
The high pressure water injection head inserted into the sewer pipe performs the above-described rear injection, and the rearward jetting force ( revolution operation) is applied to the jet head by the component force of the reaction force that the rear jet water collides with the inner wall of the sewer pipe. ) And a rotation operation at a high speed, the outer periphery of the jet head is rubbed against the inner wall of the sewer pipe and sequentially advanced to forcibly remove and deposit the adhered deposits, and the apparatus is characterized. Incidentally, the A deposition deposits, is meant to include other, trees roots, etc. entering from the sewage pipe joint or the like into the tube but by the foreign matter in the waste water. The inclination angle of the rear injection is, for example, about 45 °.

[Procedure amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0013

[Correction method] Change

[Correction contents]

More specifically, the distal end portion 2 is a flexible hose connected to the distal end of the cleaning hose 3 by a known universal joint 4 so that the hose can rotate freely with respect to the cleaning hose 3.
In both cases, the high-pressure water jet head 5 provided at the tip can be turned.
You. Then, with the leading portion 7 of the hemisphere-shaped integrally on the tip of the head main portion 6 of the injection head 5 is hollow 6 rectangular column, sewer P adhesion deposit D by the leading portion 7 at the top is present To be sent to the affected area.

[Procedure amendment 6]

[Document name to be amended] Statement

[Correction target item name] 0016

[Correction method] Change

[Correction contents]

When the high-pressure jet water W is jetted backward from the nozzle hole 9, the jet head 5 is moved by the reaction force of the high-pressure jet water W colliding with the sewer pipe P. Rotational motion of R1 ”and“ revolutionary motion (rotation) of R2 shown in the figure moving circumferentially along the inner circumference of the sewer pipe P
), And continue to generate the high-pressure jet water W
Is operated forward in the sewer pipe P by the reaction force of.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Mamoru Hotta 1-8-38 Noda, Yokkaichi-shi, Mie F-term in Higashi Sangyo Co., Ltd. (Reference) 2D063 EA05 FA02 FA08 3B116 AA13 AB51 BA03 BA14 BA40 BB22 BB59

Claims (3)

[Claims] 1. In removing and depositing deposits in a sewer pipe, a high-pressure water hose having a high-pressure water jet head at a front end is fed into the sewer pipe. The high pressure water is jetted backward in a direction inclined to the longitudinal axis of the water jet head, and the rear jet high pressure impinges on the inner periphery of the sewer pipe to cause the high pressure water jet head to have an inner periphery of the sewer pipe. Washing and rotating the high-pressure water jet head in order to remove the attached deposits by giving a revolving motion rotating along the axis and a rotating motion about the longitudinal axis. Repair method. 2. A front end of a high-pressure water supply hose fed into a sewer pipe is formed in a flexible hose portion having a rotatable high-pressure water injection head at a front end thereof. A rear jet nozzle having an inclination angle with respect to the longitudinal axis of the water ejecting head, and a sewage pipe rubbing part having a cylindrical shape centered on the longitudinal axis, and the sewage pipe rubbing part is used to sew the sewer pipe. The apparatus for cleaning / repairing a sewer pipe used in the method for cleaning / repairing a sewer pipe according to claim 1, characterized in that the circumference is rubbed. 3. The sewage pipe cleaning and cleaning device according to claim 2, wherein the sewage pipe rubbing portion is composed of a set of rubbing bodies in a mountain-like shape provided with rubbing pins.
Restoration device.