KR20170025274A - Method for removing deposit in sewer pipe system with rotating nozzle and brush - Google Patents

Method for removing deposit in sewer pipe system with rotating nozzle and brush Download PDF

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Publication number
KR20170025274A
KR20170025274A KR1020150121508A KR20150121508A KR20170025274A KR 20170025274 A KR20170025274 A KR 20170025274A KR 1020150121508 A KR1020150121508 A KR 1020150121508A KR 20150121508 A KR20150121508 A KR 20150121508A KR 20170025274 A KR20170025274 A KR 20170025274A
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South Korea
Prior art keywords
washing water
brush
sewer pipe
downstream
nozzle
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KR1020150121508A
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Korean (ko)
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KR101814733B1 (en
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이병록
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(주)국제피스코
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    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F9/00—Arrangements or fixed installations methods or devices for cleaning or clearing sewer pipes, e.g. by flushing
    • E03F9/002—Cleaning sewer pipes by mechanical means
    • B08B1/002—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04—Cleaning involving contact with liquid
    • B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Cleaning In General (AREA)
  • Nozzles (AREA)

Abstract

The rotation of the rotating spray nozzle and the nozzle rotate by the rotational force generated by the spray pressure of the washing water sprayed from the rotary spray nozzle, so that the washing water is sprayed. Therefore, The washing water can be sprayed over the entire inner circumferential surface of the sewer pipe while the number of the washing water spraying nozzles is set to about 2 or about 4. By the brush rotating together with the rotating body of the rotary spray nozzle by the rotational force generated by the spray pressure of the washing water, It is possible to effectively remove sediments and foreign substances in the sewer pipe and to prevent the foreign matter from being removed from the sewage pipe due to the fact that the center line of the rotary injection nozzle and the brush coincides with the center line of the sewer pipe by the downstream- And therefore, Since the wash water is uniformly sprayed over the entire inner circumferential surface of the sewer pipe and the bristles of the brush are evenly brought into contact with the inner circumferential surface of the sewer pipe, it is possible to effectively remove sediments and foreign matter, And the outer ring is detachably coupled to the outer ring by a set screw. The rotating body of the rotating body and the downstream rotating body of the brush are detachably coupled to each other by a set screw. And the outer ring of the bearing is detachably coupled to the fixed disk fixed to the upstream side movable support by the set screw. Therefore, the downstream side movable support, the upstream side movable support, the rotary injection nozzle, and the brush can be easily It is possible to disassemble and assemble it, If ryucheuk mobile support, rotating spray nozzle, a least at one part of the brush so that only a damaged part is available to replace it.

Description

[0001] The present invention relates to a method for removing sediments from sewage pipes,

More particularly, the present invention relates to a method for eliminating sediments in a sewer pipe, and more particularly, to a method for removing sewage from a sewer pipe by using a spraying nozzle The washing water is sprayed to the inner circumferential surface of the sewer pipe by rotating the nozzle by the rotational force to remove deposits deposited on the inner circumferential surface of the sewer pipe and the foreign matter adhering to the inner circumferential surface of the sewer pipe is removed by the brush rotating by the rotational force generated by the rotating spray nozzle It is possible to effectively remove sediments and foreign substances from sewage pipes, and to install detachable rotary spray nozzles and brushes on movable support rods in sewer pipes, so that only damaged or worn parts can be replaced. And to reduce the maintenance cost of the equipment. The present invention relates to a method for eliminating sediments from a sewer pipe.

Generally, a sewer pipe is buried in an underground and transports sewage to a treatment facility such as a sewage disposal plant. As time passes, various foreign substances and pollutants contained in the sewage are deposited on the inner circumference of the sewer pipe.

When the sediments are deposited in the sewer pipe, the performance of transporting the sewage is lowered, the submergence of the city due to the backwash of the sewage is caused, and the pollutants contained in the sediments and the stench caused by the corruption are generated.

Therefore, conventionally, sediments deposited in sewer pipes are periodically removed and collected.

As a prior art related to a conventional method for removing a sediment from a sewer, Korean Patent Registration No. 10-112570 (registered on November 21, 1996) entitled " Method of Dredging an Exhausted Tube Using a Honey Jet Pump and Pulley (hereinafter referred to as Prior Art 1) ) Discloses a technique in which a blade is installed on a bogie that is towed by a rope and moves on the bottom of a sewer pipe to allow the blade to scrape sediments deposited on the bottom of the sewer pipe. However, a pulley is installed on the ground and a sewer pipe, And the rope guided to the winch is connected to the both ends of the car to drive the car. Therefore, the preparation process is very complicated and the sediments sticking to the wall and the ceiling of the sewer pipe can not be removed. Which can not prevent odors from being deposited on walls and ceilings. There point.

As a prior art, a sewage pipe dredging method using a car-mounted bucket dredging machine (hereinafter referred to as " Prior Art 2 ") of Korean Registered Patent No. 10-0987633 Was stopped at one of the sewer manholes on both sides of the dredge section of the dredge section and stopped at one of the sewer manholes. The manhole cover was opened to the opposite sewer manhole, and the vehicle was pushed into the sewer pipe in the direction in which the vehicle was stopped. A sewer manhole in one of the two sewer manholes is opened and a work is performed so that a dredging effect can be obtained while using a small space on a narrow road, and a dredged material can be loaded on a dredged vehicle at the time of dredging. To move the bucket over the bottom of the sewer to deposit on the bottom of the sewer It is impossible to remove the sediments stuck to the wall of the sewer pipe and the ceiling so that the effect of removing sediments from the sewer pipe is remarkably deteriorated and there is a problem that the stench caused by the sediments stuck to the wall and the ceiling can not be prevented .

Also, as a conventional prior art, Korean Patent No. 10-1170515 (registered on July 26, 2012) entitled " Dredged dredging apparatus and method of sewer pipe "(hereinafter referred to as " Prior Art 3 "), And the movement guide portion, it is possible to maximize the work efficiency because the center and the corner portion of the sewer pipe can be collectively discharged while moving to the front, rear, left and right sides. When the sewage or sewage water flow rate in the sewer pipe is fast, A drainage prevention unit is installed at one side to reduce the flow rate of sewage and sewage so that the drainage of the dredged soil is minimized to improve the workability. However, since the accumulation bucket is moved from the bottom of the sewer pipe by the rope, This also makes it impossible to remove the sediment from the walls and ceiling of the sewer pipe, And it will be, will be, there is a problem you can not avoid the odor caused by deposits adhering to the walls and ceiling.

Also, as a conventional prior art, Korean Patent No. 10-1346585 (dated December 24, 2013) entitled " Dredging and cleaning device for a sewer pipe having a photographing function " A main body for moving the sewer pipe; A water spray nozzle provided at the rear of the main body and spraying water supplied from the water hose at a high pressure; And a camera built in the front of the main body and photographing the cleaning state of the sewer pipe. The cleaning state of the entire section where dredging and cleaning work of the sewer pipe is performed is also confirmed with a relatively simple and economical construction It is not only possible to shoot, but also it is possible to thoroughly manage and supervise sewer pipes, prevent waste of budget, and implement economical and effective budget execution. However, water is sprayed to the main body connected to the water hose And a camera for shooting toward the front. The washing of the sewer pipe is performed by spraying water, and the inside of the sewer pipe can be photographed and supervised, and the washing of the sewer pipe is performed by water spraying There is a problem that the removal efficiency of the sediment is significantly lowered All.

In recent years, a method of removing sediments from a sewer pipe by spraying high-pressure washing water to a sewer pipe using a rotary spraying nozzle for spraying washing water while rotating by a rotating force generated by the jetting pressure of the washing water or a rotating force of a turbine rotating by the washing water is widely used have.

When the washing water is supplied through the washing water supply hose connected to the rear end of the rotating spray nozzle and wound around the winding drum provided on the ground working vehicle, the washing water is directed to the inner circumferential surface of the rear and sewage pipe through the spray hole formed in the rotary spray nozzle When the washing water supply hose is released from the winding drum freely, the washing water is sprayed backward while the rotary spray nozzle advances by thrust according to the washing water spraying pressure. When the washing water supply hose is wound on the winding drum, As the nozzle is dragged backward, the washing water is sprayed rearward so that the foreign matter removed from the sewer pipe is transferred backward along with the washing water.

However, the conventional rotary spray nozzle is simply coupled to the tip of the washing water supply hose, and the washing water is sprayed from the bottom of the sewer pipe to the bottom of the sewer pipe, So that uniform wash water injection is not performed to the entire inner circumferential surface of the sewage pipe.

In addition, the sewer pipe has a lot of sediments accumulated in the bottom part, and sediments do not accumulate in the other parts. However, since the bottom part always comes into contact with water, sediments are mixed with water and can be easily removed by the injection of washing water. Foreign substances are stuck to each other because they are not always in contact with water, and the foreign substances adhered to the stool are not easily removed by the injection of the washing water, so that the washing is not evenly performed over the entire inner circumferential surface of the sewer pipe.

Accordingly, the washing water sprayed from the rotary spray nozzle is sprayed uniformly over the entire inner circumferential surface of the sewer pipe. In addition, the brush rotating together with the rotary spray nozzle sweeps out sediments deposited on the sewer pipe and the inner peripheral surface of the sewage pipe, It is required to develop a technique that can more efficiently remove the foreign substance.

It is also required to develop a technology that can reduce the maintenance cost of equipment by replacing damaged parts by disassembling, assembling, and replacing the rotary spray nozzle and brush.

Korean Registered Patent No. 10-0112570 (Registered on November 21, 1996) "Dredging method for a pipe joint using a jet pump and a pulley" Korean Registered Patent No. 10-0987633 (Registered on October 10, 2010) "Drains of the sewer system using a car-mounted bucket dredger" Korean Registered Patent No. 10-1170515 (registered on July 26, 2012) "Dredged dredging device and method of sewer pipe" Korean Registered Patent No. 10-1346585 (Registered on December 24, 2013) "Dredging and cleaning apparatus for a sewer pipe having a photographing function"

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a washing machine and a washing machine capable of rotating the nozzle while rotating the nozzle by the rotation force generated by the jetting pressure of the washing water injected by the rotary jetting nozzle in a state in which the centerline of the rotary jetting nozzle and the brush are aligned with the centerline of the sewer pipe, So that sediments deposited on the inner circumferential surface of the sewer pipe are removed and foreign substances adhered to the inner circumferential surface of the sewer pipe are removed by a brush rotated by the rotational force generated by the rotary injection nozzle, thereby effectively removing sediments and foreign substances from the sewer pipe, The rotating spray nozzle and the brush can be removably attached to the moveable support in the sewer pipe, so that only damaged or worn parts can be replaced, so that optimum performance can be always achieved and the maintenance cost of the equipment can be reduced. One R & B pipes intended to provide a method for substantially removing deposits.

According to an aspect of the present invention, there is provided a center frame including a center frame, a plurality of support angles radially coupled to a downstream side surface of the center frame and configured to be adjustable in length, A downstream-side movement support including a wheel supported in a rolling contact with an inner circumferential surface of the sewer pipe; A plurality of support angles spaced upstream from the downstream movement support rods and configured to be adjustable in length and coupled to the center frame in a radial direction and a rotatably supported on an outer circumferential side end of the support angle, An upstream-side moving support including a rolling contact wheel; Wherein the rotation injection nozzle comprises: a fixed body fixedly coupled to a center of the downstream side movement support; a rotating body rotatably coupled to the fixed body; and a rotating body provided on an outer circumferential portion of the rotating body to spray wash water in a radial direction, A rotary injection nozzle including a plurality of nozzles for generating rotational force of the rotating body; A downstream rotating disk coupled to a brush engagement shaft of the rotating body of the rotary spray nozzle; and an upstream rotating disk that is rotatably supported on the upstream side fixed disk, A cylindrical body having a downstream side rotating disk and an upstream side rotating disk coupled to a downstream side end portion and an upstream side end portion and having a plurality of solo unit coupling grooves each having a T- A plurality of solder bases coupled to the solder unit coupling grooves and having a T-shaped cross section corresponding to a cross-sectional shape of the solder unit coupling grooves, and a plurality of solder units having a plurality of solder rods arranged in the outer circumferential portion of the solder base, brush; An insertion hole formed at the center of the center frame, an insertion tube portion inserted through the insertion hole and reaching a downstream side end portion of the wash water inflow passage formed at the upstream end of the rotation body, A cleaning water supply pipe having a flange portion which is in close contact with a downstream end face of the frame and a hose coupling portion which extends downstream in the flange portion and into which the washing water supply hose is engaged, a cylindrical portion having an inner diameter corresponding to the outer diameter of the center frame, And an inner flange portion integrally formed on the downstream side end portion of the flange portion and in close contact with the downstream end surface of the flange portion and having a female screw portion formed on an inner circumferential surface of the cylindrical portion and screwed to a male screw portion formed on an outer circumferential surface of the center frame The washing water supply means including; A preparation step of preparing a sediment removal equipment comprising the sediment removal equipment; The sediment removal equipment is put into the washing section of the sewer pipe so that the wheels of the downstream movement support roll and the wheels of the upstream movement support roll come into rolling contact with the inner circumferential surface of the sewer pipe so that the center line of the rotary injection nozzle and the brush coincides with the center line of the sewer pipe. Equipment input process; The washing water is supplied through the washing water supply means and the washing water is supplied to the downstream side movement support member and the upstream side movement support member by the injection pressure of the washing water sprayed from the nozzles of the rotary injection nozzle in a state in which the washing water supply hose of the washing water supply means is freely released, The washing water, the rotary spray nozzle, the brush, and the washing water supply means are moved in the upstream direction, the washing water sprayed from the nozzle removes deposits deposited on the inner circumferential surface of the sewer pipe and moves to the downstream side, An upstream moving sediment removal process in which Solomo sweeps away foreign substances adhered to the inner circumferential surface of the sewer pipe; And the washing water supply hose of the washing water supplying means is pulled in the downstream direction so that the washing water is supplied through the washing water supplying means while the moving support, the upstream side moving support, the rotary spray nozzle, the brush and the washing water supplying means are moved in the downstream direction, The washing water sprayed from the nozzle on the downstream side by the spraying pressure of the washing water sprayed from the nozzle of the spray nozzle removes sediments deposited on the inner circumferential surface of the sewer pipe and moves to the downstream side and the brush of the brush rotating together with the rotating spray nozzle Wherein the step of removing the sediments in the upstream direction and the step of removing the sediment in the downstream direction are repeatedly performed. The method according to claim 1, Provide an RMB method for The.

According to the present invention, since the rotating body of the rotary injection nozzle and the nozzle rotate, the washing water is sprayed by the rotational force generated by the spray pressure of the washing water sprayed from the rotary spray nozzle, The washing water can be sprayed to the entire inner circumferential surface of the sewer pipe while the brush is rotated together with the rotating body of the rotary jet nozzle by the rotational force generated by the jetting pressure of the washing water, It is possible to sweep off the foreign substances adhered to the sewage, thereby effectively removing the sediments and foreign substances in the sewer pipe.

Also, since the center line of the rotary injection nozzle and the brush are maintained in a state in which the center line of the rotary spray nozzle coincides with the center line of the sewer pipe by the downstream side movement support member and the upstream side movement support member, the washing water sprayed from the rotary injection nozzle is uniformly sprayed on the entire inner peripheral surface of the sewage pipe, So as to uniformly contact the inner circumferential surface of the sewer pipe, so that sediments and foreign matter can be effectively removed.

According to the present invention, the inner ring of the bearing is press-fitted into a fixed body fixed to a downstream side movable support, and the outer ring is detachably coupled to the outer ring by a set screw. The rotating disk on the downstream side of the brush and the rotating disk on the downstream side of the brush are detachably connected by a set screw. The outer ring of the bearing is fixed to the fixed disk fixed to the upstream side moving support by pressing the inner ring of the bearing onto the rotating disk on the upstream side of the brush. Since the downstream side movable support, the upstream side movable support, the rotary injection nozzle and the brush can be easily disassembled and assembled, the downstream side movable support, the downstream side movable support, the rotary injection nozzle, and the brush If a part is damaged, only the part can be replaced and used.

In the method of the present invention for removing sediments from a sewer pipe, the washing water supply pipe is detachably coupled to the fixing member of the rotary movement spray nozzle and the rotary spray nozzle by the tightening cap, so that the washing water supply pipe and the washing water supply hose connected thereto can be easily detached .

In addition, the nozzle of the rotary injection nozzle is coupled to the nozzle joint formed in the rotating body so as to be detachable and attachable to the screw hole, so that the nozzle can be quickly and easily replaced.

In addition, the brush has a plurality of solo unit coupling grooves having a T-shaped cross section formed at an outer peripheral portion of the cylindrical body at regular intervals along the circumference, and the solo unit has a T- Since the plurality of solo bases and the plurality of solos arranged in the outer periphery of the solo base extend radially, only the damaged solo unit can be used.

1 to 10 show a preferred embodiment of the method for removing sediments from sewer pipes according to the present invention,
1 is a perspective view of a sediment removal equipment used to implement the present invention,
2 is an exploded perspective view of a sediment removal equipment used to implement the present invention,
3 is a perspective view showing a state in which each component is disassembled,
FIG. 4 is a front view of the apparatus for removing sediment introduced into a sewer pipe from the downstream side,
5 is a rear view of the equipment for removing sediments introduced into a sewer pipe from the upstream side,
6 is a sectional view taken along line A-A in Fig. 4,
Fig. 7 is a cross-sectional view taken along the line B-B in Fig. 4,
FIG. 8 to FIG. 10 are process charts showing an RMB method for removing sediments from sewer pipes according to the present invention,
8 is a sectional view showing a process of putting sediment removal equipment into a sewer pipe,
9 is a cross-sectional view illustrating a process of removing sediments to the downstream side while the sediment removal equipment moves to the upstream side in accordance with the injection of the washing water.
10 is a cross-sectional view showing a process of winding up the washing water supply hose to the winding drum to remove sediment to the downstream side while the sediment removing equipment moves to the downstream side.

Hereinafter, a method for removing sediments from a sewer pipe according to the present invention will be described in detail with reference to the preferred embodiments illustrated in the accompanying drawings.

[Definition of Terms]

The Rotating Nozzle and Brush method for removing sediments from a sewer pipe according to the present invention is a method for removing sediments and foreign substances from a sewer pipe using a rotating spray nozzle and a rotating brush.

The method of the present invention for removing sediments from a sewer pipe can be implemented by a sediment removal equipment (DME) that removes foreign matter adhered to the inner circumferential surface of a sewer pipe while spraying washing water on the inner circumferential surface of the sewer pipe while moving inside the sewer pipe. have.

The sediment removal equipment (DME) includes a downstream-side movement support 100 and an upstream-side movement support 200 disposed at regular intervals from each other; A rotary spray nozzle 300 rotatably installed at the center of the downstream side movement support 100 for spraying washing water in a radial direction and generating a rotational force by itself; A brush 400 coupled to the rotary injection nozzle 300 to rotate together with the rotary injection nozzle 300 and the other end to be rotatably supported on the upstream movement support 200; And washing water supply means (500) for supplying washing water to the rotary spray nozzle (300); .

The downstream movement support 100 includes a center frame 110, a plurality of support angles 120 radially coupled to a downstream side surface of the center frame 110, And a wheel 130 rotatably supported and in rolling contact with the inner circumferential surface of the sewer pipe 10.

The center frame 110 is formed of a circular plate.

The support angle 120 is adjustable in length according to the inner diameter of the sewer pipe 10 to be constructed.

That is, the support angle 120 includes a pair of left and right fixing support bars 121 whose inner circumferential ends are fixed to the downstream side surface of the center frame 110, And a movable support bar (122) slidably coupled to the outer circumferential side and rotatably supporting the wheel (130) at an outer circumferential side end thereof. The pair of fixed support bars (121) are provided with a pair of bolt through holes A bolt guide slot 125 is formed in the movable support bar 122 so that a bolt 126 passing through the bolt through hole 124 is guided along the bolt guide slot 125, The fixing support bar 121 and the movable support bar 122 can be fixed in a length-adjusted state by fastening the nut 127 to the bolt 126.

The fixing support bar 121 may be coupled to the upstream side surface of the center frame 110 by welding or bolt / nut fastening. In the drawing, the fixing support bar 121 is joined by welding.

A wheel support part 123 is provided at an outer peripheral side end of the movable support bar 122 and the wheel 130 is rotatably supported by the wheel support part 123 by a wheel shaft 131.

The upstream movement support 200 includes a center frame 210, a plurality of support angles 220 radially coupled to the center frame 210 and four support angles 220, And a wheel (230) rotatably supported on the side end portion and in rolling contact with the inner circumferential surface of the sewer pipe (10).

The center frame 210 is formed of a circular plate.

The support angle 220 is adjustable in length according to the inner diameter of the sewer pipe 10 to be constructed.

That is, the support angle 220 includes a pair of left and right fixing support bars 221 whose inner circumferential ends are fixed to the upstream side surface of the center frame 210, And a movable support bar 222 rotatably supported on the outer circumferential side end of the wheel 230. The pair of fixed support bars 221 is provided with a pair of bolt through holes A bolt guide slot 225 is formed in the movable support bar 222 so that a bolt 226 penetrating through the bolt through hole 224 is guided along the bolt guide slot 225, The fixing support bar 221 and the movable support bar 222 can be fixed in a length-adjusted state by fastening the nut 227 to the fixing bar 226.

The stationary support bar 221 may be coupled to the downstream side surface of the center frame 210 by welding or bolt / nut fastening. In the drawing, the stationary support bar 221 is joined by welding.

A wheel support portion 223 is provided on an outer peripheral side end of the movable support bar 222 and the wheel 230 is rotatably supported by the wheel support bar 223 by a wheel shaft 231.

The support angles 120 and 220 are angled in the directions of 45 degrees, 135 degrees, 225 degrees and 315 degrees with respect to the center line of the sewer pipe 10, It is preferable that the center line of the sediment removal equipment DME coincides with the center line of the sewer pipe 10 when it contacts the inner circumferential surface.

The rotary injection nozzle 300 includes a fixed body 310 fixedly coupled to a center portion of the downstream side support 100, a rotating body 320 rotatably coupled to the fixed body 310, (Four in the figure) nozzles 330 provided in the outer circumferential portion of the whole body 320 for spraying washing water in a radial direction and generating a rotational force of the rotator 320.

The fixing body 310 can be coupled to the upstream side surface of the fixing support bar 121 of the supporting angle 120 by welding or bolts / nuts. In the illustrated example, the fixing body 310 is joined by welding.

The upstream end of the fixing body 310 and the downstream end of the rotating body 320 are rotatably coupled by a bearing 340.

An inner ring coupling ring portion 311 is formed at an upstream end surface of the fixing body 310 and is press-fitted into the inner ring 341 of the bearing 340. The bearing 340 is formed on the downstream end surface of the rotary body 320, An outer ring fitting portion 321 into which the outer ring 342 of the outer ring 341 is fitted is formed.

The set screw 343 is screwed into the outer ring fitting portion 321 of the outer ring fitting portion 321 and the outer ring 342 so that the tip of the set screw 343 is fixed by fixing the outer peripheral surface of the outer ring 342 Can be combined.

A washing water inflow passage 323 having a downstream end opened and an upstream end closed is formed in the central portion of the rotating body 320 and an inverted protrusion portion 323 for inverting the washing water is provided at the upstream end of the washing water inflow passage 323 And an inverted recess portion 325 formed around the inverted protrusion portion 324 are formed on the outer circumferential surface of the rotating body 320. A nozzle connection or a through hole 326 formed between the inverted recess portion 325 and the outer circumferential surface of the rotating body 320 is formed do.

At the upstream end of the rotating body 320, a coupling shaft portion 327 for coupling a brush 400 described later is protruded.

A nozzle hole 331 is formed at the center of the nozzle 330 and a male screw portion 332 is screwed to the nozzle hole of the rotating body 320 or screw hole 326, And is detachably coupled to the rotating body 320.

The nozzle 330 is rotated in a direction perpendicular to the rotation axis of the rotating body 320 so that the washing water is injected obliquely in the downstream direction with respect to the sewer pipe 10 and the rotating body 320 and the nozzle 330 are rotated by the jetting pressure of the washing water The injection center line IL with respect to the center line CL of the rotating body 320 is formed so as to form an angle of 15 to 30 degrees in the clockwise or counterclockwise direction (See Fig. 6) so as to form an angle of 30 to 60 degrees in the downstream direction.

In the illustrated example, four nozzles 330 are provided, but only two nozzles 330 may be provided, or four or more nozzles 330 may be provided.

The brush 400 includes a fixed disk 410 fixedly coupled to a center portion of the upstream movement support 200 and a fixed disk 410 coupled to a brush coupling shaft portion 327 of the rotary body 320 of the rotary injection nozzle 300 A downstream rotating disk 420 and an upstream rotating disk 430 rotatably supported by the upstream fixing disk 410. The downstream rotating disk 420 and the upstream rotating disk 430 are rotatably supported by the downstream rotating disk 420, A cylindrical body 440 having a side end portion and an upstream end portion coupled to each other and having a plurality of tongue-shaped Soulo unit coupling grooves 443 formed at regular intervals along the circumference at an outer peripheral portion thereof, A plurality of solder bases 451 having a T-shaped cross section corresponding to the cross-sectional shape of the solder unit coupling grooves 443 and a plurality of solder fingers 452 arranged at the outer circumferential portion of the solder base 451 and extending radially, And a solo unit 450 having a plurality of arms.

The fixed disk 410 may be welded or bolted / nut-coupled to the downstream side surface of the fixed support bar 221 of the support angle 220 of the upstream side support 200, There is a combined example.

The downstream end of the fixed disk 410 and the downstream end of the upstream rotating disk 430 are rotatably coupled by a bearing 460.

The downstream rotating disk 420 is formed with a rotary spray nozzle coupling ring 421 on the downstream end face to insert the brush engagement shaft portion 327 into the rotary spray nozzle coupling ring 421 and the rotary spray nozzle coupling ring 421 The set screw 423 is fastened to the screw hole 422 formed in the outer peripheral portion of the rotary spray nozzle 300 so that the tip end of the set screw portion 423 tightens the outer peripheral surface of the brush engagement shaft portion 327, And can be coupled to the rotating body 320.

An inner ring coupling shaft portion 431 is formed at an upstream end surface of the upstream rotary disk 430 so as to be pushed into an inner ring 461 of the bearing 460. A bearing The outer ring fitting portion 411 in which the outer ring 462 of the outer ring fitting portion 460 is fitted is formed.

The set screw 463 is screwed into the screw hole 412 formed in the outer ring fitting portion 411 of the outer ring fitting portion 411 and the outer ring 462 so that the tip of the set screw 463 is inserted into the outer peripheral surface So that they can be fixedly coupled.

The engagement of both ends of the cylindrical body 440 with respect to the downstream rotary disk 420 and the upstream rotary disk 430 is achieved by connecting the upstream end of the downstream rotary disk 420 and the downstream end of the upstream rotary disk 430, The male threaded portions 425 and 433 formed on the outer circumferential surface of the engagement ring portions 424 and 432 projecting from the side end portions and the female threaded portions 441 and 442 formed on both ends of the inner circumferential surface of the cylindrical body 440 are screwed Lt; / RTI >

Fixing screws 426 and 434 passing through the downstream rotating disk 420 and the upstream rotating disk 430 are fastened to the screw holes 427 and 435 formed at both ends of the cylindrical body 440, It is possible to firmly couple the downstream-side rotary disk 420 and the upstream-side rotary disk 430 with respect to the body 440.

The solo unit 450 is integrally formed by arranging the inner circumferential side end of the solder 452 on the outer circumferential portion of the solder base 451 in the process of molding the solder base 451 and the solder 452 into synthetic resin .

The solo unit coupling groove 443 is formed such that one end of the downstream end and the upstream end are opened and the other end is closed so that the solo base 451 of the solo unit 450 is inserted from one end, So that the syringe unit 450 can be coupled to the cylindrical body 440 by inserting the syringe unit 450 until it coincides with the end of the syringe unit 450. [

In the illustrated example, the downstream end of the solomon unit engaging groove 443 is opened and the upstream end is closed, but the reverse configuration is also possible.

The washing water supply means 500 includes an insertion hole 510 formed at the center of the center frame 110 and an upper end inserted through the insertion hole 510, A flange portion 522 formed on an outer circumferential surface of the insertion tube portion 521 to be in close contact with a downstream end surface of the center frame 110, A washing water supply pipe 520 having a hose coupling part 523 extending from the washing tub 522 to the washing water supplying hose 540 and a cylindrical part 531 having an inner diameter corresponding to the outer diameter of the center frame 110, An inner flange portion 532 which is integrally formed on the downstream side end portion of the cylindrical portion 531 and is in close contact with the downstream end surface of the flange portion 522, and an inner flange portion 532 formed on the inner peripheral surface of the cylindrical portion 531, And is screwed to a male screw portion 534 formed on the outer peripheral surface of the center frame 110 Having a threaded portion 533 is configured to include a fastening cap (530).

Leakage may occur between the fixing body 310 and the rotating body 320 in the process of supplying the washing water through the washing water supply pipe 520 of the washing water supplying means 500, (Not shown) are formed on the joining surfaces of the first and second ring-shaped protrusions 320 and 320 to prevent water leakage.

The washing water supply hose 540 is installed to be kept in a free state or pulled in a downstream direction.

To this end, the washing water supply hose 540 of the washing water supplying means 500 may be prepared in a state of being wound around a winding drum (not shown) provided in the ground working vehicle.

The winding drum can be switched from the free state in which the washing water supply hose 540 can freely be released to the winding state in which the washing water supply hose 540 is wound.

Since the winding drum is widely used in a method for removing sediments using a conventional rotary spray nozzle, a detailed description thereof will be omitted.

Hereinafter, each step of the method for removing sediments from sewer pipes according to the present invention will be described.

Description of the camera installation process and the like for monitoring in the sewer pipe 10 will be omitted.

[Preparation process]

A sediment removal equipment (DME) combining the downstream side support 100, the upstream side support 200, the rotary injection nozzle 300, the brush 400 and the wash water supply means 500 is prepared (see FIG. 1) .

[Sediment removal equipment input process]

In the sediment removal equipment injection process, the sediment removal equipment (DME) is introduced into the washing section in the sewer pipe (10) through a downstream operation port (not shown), and the wheel 130 of the downstream movement support 100 and the upstream movement support The wheel 230 of the brush 200 is brought into rolling contact with the inner peripheral surface of the sewer pipe 10 such that the center line of the rotary injection nozzle 300 and the brush 400 coincides with the center line of the sewer pipe 10.

Since the support angle 120 of the downstream side support 100 and the support angle 220 of the upstream side support 200 are adjustable in length, the support angles 120 and 220 The centerline of the rotary injection nozzle 300 and the brush 400 can be aligned with the centerline of the sewer pipe 10.

At this time, the downstream side support 100 is directed to the downstream direction and the upstream side support 200 is directed to the upstream direction.

The washing water supply hose 540 of the washing water supplying means 500 is connected to a washing water supply source (not shown) provided on the ground working vehicle.

[Removal Process of Moving Sediment in Upstream Direction]

In the upstream moving sediment removing process, the washing water is supplied through the washing water supplying means 500 in a state in which the washing water supply hose 540 of the washing water supplying means 500 can freely be released, The rotary movement support 200, the rotary injection nozzle 300, the brush 400 and the washing water supply means 500 are moved in the upstream direction by the injection pressure of the washing water injected from the rotary shaft 330 The washing water injected from the nozzle 330 while moving moves to the downstream side by removing sediments accumulated on the inner circumferential surface of the sewer pipe 10 and the brush 400 rotating together with the rotating body 320 of the rotary injection nozzle 300, So that the foreign material adhered to the inner circumferential surface of the sewer pipe 10 is swept away.

At this time, the winding drum (not shown) provided in the ground working vehicle is switched to the free loosened state so that the washing water supply hose 540 can be freely loosened so that the above-described movement in the upstream direction is smoothly performed.

The washing water supplied through the washing water supply hose 540 flows into the washing water inflow path 323 formed in the rotating body 320 of the rotary spray nozzle 300 through the washing water supply pipe 520 The direction of the washing water is reversed toward the nozzle 330 by the inverted protrusion 324 and the inverted groove 325 formed at the upstream side end of the washing water inflow passage 323, And is sprayed toward the inner peripheral surface (see Fig. 9).

At this time, in the nozzle 330, the washing water is injected obliquely in the downstream direction with respect to the sewer pipe 10, and in order to rotate the rotating body 320 and the nozzle 330 by the jetting pressure of the washing water, Since the injection center line IL with respect to the normal line NL is configured to form an angle of 15 to 30 degrees clockwise or counterclockwise, the rotating body 320 rotates due to the reaction against the wash water injection pressure.

The nozzle 330 is configured such that the injection center line IL of the center line CL of the rotating body 320 forms an angle of 30 to 60 degrees in the downstream direction so that the washing water is sprayed toward the downstream direction.

At this time, although four nozzles 330 are provided, since the rotating body 320 provided with the nozzles 330 is rotated, the washing water sprayed from the nozzles 330 is uniformly sprayed on the entire inner circumferential surface of the sewer pipe 10 .

In this process, the sediment removal equipment (DME) moves toward the upstream direction, but since the wash water is sprayed in the downstream direction, the sediments removed by the wash water and the wash water are moved in the downstream direction and collected in the downstream side work area.

The brush 400 coupled to the rotating body 320 of the rotary injection nozzle 300 so as to be integrally rotatable and rotatably supported on the upstream side movement support 200 rotates, The deposits deposited on the inner circumferential surface of the inner circumferential surface and the outer circumferential surface of the inner circumferential surface are swept away.

The sediment removal equipment DME is constructed such that the center line of the rotary injection nozzle 300 and the brush 400 coincides with the center line of the sewer pipe 10 by the downstream side support 100 and the upstream side support 200, The washing water sprayed from the rotary spray nozzle 300 is uniformly sprayed over the entire inner circumferential surface of the sewer pipe 10 and the brush sliver 452 of the brush 400 uniformly contacts the inner circumferential surface of the sewer pipe 10, And the foreign matter can be effectively removed.

The sediments and foreign matter removed by the brushes 400 are swept downstream by the sprayed washing water and collected in the downstream side work together with the sediments removed by the washing water.

[Downstream Moving Sediment Removal Process]

The downstream moving sediment removal process draws the wash water supply hose 540 of the wash water supply means 500 in the downstream direction to remove the movement support 100, the upstream movement support 200, the rotary injection nozzle 300, the brush 400, The washing water is supplied through the washing water supplying means 500 to the washing water supplying means 500 while the washing water supplying means 500 is moved in the downstream direction and the washing water is sprayed from the nozzle 330 of the rotary spraying nozzle 300, The washing water sprayed from the spray nozzle 330 removes sediments deposited on the inner circumferential surface of the sewer pipe 10 and moves to the downstream side and the sludge of the brush 400 rotating together with the rotating body 320 of the rotating spray nozzle 300 452 sweep away foreign substances adhering to the inner circumferential surface of the sewer pipe 10.

The operation of pulling the wash water supply hose 540 of the wash water supply means 500 in the downstream direction can be performed by winding the wash water supply hose 540 on the winding drum (not shown) provided on the ground working vehicle or pulling the worker .

The process of injecting the washing water supplied through the washing water supply hose 540 and the rotation of the rotary body 320 and the nozzle 330 of the rotary injection nozzle 300 and the rotation of the brush 400 are performed in the above- The same processes as those in the moving sediment removal process are not described.

In the downstream moving sediment removal process, the downstream side movement support 100, the upstream side movement support 200, the rotary injection nozzle 300, the brush 400, and the wash water supply means 500 are moved to the downstream side, So that the sediments and foreign matter remaining in the sewer pipe 10 in the upstream moving sediment removal process can be swept into the downstream side work space.

The upstream moving sediment removal process and the downstream moving sediment removal process may be repeatedly performed to remove sediments and foreign substances in the sewer pipe 10.

On the other hand, sediments and wash water collected in the downstream side work are transferred to the ground by a conventional suction pump and a suction hose (not shown) and processed according to a conventional sediment treatment procedure.

Therefore, according to the present invention, since the rotating body of the rotary injection nozzle and the nozzle are rotated by the rotational force generated by the injection pressure of the washing water sprayed from the rotary spray nozzle, the washing water is sprayed, The washing water can be sprayed over the entire inner circumferential surface of the sewer pipe while the number of the washing water spraying nozzles is set to about 2 or about 4. By the brush rotating together with the rotating body of the rotary spray nozzle by the rotational force generated by the spray pressure of the washing water, It is possible to effectively remove sediments and foreign substances in the sewer pipe.

Since the center line of the rotary injection nozzle 300 and the brush 400 is maintained in a state where the center line of the rotary injection nozzle 300 and the brush 400 coincides with the center line of the sewer pipe 10 by the downstream side movement support 100 and the upstream side movement support 200, Is uniformly sprayed over the entire inner circumferential surface of the sewer pipe 10 and the brush 454 of the brush 400 is evenly brought into contact with the inner circumferential surface of the sewer pipe 10 to effectively remove deposits and foreign matter. .

According to the present invention, the inner ring 341 of the bearing 340 is press-fitted and fixed to the fixed body 310 fixed to the downstream side support 100, and the rotating body 320 The rotary disk 320 and the rotary disk 420 on the downstream side of the brush 400 are detachably attached by the set screw 463 The inner ring 461 of the bearing 460 is press-fitted and fixed to the upstream rotating disk 430 of the brush 400 and the outer ring 462 of the bearing 460 is fixed to the upstream side moving support 200 The rotary motion support 300 and the brush 400 can be easily disassembled since the downstream movable support 100 and the upstream movable support 200 can be easily disassembled by the set screw 463, So that the downstream side support 100 and the downstream side support 200, When any one of the jigs 300 and the brushes 400 is damaged, the corresponding parts can be used for replacement (refer to FIG. 3).

The method for removing sediments from sewer pipes according to the present invention is characterized in that the washing water supply pipe 520 is detachably coupled to the downstream side support 100 and the fixing body 310 of the rotary injection nozzle 300 by the tightening cap 530 The washing water distributor 520 and the washing water supply hose 540 connected thereto can be easily attached and detached.

In addition, the nozzle 330 of the rotary injection nozzle 300 is coupled to the nozzle assembly formed in the rotating body 320 and to the screw hole 326 in a detachable manner so that the nozzle 330 can be quickly and easily replaced.

The brush 400 has a plurality of solo unit coupling grooves 443 each having a T-shaped cross section formed at a predetermined interval along the circumference at the outer periphery of the cylindrical body 440, Since the plurality of solo bases 451 having a T-shaped section corresponding to the cross-sectional shape of the groove 443 and the plurality of salmo 452 formed in the outer periphery of the salmo base 451 and extending radially are formed, Only the unit 450 can be used by being replaced (refer to FIG. 3).

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or essential characteristics thereof. Therefore, the embodiments disclosed in the present invention are not intended to limit the scope of the present invention but to limit the scope of the technical idea of the present invention. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

10: sewer pipe 100: downstream side movement support
110: center frame 120: support angle
121: fixed support bar 122: movable support bar
123: wheel support part 124: bolt through hole
125: bolt guide slot 126: bolt
127: nut 130: wheel
131: Wheel axis 200: Upstream side movement support
210: center frame 220: support angle
221: fixed support bar 222: movable support bar
223: Wheel support 224: Bolt through hole
225: Bolt guide slot 226: Bolt
227: nut 230: wheel
231: Wheel axle 300: Rotary spray nozzle
310: Fixing body 311: Inner wheel coupling ring portion
320: rotating body 321: outer wheel fitting portion
322: screw hole 323: wash water inflow passage
324: inverted protrusion 325: inverted groove
326: Nozzle coupling or screw hole 327: Brush coupling shaft portion
330: Nozzle 331: Nozzle
332: Male threads 340: Bearings
341: inner ring 342: outer ring
400: brush 410: fixed disk
411: outer ring fitting portion 412:
420: downstream rotating disk 421: rotating spray nozzle coupling ring
422: screw hole 423: set screw
424: engagement ring portion 425: male thread portion
430: upstream-side rotating disk 431: inner wheel coupling shaft portion
432: coupling ring part 433: male thread part
440: Cylindrical body 441: Female thread portion
442: Female thread part 450: SOMO unit
451: Solo Base 452: Solo
460: Bearing 461: Inner ring
462: Outer ring 463: Set screw
500: wash water supply means 510: insertion hole
520: wash water supply pipe 521:
522: flange portion 523: hose coupling portion
530: tightening cap 531: cylindrical portion
532: Inner flange portion 533: Female thread portion
534: Male threads 540: Wash water supply hose

Claims (1)

A plurality of support angles 120 radially coupled to a downstream side surface of the center frame 110 and configured to be adjustable in length and a support frame 120 rotatably supported on an outer circumferential end of the support frame 120, (100) including a wheel (130) supported in rolling contact with the inner circumferential surface of the sewer pipe (10); A plurality of support angles 220 spaced upstream from the downstream side support 100 and configured to be radially coupled to the center frame 210 and adjustable in length, (200) rotatably supported on an outer circumferential side end of the sewing pipe (220) and including a wheel (230) rolling on an inner circumferential surface of the sewer pipe (10); A rotatable body 320 rotatably coupled to the fixing body 310 and a rotatable body 320 rotatably coupled to the rotatable body 320. The rotatable body 320 rotatably supports the rotatable body 320, A rotary injection nozzle 300 including a plurality of nozzles 330 for injecting washing water in a radial direction and generating a rotational force of the rotary body 320; A fixed disk 410 fixedly coupled to the center of the upstream side support 200 and a downstream rotating disk 420 coupled to the brush coupling shaft 327 of the rotating body 320 of the rotating spray nozzle 300, An upstream side rotary disk 430 rotatably supported on the upstream side fixed disk 410 and a downstream side rotary disk 430 connected to the downstream side rotary disk 420 and the upstream side rotary disk 430, A cylindrical body 440 having a plurality of S-shaped unit engaging grooves 443 having a T-shaped cross section formed at a predetermined interval along the circumference of the outer periphery of the cylindrical body 440 and a cylindrical body 440 coupled to the sulmo unit engaging groove 443, A plurality of solo bases 451 having a T-shaped cross section corresponding to the cross-sectional shape of the grooves 443 and a plurality of solo units 450 arranged in the outer circumferential portion of the solo base 451 and extending radially A brush (400) comprising: And an insertion hole 510 formed at the center of the center frame 110. The upstream end of the washing water inlet passage 323 inserted through the insertion hole 510 is connected to a downstream end A flange portion 522 formed on the outer circumferential surface of the insertion tube portion 521 to closely contact the downstream end surface of the center frame 110 and a flange portion 522 extending downward from the flange portion 522, A washing water supply pipe 520 having a hose coupling part 523 to which the washing water supply hose 540 is coupled, a cylindrical part 531 having an inner diameter corresponding to the outer diameter of the center frame 110, An inner flange portion 532 integrally formed on the downstream side end of the cylindrical portion 531 and adhered to the downstream end surface of the flange portion 522 and an outer flange portion 532 formed on the inner peripheral surface of the cylindrical portion 531, And a female screw portion 533 screwed to the male screw portion 534 Washing water supply means comprising a cap (530, 500); A preparation step of preparing a sediment removal equipment (DME) comprising:
The wheel 130 of the downstream side support 100 and the wheel 230 of the upstream side support 200 are connected to the inner circumferential surface of the sewer pipe 10 by inserting the sediment removal equipment DME into the cleaning section of the sewer pipe 10, So that the center line of the rotary injection nozzle (300) and the brush (400) coincides with the centerline of the sewer pipe (10);
The washing water is supplied from the washing water supply means 500 through the nozzle 330 of the rotary injection nozzle 300 while the washing water supply hose 540 of the washing water supply means 500 is freely released, The downstream movement support 100, the upstream side movement support 200, the rotary injection nozzle 300, the brush 400 and the washing water supply means 500 are moved in the upstream direction by the injection pressure of the washing water, The sludge 452 of the brush 400 rotating together with the rotating body 320 of the rotating spray nozzle 300 is moved to the downstream side by moving the sludge 452 An upstream moving sediment removing process for sweeping and removing foreign substances adhered to the inner circumferential surface of the sewage pipe; And
The washing water supply hose 540 of the washing water supply means 500 is pulled in the downstream direction to move the movable support 100, the upstream side movement support 200, the rotary injection nozzle 300, the brush 400, The washing water is supplied through the washing water supplying means 500 and the washing water injected from the downstream nozzle 330 is injected by the injection pressure of the washing water injected from the nozzle 330 of the rotary injection nozzle 300, The sludge 452 of the brush 400 rotating together with the rotating body 320 of the rotary spray nozzle 300 is moved to the downstream side by removing the accumulated sediment on the inner circumferential surface of the sewage pipe 10, And removing the foreign matter adhered to the inner circumferential surface of the lower surface of the substrate,
Wherein the upstream moving sediment removal process and the downstream moving sediment removal process are repeatedly performed.
KR1020150121508A 2015-08-28 2015-08-28 Method for removing deposit in sewer pipe system with rotating nozzle and brush KR101814733B1 (en)

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CN106966077A (en) * 2017-03-22 2017-07-21 濮阳市盛源能源科技股份有限公司 One kind can clean formula holding vessel blow-down pipe and its application method
CN107965044A (en) * 2017-11-10 2018-04-27 桐乡市搏腾贸易有限公司 A kind of two-sided cleaning device of municipal works pipeline
CN108581638A (en) * 2018-04-18 2018-09-28 上海交通大学 Overlength part movable type organisation of working
CN108906791A (en) * 2018-07-02 2018-11-30 芜湖万向新元环保科技有限公司 A kind of material pneumatic transport equipment cleaning device
KR101997651B1 (en) * 2018-12-13 2019-07-09 (주)신명건설기술공사 Apparatus for removing deposit in sewer pipe
AT521129A1 (en) * 2018-03-22 2019-10-15 Mock Manfred Device for the disinfection of pipelines, containers and structures
CN112482550A (en) * 2020-11-09 2021-03-12 熊兴松 Hydraulic engineering sludge pipeline mediation clean-up equipment
CN112695848A (en) * 2021-01-27 2021-04-23 陈宙清 Kitchen sewer pipe capable of being cleaned quickly
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CN106966077A (en) * 2017-03-22 2017-07-21 濮阳市盛源能源科技股份有限公司 One kind can clean formula holding vessel blow-down pipe and its application method
CN107965044A (en) * 2017-11-10 2018-04-27 桐乡市搏腾贸易有限公司 A kind of two-sided cleaning device of municipal works pipeline
CN107965044B (en) * 2017-11-10 2020-07-10 广东宇华建设工程有限公司 Two-sided belt cleaning device of pipeline for municipal works
AT521129A1 (en) * 2018-03-22 2019-10-15 Mock Manfred Device for the disinfection of pipelines, containers and structures
CN108581638A (en) * 2018-04-18 2018-09-28 上海交通大学 Overlength part movable type organisation of working
CN108906791A (en) * 2018-07-02 2018-11-30 芜湖万向新元环保科技有限公司 A kind of material pneumatic transport equipment cleaning device
KR101997651B1 (en) * 2018-12-13 2019-07-09 (주)신명건설기술공사 Apparatus for removing deposit in sewer pipe
KR20220045582A (en) * 2020-10-05 2022-04-13 주식회사 수도이앤씨 Apparatus for cleaning water pipe
CN112482550A (en) * 2020-11-09 2021-03-12 熊兴松 Hydraulic engineering sludge pipeline mediation clean-up equipment
CN112695848A (en) * 2021-01-27 2021-04-23 陈宙清 Kitchen sewer pipe capable of being cleaned quickly
KR102274686B1 (en) * 2021-02-09 2021-07-08 유한회사 한국티엠에스 Pipeline cleaning device using brush

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