EP0348799A1 - Appareil de guidage pour spirales de nettoyage de tuyaux - Google Patents

Appareil de guidage pour spirales de nettoyage de tuyaux Download PDF

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Publication number
EP0348799A1
EP0348799A1 EP89111220A EP89111220A EP0348799A1 EP 0348799 A1 EP0348799 A1 EP 0348799A1 EP 89111220 A EP89111220 A EP 89111220A EP 89111220 A EP89111220 A EP 89111220A EP 0348799 A1 EP0348799 A1 EP 0348799A1
Authority
EP
European Patent Office
Prior art keywords
helix
engagement
guide device
guide
axis
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.)
Ceased
Application number
EP89111220A
Other languages
German (de)
English (en)
Inventor
Reiner Seitz
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.)
Rowo Rohr und Kanal Reinigungsgerate GmbH
Original Assignee
Rowo Rohr und Kanal Reinigungsgerate GmbH
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
Application filed by Rowo Rohr und Kanal Reinigungsgerate GmbH filed Critical Rowo Rohr und Kanal Reinigungsgerate GmbH
Publication of EP0348799A1 publication Critical patent/EP0348799A1/fr
Ceased 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
    • 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

Definitions

  • the invention relates to a guide device for pipe cleaning spirals, which consist of a steel wire coil wound with gaps and are rotatable about its axis by means of a drive machine which is separate from the guide device, with a guide housing with an inlet opening at one end and an outlet opening for the spiral at the other end, with a plurality of engagement jaws arranged in the guide housing and positively engaging in the spaces between the individual windings of the spiral, which are distributed over the circumference of the spiral axis (AA) and are arranged axially offset according to the pitch of the spiral.
  • AA spiral axis
  • cleaning spirals Such cleaning devices are referred to in specialist circles as “cleaning spirals", although - strictly speaking - they are so-called coils which are formed by winding a steel wire along a helix.
  • EP-PS 0 061 003 Devices for guiding spirals are known from EP-PS 0 061 003. These are hoses, drums or adapter magazines that only serve to hold the coils, but do not exert any feed forces on these coils.
  • This weight can only be controlled by the operator with great physical exertion or can no longer be controlled, so that the use of the pipe cleaning machines in question is increasingly problematic with downpipes having a large vertical length.
  • the cleaning spirals are withdrawn from the pipeline after work in a wet and / or dirty state, so that they are difficult to grasp.
  • the feed is effected by a jaw chuck and the size of the feed is controlled by a manually operated brake, the handling of which requires the operator's full attention.
  • the axial offset of the engaging elements also corresponds to only a fraction of the spiral pitch, because the engaging elements have to be arranged on a helix in order to avoid jamming. With three engagement elements, the axial offset corresponds to just a third of the spiral pitch, i.e. a few millimeters.
  • the engaging elements thus form an absolute barrier to the passage of a clutch.
  • the invention is therefore based on the object of improving the guide device described at the outset in such a way that it can also be used in connection with pipe cleaning machines in which spirals are assembled from sections by means of couplings for reasons of transport and weight.
  • the object is achieved according to the invention in that the axial distance between two successive engagement jaws is greater than half of the distance "D" between the ends of two adjacent spiral sections caused by two interconnected coupling elements.
  • the axial distance between two successive engagement jaws is preferably greater than said distance "D".
  • a very particularly advantageous embodiment of the invention is characterized in that at least one engagement jaw lying on one side of the helix axis with its surfaces engaging in the helix on the at least one intermediate space extending in the direction of the helix axis between at least two on the other side of the helix axis arranged engagement jaws is aligned.
  • the guide housing with the engagement jaws acts on the one hand like a nut with respect to the steel wire helix, which in turn can be understood as a kind of "screw". The operator does not have to put in any physical effort.
  • the mother does not act like a lock on the couplings. Due to the arrangement of the engagement jaws according to the invention, the helix axis can follow a serpentine line. This is necessary at the moment when a coupling connecting two partial lengths of the helix, which has a cylindrical outer surface, runs through the guide housing. As soon as the coupling runs onto one of the engagement jaws, it can move laterally without the positive connection of the helix to the other engagement jaws being canceled. The helix axis is not laterally displaced on the other engagement jaws. As a result, the positive engagement - seen as a whole - is retained, i.e. a so-called "slipping" of the helix through the guide housing is excluded.
  • the axial distance of the engagement jaws, based on the housing or helix axis, is selected to be so large that the coupling can never touch two engagement jaws at the same time.
  • the engagement jaws are designed in a cross section parallel to the helix axis “T-”, the flange of the “T” serving as a fastening flange and the web carrying the engagement surfaces for the helix.
  • the engagement jaws have engagement surfaces that are axially and radially separated from one another in pairs for engagement in helix with different diameters and different winding spacings. In this way it is possible to use the same guide device for such different helices, for example for those with a diameter of 22 mm and 32 mm.
  • the engagement surfaces run at an angle to the helix axis that corresponds to the pitch angle of the helix at its point of contact with the respective engagement surface.
  • the engagement surfaces have a shape that is complementary to the helix surface at their point of contact, i.e. the engagement jaws act like a sector made from a nut.
  • the guide housing has a cuboid chamber with a base, side walls and a cover, and if the engagement jaws are arranged on the base and on the cover. If the cover is then removably or pivotably attached to the guide housing, the positive engagement can be canceled at least for the engagement jaw located on the cover, and the coil can then jump over the engagement jaws attached to the floor. This decouples the ratio of feed to speed of the helix.
  • the removable or swiveling cover is also used for maintenance work, including the introduction of lubricants.
  • the engagement jaws are wearing parts, so that they have to be replaced at longer intervals.
  • interchangeable guide strips made of a wear-resistant material are expediently arranged on the side walls of the guide housing. The spiral of all the measures is thus guided within a cuboid space.
  • the guide housing has pipe sockets on both end faces of the chamber, one of which is designed as a 90 degree bend. If an interchangeable extension piece is then inserted into at least the downward end of the pipe socket designed as a bend, the guide device can be inserted into the mouth of the pipe to be cleaned itself, which results in optimal guidance of the helix during feed and retraction.
  • a special frame for the guide device can be dispensed with in this way.
  • FIG. 1 shows a guide housing 1 which has a cuboid chamber 2 which is delimited by a base 3, two side walls 4 and 5 and a cover 6.
  • the chamber 2 is open at the end faces and continues there in the form of pipe sockets 7 and 8, in which there is an inlet opening 9 and an outlet opening 10.
  • This choice of terms was chosen with regard to the introduction of the pipe cleaning spiral 11 according to FIG. 2. With regard to a withdrawal of the spiral 11, the reference numerals 9 and 10 can of course also be interchanged.
  • the pipe socket 8 is designed as a 90-degree elbow 12, so that the axis of the outlet opening 10 is aligned vertically.
  • coupling elements 13 and 14 which in the present case are designed as threads, and into which interchangeable extension pieces 15 and 16 are screwed.
  • the axis of the extension piece 15 extends horizontally and is essentially aligned with the drive machine, not shown here, for the spiral 11 according to FIG. 2.
  • the vertical axis of the extension piece 16 is inserted or inserted into the upper end of a pipe 17 to be cleaned, so that this pipe also represents the (only) holder for the guide housing 1.
  • Two engagement jaws 18 and 19 are fastened to the floor, while a further engagement jaw 20 is fastened to the cover 6.
  • the attachment is done interchangeably by countersunk screws not specified.
  • the arrangement of the three engagement jaws 18, 19 and 20 shown is such that the two jaws 18 and 19 lying one behind the other in the direction of the helix axis are arranged on one side (below) of the helix axis AA, while the third engagement jaw 20 "is in a gap "is arranged centrally on the opposite side (above) of the helix axis AA.
  • the engagement jaws 18, 19 and 20 are T-shaped in a cutting plane running parallel to the helix axis AA, and have a flange 21 with which they are fastened on the base 3 or on the cover 6.
  • the web 22 carries at its free end engagement surfaces 23 for the helix 11.
  • the engagement jaws 18, 19 and 20 have axially and mutually spaced engagement surfaces 23 and 24 for engagement in helix 11 with different diameters and different winding spacings.
  • the guide device can be used universally.
  • connection element 48 for attaching or plugging onto a trestle or tripod is also attached to the guide housing.
  • Two connecting elements 49 and 50 are used to connect to a water pipe, for example to be able to clean a heavily soiled spiral when withdrawing. The rinse water then runs through the pipe 17.
  • Axial parallel longitudinal ribs 51 increase the service life of the device with regard to premature wear due to the friction of the spiral on the guide housing (see also FIG. 4).
  • a coupling 25 with two coupling parts 26 and 27 is shown in FIG.
  • the coupling part 27 has a T-shaped head piece 28 which can be inserted into a complementary, diametrical groove of the coupling part 26, a releasable locking taking place in such a way that the outer surfaces of the coupling parts 26 and 27 lie in a common cylindrical surface.
  • sections 29 and 30 of a helix 11 or pipe cleaning spiral are connected. These sections are between 4 and 5 m long.
  • the coils are wound at a distance, ie the individual windings enclose intermediate spaces 31 into which the engagement jaws 18, 19 and 20 engage with their engagement surfaces 23 or 24 in a form-fitting manner.
  • the ends of two adjacent spiral sections 29 and 30 are at a distance "D" from one another which is filled by the main parts of the two coupling elements 26 and 27.
  • the cone-shaped extensions 26a and 27a are not taken into account here, since they are set back far enough in the radius around the wire diameter.
  • the distance "D” is decisive for the axial distance of the engagement jaws 18, 19 and 20.
  • the assembled helix according to FIG. 1 can be inserted into the inlet opening 9 from the left with a suitable direction of rotation and can be guided over the engagement jaws 18, 19 and 20 with a corresponding rotation.
  • the clutch 25 runs onto the engagement jaw 18, it makes a corresponding evasive movement upwards.
  • the cover 6 By opening the cover 6, the insertion of the helix can be made considerably easier.
  • the coupling 25 makes an evasive movement downwards when it comes into contact with the engagement jaw 20, and the play with the evasion upwards is repeated on the engagement jaw 19.
  • the helix axis AA runs through different serpentine paths as it passes through the chamber 2, but this is in no way a hindrance to the axial advancement of the helix 11 in both directions of displacement.
  • FIG. 3 also shows that the pairs of engagement surfaces 23 and 24 run at an angle to the helix axis A-A which is different from 90 degrees, and this angle corresponds to the pitch angle of the helix at the point of contact with the respective engagement surface.
  • the engagement surfaces 23 and 24 are curved in an arcuate manner and are complementary to the respectively immediately adjacent surface parts of the helix 11, so that the engagement jaws or their webs 22 represent sector-like cutouts from one nut each.
  • the longitudinal ribs 51 are not present, and instead replaceable guide strips 33 and 34 made of a wear-resistant material are arranged on the inner surfaces of the side walls 4 and 5.
  • the guide strips prevent lateral deflection of the spiral 11 and are provided with inclined planes 35 at both ends in order to prevent the coupling 25 from getting caught.
  • the guide strips 33 and 34 are also fastened by countersunk screws (not specified).
  • the nut 41 is supported on two projections 43 of the cover 6, between which there is a recess 44 reaching to the edge for pivoting in the eyebolt 39.
  • the cover 6 can be pressed down firmly when the toggle 42 is tightened.
  • stiffness can be removed at any time (e.g. by oiling or greasing), the operating state can be observed and, if necessary, a coupling 25 can be assembled or disassembled.
  • FIG. 5 in which the connecting elements 49 and 50 are omitted, explains in particular the good accessibility of the chamber 2.
  • Pipe cleaning tools can be used with the outermost or lowermost end of the spiral or helix connect, using the same coupling parts as shown in Figure 2.
  • Possible tools are, for example: return drills, spiral sawtooth cutting heads, cross blade drills, root cutters, chain centrifugal heads, club drills, funnel drills, shovel drills and Widia drilling heads.
  • Pipes with a so-called plastic core can also be used as pipe cleaning spirals.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Cleaning In General (AREA)
EP89111220A 1988-06-28 1989-06-20 Appareil de guidage pour spirales de nettoyage de tuyaux Ceased EP0348799A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3821667A DE3821667A1 (de) 1988-06-28 1988-06-28 Vorrichtung zum fuehren von rohrreinigungs-spiralen
DE3821667 1988-06-28

Publications (1)

Publication Number Publication Date
EP0348799A1 true EP0348799A1 (fr) 1990-01-03

Family

ID=6357359

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89111220A Ceased EP0348799A1 (fr) 1988-06-28 1989-06-20 Appareil de guidage pour spirales de nettoyage de tuyaux

Country Status (5)

Country Link
US (1) US4995132A (fr)
EP (1) EP0348799A1 (fr)
JP (1) JPH02107385A (fr)
DE (1) DE3821667A1 (fr)
DK (1) DK317689A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007008885A2 (fr) * 2005-07-12 2007-01-18 Emerson Electric Co. Dispositif de commande d'avance pour outils de plomberie
US7478451B2 (en) 2004-03-04 2009-01-20 Emerson Electric Co. Feed control device for plumbing tools
WO2018178032A1 (fr) * 2017-03-30 2018-10-04 Lehmann Gmbh & Co. Kg Dispositif d'avance et appareil de nettoyage

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180126428A1 (en) * 2016-11-07 2018-05-10 Sdy International Co., Ltd. Pipe Cleaning Apparatus

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2600707A (en) * 1949-04-15 1952-06-17 James E Turnbaugh Flexible rotary reaming apparatus
US3246354A (en) * 1964-07-23 1966-04-19 Gen Wire Spring Company Sewer augering machine with automatic feed mechanism and interchangeable drum means
DE2416310A1 (de) * 1973-11-30 1975-06-05 Marco Products Co Rohrreinigungsmaschine
GB2095786A (en) * 1981-03-26 1982-10-06 Augerscope Inc Snake feeding mechanism

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3329044A (en) * 1965-10-04 1967-07-04 Singer Louis Cable handling device
DE2244206C2 (de) * 1972-09-08 1983-11-10 General Wire Spring Co., Pittsburgh, Pa. Rohrreinigervorrichtung
GB1409301A (en) * 1972-09-18 1975-10-08 Gen Wire Spring Co Plumbers snake apparatus
DE3109876A1 (de) * 1981-03-14 1982-09-30 Rothenberger GmbH & Co Werkzeuge-Maschinen KG, 6000 Frankfurt Rohrreinigungsmaschine mit einem behaelter fuer die aufnahme von reinigungsspiralen unterschiedlicher durchmesser
US4580306A (en) * 1984-01-19 1986-04-08 Lawrence Irwin F Waste line cleanout apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2600707A (en) * 1949-04-15 1952-06-17 James E Turnbaugh Flexible rotary reaming apparatus
US3246354A (en) * 1964-07-23 1966-04-19 Gen Wire Spring Company Sewer augering machine with automatic feed mechanism and interchangeable drum means
DE2416310A1 (de) * 1973-11-30 1975-06-05 Marco Products Co Rohrreinigungsmaschine
GB2095786A (en) * 1981-03-26 1982-10-06 Augerscope Inc Snake feeding mechanism

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7478451B2 (en) 2004-03-04 2009-01-20 Emerson Electric Co. Feed control device for plumbing tools
US7685669B2 (en) 2004-03-04 2010-03-30 Emerson Electric Co. Feed control device for plumbing tools
WO2007008885A2 (fr) * 2005-07-12 2007-01-18 Emerson Electric Co. Dispositif de commande d'avance pour outils de plomberie
WO2007008885A3 (fr) * 2005-07-12 2007-04-05 Emerson Electric Co Dispositif de commande d'avance pour outils de plomberie
JP2009501288A (ja) * 2005-07-12 2009-01-15 エマーソン エレクトリック カンパニー 配管用ツールの供給制御装置
CN101238256B (zh) * 2005-07-12 2013-05-29 艾默生电气公司 管路工具的进给控制器
WO2018178032A1 (fr) * 2017-03-30 2018-10-04 Lehmann Gmbh & Co. Kg Dispositif d'avance et appareil de nettoyage

Also Published As

Publication number Publication date
DK317689A (da) 1989-12-29
JPH02107385A (ja) 1990-04-19
DK317689D0 (da) 1989-06-27
US4995132A (en) 1991-02-26
DE3821667A1 (de) 1990-01-18

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