EP0911452A2 - Dispositif d'entraínement, méthode d'inspection/nettoyage des embranchements de canalisation et dispositif associé - Google Patents

Dispositif d'entraínement, méthode d'inspection/nettoyage des embranchements de canalisation et dispositif associé Download PDF

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Publication number
EP0911452A2
EP0911452A2 EP98308671A EP98308671A EP0911452A2 EP 0911452 A2 EP0911452 A2 EP 0911452A2 EP 98308671 A EP98308671 A EP 98308671A EP 98308671 A EP98308671 A EP 98308671A EP 0911452 A2 EP0911452 A2 EP 0911452A2
Authority
EP
European Patent Office
Prior art keywords
elastic hose
branch pipe
hose
elastic
tip portion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP98308671A
Other languages
German (de)
English (en)
Other versions
EP0911452A3 (fr
Inventor
Takao Kamiyama
Yasuhiro Yokoshima
Shigeru Endoh
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GET Inc
Shonan Plastic Manufacturing Co Ltd
Yokoshima and Co
Original Assignee
GET Inc
Shonan Plastic Manufacturing Co Ltd
Yokoshima and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP9292404A external-priority patent/JPH11128865A/ja
Priority claimed from JP9292344A external-priority patent/JPH11128864A/ja
Application filed by GET Inc, Shonan Plastic Manufacturing Co Ltd, Yokoshima and Co filed Critical GET Inc
Publication of EP0911452A2 publication Critical patent/EP0911452A2/fr
Publication of EP0911452A3 publication Critical patent/EP0911452A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • 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
    • E03F9/005—Apparatus for simultaneously pushing and rotating a cleaning device carried by the leading end of a cable or an assembly of rods
    • 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
    • B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
    • B08B9/043—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
    • B08B9/0433—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes provided exclusively with fluid jets as cleaning tools
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
    • E03F7/12—Installations enabling inspection personnel to drive along sewer canals

Definitions

  • the present invention relates to a driving device for moving an elastic hose backward and forward by the action of fluid pressure, a branch pipe inspecting/cleaning method using the driving device, and a branch pipe inspecting/cleaning device using the driving device.
  • a branch pipe 151 which extends from a house as a user of sewerage and joins a drain pipe 150 as a main pipe, is periodically cleaned or inspected. Since a trough (service lap) 152 is provided between the drain pipe 150 and the house in many cases, in general, cleaning and inspection of the inside of the branch pipe 151 can be relatively easily carried out through the trough 152.
  • a trough (service lap) 152 is provided between the drain pipe 150 and the house in many cases, in general, cleaning and inspection of the inside of the branch pipe 151 can be relatively easily carried out through the trough 152.
  • a flexible elastic hose is moved forward by a driving device or by the propelling force of high pressure water reversely jetted from a cleaning nozzle attached to the tip portion of the elastic hose, the elastic hose is introduced into the inside of the branch pipe through the drain pipe (main pipe), the inside of the branch pipe is inspected by means of a TV (television) camera attached to the tip portion of the elastic hose, and the inside of the branch pipe is cleaned by water reversely jetted from the cleaning nozzle attached to the tip portion of the elastic hose.
  • a TV television
  • the driving device has been constructed such that a pair of rolling bodies between which the elastic hose or elastic cable is clamped, are rotated so that the elastic hose is moved backward and forward by frictional force.
  • the driving device has been constructed such that a pair of rolling bodies between which the elastic hose or elastic cable is clamped, are rotated so that the elastic hose is moved backward and forward by frictional force.
  • the present invention has been made in view of the above described problems, and an object of the present invention is to provide a driving device which is capable of smoothly introducing an elastic hose having a tip portion to which a TV camera or a reverse jet nozzle is attached, into the inside of a branch pipe.
  • Another object of the present invention is to provide a branch pipe inspecting/cleaning method and a branch pipe inspecting/cleaning device in which inspection, cleaning, or the inspection and cleaning of the inside of a branch pipe can be positively and easily carried out from the side of a main pipe.
  • a driving device for moving an elastic hose backward and forward by the action of fluid pressure is characterized by comprising: a cylinder member into which the elastic hose is inserted and communicated; a piston member attached to an outer circumference of the elastic hose and sliding within the cylinder member; and pressure fluid supplying means for alternately supplying a pressure fluid into airtight spaces formed with the piston member within the cylinder member.
  • a driving device for moving an elastic hose backward and forward by the action of fluid pressure is characterized by comprising: a flexible pressure bag; a pair of rollers attached to the elastic hose and clamping the pressure bag; and pressure fluid supplying means for alternately supplying a pressure fluid into airtight spaces formed with the rollers within the pressure bag.
  • a branch pipe inspecting device is characterized by comprising: a monitor device disposed on the ground; a flexible elastic hose, one end of the elastic hose being connected to the monitor device; a TV (television) camera connected to the other end of the elastic hose; a driving device for moving the elastic hose backward and forward by the action of fluid pressure; and an in-hose operating robot for supporting a part of the elastic hose and bending the elastic hose.
  • a branch pipe cleaning device is characterized by comprising: a fluid pump disposed on the ground; a flexible elastic hose, one end of the elastic hose being connected to the fluid pump; a reverse jet nozzle connected to the other end of the elastic hose; a driving device for moving the elastic hose backward and forward by the action of fluid pressure; and an in-hose operating robot for supporting a part of the elastic hose and bending the elastic hose.
  • a branch pipe inspecting/cleaning device is characterized by comprising: a monitor device and a fluid pump disposed on the ground; a flexible elastic hose, one end of the elastic hose being connected to the monitor device and the fluid pump; a TV camera and a reverse jet nozzle connected to the other end of the elastic hose; a driving device for moving the elastic hose backward and forward by the action of fluid pressure; and an in-hose operating robot for supporting a part of the elastic hose and bending the elastic hose.
  • a branch pipe inspecting/cleaning device according to the fifth aspect of the present invention is characterized in that at least an electric cable and a fluid hose are inserted into the elastic hose.
  • a branch pipe inspecting method is characterized by comprising the steps of: disposing a driving device operated by fluid pressure and an in-hose operating robot in the vicinity of a branch pipe opening portion within a main pipe; supporting a part of a flexible elastic hose by the in-hose operating robot to bend the elastic hose, one end of the elastic hose being connected to a monitor device disposed on the ground; introducing the elastic hose through the main pipe into a branch pipe by driving force of the driving device; and inspecting an inside of the branch pipe by the monitor device through a TV camera attached to a tip portion of the elastic hose.
  • a branch pipe inspecting method is characterized in that the elastic hose is inserted into a flexible tubular guide member supported by the in-hose operating robot, and the in-hose operating robot is driven to bend the elastic hose so that the tip portion of the elastic hose is introduced into the branch pipe.
  • a branch pipe inspecting method is characterized in that a transmitter is attached to the tip portion of the elastic hose or to the TV camera attached to the tip portion, and a receiver receives a signal transmitted from the transmitter so that the tip portion of the elastic hose is detected.
  • a branch pipe inspecting method is characterized in that a TV camera is disposed on the in-hose operating robot, an indication portion indicating length is provided on the elastic hose, and a length of the elastic hose introduced into the branch pipe is detected by monitoring the indication portion by the TV camera.
  • a branch pipe cleaning method is comprised of the steps of: disposing a driving device operated by fluid pressure and an in-hose operating robot in the vicinity of a branch pipe opening portion within a main pipe; supporting a part of a flexible elastic hose by the in-hose operating robot to bend the elastic hose, one end of the elastic hose being connected to a fluid pump disposed on the ground;
  • a branch pipe cleaning method is characterized in that the elastic hose is inserted into a flexible tubular guide member supported by the in-hose operating robot, and the in-hose operating robot is driven to bend the elastic hose so that the tip portion is introduced into the branch pipe.
  • a branch pipe cleaning method is characterized in that a transmitter is attached to the tip portion of the elastic hose or to the reverse jet nozzle attached to the tip portion, and a receiver receives a signal transmitted from the transmitter so that the tip portion of the elastic hose is detected.
  • a branch pipe cleaning method is characterized in that a TV camera is fixed onto the in-hose operating robot, an indication portion indicating length is provided on the elastic hose, and a length of the elastic hose introduced into the branch pipe is detected by monitoring the indication portion by the TV camera.
  • a branch pipe inspecting/cleaning method is characterized by comprising the steps of: disposing a driving device operated by fluid pressure and an in-hose operating robot in the vicinity of a branch pipe opening portion within a main pipe; supporting a part of a flexible elastic hose by the in-hose operating robot to bend the flexible elastic hose, one end of the elastic hose being connected to a monitor device and a fluid pump both disposed on the ground; introducing the elastic hose through the main pipe into a branch pipe by propelling force of a pressure fluid jetted from a reverse jet nozzle attached to a tip portion of the elastic hose and driving force of the driving device; inspecting an inside of the branch pipe by the monitor device through a TV camera attached to the tip portion of the elastic hose; and at the same time as the inspecting step, cleaning the inside of the branch pipe by the pressure fluid jetted from the reverse jet nozzle.
  • a branch pipe inspecting/cleaning method is characterized in that the elastic hose is inserted into a flexible tubular guide member supported by the in-hose operating robot, and the in-hose operating robot is driven to bend the elastic hose so that the tip portion of the elastic hose is introduced into the branch pipe.
  • a branch pipe inspecting/cleaning method is characterized in that a transmitter is attached to the tip portion of the elastic hose, the TV camera attached to the tip portion, or the reverse jet nozzle attached to the tip portion, and a receiver receives a signal transmitted from the transmitter so that the tip portion of the elastic hose is detected.
  • a branch pipe inspecting/cleaning method is characterized in that a TV camera is fixed onto the in-hose operating robot, an indication portion indicating length is provided on the elastic hose, and a length of the elastic hose introduced into the branch pipe is detected by monitoring the indication portion by the TV camera.
  • a driving device moves an elastic hose backward and forward always positively by a large constant driving force.
  • the following effects can be obtained. That is, even if a branch pipe has a plurality of curves, the elastic hose can be always smoothly introduced into the branch pipe, and the inside of the branch pipe can be easily and positively inspected by a TV camera attached to the tip portion of the elastic hose.
  • the inside of the branch hose can be easily and positively cleaned by a pressure fluid jetted from a reverse jet nozzle attached to the tip portion of the elastic hose. Further, the inside of the branch pipe can be easily and positively inspected and cleaned by using both the TV camera and the reverse jet nozzle attached to the tip portion of the elastic hose.
  • Fig. 1 is a sectional view showing a branch pipe inspecting device according to a first embodiment of the present invention and a branch pipe inspecting method carried out by using the device.
  • Fig. 2 is a sectional view showing the structure and function of a driving device of the branch pipe inspecting device according to the first embodiment of the present invention.
  • Fig. 3 is a sectional view showing the structure and function of the driving device of the branch pipe inspecting device according to the first embodiment of the present invention.
  • Fig. 4 is an enlarged sectional view taken along line A-A in Fig. 1.
  • Fig. 5 is a sectional view showing a branch pipe cleaning device according to a second embodiment of the present invention and a branch pipe cleaning method carried out by using the device.
  • Fig. 6 is a sectional view showing the structure and function of a driving device of the branch pipe cleaning device according to the second embodiment of the present invention.
  • Fig. 7 is a sectional view showing the structure and function of the driving device of the branch pipe cleaning device according to the second embodiment of the present invention.
  • Fig. 8 is a sectional view showing a branch pipe inspecting device according to a third embodiment of the present invention and a branch pipe inspecting method carried out by using the device.
  • Fig. 9 is a sectional view showing a branch pipe inspecting/cleaning device according to a fourth embodiment of the present invention and a branch pipe inspecting/cleaning method carried out by using the device.
  • Fig. 10 is a sectional view taken along line B-B in Fig. 9.
  • Fig. 11 is a sectional view showing a branch pipe inspecting/cleaning device according to a fifth embodiment of the present invention and a branch pipe inspecting/cleaning method carried out by using the device.
  • Fig. 12 is a sectional view showing a branch pipe inspecting/cleaning device according to a sixth embodiment of the present invention and a branch pipe inspecting/cleaning method carried out by using the device.
  • Fig. 13 is a sectional view showing a branch pipe inspecting/cleaning device according to other embodiment of the present invention.
  • Fig. 14 is a sectional view showing a branch pipe inspecting/cleaning device according to other embodiment of the present invention.
  • Fig. 15 is a sectional view showing a drain pipe (main pipe), a branch pipe, and a trough (service lap).
  • Fig. 1 is a sectional view showing a branch pipe inspecting device according to a first embodiment of the present invention and a branch pipe inspecting method carried out by using the device.
  • Figs. 2 and 3 are sectional views showing the structure and function of a driving device constituting the branch pipe inspecting device, and
  • Fig. 4 is an enlarged sectional view taken along line A-A in Fig. 1.
  • reference numeral 50 denotes a main pipe of a drain pipe and the like
  • 51 denotes a small-diameter branch pipe which extends from a house on the ground and joins the main pipe 50.
  • a trough (service lap) is not provided between the main pipe 50 and the house, so that it is impossible to inspect the branch pipe 51 through the trough (service lap).
  • the branch pipe inspecting device of the present invention is used in such a case to inspect the branch pipe 51. The structure of the branch pipe inspecting device of this embodiment will be described below.
  • reference numeral 1 denotes a flexible elastic hose, and an electric cable 2 is led in the elastic hose 1 as shown in Fig. 4.
  • One end of the elastic hose 1 is connected to a not-shown TV monitor device disposed on the ground.
  • a monitor unit 4 is attached to the tip portion of the elastic hose 1.
  • the monitor unit 4 includes a TV camera 6 at the center thereof, and a plurality of illuminating lights 7 are disposed around the TV camera 6.
  • the TV camera 6 and the illuminating lights 7 are connected to the electric cable 2 led in the elastic hose 1.
  • reference numeral 10 denotes a driving device for mechanically moving the elastic hose 1 backward and forward by fluid pressure.
  • the driving device 10 includes a pressure hose 11 as a cylinder member, and the elastic hose 1 is inserted into the pressure hose 11. Insertion portions of both ends of the pressure hose 11 in the lengthwise direction, through which the elastic hose 1 is inserted, are airtightly sealed with sealing members 12.
  • the inside of the pressure hose 11 is partitioned by the pig 13 to form two airtight spaces S1 and S2.
  • Air hoses 14 and 15 respectively opening into the airtight spaces S1 and S2 formed in the inside of the pressure hose 11, are connected to the pressure hose 11, and the respective air hoses 14 and 15 are connected to not-shown compressors disposed on the ground through not-shown changeover valves.
  • reference numeral 16 denotes an in-hose operating robot, and a main body 16a of the in-hose operating robot 16 is supported by a sledge 16b.
  • a head 16c which is advanced or retreated by hydraulic pressure in the direction of an illustrated arrow "a” and is rotated in the direction of an illustrated arrow "b", is mounted on the front portion of the main body 16a.
  • a hydraulic cylinder 17 is fixed onto the head 16c.
  • a coil spring 18 as a tubular guide member is supported on the front portion of a rod 17a of the hydraulic cylinder 17, which moves up and down in the direction of an illustrated arrow "c".
  • a part of the elastic hose 1 is supported by the in-hose operating robot 16 through the coil spring 18, and graduations 19 indicting the length are marked on the outer circumference of a portion of the elastic hose 1 in front of the driving device 10.
  • a lift 16d and a TV camera 20 are fixed onto the upper portion of the main body 16a of the in-hose operating robot 16, and a fixing portion 16e is attached to the upper portion of the lift 16d.
  • the TV camera 20 is electrically connected through an electric cable 21 to a not-shown TV monitor device disposed on the ground.
  • a hydraulic hose 22 from a not-shown hydraulic pump disposed on the ground is connected to the main body 16a of the in-hose operating robot 16, and tractive ropes 23 and 24 are respectively attached to the sledge 16b.
  • the in-hose operating robot 16 and the driving device 10 are coupled to each other by the tractive rope 24, and a tractive rope 25 is attached to the driving device 10.
  • the in-hose operating robot 16 which supports a part of the elastic hose 1 through the coil spring 18, and the driving device 10 are introduced into the main pipe 50.
  • the in-hose operating robot 16 and the driving device 10 are fixed and disposed in the vicinity of a branch pipe opening portion (portion where the branch pipe 51 opens into the main pipe 50) 50a in the main pipe 50 while monitoring of the inside of the main pipe 50 is carried out by means of the TV camera 20 disposed onto the in-hose operating robot 16. That is, the lift 16d of the in-hose operating robot 16 is raised to press the fixing portion 16e attached to the upper end portion of the lift against the inner wall of the main pipe 50, so that the in-hose operating robot 16 is fixed.
  • the elastic hose 1 is moved forward in the main pipe 50 by the driving force of the driving device 10.
  • the in-hose operating robot 16 is driven so that the coil spring 18 attached to the rod 17a of the hydraulic cylinder 17 is bent together with the elastic hose 1 to introduce the tip portion of the elastic hose 1 and the monitor unit 4 attached to the tip portion into the branch pipe 51.
  • the elastic hose 1 and the monitor unit 4 attached thereto are introduced into the branch pipe 51 as described above, the elastic hose 1 and the monitor unit 4 are moved forward and upward in the branch pipe 51 by the driving force of the driving device 10.
  • the TV camera 6 takes images of the inside of the branch pipe 51, and the inside of the branch pipe is inspected by the TV monitor device disposed on the ground.
  • the graduations 19 marked on the outer circumference of the elastic hose 1 are read by the TV camera 20 fixed onto the in-hose operating robot 16, so that the insertion length of the elastic hose 1 in the branch pipe 51 can be detected.
  • the position of the branch pipe 51 can be confirmed on the ground. Accordingly, after the inspection of the branch pipe 51 is ended, the ground at the detected branch pipe 51 is dug up and a trough (service lap) can be disposed in the dug portion.
  • the driving device 10 moves the elastic hose 1 backward and forward always positively by the large constant driving force.
  • the elastic hose 1 can be always smoothly introduced into the branch pipe 51, and the inside of the branch pipe 51 can be easily and positively inspected by the monitor device disposed on the ground through the monitor unit 4 (TV camera 6 and illuminating lights 7) attached to the tip portion.
  • the driving device 10 is disposed in the vicinity of the branch pipe opening portion 50a of the main pipe 50, it is possible to effectively push the elastic hose 1 into the branch pipe 51.
  • FIG. 5 is a sectional view showing a branch pipe cleaning device according to this embodiment and a branch pipe cleaning method carried out by using this device
  • Figs. 6 and 7 are sectional views showing the structure and function of a driving device constituting the branch pipe cleaning device.
  • the same elements as those shown in Figs. 1 to 4 are designated by the same reference numerals, and the description thereof will be omitted.
  • a reverse jet nozzle 5 for cleaning is attached to a tip portion of an elastic hose 1, and the elastic hose 1 is moved backward and forward by a driving device 30 different from that of the first embodiment in the type.
  • the driving device 30 of this embodiment includes a flexible airtight pressure bag 31, and a pair of rollers 32 which are attached to the elastic hose 1 and pinches the pressure bag 31.
  • the pressure bag 31 is partitioned by the rollers 32 to form two airtight spaces S1 and S2.
  • Air hoses 33 and 34 which respectively open in the airtight spaces S1 and S2 formed in the inside of the pressure bag 31, are connected to the pressure bag 31.
  • the respective air hoses 33 and 34 are connected to not-shown compressors disposed on the ground through not-shown changeover valves.
  • the elastic hose 1 is moved together with the rollers 32 in the same direction, so that the elastic hose 1 and the reverse jet nozzle 5 attached to the tip portion thereof are forcibly moved forward by a predetermined driving force based on the pressure of the compressed air.
  • the air in the other airtight space S2 is exhausted into the atmosphere through the air hose 34.
  • the elastic hose 1 can be forcibly pushed into the branch pipe 51 by the driving force of the driving device 30 in addition to the propelling force generated by the reverse jet of high pressure water from the reverse jet nozzle 5, the elastic hose 1 and the reverse jet nozzle 5 can be smoothly inserted into the branch pipe 51 and it is possible to easily and positively clean the branch pipe 51 by the high pressure water reversely jetted from the reverse jet nozzle 5.
  • the reverse jet nozzle 5 is moved downward in the branch pipe 51 and the inside of the branch pipe 51 is further cleaned by the high pressure water reversely jetted from the reverse jet nozzle 5, so that deposit earth and soil, filth, and the like attached to the inner wall of the branch pipe 51 are positively removed.
  • the reverse jet nozzle 5 is pulled back to the opening portion (branch pipe opening portion 50a) of the branch pipe 51 opening in the main pipe 50, the removed deposit earth and soil, filth, and the like as well as water can be dropped into the main pipe 50.
  • the elastic hose 1 is supported by the coil spring 18, the earth and soil, and the filth dropped from the branch pipe 51 into the main pipe 50 pass through the coil spring 18 so that these are not accumulated in the coil spring 18.
  • a transmitter 35 When a transmitter 35 is attached to the reverse jet nozzle 5 as shown in Fig. 5, and a signal transmitted from the transmitter 35 is received by a receiver on the ground, the tip portion of the elastic hose 1 can be detected so that the position of the branch pipe 51 can be confirmed on the ground. Accordingly, after the cleaning of the branch pipe 51 is ended, the ground at the detected branch pipe 51 is dug up and a trough (service lap) can be disposed in the dug portion.
  • the transmitter 35 may be attached to the cleaning nozzle 5.
  • the driving device 10 adopted in the first embodiment may be used instead of the driving device 30.
  • the driving device 30 adopted in this embodiment may be used instead of the driving device 10.
  • Fig. 8 is a sectional view showing a branch pipe inspecting device according to the third embodiment and a branch pipe inspecting method carried out by using this device.
  • the same elements as those shown in Fig. 1 are designated by the same reference numerals and the description thereof will be omitted.
  • a driving device 10 is similar to that in the first embodiment.
  • an in-hose operating robot 16 is a self-propelled one, and the driving device 10 is attached to the in-hose operating robot 16 to unite both.
  • a part of an elastic hose 1 is inserted into a guide pipe 36 as a flexible tubular guide member, so that the hose is supported by the in-hose operating robot 16 through the guide pipe 36.
  • the elastic hose 1 can be forcibly pushed into the branch pipe 51 by the running force of the self-propelled in-hose operating robot 16 in addition to the driving force of the driving device 10, the elastic hose 1 and the monitor unit 4 can be smoothly inserted into the branch pipe 51 and it is possible to easily and positively inspect the branch pipe 51.
  • a branch pipe cleaning device similar to the second embodiment is constituted, and it is possible to easily and positively clean the inside of the branch pipe 51 by using this branch pipe cleaning device.
  • Fig. 9 is a sectional view showing a branch pipe inspecting/cleaning device according to the fourth embodiment of the present invention and a branch pipe inspecting/cleaning method carried out by using the device
  • Fig. 10 is an enlarged sectional view taken along line B-B in Fig. 9.
  • the same elements as those shown in Figs. 1 to 4 are designated by the same reference numerals, and the description thereof will be omitted.
  • inspection and cleaning of the inside of the branch pipe can be simultaneously carried out.
  • reference numeral 1 denotes a flexible elastic hose, and an electric cable 2 and a fluid hose 3 are led in the elastic hose 1 as shown in Fig. 10.
  • One end of the elastic hose 1 is connected to a not-shown TV monitor device and a water pump disposed on the ground. That is, one end of the electric cable 2 led in the inside of the elastic hose 1 is connected to the not-shown TV monitor, and one end of the fluid hose 3 is connected to an outlet of the not-shown water pump.
  • a monitor unit 4 and a reverse jet nozzle 5 as a cleaning nozzle are attached to the tip portion of the elastic hose 1 at upper and lower positions.
  • the monitor unit 4 includes a TV camera 6 at the center thereof, and a plurality of illuminating lights 7 are disposed around the TV camera 6.
  • the TV camera 6 and the illuminating lights 7 are connected to the electric cable 2 led in the elastic hose 1, and the reverse jet nozzle 5 is connected to the fluid hose 3 led in the inside of the elastic hose 1.
  • the in-hose operating robot 16 which supports a part of the elastic hose 1 through the coil spring 18, and the driving device 10 are introduced into the main pipe 50.
  • the in-hose operating robot 16 and the driving device 10 are fixed and disposed in the vicinity of the branch pipe opening portion (portion where the branch pipe 51 opens in the main pipe 50) 50a in the main pipe 50 while monitoring of the inside of the main pipe 50 is carried out by the TV camera 20 fixed onto the in-hose operating robot 16. That is, the lift 16d of the in-hose operating robot 16 is raised to press the fixing portion 16e attached to the upper end of the lift against the inner wall of the main pipe 50, so that the in-hose operating robot 16 is fixed.
  • the not-shown water pump disposed on the ground is driven so that high pressure water is sent into the reverse jet nozzle 5 attached to the tip portion of the elastic hose 1 through the fluid hose 3 led in the elastic hose 1.
  • the high pressure water is made to be reversely jetted (jetted in the direction reverse to the advancing direction of the elastic hose 1) from the reverse jet nozzle 5, and at the same time, the driving device 10 is driven.
  • the elastic hose 1 is moved forward in the main pipe 50 by both the propelling force generated by the reverse jet of the high pressure water from the reverse jet nozzle 5 and the driving force of the driving device 10.
  • the elastic hose 1 is moved forward in the main pipe 50 by both the propelling force generated by the reverse jet of the high pressure water and the mechanical driving force of the driving device 10 having the similar function to that described before.
  • the monitor unit 4 TV camera 6 and illuminating lights 7) and the reverse jet nozzle 5, which are attached to the tip portion of the elastic hose, reach the branch pipe opening portion 50a of the main pipe 50, the in-hose operating robot 16 is driven so that the coil spring 18 attached to the rod 17a of the hydraulic cylinder 17 is bent together with the elastic hose 1.
  • the tip portion of the elastic hose 1 as well as the monitor unit 4 and the reverse jet nozzle 5 which are attached to the tip portion are made to be introduced into the branch pipe 51.
  • the tip portion of the elastic hose 1 as well as the monitor unit 4 and the reverse jet nozzle 5 which are attached to the tip portion are introduced into the branch pipe 51, these are moved forward and upward in the branch pipe 51 by both the propelling force generated by the reverse jet of the highpressure water and the driving force of the driving device 10.
  • the TV camera 6 takes images of the inside of the branch pipe 51, and the inside of the branch pipe is inspected by the TV monitor device disposed onto the ground.
  • the inside of the branch pipe 51 is cleaned by the high pressure water reversely jetted from the reverse jet nozzle 5.
  • the graduations 19 marked on the outer circumference of the elastic hose 1 are simultaneously read by the TV camera 20 fixed onto the in-hose operating robot 16, so that the insertion length of the elastic hose 1 in the branch pipe 51 can be detected. As a result, the position of the branch pipe 51 can be confirmed on the ground. Accordingly, after the inspection and cleaning of the branch pipe 51 is ended, the ground at the detected branch pipe 51 is dug up and a trough (service lap) can be disposed in the dug portion.
  • the elastic hose 1 is forcibly pushed into the branch pipe 51 not only by the propelling force generated by the reverse jet of the high pressure water from the reverse jet nozzle 5 but also by the driving force of the driving device 10.
  • the elastic hose 1, the monitor unit 4 (TV camera 6 and illuminating lights 7), and the reverse jet nozzle 5 can be smoothly inserted into the branch pipe 51, and the inside of the branch pipe 51 can be easily and positively inspected and cleaned.
  • the driving device 10 is disposed in the vicinity of the branch pipe opening portion 50a of the main pipe 50, it is possible to effectively push the elastic hose 1 into the branch pipe 51.
  • the reverse jet nozzle 5 is moved downward in the branch pipe 51 and the inside of the branch pipe 51 is further cleaned by the high pressure water reversely jetted from the reverse jet nozzle 5, so that deposit earth and soil, filth, and the like attached to the inner wall of the branch pipe 51 are positively removed.
  • the reverse jet nozzle 5 is pulled back to the opening portion (branch pipe opening portion 50a) of the branch pipe 51 opening in the main pipe 50, the removed deposit earth and soil, filth, and the like as well as water can be dropped into the main pipe 50.
  • the elastic hose 1 is supported by the coil spring 18, the earth and soil, and the filth dropped from the branch pipe 51 into the main pipe 50 pass through the coil spring 18 so that these are not accumulated in the coil spring 18.
  • Fig. 11 is a sectional view showing a branch pipe inspecting/cleaning device according to this embodiment of the present invention and a branch pipe inspecting/cleaning method carried out by using the device.
  • the same elements as those shown in Fig. 5 are designated by the same reference numerals, and the description thereof will be omitted.
  • This embodiment is different from the fourth embodiment in only the structure of a driving device of the branch pipe inspecting/cleaning device.
  • the driving device 30 of this embodiment is the same as that shown in the second embodiment (see Figs. 6 and 7), so that the structure and function thereof will be omitted.
  • the elastic hose 1 can be forcibly pushed into the branch hose 51 not only by the propelling force generated by the reverse jet of the high pressure water from the reverse jet nozzle 5 but also by the driving force of the driving device 30.
  • the elastic hose 1, the monitor unit 4, and the reverse jet nozzle 5 can be smoothly inserted into the branch pipe 51, and the branch pipe 51 can be easily and positively inspected and cleaned.
  • a transmitter 35 When a transmitter 35 is attached to the monitor unit 4 as shown in Fig. 11, and a signal transmitted from the transmitter 35 is received by a receiver on the ground, the tip portion of the elastic hose 1 can be detected so that the position of the branch pipe 51 can be confirmed on the ground. Accordingly, after the cleaning and inspection of the branch pipe 51 is ended, the ground at the detected branch pipe 51 is dug up and a trough (service lap) can be disposed in the dug portion.
  • the transmitter 35 may be attached to the reverse jet nozzle 5.
  • Fig. 12 is a sectional view showing a branch pipe inspecting/cleaning device according to the sixth embodiment of the present invention and a branch pipe inspecting/cleaning method carried out by using this device.
  • the same elements as those shown in Fig. 8 are designated by the same reference numerals and the description thereof will be omitted.
  • a driving device 10 is similar to that in the first or fourth embodiment, and an in-hose operating robot 16 is a self-propelled one similar to the third embodiment (see Fig. 8).
  • the driving device 10 is attached to the in-hose operating robot 16 to unite both.
  • a part of an elastic hose 1 is inserted into a guide pipe 36 as a flexible tubular guide member, and is supported by the in-hose operating robot 16 through the guide pipe 36.
  • the elastic hose 1 can be forcibly pushed into the branch pipe 51 not only by the propelling force generated by the reverse jet of the high pressure water from the reverse jet nozzle 5 but also by the driving force of the driving device 10, the elastic hose 1, the monitor unit 4, and the reverse jet nozzle 5 can be smoothly inserted into the branch pipe 51 and the branch pipe 51 can be easily and positively inspected and cleaned.
  • the TV camera 6 and the illuminating lights 7 into a monitor unit 4 separate from the reverse jet nozzle 5, and the monitor unit 4 may be detachably attached to the reverse jet nozzle 5 through a connector 40.
  • modification may be done. That is, the electric cable 2 and the fluid hose 3 are bundled to form the elastic hose 1, the monitor unit 4 constituted by the TV camera 6, the illuminating lights 7, and an amplifying or image processing plate 41 is detachably attached to the tip portion of the electric cable 2, and the reverse jet nozzle 5 as a cleaning nozzle is attached to the tip portion of the fluid hose 3.
  • a driving device moves an elastic hose backward and forward always positively by a large constant driving force.
  • the elastic hose can be always smoothly introduced into the branch pipe, and the inside of the branch pipe can be easily and positively inspected by a TV camera attached to the tip portion of the elastic hose.
  • the inside of the branch hose can be easily and positively cleaned by a pressure fluid jetted from a reverse jet nozzle attached to the tip portion of the elastic hose.
  • the inside of the branch pipe can be easily and positively inspected and cleaned by using both the TV camera and the reverse jet nozzle attached to the tip portion of the elastic hose.

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
EP98308671A 1997-10-24 1998-10-23 Dispositif d'entraínement, méthode d'inspection/nettoyage des embranchements de canalisation et dispositif associé Withdrawn EP0911452A3 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP9292404A JPH11128865A (ja) 1997-10-24 1997-10-24 駆動装置と枝管点検方法及び装置並びに枝管清掃方法及び装置
JP292344/97 1997-10-24
JP292404/97 1997-10-24
JP29240497 1997-10-24
JP9292344A JPH11128864A (ja) 1997-10-24 1997-10-24 枝管清掃・点検方法及び装置
JP29234497 1997-10-24

Publications (2)

Publication Number Publication Date
EP0911452A2 true EP0911452A2 (fr) 1999-04-28
EP0911452A3 EP0911452A3 (fr) 2000-03-01

Family

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Application Number Title Priority Date Filing Date
EP98308671A Withdrawn EP0911452A3 (fr) 1997-10-24 1998-10-23 Dispositif d'entraínement, méthode d'inspection/nettoyage des embranchements de canalisation et dispositif associé

Country Status (2)

Country Link
EP (1) EP0911452A3 (fr)
KR (1) KR19990037364A (fr)

Cited By (11)

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DE102009031052A1 (de) * 2009-06-30 2011-01-27 Jt-Elektronik Gmbh Verfahren und Vorrichtung zur Inspektion und gegebenenfalls Sanierung von in die Straßendecke mündenden Schächten
US20130215255A1 (en) * 2012-02-21 2013-08-22 Pure Software Solutions, Inc. Pipeline cleaning systems and methods
US20140218501A1 (en) * 2005-09-08 2014-08-07 Ulc Robotics, Inc. Pipeline Inspection System
EP3696335A1 (fr) * 2019-02-13 2020-08-19 iPEK International GmbH Système d'inspection de canal et/ou de maintenance
CN112064775A (zh) * 2020-09-15 2020-12-11 孙国花 一种市政用便于工人下水管道作业装置
CN112676281A (zh) * 2020-12-14 2021-04-20 马鞍山章鱼心网络科技服务有限公司 行驱式管道内壁双向清洁装置
US11025039B2 (en) 2016-11-14 2021-06-01 Condux International, Inc. Transmission line installation system
US11255479B2 (en) 2015-04-29 2022-02-22 Condux International, Inc. System and method of mapping a duct
CN115025939A (zh) * 2022-06-16 2022-09-09 包头市军达管业有限公司 一种涂塑钢管涂刷装置
CN116371840A (zh) * 2023-05-26 2023-07-04 山西太康高科节能股份有限公司 一种制冷管的清理装置
US11731175B1 (en) * 2020-04-21 2023-08-22 Epl Solutions, Inc. High-speed chain cutter apparatus to clean and descale pipes

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140218501A1 (en) * 2005-09-08 2014-08-07 Ulc Robotics, Inc. Pipeline Inspection System
DE102009031052A1 (de) * 2009-06-30 2011-01-27 Jt-Elektronik Gmbh Verfahren und Vorrichtung zur Inspektion und gegebenenfalls Sanierung von in die Straßendecke mündenden Schächten
US20130215255A1 (en) * 2012-02-21 2013-08-22 Pure Software Solutions, Inc. Pipeline cleaning systems and methods
US9456182B2 (en) * 2012-02-21 2016-09-27 Pure Software Solutions, Inc. Pipeline cleaning systems and methods
US11255479B2 (en) 2015-04-29 2022-02-22 Condux International, Inc. System and method of mapping a duct
US11025039B2 (en) 2016-11-14 2021-06-01 Condux International, Inc. Transmission line installation system
US11002399B2 (en) 2019-02-13 2021-05-11 Ipek International Gmbh Sewer inspection and/or maintenance system
EP3696335A1 (fr) * 2019-02-13 2020-08-19 iPEK International GmbH Système d'inspection de canal et/ou de maintenance
US11731175B1 (en) * 2020-04-21 2023-08-22 Epl Solutions, Inc. High-speed chain cutter apparatus to clean and descale pipes
CN112064775A (zh) * 2020-09-15 2020-12-11 孙国花 一种市政用便于工人下水管道作业装置
CN112676281A (zh) * 2020-12-14 2021-04-20 马鞍山章鱼心网络科技服务有限公司 行驱式管道内壁双向清洁装置
CN115025939A (zh) * 2022-06-16 2022-09-09 包头市军达管业有限公司 一种涂塑钢管涂刷装置
CN116371840A (zh) * 2023-05-26 2023-07-04 山西太康高科节能股份有限公司 一种制冷管的清理装置
CN116371840B (zh) * 2023-05-26 2023-07-28 山西太康高科节能股份有限公司 一种制冷管的清理装置

Also Published As

Publication number Publication date
KR19990037364A (ko) 1999-05-25
EP0911452A3 (fr) 2000-03-01

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