EP3059022B1 - Cleaning device for cleaning pipelines - Google Patents

Cleaning device for cleaning pipelines Download PDF

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Publication number
EP3059022B1
EP3059022B1 EP16000250.7A EP16000250A EP3059022B1 EP 3059022 B1 EP3059022 B1 EP 3059022B1 EP 16000250 A EP16000250 A EP 16000250A EP 3059022 B1 EP3059022 B1 EP 3059022B1
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EP
European Patent Office
Prior art keywords
cleaning device
spring shaft
handle
carrier
roller
Prior art date
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Application number
EP16000250.7A
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German (de)
French (fr)
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EP3059022A1 (en
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.)
Rems GmbH and Co KG
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Rems GmbH and Co KG
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Publication date
Application filed by Rems GmbH and Co KG filed Critical Rems GmbH and Co KG
Publication of EP3059022A1 publication Critical patent/EP3059022A1/en
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Publication of EP3059022B1 publication Critical patent/EP3059022B1/en
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Classifications

    • 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
    • B08B9/045—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 the cleaning devices being rotated while moved, e.g. flexible rotating shaft or "snake"

Definitions

  • the invention relates to a cleaning device for cleaning pipelines according to the preamble of claim 1.
  • Such a cleaning device ( DE 10 2008 015 532 B4 ) has a handle that surrounds the spring shaft and can be moved in the longitudinal direction of the spring shaft.
  • the adjustable roller is adjusted with the handle in order to be able to move the spring shaft in both feed directions.
  • the handle tube is provided with a toothed rack into which a toothed sector engages. If the handle is moved along the spring shaft, the toothed sector is rotated via the toothed rack, whereby the adjustable roller is also rotated accordingly.
  • Such an adjusting device for the roller is structurally complex and requires a correspondingly large installation space. Since the handle surrounds the spring shaft, it is located at a point that is difficult to grip for the user, which makes working with the cleaning device more difficult.
  • the invention is based on the object of designing the generic cleaning device in such a way that, with a structurally simple and compact design, the adjustment of the roller is easily possible.
  • the handle extends transversely to the spring shaft.
  • the handle is in a convenient position for the user, who can therefore work with the cleaning device for a long time without getting tired. Since the handle is non-rotatably connected to the support that can be rotated in the housing opening, the roller can be adjusted in the desired direction by simply rotating the handle around its axis. This training results in a compact design of the housing and thus of the entire cleaning device. The rotation of the handle enables the direction of advance of the spring shaft to be changed very quickly.
  • the carrier is advantageously fork-shaped.
  • the carrier has two legs in which the ends of an axle are attached on which the roller is freely rotatably mounted. It is located between the legs of the wearer to save space.
  • the axle can be securely fastened in the two legs.
  • the carrier can also be designed in such a way that it has a recess in which the roller is accommodated. The axis which carries the roller extends in this case through this recess. Such a design also results in a very compact design, since even with such a carrier design the roller is essentially accommodated within the carrier and only protrudes over it so far that the roller can come into contact with the spring shaft.
  • the carrier is pressure-loaded in the direction of the spring shaft.
  • the carrier is under the force of at least one compression spring. It represents a structurally simple component that is inexpensive and easy to install.
  • the compression spring is formed by a disk spring assembly with which high compressive forces can be generated with a small structural volume.
  • At least one tensioning element is used to tension the compression spring.
  • a compact design is advantageous if the compression spring is housed within the tensioning element.
  • the compression spring is also protected from damage and / or contamination.
  • the compression spring rests on the carrier with a pressure washer in between.
  • the compressive force can thus be transmitted evenly to the carrier.
  • the tensioning element is at a small distance from the thrust washer, so that a reliable pressure force generation is guaranteed.
  • the tensioning element can also be designed in such a way that it comes to rest on the thrust washer when an intended maximum compressive stress is set. In this way, it can be achieved that an excessive contact pressure of the roller on the spring shaft is avoided.
  • the handle is penetrated by an axis through the clamping element.
  • the carrier for the third roller, the tensioning element and the handle preferably have a common one that runs transversely, preferably perpendicularly, to the spring shaft Axis.
  • Such a design has the advantage that the carrier, the tensioning element and the handle can be easily mounted.
  • the spring shaft which extends transversely to this, does not interfere with the assembly of these components.
  • the axis of the handle advantageously passes through the compression spring. This further contributes to the compact design of the cleaning device.
  • the use of the cleaning device by the user is advantageously facilitated if the rotary movement of the handle is limited in both directions by at least one stop in each case.
  • the role can thus be adjusted very easily into the two maximum adjustment positions. Between these maximum adjustment positions, the user of the cleaning device can set any desired intermediate position of the roller by turning the handle accordingly. This has an influence on the feed speed of the spring shaft.
  • the support of the spring shaft is formed by two further, fixed rollers which are opposite the adjustable roller.
  • the spring shaft is thus passed between three rollers which each bear against the spring shaft.
  • the three rollers advantageously have an angular distance of about 120 ° from one another.
  • the positionally fixed, freely rotatable rollers reliably support the spring shaft during its advance movement, with only low friction advantageously occurring.
  • the three rollers are preferably located approximately at the same height in the area of a through opening in the housing which connects a receiving space for a coupling piece of the drum with an opposite recess in the housing.
  • the three rollers resting on the spring shaft in this area are accommodated in the housing in a space-saving manner, with the spring shaft ensuring optimum support and optimum feed due to the rollers, which are approximately at the same height in relation to the longitudinal direction of the spring shaft.
  • the axes of rotation of the further, freely rotatable rollers are advantageously arranged inclined relative to the spring shaft both in the horizontal and in the vertical.
  • the axes of rotation are, based on the spring shaft, mirror-symmetrical to the spring shaft, viewed perpendicular to the spring shaft. Such a design results in a reliable advance of the spring shaft in both of its axial directions.
  • the cleaning device is used to clean pipes, for example to remove blockages in the pipes or limescale deposits.
  • the cleaning device is a hand-held device that is driven by a motor drive (not shown). Such a drive is advantageously a hand drill to which the cleaning device can be connected by the user.
  • the cleaning device has a rotatable drum 1 which receives a spring shaft 2.
  • the spring shaft 2 is also referred to as a cleaning spiral, which is pushed into the pipe to be cleaned in a manner still to be described.
  • the spring shaft 2 is wound up within the drum 1 in a known manner.
  • the drum 1 has a cylinder part 3 on which a cover 4 is placed on the front side and is detachably connected to it.
  • the cylinder part is thickened so that the fastening screws 5 are adequately held. These thickened areas also reinforce the drum 1.
  • the heads of the fastening screws 5 are countersunk in the cover 4.
  • the cover 4 has a circumferential narrow edge 6 which rests on the end face of the cylinder part 3. So that the cover 4 can be aligned easily with respect to the drum 1 or its cylinder part 3, it has a circumferential annular wall 7 with which the cover 6 rests against the cylindrical inner wall 8 of the cylinder part.
  • the circumferential edge 6 forms a radial flange which adjoins the annular wall 7 perpendicularly.
  • the middle area of the cover 4 is designed as a cone 9 which tapers in the direction of the interior of the drum 1.
  • the cone 9 is provided with a retaining bush 10 in which a drive pin 11 is fastened centrally. It protrudes over the retaining sleeve 10 and protrudes into one through the cone 9 formed recess 12 of the cover 4.
  • the drive pin 11 advantageously does not protrude beyond the end face of the drum 1.
  • the protruding part of the drive pin 11 is taken up by the chuck of the drill. With the clamped drive pin 11, the entire drum 1 is rotated about its axis.
  • the cylinder part 3 of the drum 1 merges into a conical part 13, which tapers in the same direction as the cone 9 of the cover 4 having.
  • a neck 16 of a bearing bush 17 protrudes into the through opening 15.
  • the neck 16 protrudes inwardly beyond the end piece 14 of the drum 1.
  • a nut 18 with which the bearing bush 17 is firmly connected to the drum 1 is screwed onto the protruding end of the neck.
  • the end piece 14 has a central recess 19 on its outside, into which the bearing bush 17 protrudes. It rests on the bottom and on the side wall of the recess 19 and is thereby aligned with respect to the drum 1.
  • the feed-through opening 15 and the opposite drive pin 11 are aligned with one another and in the axis of the drum 1.
  • the nut 18 pulls the bearing bush 17 firmly against the bottom of the recess 19.
  • the bearing bush 17 protrudes into a receiving space 20 of a housing 21 ( Fig. 3 ).
  • the receiving space 20 has an inner wall 22 which is formed, for example, from three inner wall sections 22a to 22c with different diameters.
  • the inner wall section 22a which adjoins a floor 23 of the receiving space 20, has the smallest diameter.
  • the middle inner wall section 22b has a larger diameter, which in turn is smaller than the diameter of the inner wall section 22c, which adjoins the free end face 24 of the housing 21.
  • the inner wall sections 22a to 22c each merge into one another via a circumferential radial shoulder 25, 26.
  • the radial shoulder 25 at the transition between the two inner wall sections 22a, 22b serves as a system for a pivot bearing 27 ( Fig. 1 ), which is an example of a ball bearing.
  • the axial width of the pivot bearing 27 advantageously corresponds to the axial width of the central inner wall section 22b.
  • the rotary bearing 27 is axially secured on the bearing bush 17 between a securing ring 30 and a circumferential radial shoulder 31.
  • the locking ring 30 is located approximately at the level of the radial shoulder 25, while the radial shoulder 31 of the bearing bush 17 is located approximately at the level of the locking ring 29 of the housing 21.
  • the bearing bush 17 is at a small distance from the floor 23 of the receiving space 20, so that the drum 1 can rotate unhindered about its axis when it is rotatably driven by the drill.
  • a through opening 32 opens into the bottom 23 of the receiving space 20 ( Fig. 4 ), through which the spring shaft 2 runs at a distance from the wall of the through opening.
  • the spring shaft 2 is also at a radial distance from the wall of the bearing bush 17, so that its advance movement is not impaired.
  • the housing 21 On its side facing away from the receiving space 20, the housing 21 has an end-face recess 33 which widens in the direction of the end face 34 of the housing 21 and is connected to the receiving space 20 through the through-opening 32.
  • the spring shaft 2 protrudes centrally through the recess 33. Due to the conical design of the recess 33, the spring shaft 2 can move transversely when the cleaning device is used perform without it coming into contact with the wall of the recess 33.
  • the housing 21 is provided with a bearing opening 35 which is located radially to the through opening 32 and in which a carrier 36 is rotatably mounted.
  • the carrier 36 is advantageously fork-shaped and has two legs 37, 38 lying parallel to one another, in which an axis 39 is attached.
  • a roller 40 is freely rotatable on it and protrudes over the support legs 37, 38 and protrudes into the through opening 32 in such a way that it can be brought to rest on the spring shaft 2.
  • the housing 21 is provided with a protruding neck 41, which is advantageously formed in one piece with the housing 21.
  • a cylindrical extension 42 of an adjusting wheel 43 protrudes into the cylindrical neck 41.
  • the extension 42 is screwed into the neck 41, which protrudes from a rotary handle 44 which is located in the area outside the neck 41.
  • the projection 42 rests flat on the carrier 36 with a pressure disk 45 interposed.
  • At least one compression spring 46 is accommodated in the extension 42 and loads the carrier 36 in the direction of the spring shaft 2 via the pressure disk 45.
  • the compression spring 46 is advantageously formed by a spring assembly, in particular a disc spring assembly, which is supported with one end on the pressure disk 45 and with the other end on an annular shoulder 47 which is provided in a receiving space 48 of the extension 42 that accommodates the compression spring 46.
  • the extension 42 is at a small distance from the pressure disk 45, so that a reliable application of pressure to the carrier 36 is guaranteed.
  • the disk spring assembly 46 can also rest directly on the carrier 36, so that a pressure washer can be omitted.
  • the pressure force is set with which the roller 40 rests on the spring shaft 2 via the compression spring 46. Since the extension 42 is screwed into the neck 41, the spring force can be continuously adjusted and thus adapted to the respective circumstances.
  • the carrier 36 can be rotated about its axis by means of a handle 49.
  • the handle 49 extends perpendicular to the spring shaft 2.
  • the handle 49 has an axis 50 which passes through the rotary handle 44, the compression spring 46 and the pressure disk 45 and is fastened in the carrier 36. If the handle 49 is rotated about its axis, the carrier 36 is correspondingly rotated about its axis.
  • the roller 40 is shown in FIG Figs. 1 to 5 from above on the spring shaft 2.
  • the cleaning device has two further rollers 51, 52 which are freely rotatable about their axes. These rollers 51, 52 each sit on an axle 53, 54 which is fastened in the housing 21 in such a way that the rollers 51, 52 protrude into the through opening 32 and lie against the spring shaft 2. How out Fig. 3 results, the rollers 40, 51, 52, viewed in the axial direction of the through opening 32, lie in such a way that their areas of contact with the spring shaft 2 are at an angular distance of approximately 120 °.
  • the axes 53, 54 are fastened in the housing 21 in such a way that the rollers 51, 52 seated on them protrude into the through opening 32.
  • the axes of rotation 55, 56 ( Fig. 5 ) of the rollers 51, 52 are, viewed perpendicular to the spring shaft 2, on both sides of the spring shaft 2 at an acute angle to each other and to the longitudinal axis 58 of the spring shaft 2. Seen from above on the spring shaft 2 ( Fig. 5 ) the axes of rotation 55, 56 intersect one another in the longitudinal axis 58 of the spring shaft 2. In addition, the axes of rotation 55, 56 are related inclined on the axis 58 of the spring shaft 2 in the area of the through opening 32 ( Figures 3 to 5 ).
  • the two rollers 51, 52 are, seen in plan view of the spring shaft 2 ( Fig. 5 ), mirror-symmetrical to one another, based on the longitudinal axis 58 of the spring shaft 2.
  • the axis of rotation 57 of the roller 40 can be set in different positions relative to the spring shaft 2 by rotating the carrier 36. By rotating the carrier 36 about its axis, the axis of rotation 57 is adjusted to different inclined positions with respect to the axis of the spring shaft 2, in a plan view of the spring shaft 2 according to FIG Fig. 5 seen. In this top view, the axis of rotation 57 of the roller 40 forms an angle ⁇ with the axis 58 of the spring shaft 2. As a result, an axial force is exerted on the spring shaft 2, which means that the spring shaft 2 is extended when the drum 1 is driven. Depending on the position of the roller 40, the spring shaft 2 is pushed forwards or backwards.
  • the carrier 36 can be rotated about its axis in such a way that the axis of rotation 57 of the roller 40 with the axis 58 of the spring shaft 2 encloses the angle ⁇ in the other direction.
  • the roller 40 adjusted in this way ensures that the spring shaft 2 is moved back into the drum with the drum 1 rotating in the same direction.
  • a reversal of the direction of rotation of the drilling machine or the drum 1 is therefore not required to retract and extend the spring shaft 2.
  • the user of the cleaning device only has to turn the handle 49 about its axis in such a way that the axis of rotation 57 of the roller 40 is either in the one (dash-dotted line in Fig. 5 ) or the other direction (dotted line in Fig. 5 ) runs relative to the axis 58 of the spring shaft 2, viewed from above on the spring shaft ( Fig. 5 ).
  • the roller can be pivoted between the two end positions without any problems. If the roller 40 is pivoted into a central position in which its axis of rotation 57 is parallel to the axis 58 of the spring shaft 2, the spring shaft 2 stops and is not moved further axially. This allows the user to react very quickly if the resistance in the pipeline to be cleaned should become too high. As a result of the simple rotary movement of the handle 49, the switchover between forward and backward movement of the spring shaft 2 can also be carried out within a very short time, so that even stubborn deposits in a pipe can be reliably removed.
  • the handle 49 lies transversely to the spring shaft 2, the housing 21 can be brought close to the pipe to be cleaned during the cleaning process without the adjustment of the roller 40 being impaired.
  • the handle 49 serves not only to reverse the axial movement of the spring shaft 2, but also to hold the cleaning device. In particular, this enables fatigue-free work with the cleaning device.
  • the pressing force with which the roller 40 rests on the spring shaft 2 can be adjusted with the rotary wheel 44.
  • the pressure force of the compression spring 46 can be adjusted with the rotary wheel 44.
  • the carrier 36 and thus the adjustable roller 40 can be rotated, for example, by approximately ⁇ 20 ° from a central position in which the axis of rotation 57 is parallel to the longitudinal axis 58 of the spring shaft 2.
  • the two end positions can be defined by stops so that the user can easily get into these two end positions. Since intermediate positions of the roller 40 can also be set with the handle 49, the feed speed of the spring shaft 2 can be continuously adjusted in both directions.
  • the handle 49 lies with a cone piece 59 ( Fig. 4 ) on the face of the rotary wheel 44. Because the cone piece 59 has a much smaller diameter than the handle 49, the handle 49 can easily be rotated relative to the rotary wheel 44.
  • the housing 21 Since the handle 49 runs transversely with respect to the spring shaft 2 in the area of the through opening 32 or the recess 33, the housing 21 has only a short length in the axial direction.
  • the three rollers 40, 51, 52 can be accommodated in the small housing 21 without any problems. Since the rollers 51, 52 are arranged in a non-adjustable manner in the housing 21, no adjustment devices are required for them either, which contributes to the compact shape of the housing 21.
  • the handle 49 is easy to assemble since it is inserted into the housing 21 transversely to the spring shaft 2.
  • the handle 49 and the spring shaft 2 can be assembled and disassembled independently of one another. If, for example, the spring shaft 2 is damaged, it can simply be replaced without the handle 49 having to be dismantled or dismantled.
  • the handle 49 can also be easily exchanged if necessary.
  • the spring shaft 2 is not affected by the replacement of the handle 49.
  • the diameter of the rotary wheel 44 is only slightly smaller than the outer diameter of the housing 21.
  • the neck 41 has a smaller diameter than the rotary wheel 44 and the housing 21, which contributes to the compact design of the device.
  • the handle 49 is also designed in such a way that, viewed in its axial direction, it does not protrude over the rotary wheel 44.
  • the handle 49 is sufficiently long that it can be comfortably grasped by the hand of the user and rotated about its axis in order to adjust the roller 40.
  • the handle 49 can be made of any suitable material.
  • the handle 49 is preferably made of a suitable plastic.
  • the axle 50 consists of a metallic material and is embedded in the handle 49 at its end facing away from the roller 40.
  • the spring shaft 2 At its front end in the feed direction, the spring shaft 2 carries in a known manner a corresponding cleaning tool with which the deposits in the pipe to be cleaned can be removed.
  • the cleaning device is characterized by its simple structural design.
  • the conversion or adjustment of the roller 40 is possible in a simple manner because it is mounted in the carrier 36, which is only rotated about its axis by means of the handle 49.
  • the rotary movement of the handle 49 is converted directly into the rotary movement of the carrier 36, so that complex intermediate transmission elements are not required, which would increase the installation space and thus the size of the housing 21.

Description

Die Erfindung betrifft ein Reinigungsgerät zur Reinigung von Rohrleitungen nach dem Oberbegriff des Anspruches 1.The invention relates to a cleaning device for cleaning pipelines according to the preamble of claim 1.

Ein solches Reinigungsgerät ( DE 10 2008 015 532 B4 ) hat einen Griff, der die Federwelle umschließt und in Längsrichtung der Federwelle verschiebbar ist. Mit dem Griff wird die verstellbare Rolle verstellt, um die Federwelle in beiden Vorschubrichtungen verschieben zu können. Um die Verschiebebewegung des Griffes in eine Verstellbewegung der Rolle umsetzen zu können, ist das Griffrohr mit einer Zahnstange versehen, in die ein Zahnsektor eingreift. Wird der Griff längs der Federwelle verschoben, wird über die Zahnstange der Zahnsektor gedreht, wodurch auch die verstellbare Rolle entsprechend gedreht wird.Such a cleaning device ( DE 10 2008 015 532 B4 ) has a handle that surrounds the spring shaft and can be moved in the longitudinal direction of the spring shaft. The adjustable roller is adjusted with the handle in order to be able to move the spring shaft in both feed directions. In order to be able to convert the displacement movement of the handle into an adjustment movement of the roller, the handle tube is provided with a toothed rack into which a toothed sector engages. If the handle is moved along the spring shaft, the toothed sector is rotated via the toothed rack, whereby the adjustable roller is also rotated accordingly.

Eine solche Verstelleinrichtung für die Rolle ist konstruktiv aufwändig und benötigt einen entsprechend großen Einbauraum. Da der Griff die Federwelle umgibt, befindet er sich an einer griffungünstigen Stelle für den Benutzer, wodurch das Arbeiten mit dem Reinigungsgerät erschwert wird.Such an adjusting device for the roller is structurally complex and requires a correspondingly large installation space. Since the handle surrounds the spring shaft, it is located at a point that is difficult to grip for the user, which makes working with the cleaning device more difficult.

Weitere Reinigungsgeräte sind aus US 3206782 A und DE 1807313 A1 bekannt.Other cleaning devices are off US 3206782 A and DE 1807313 A1 famous.

Der Erfindung liegt die Aufgabe zugrunde, das gattungsgemäße Reinigungsgerät so auszubilden, dass bei konstruktiv einfacher und kompakter Ausbildung die Verstellung der Rolle einfach möglich ist.The invention is based on the object of designing the generic cleaning device in such a way that, with a structurally simple and compact design, the adjustment of the roller is easily possible.

Diese Aufgabe wird beim gattungsgemäßen Reinigungsgerät erfindungsgemäß mit den kennzeichnenden Merkmalen des Anspruches 1 gelöst.In the cleaning device of the generic type, this object is achieved according to the invention with the characterizing features of claim 1.

Beim erfindungsgemäßen Reinigungsgerät erstreckt sich der Griff quer zur Federwelle. Der Griff befindet sich dadurch in einer griffgünstigen Position für den Benutzer, der darum ermüdungsfrei auch längere Zeit mit dem Reinigungsgerät arbeiten kann. Da der Griff mit dem in der Gehäuseöffnung drehbaren Träger drehfest verbunden ist, lässt sich die Rolle durch eine einfache Drehbewegung des Griffes um seine Achse in die gewünschte Richtung verstellen. Diese Ausbildung ergibt eine kompakte Bauweise des Gehäuses und damit des gesamten Reinigungsgerätes. Die Drehung des Griffes ermöglicht eine sehr schnelle Umschaltung der Vorschubrichtung der Federwelle.In the cleaning device according to the invention, the handle extends transversely to the spring shaft. As a result, the handle is in a convenient position for the user, who can therefore work with the cleaning device for a long time without getting tired. Since the handle is non-rotatably connected to the support that can be rotated in the housing opening, the roller can be adjusted in the desired direction by simply rotating the handle around its axis. This training results in a compact design of the housing and thus of the entire cleaning device. The rotation of the handle enables the direction of advance of the spring shaft to be changed very quickly.

Der Träger ist vorteilhaft gabelförmig ausgebildet.The carrier is advantageously fork-shaped.

Der Träger weist bei einer bevorzugten Ausführungsform zwei Schenkel auf, in denen die Enden einer Achse befestigt sind, auf der die Rolle frei drehbar gelagert ist. Sie befindet sich platzsparend zwischen den Schenkeln des Trägers. In den beiden Schenkeln lässt sich die Achse sicher befestigen. Der Träger kann auch so ausgebildet sein, dass er eine Ausnehmung aufweist, in welcher die Rolle untergebracht ist. Die Achse, welche die Rolle trägt, erstreckt sich in diesem Falle durch diese Ausnehmung. Auch bei einer solchen Ausbildung ergibt sich eine sehr kompakte Ausbildung, da auch bei einer solchen Trägergestaltung die Rolle im Wesentlichen innerhalb des Trägers untergebracht ist und nur so weit über ihn vorsteht, dass die Rolle in Kontakt mit der Federwelle gelangen kann.In a preferred embodiment, the carrier has two legs in which the ends of an axle are attached on which the roller is freely rotatably mounted. It is located between the legs of the wearer to save space. The axle can be securely fastened in the two legs. The carrier can also be designed in such a way that it has a recess in which the roller is accommodated. The axis which carries the roller extends in this case through this recess. Such a design also results in a very compact design, since even with such a carrier design the roller is essentially accommodated within the carrier and only protrudes over it so far that the roller can come into contact with the spring shaft.

Um einen sicheren Vorschub der Federwelle in beiden Achsrichtungen zu gewährleisten, ist der Träger erfindungsgemäß in Richtung auf die Federwelle druckbelastet.In order to ensure a reliable advance of the spring shaft in both axial directions, according to the invention the carrier is pressure-loaded in the direction of the spring shaft.

Beim erfindungsgemäßen Reinigungsgerät steht der Träger unter der Kraft wenigstens einer Druckfeder. Sie stellt ein konstruktiv einfaches Bauteil dar, das kostengünstig ist und sich einfach einbauen lässt.In the cleaning device according to the invention, the carrier is under the force of at least one compression spring. It represents a structurally simple component that is inexpensive and easy to install.

Bei einer vorteilhaften Ausbildung wird die Druckfeder durch ein Tellerfederpaket gebildet, mit dem bei kleinem Bauvolumen hohe Druckkräfte erzeugt werden können.In an advantageous embodiment, the compression spring is formed by a disk spring assembly with which high compressive forces can be generated with a small structural volume.

Zur Verspannung der Druckfeder dient wenigstens ein Spannelement.At least one tensioning element is used to tension the compression spring.

Es ist vorteilhaft ein Drehrad, das in eine Aufnahme des Gehäuses geschraubt wird. Dadurch ist eine stufenlose Verstellung des Spannelementes möglich, so dass sich die auf den Träger wirkende Druckkraft feinfühlig einstellen lässt. Die Rolle kann mittels des Spannelementes auf diese Weise optimal so auf die Federwelle gedrückt werden, dass diese im erforderlichen Maße in beiden Vorschubrichtungen bewegt werden kann.It is advantageous to use a rotary wheel that is screwed into a receptacle in the housing. This enables the tensioning element to be continuously adjusted so that the pressure force acting on the carrier can be adjusted with great sensitivity. In this way, the roller can be optimally pressed onto the spring shaft by means of the clamping element in such a way that it can be moved in both feed directions to the required extent.

Eine kompakte Ausbildung ergibt sich vorteilhaft, wenn die Druckfeder innerhalb des Spannelementes untergebracht ist. Dabei wird die Druckfeder auch vor Beschädigung und/oder Verschmutzung geschützt.A compact design is advantageous if the compression spring is housed within the tensioning element. The compression spring is also protected from damage and / or contamination.

Bei einer vorteilhaften Ausführungsform liegt die Druckfeder unter Zwischenlage einer Druckscheibe auf dem Träger auf. Die Druckkraft kann somit gleichmäßig auf den Träger übertragen werden. Das Spannelement hat geringen Abstand von der Druckscheibe, so dass eine sichere Druckkrafterzeugung gewährleistet ist. Dabei kann das Spannelement auch so ausgebildet sein, dass es an der Druckscheibe zur Anlage kommt, wenn eine vorgesehene maximale Druckspannung eingestellt ist. Dadurch kann erreicht werden, dass ein zu hoher Anpressdruck der Rolle an der Federwelle vermieden wird.In an advantageous embodiment, the compression spring rests on the carrier with a pressure washer in between. The compressive force can thus be transmitted evenly to the carrier. The tensioning element is at a small distance from the thrust washer, so that a reliable pressure force generation is guaranteed. In this case, the tensioning element can also be designed in such a way that it comes to rest on the thrust washer when an intended maximum compressive stress is set. In this way, it can be achieved that an excessive contact pressure of the roller on the spring shaft is avoided.

Zur kompakten Ausbildung des Reinigungsgerätes wird im erfindungsgemäßen Reinigungsgerät der Griff mit einer Achse das Spannelement durchsetzt. Bevorzugt haben der Träger für die dritte Rolle, das Spannelement und der Griff eine gemeinsame, quer, vorzugsweise senkrecht zur Federwelle verlaufende Achse. Eine solche Ausbildung hat den Vorteil, dass der Träger, das Spannelement und der Griff einfach montiert werden können. Die Federwelle, die sich quer hierzu erstreckt, stört die Montage dieser Bauteile nicht.To make the cleaning device compact, in the cleaning device according to the invention the handle is penetrated by an axis through the clamping element. The carrier for the third roller, the tensioning element and the handle preferably have a common one that runs transversely, preferably perpendicularly, to the spring shaft Axis. Such a design has the advantage that the carrier, the tensioning element and the handle can be easily mounted. The spring shaft, which extends transversely to this, does not interfere with the assembly of these components.

Vorteilhaft durchsetzt die Achse des Griffes die Druckfeder. Dies trägt weiter zur kompakten Gestaltung des Reinigungsgerätes bei.The axis of the handle advantageously passes through the compression spring. This further contributes to the compact design of the cleaning device.

Die Anwendung des Reinigungsgerätes durch den Benutzer wird in vorteilhafter Weise erleichtert, wenn die Drehbewegung des Griffes in beiden Richtungen durch jeweils wenigstens einen Anschlag begrenzt ist. Die Rolle kann somit sehr einfach in die beiden maximalen Verstelllagen verstellt werden. Zwischen diesen maximalen Verstelllagen kann der Benutzer des Reinigungsgerätes durch entsprechendes Drehen des Griffes jede gewünschte Zwischenlage der Rolle einstellen. Dies hat Einfluss auf die Vorschubgeschwindigkeit der Federwelle.The use of the cleaning device by the user is advantageously facilitated if the rotary movement of the handle is limited in both directions by at least one stop in each case. The role can thus be adjusted very easily into the two maximum adjustment positions. Between these maximum adjustment positions, the user of the cleaning device can set any desired intermediate position of the roller by turning the handle accordingly. This has an influence on the feed speed of the spring shaft.

Beim erfindungsgemäßen Reinigungsgerät wird die Abstützung der Federwelle durch zwei weitere, lagefeste Rollen gebildet, die der verstellbaren Rolle gegenüberliegen. Die Federwelle wird somit zwischen drei Rollen hindurchgeführt, die jeweils an der Federwelle anliegen. Vorteilhaft haben die drei Rollen einen Winkelabstand von etwa 120° zueinander. Die lagefesten, frei drehbaren Rollen stützen die Federwelle bei ihrer Vorschubbewegung zuverlässig ab, wobei in vorteilhafter Weise nur geringe Reibung auftritt.In the cleaning device according to the invention, the support of the spring shaft is formed by two further, fixed rollers which are opposite the adjustable roller. The spring shaft is thus passed between three rollers which each bear against the spring shaft. The three rollers advantageously have an angular distance of about 120 ° from one another. The positionally fixed, freely rotatable rollers reliably support the spring shaft during its advance movement, with only low friction advantageously occurring.

Bevorzugt liegen die drei Rollen etwa auf gleicher Höhe im Bereich einer Durchgangsöffnung des Gehäuses, die einen Aufnahmeraum für ein Kupplungsstück der Trommel mit einer gegenüberliegenden Vertiefung des Gehäuses verbindet. Die drei an der Federwelle in diesem Bereich anliegenden Rollen sind auf diese Weise platzsparend im Gehäuse untergebracht, wobei die Federwelle durch die etwa auf gleicher Höhe liegenden Rollen, bezogen auf die Längsrichtung der Federwelle, eine optimale Abstützung und einen optimalen Vorschub gewährleisten.The three rollers are preferably located approximately at the same height in the area of a through opening in the housing which connects a receiving space for a coupling piece of the drum with an opposite recess in the housing. The three rollers resting on the spring shaft in this area are accommodated in the housing in a space-saving manner, with the spring shaft ensuring optimum support and optimum feed due to the rollers, which are approximately at the same height in relation to the longitudinal direction of the spring shaft.

Die Drehachsen der weiteren, frei drehbaren Rollen sind vorteilhaft gegenüber der Federwelle sowohl in der Horizontalen als auch in der Vertikalen geneigt angeordnet. Die Drehachsen liegen, bezogen auf die Federwelle, spiegelsymmetrisch zur Federwelle, senkrecht auf die Federwelle gesehen. Mit einer solchen Ausbildung ergibt sich ein zuverlässiger Vorschub der Federwelle in ihren beiden Achsrichtungen.The axes of rotation of the further, freely rotatable rollers are advantageously arranged inclined relative to the spring shaft both in the horizontal and in the vertical. The axes of rotation are, based on the spring shaft, mirror-symmetrical to the spring shaft, viewed perpendicular to the spring shaft. Such a design results in a reliable advance of the spring shaft in both of its axial directions.

Der Anmeldungsgegenstand ergibt sich nicht nur aus dem Gegenstand der einzelnen Patentansprüche, sondern auch durch alle in den Zeichnungen und der Beschreibung offenbarten Angaben und Merkmale. Sie werden, auch wenn sie nicht Gegenstand der Ansprüche sind, als erfindungswesentlich beansprucht, soweit sie einzeln oder in Kombination gegenüber dem Stand der Technik neu sind.The subject of the application results not only from the subject matter of the individual patent claims, but also from all information and features disclosed in the drawings and the description. Even if they are not the subject of the claims, they are claimed to be essential to the invention insofar as they are new to the state of the art individually or in combination.

Weitere Merkmale der Erfindung ergeben sich aus den weiteren Ansprüchen, der Beschreibung und den Zeichnungen.Further features of the invention emerge from the further claims, the description and the drawings.

Die Erfindung wird anhand eines in den Zeichnungen dargestellten Ausführungsbeispieles näher erläutert. Es zeigen

Fig. 1
im Axialschnitt ein erfindungsgemäßes Reinigungsgerät,
Fig. 2
teilweise in perspektivischer Darstellung und teilweise in einem Schnitt das erfindungsgemäße Reinigungsgerät,
Fig. 3
eine Ansicht eines Federwellenantriebes des erfindungsgemäßen Reinigungsgerätes,
Fig. 4
einen Schnitt längs der Linie IV-IV in Fig. 2,
Fig. 5
eine Draufsicht auf den Federwellenantrieb des erfindungsgemäßen Reinigungsgerätes.
The invention is explained in more detail using an exemplary embodiment shown in the drawings. Show it
Fig. 1
a cleaning device according to the invention in axial section,
Fig. 2
partly in a perspective view and partly in a section the cleaning device according to the invention,
Fig. 3
a view of a spring shaft drive of the cleaning device according to the invention,
Fig. 4
a section along the line IV-IV in Fig. 2 ,
Fig. 5
a plan view of the spring shaft drive of the cleaning device according to the invention.

Mit dem Reinigungsgerät werden Rohrleitungen gereinigt, um beispielsweise Verstopfungen der Rohrleitungen oder auch Kalkablagerungen zu beseitigen. Das Reinigungsgerät ist ein handgeführtes Gerät, das durch einen (nicht dargestellten) motorischen Antrieb angetrieben wird. Ein solcher Antrieb ist vorteilhaft eine Handbohrmaschine, an welche das Reinigungsgerät vom Benutzer angeschlossen werden kann.The cleaning device is used to clean pipes, for example to remove blockages in the pipes or limescale deposits. The cleaning device is a hand-held device that is driven by a motor drive (not shown). Such a drive is advantageously a hand drill to which the cleaning device can be connected by the user.

Das Reinigungsgerät hat eine drehbare Trommel 1, die eine Federwelle 2 aufnimmt. Die Federwelle 2 wird auch als Reinigungsspirale bezeichnet, die in das zu reinigende Rohr in noch zu beschreibender Weise geschoben wird. Die Federwelle 2 wird innerhalb der Trommel 1 in bekannter Weise aufgewickelt.The cleaning device has a rotatable drum 1 which receives a spring shaft 2. The spring shaft 2 is also referred to as a cleaning spiral, which is pushed into the pipe to be cleaned in a manner still to be described. The spring shaft 2 is wound up within the drum 1 in a known manner.

Die Trommel 1 hat einen Zylinderteil 3, auf den stirnseitig ein Deckel 4 aufgesetzt und lösbar mit ihm verbunden ist. Im Bereich von Befestigungsschrauben 5, mit denen der Deckel 4 an der Stirnseite des Zylinderteiles 3 befestigt wird, ist der Zylinderteil verdickt ausgebildet, so dass die Befestigungsschrauben 5 ausreichenden Halt finden. Diese verdickten Bereiche verstärken außerdem die Trommel 1. Die Befestigungsschrauben 5 liegen mit ihren Köpfen versenkt im Deckel 4.The drum 1 has a cylinder part 3 on which a cover 4 is placed on the front side and is detachably connected to it. In the area of the fastening screws 5 with which the cover 4 is fastened to the end face of the cylinder part 3, the cylinder part is thickened so that the fastening screws 5 are adequately held. These thickened areas also reinforce the drum 1. The heads of the fastening screws 5 are countersunk in the cover 4.

Der Deckel 4 hat einen umlaufenden schmalen Rand 6, der auf der Stirnseite des Zylinderteils 3 aufliegt. Damit der Deckel 4 einfach gegenüber der Trommel 1 bzw. seinem Zylinderteil 3 ausgerichtet werden kann, hat er eine umlaufende Ringwand 7, mit welcher der Deckel 6 an der zylindrischen Innenwand 8 des Zylinderteils anliegt. Der umlaufende Rand 6 bildet einen Radialflansch, der senkrecht an die Ringwand 7 anschließt.The cover 4 has a circumferential narrow edge 6 which rests on the end face of the cylinder part 3. So that the cover 4 can be aligned easily with respect to the drum 1 or its cylinder part 3, it has a circumferential annular wall 7 with which the cover 6 rests against the cylindrical inner wall 8 of the cylinder part. The circumferential edge 6 forms a radial flange which adjoins the annular wall 7 perpendicularly.

Der mittlere Bereich des Deckels 4 ist als Konus 9 ausgebildet, der sich in Richtung auf das Innere der Trommel 1 verjüngt. Mittig ist der Konus 9 mit einer Haltebuchse 10 versehen, in der zentral ein Antriebsbolzen 11 befestigt ist. Er steht über die Haltebuchse 10 vor und ragt in eine durch den Konus 9 gebildete Vertiefung 12 des Deckels 4. Vorteilhaft ragt der Antriebsbolzen 11 nicht über die Stirnseite der Trommel 1 vor. Der überstehende Teil des Antriebsbolzens 11 wird vom Spannfutter der Bohrmaschine aufgenommen. Mit dem eingespannten Antriebsbolzen 11 wird die gesamte Trommel 1 um ihre Achse gedreht.The middle area of the cover 4 is designed as a cone 9 which tapers in the direction of the interior of the drum 1. In the center, the cone 9 is provided with a retaining bush 10 in which a drive pin 11 is fastened centrally. It protrudes over the retaining sleeve 10 and protrudes into one through the cone 9 formed recess 12 of the cover 4. The drive pin 11 advantageously does not protrude beyond the end face of the drum 1. The protruding part of the drive pin 11 is taken up by the chuck of the drill. With the clamped drive pin 11, the entire drum 1 is rotated about its axis.

Der Zylinderteil 3 der Trommel 1 geht in einen Konusteil 13 über, der sich in gleicher Richtung verjüngt wie der Konus 9 des Deckels 4. Der Konusteil 13 schließt am schmalen Ende an ein flaches Endstück 14 an, das zentral eine Durchführöffnung 15 für die Federwelle 2 aufweist. In die Durchführöffnung 15 ragt ein Hals 16 einer Lagerbuchse 17. Der Hals 16 steht nach innen über das Endstück 14 der Trommel 1 vor. Auf das überstehende Halsende ist eine Mutter 18 geschraubt, mit der die Lagerbuchse 17 fest mit der Trommel 1 verbunden wird.The cylinder part 3 of the drum 1 merges into a conical part 13, which tapers in the same direction as the cone 9 of the cover 4 having. A neck 16 of a bearing bush 17 protrudes into the through opening 15. The neck 16 protrudes inwardly beyond the end piece 14 of the drum 1. A nut 18 with which the bearing bush 17 is firmly connected to the drum 1 is screwed onto the protruding end of the neck.

Das Endstück 14 weist an seiner Außenseite eine mittige Vertiefung 19 auf, in welche die Lagerbuchse 17 ragt. Sie liegt am Boden sowie an der Seitenwand der Vertiefung 19 an und ist dadurch gegenüber der Trommel 1 ausgerichtet. Die Durchführöffnung 15 und der gegenüberliegende Antriebsbolzen 11 liegen fluchtend zueinander sowie in der Achse der Trommel 1. Mit der Mutter 18 wird die Lagerbuchse 17 fest gegen den Boden der Vertiefung 19 gezogen.The end piece 14 has a central recess 19 on its outside, into which the bearing bush 17 protrudes. It rests on the bottom and on the side wall of the recess 19 and is thereby aligned with respect to the drum 1. The feed-through opening 15 and the opposite drive pin 11 are aligned with one another and in the axis of the drum 1. The nut 18 pulls the bearing bush 17 firmly against the bottom of the recess 19.

Die Lagerbuchse 17 ragt in einen Aufnahmeraum 20 eines Gehäuses 21 (Fig. 3). Der Aufnahmeraum 20 hat eine Innenwand 22, die beispielhaft aus drei im Durchmesser unterschiedlichen Innenwandabschnitten 22a bis 22c gebildet wird. Der Innenwandabschnitt 22a, der an einen Boden 23 des Aufnahmeraumes 20 anschließt, hat den kleinsten Durchmesser. Der mittlere Innenwandabschnitt 22b hat einen größeren Durchmesser, der seinerseits kleiner ist als der Durchmesser des Innenwandabschnittes 22c, der an die freie Stirnseite 24 des Gehäuses 21 anschließt. Die Innenwandabschnitte 22a bis 22c gehen jeweils über eine umlaufende Radialschulter 25, 26 ineinander über. Die Radialschulter 25 am Übergang zwischen den beiden Innenwandabschnitten 22a, 22b dient als Anlage für ein Drehlager 27 (Fig. 1), das beispielhaft ein Kugellager ist. Die axiale Breite des Drehlagers 27 entspricht vorteilhaft der axialen Breite des mittleren Innenwandabschnittes 22b.The bearing bush 17 protrudes into a receiving space 20 of a housing 21 ( Fig. 3 ). The receiving space 20 has an inner wall 22 which is formed, for example, from three inner wall sections 22a to 22c with different diameters. The inner wall section 22a, which adjoins a floor 23 of the receiving space 20, has the smallest diameter. The middle inner wall section 22b has a larger diameter, which in turn is smaller than the diameter of the inner wall section 22c, which adjoins the free end face 24 of the housing 21. The inner wall sections 22a to 22c each merge into one another via a circumferential radial shoulder 25, 26. The radial shoulder 25 at the transition between the two inner wall sections 22a, 22b serves as a system for a pivot bearing 27 ( Fig. 1 ), which is an example of a ball bearing. The axial width of the pivot bearing 27 advantageously corresponds to the axial width of the central inner wall section 22b.

Im Innenwandabschnitt 22c befindet sich eine Ringnut 28 (Fig. 4), die einen Sicherungsring 29 aufnimmt (Fig. 1), der an dem von der Radialschulter 25 abgewandten Ende des Drehlagers 27 anliegt. Dadurch ist die gesamte Trommel 1 gegen Herausziehen aus dem Gehäuse 21 axial gesichert.In the inner wall section 22c there is an annular groove 28 ( Fig. 4 ), which receives a locking ring 29 ( Fig. 1 ), which rests against the end of the pivot bearing 27 facing away from the radial shoulder 25. As a result, the entire drum 1 is axially secured against being pulled out of the housing 21.

Auf der Lagerbuchse 17 ist das Drehlager 27 zwischen einem Sicherungsring 30 und einer umlaufenden Radialschulter 31 axial gesichert. Der Sicherungsring 30 befindet sich in der Einbaulage der Trommel 1 etwa in Höhe der Radialschulter 25, während sich die Radialschulter 31 der Lagerbuchse 17 etwa in Höhe des Sicherungsringes 29 des Gehäuses 21 befindet.The rotary bearing 27 is axially secured on the bearing bush 17 between a securing ring 30 and a circumferential radial shoulder 31. In the installed position of the drum 1, the locking ring 30 is located approximately at the level of the radial shoulder 25, while the radial shoulder 31 of the bearing bush 17 is located approximately at the level of the locking ring 29 of the housing 21.

Die Lagerbuchse 17 hat in der Einbaulage geringen Abstand vom Boden 23 des Aufnahmeraumes 20, so dass die Trommel 1 ungehindert um ihre Achse drehen kann, wenn sie von der Bohrmaschine drehbar angetrieben wird.In the installed position, the bearing bush 17 is at a small distance from the floor 23 of the receiving space 20, so that the drum 1 can rotate unhindered about its axis when it is rotatably driven by the drill.

In den Boden 23 des Aufnahmeraumes 20 mündet eine Durchgangsöffnung 32 (Fig. 4), durch welche die Federwelle 2 mit Abstand zur Wandung der Durchgangsöffnung verläuft. Auch von der Wandung der Lagerbuchse 17 hat die Federwelle 2 radialen Abstand, so dass ihre Vorschubbewegung nicht beeinträchtigt wird.A through opening 32 opens into the bottom 23 of the receiving space 20 ( Fig. 4 ), through which the spring shaft 2 runs at a distance from the wall of the through opening. The spring shaft 2 is also at a radial distance from the wall of the bearing bush 17, so that its advance movement is not impaired.

Das Gehäuse 21 weist auf seiner dem Aufnahmeraum 20 abgewandten Seite eine stirnseitige Vertiefung 33 auf, die sich in Richtung auf die Stirnseite 34 des Gehäuses 21 erweitert und durch die Durchgangsöffnung 32 mit dem Aufnahmeraum 20 verbunden ist. Die Federwelle 2 ragt zentrisch durch die Vertiefung 33. Aufgrund der konischen Ausbildung der Vertiefung 33 kann die Federwelle 2 beim Einsatz des Reinigungsgerätes Querbewegungen ausführen, ohne dass sie mit der Wandung der Vertiefung 33 in Berührung kommt.On its side facing away from the receiving space 20, the housing 21 has an end-face recess 33 which widens in the direction of the end face 34 of the housing 21 and is connected to the receiving space 20 through the through-opening 32. The spring shaft 2 protrudes centrally through the recess 33. Due to the conical design of the recess 33, the spring shaft 2 can move transversely when the cleaning device is used perform without it coming into contact with the wall of the recess 33.

Das Gehäuse 21 ist im Bereich der Vertiefung 33 mit einer radial zur Durchgangsöffnung 32 liegenden Lageröffnung 35 versehen, in der ein Träger 36 drehbar gelagert ist. Der Träger 36 ist vorteilhaft gabelförmig ausgebildet und hat zwei parallel zueinander liegende Schenkel 37, 38, in denen eine Achse 39 befestigt ist. Auf ihr sitzt frei drehbar eine Rolle 40, die über die Trägerschenkel 37, 38 vorsteht und so in die Durchgangsöffnung 32 ragt, dass sie auf der Federwelle 2 zur Auflage gebracht werden kann.In the area of the recess 33, the housing 21 is provided with a bearing opening 35 which is located radially to the through opening 32 and in which a carrier 36 is rotatably mounted. The carrier 36 is advantageously fork-shaped and has two legs 37, 38 lying parallel to one another, in which an axis 39 is attached. A roller 40 is freely rotatable on it and protrudes over the support legs 37, 38 and protrudes into the through opening 32 in such a way that it can be brought to rest on the spring shaft 2.

Das Gehäuse 21 ist im Bereich der Lageröffnung 35 mit einem vorstehenden Hals 41 versehen, der vorteilhaft einstückig mit dem Gehäuse 21 ausgebildet ist. In den zylindrischen Hals 41 ragt ein zylindrischer Ansatz 42 eines Stellrades 43. Der Ansatz 42 ist in den Hals 41 geschraubt, der von einem Drehgriff 44 absteht, der sich im Bereich außerhalb des Halses 41 befindet.In the area of the bearing opening 35, the housing 21 is provided with a protruding neck 41, which is advantageously formed in one piece with the housing 21. A cylindrical extension 42 of an adjusting wheel 43 protrudes into the cylindrical neck 41. The extension 42 is screwed into the neck 41, which protrudes from a rotary handle 44 which is located in the area outside the neck 41.

Der Ansatz 42 liegt unter Zwischenlage einer Druckscheibe 45 auf dem Träger 36 flächig auf.The projection 42 rests flat on the carrier 36 with a pressure disk 45 interposed.

Im Ansatz 42 ist wenigstens eine Druckfeder 46 untergebracht, die über die Druckscheibe 45 den Träger 36 in Richtung auf die Federwelle 2 belastet. Die Druckfeder 46 wird vorteilhaft durch ein Federpaket, insbesondere ein Tellerfederpaket, gebildet, das sich mit einem Ende auf der Druckscheibe 45 und mit dem anderen Ende an einer Ringschulter 47 abstützt, die in einem die Druckfeder 46 aufnehmenden Aufnahmeraum 48 des Ansatzes 42 vorgesehen ist. Der Ansatz 42 hat geringen Abstand von der Druckscheibe 45, so dass eine sichere Druckbeaufschlagung des Trägers 36 gewährleistet ist.At least one compression spring 46 is accommodated in the extension 42 and loads the carrier 36 in the direction of the spring shaft 2 via the pressure disk 45. The compression spring 46 is advantageously formed by a spring assembly, in particular a disc spring assembly, which is supported with one end on the pressure disk 45 and with the other end on an annular shoulder 47 which is provided in a receiving space 48 of the extension 42 that accommodates the compression spring 46. The extension 42 is at a small distance from the pressure disk 45, so that a reliable application of pressure to the carrier 36 is guaranteed.

Wie Fig. 1 zeigt, kann das Tellerfederpaket 46 auch unmittelbar auf dem Träger 36 aufliegen, so dass eine Druckscheibe entfallen kann.As Fig. 1 shows, the disk spring assembly 46 can also rest directly on the carrier 36, so that a pressure washer can be omitted.

Mit dem Stellrad 43, dessen Außendurchmesser größer ist als der Außendurchmesser des Ansatzes 42, wird die Druckkraft eingestellt, mit der über die Druckfeder 46 die Rolle 40 auf der Federwelle 2 aufliegt. Da der Ansatz 42 in den Hals 41 geschraubt ist, kann die Federkraft stufenlos eingestellt und so an die jeweiligen Gegebenheiten angepasst werden.With the adjusting wheel 43, the outer diameter of which is greater than the outer diameter of the projection 42, the pressure force is set with which the roller 40 rests on the spring shaft 2 via the compression spring 46. Since the extension 42 is screwed into the neck 41, the spring force can be continuously adjusted and thus adapted to the respective circumstances.

Der Träger 36 kann mittels eines Griffes 49 um seine Achse gedreht werden. Der Griff 49 erstreckt sich senkrecht zur Federwelle 2. Der Griff 49 hat eine Achse 50, die den Drehgriff 44, die Druckfeder 46 und die Druckscheibe 45 durchsetzt und im Träger 36 befestigt ist. Wird der Griff 49 um seine Achse gedreht, dann wird entsprechend der Träger 36 um seine Achse gedreht.The carrier 36 can be rotated about its axis by means of a handle 49. The handle 49 extends perpendicular to the spring shaft 2. The handle 49 has an axis 50 which passes through the rotary handle 44, the compression spring 46 and the pressure disk 45 and is fastened in the carrier 36. If the handle 49 is rotated about its axis, the carrier 36 is correspondingly rotated about its axis.

Die Rolle 40 liegt in der Darstellung gemäß den Fig. 1 bis 5 von oben auf der Federwelle 2 auf.The roller 40 is shown in FIG Figs. 1 to 5 from above on the spring shaft 2.

Das Reinigungsgerät hat als Abstützung für die Federwelle 2 zwei weitere Rollen 51, 52, die um ihre Achsen frei drehbar sind. Diese Rollen 51, 52 sitzen auf jeweils einer Achse 53, 54, die im Gehäuse 21 so befestigt ist, dass die Rollen 51, 52 in die Durchgangsöffnung 32 ragen und an der Federwelle 2 anliegen. Wie sich aus Fig. 3 ergibt, liegen die Rollen 40, 51, 52, in Achsrichtung der Durchgangsöffnung 32 gesehen, derart, dass ihre Berührbereiche mit der Federwelle 2 einen Winkelabstand von etwa 120° haben.As a support for the spring shaft 2, the cleaning device has two further rollers 51, 52 which are freely rotatable about their axes. These rollers 51, 52 each sit on an axle 53, 54 which is fastened in the housing 21 in such a way that the rollers 51, 52 protrude into the through opening 32 and lie against the spring shaft 2. How out Fig. 3 results, the rollers 40, 51, 52, viewed in the axial direction of the through opening 32, lie in such a way that their areas of contact with the spring shaft 2 are at an angular distance of approximately 120 °.

Die Achsen 53, 54 sind so im Gehäuse 21 befestigt, dass die auf ihnen sitzenden Rollen 51, 52 in die Durchgangsöffnung 32 ragen.The axes 53, 54 are fastened in the housing 21 in such a way that the rollers 51, 52 seated on them protrude into the through opening 32.

Die Drehachsen 55, 56 (Fig. 5) der Rollen 51, 52 liegen, senkrecht zur Federwelle 2 gesehen, beiderseits der Federwelle 2 spitzwinklig zueinander sowie zur Längsachse 58 der Federwelle 2. In Draufsicht auf die Federwelle 2 gesehen (Fig. 5) schneiden die Drehachsen 55, 56 einander in der Längsachse 58 der Federwelle 2. Außerdem sind die Drehachsen 55, 56 in Bezug auf die Achse 58 der Federwelle 2 im Bereich der Durchgangsöffnung 32 geneigt angeordnet (Fig. 3 bis 5). Die beiden Rollen 51, 52 liegen, in Draufsicht auf die Federwelle 2 gesehen (Fig. 5), spiegelsymmetrisch zueinander, bezogen auf die Längsachse 58 der Federwelle 2.The axes of rotation 55, 56 ( Fig. 5 ) of the rollers 51, 52 are, viewed perpendicular to the spring shaft 2, on both sides of the spring shaft 2 at an acute angle to each other and to the longitudinal axis 58 of the spring shaft 2. Seen from above on the spring shaft 2 ( Fig. 5 ) the axes of rotation 55, 56 intersect one another in the longitudinal axis 58 of the spring shaft 2. In addition, the axes of rotation 55, 56 are related inclined on the axis 58 of the spring shaft 2 in the area of the through opening 32 ( Figures 3 to 5 ). The two rollers 51, 52 are, seen in plan view of the spring shaft 2 ( Fig. 5 ), mirror-symmetrical to one another, based on the longitudinal axis 58 of the spring shaft 2.

Die Drehachse 57 der Rolle 40 kann durch Drehen des Trägers 36 in unterschiedliche Lagen relativ zur Federwelle 2 eingestellt werden. Durch Drehen des Trägers 36 um seine Achse wird die Drehachse 57 in unterschiedliche Schräglagen bezüglich der Achse der Federwelle 2 verstellt, in Draufsicht auf die Federwelle 2 gemäß Fig. 5 gesehen. In dieser Draufsicht schließt die Drehachse 57 der Rolle 40 einen Winkel α mit der Achse 58 der Federwelle 2 ein. Dadurch wird auf die Federwelle 2 eine Axialkraft ausgeübt, die dazu führt, dass die Federwelle 2 bei angetriebener Trommel 1 ausgefahren wird. Je nach Stellung der Rolle 40 wird die Federwelle 2 vor- oder zurückgeschoben.The axis of rotation 57 of the roller 40 can be set in different positions relative to the spring shaft 2 by rotating the carrier 36. By rotating the carrier 36 about its axis, the axis of rotation 57 is adjusted to different inclined positions with respect to the axis of the spring shaft 2, in a plan view of the spring shaft 2 according to FIG Fig. 5 seen. In this top view, the axis of rotation 57 of the roller 40 forms an angle α with the axis 58 of the spring shaft 2. As a result, an axial force is exerted on the spring shaft 2, which means that the spring shaft 2 is extended when the drum 1 is driven. Depending on the position of the roller 40, the spring shaft 2 is pushed forwards or backwards.

Mit dem Griff 49 kann der Träger 36 um seine Achse so gedreht werden, dass die Drehachse 57 der Rolle 40 mit der Achse 58 der Federwelle 2 den Winkel α in der anderen Richtung einschließt. In diesem Falle sorgt die so eingestellte Rolle 40 dafür, dass die Federwelle 2 bei gleicher Drehrichtung der Trommel 1 zurück in die Trommel bewegt wird.With the handle 49, the carrier 36 can be rotated about its axis in such a way that the axis of rotation 57 of the roller 40 with the axis 58 of the spring shaft 2 encloses the angle α in the other direction. In this case, the roller 40 adjusted in this way ensures that the spring shaft 2 is moved back into the drum with the drum 1 rotating in the same direction.

Zum Einfahren sowie zum Ausfahren der Federwelle 2 ist somit eine Drehrichtungsumkehr der Bohrmaschine bzw. der Trommel 1 nicht erforderlich. Der Benutzer des Reinigungsgerätes muss lediglich den Griff 49 so um seine Achse drehen, dass die Drehachse 57 der Rolle 40 entweder in die eine (strichpunktierte Linie in Fig. 5) oder die andere Richtung (gepunktete Linie in Fig. 5) relativ zur.Achse 58 der Federwelle 2 verläuft, in Draufsicht auf die Federwelle gesehen (Fig. 5).A reversal of the direction of rotation of the drilling machine or the drum 1 is therefore not required to retract and extend the spring shaft 2. The user of the cleaning device only has to turn the handle 49 about its axis in such a way that the axis of rotation 57 of the roller 40 is either in the one (dash-dotted line in Fig. 5 ) or the other direction (dotted line in Fig. 5 ) runs relative to the axis 58 of the spring shaft 2, viewed from above on the spring shaft ( Fig. 5 ).

Da der Griff 49 quer, insbesondere senkrecht zur Federwelle 2 verläuft, lässt sich die Rolle problemlos zwischen den beiden Endstellungen verschwenken. Wird die Rolle 40 in eine Mittelstellung geschwenkt, in welcher ihre Drehachse 57 parallel zur Achse 58 der Federwelle 2 liegt, bleibt die Federwelle 2 stehen und wird nicht weiter axial bewegt. Dadurch kann der Benutzer sehr rasch darauf reagieren, wenn der Widerstand in der zu reinigenden Rohrleitung zu hoch werden sollte. Durch die einfache Drehbewegung des Griffes 49 kann zudem die Umschaltung zwischen Vorwärts- und Rückwärtsbewegung der Federwelle 2 innerhalb kürzester Zeit durchgeführt werden, so dass sich auch hartnäckige Ablagerungen in einem Rohr zuverlässig entfernen lassen.Since the handle 49 runs transversely, in particular perpendicular to the spring shaft 2, the roller can be pivoted between the two end positions without any problems. If the roller 40 is pivoted into a central position in which its axis of rotation 57 is parallel to the axis 58 of the spring shaft 2, the spring shaft 2 stops and is not moved further axially. This allows the user to react very quickly if the resistance in the pipeline to be cleaned should become too high. As a result of the simple rotary movement of the handle 49, the switchover between forward and backward movement of the spring shaft 2 can also be carried out within a very short time, so that even stubborn deposits in a pipe can be reliably removed.

Da der Griff 49 quer zur Federwelle 2 liegt, kann das Gehäuse 21 beim Reinigungsvorgang bis nahe an das zu reinigende Rohr herangeführt werden, ohne dass die Verstellung der Rolle 40 beeinträchtigt wird. Der Griff 49 dient nicht nur zur Umsteuerung der Axialbewegung der Federwelle 2, sondern auch zum Halten des Reinigungsgerätes. Insbesondere ist dadurch ein ermüdungsfreies Arbeiten mit dem Reinigungsgerät möglich.Since the handle 49 lies transversely to the spring shaft 2, the housing 21 can be brought close to the pipe to be cleaned during the cleaning process without the adjustment of the roller 40 being impaired. The handle 49 serves not only to reverse the axial movement of the spring shaft 2, but also to hold the cleaning device. In particular, this enables fatigue-free work with the cleaning device.

Mit dem Drehrad 44 lässt sich die Anpresskraft einstellen, mit der die Rolle 40 auf der Federwelle 2 aufliegt. Mit dem Drehrad 44 lässt sich die Drucckraft der Druckfeder 46 einstellen. Je größer die Anpresskraft der Rolle 40 auf die Federwelle 2 ist, desto größer ist die Unterstützung der Axialbewegung der Federwelle 2 in der jeweiligen Achsrichtung.The pressing force with which the roller 40 rests on the spring shaft 2 can be adjusted with the rotary wheel 44. The pressure force of the compression spring 46 can be adjusted with the rotary wheel 44. The greater the pressing force of the roller 40 on the spring shaft 2, the greater the support for the axial movement of the spring shaft 2 in the respective axial direction.

Im Ausführungsbeispiel lässt sich der Träger 36 und damit die verstellbare Rolle 40 aus einer Mittelstellung, in der die Drehachse 57 parallel zur Längsachse 58 der Federwelle 2 liegt, beispielsweise um etwa ± 20° drehen. Die beiden Endstellungen können durch Anschläge festgelegt sein, so dass der Benutzer einfach in diese beiden Endstellungen gelangen kann. Da mit dem Griff 49 auch Zwischenstellungen der Rolle 40 eingestellt werden können, lässt sich die Vorschubgeschwindigkeit der Federwelle 2 in beiden Richtungen stufenlos einstellen.In the exemplary embodiment, the carrier 36 and thus the adjustable roller 40 can be rotated, for example, by approximately ± 20 ° from a central position in which the axis of rotation 57 is parallel to the longitudinal axis 58 of the spring shaft 2. The two end positions can be defined by stops so that the user can easily get into these two end positions. Since intermediate positions of the roller 40 can also be set with the handle 49, the feed speed of the spring shaft 2 can be continuously adjusted in both directions.

Der Griff 49 liegt mit einem Kegelstück 59 (Fig. 4) auf der Stirnseite des Drehrades 44 auf. Da das Kegelstück 59 wesentlich kleineren Durchmesser als der Griff 49 hat, lässt sich der Griff 49 einfach gegenüber dem Drehrad 44 drehen.The handle 49 lies with a cone piece 59 ( Fig. 4 ) on the face of the rotary wheel 44. Because the cone piece 59 has a much smaller diameter than the handle 49, the handle 49 can easily be rotated relative to the rotary wheel 44.

Da der Griff 49 quer in Bezug auf die Federwelle 2 im Bereich der Durchgangsöffnung 32 bzw. der Vertiefung 33 verläuft, hat das Gehäuse 21 in Achsrichtung nur eine geringe Länge. Die drei Rollen 40, 51, 52 lassen sich problemlos in dem kleinen Gehäuse 21 unterbringen. Da die Rollen 51, 52 unverstellbar im Gehäuse 21 angeordnet sind, sind für sie auch keine Verstelleinrichtungen erforderlich, was zur kompakten Form des Gehäuses 21 beiträgt. Der Griff 49 lässt sich einfach montieren, da er quer zur Federwelle 2 in das Gehäuse 21 eingesetzt wird. Der Griff 49 und die Federwelle 2 können unabhängig voneinander montiert bzw. demontiert werden. Sollte beispielsweise die Federwelle 2 beschädigt sein, kann sie einfach ausgetauscht werden, ohne dass der Griff 49 abgebaut bzw. demontiert werden müsste. Ebenso lässt sich der Griff 49 im Bedarfsfall einfach austauschen. Die Federwelle 2 wird vom Austausch des Griffes 49 nicht berührt.Since the handle 49 runs transversely with respect to the spring shaft 2 in the area of the through opening 32 or the recess 33, the housing 21 has only a short length in the axial direction. The three rollers 40, 51, 52 can be accommodated in the small housing 21 without any problems. Since the rollers 51, 52 are arranged in a non-adjustable manner in the housing 21, no adjustment devices are required for them either, which contributes to the compact shape of the housing 21. The handle 49 is easy to assemble since it is inserted into the housing 21 transversely to the spring shaft 2. The handle 49 and the spring shaft 2 can be assembled and disassembled independently of one another. If, for example, the spring shaft 2 is damaged, it can simply be replaced without the handle 49 having to be dismantled or dismantled. The handle 49 can also be easily exchanged if necessary. The spring shaft 2 is not affected by the replacement of the handle 49.

Wie Fig. 3 zeigt, ist der Durchmesser des Drehrades 44 nur geringfügig kleiner als der Außendurchmesser des Gehäuses 21. Der Hals 41 hat kleineren Durchmesser als das Drehrad 44 und das Gehäuse 21, was zur kompakten Bauform des Gerätes beiträgt. Auch der Griff 49 ist so ausgebildet, dass er, in seiner Achsrichtung gesehen, nicht über das Drehrad 44 ragt. Der Griff 49 ist ausreichend lang, so dass er von der Hand des Benutzers bequem umfasst und zum Verstellen der Rolle 40 um seine Achse gedreht werden kann. Der Griff 49 kann aus jedem geeigneten Werkstoff hergestellt werden. Vorzugsweise besteht der Griff 49 aus einem geeigneten Kunststoff. Die Achse 50 besteht aus metallischem Werkstoff und ist an ihrem von der Rolle 40 abgewandten Ende in den Griff 49 eingebettet.As Fig. 3 shows, the diameter of the rotary wheel 44 is only slightly smaller than the outer diameter of the housing 21. The neck 41 has a smaller diameter than the rotary wheel 44 and the housing 21, which contributes to the compact design of the device. The handle 49 is also designed in such a way that, viewed in its axial direction, it does not protrude over the rotary wheel 44. The handle 49 is sufficiently long that it can be comfortably grasped by the hand of the user and rotated about its axis in order to adjust the roller 40. The handle 49 can be made of any suitable material. The handle 49 is preferably made of a suitable plastic. The axle 50 consists of a metallic material and is embedded in the handle 49 at its end facing away from the roller 40.

Die Federwelle 2 trägt an ihrem in Vorschubrichtung vorderen Ende in bekannter Weise ein entsprechendes Reinigungswerkzeug, mit dem die Ablagerungen im zu reinigenden Rohr entfernt werden können.At its front end in the feed direction, the spring shaft 2 carries in a known manner a corresponding cleaning tool with which the deposits in the pipe to be cleaned can be removed.

Das Reinigungsgerät zeichnet sich durch seine einfache konstruktive Gestaltung aus. Insbesondere die Umstellung bzw. Verstellung der Rolle 40 ist in einfacher Weise möglich, weil sie im Träger 36 gelagert ist, der mittels des Griffes 49 lediglich um seine Achse gedreht wird. Dadurch wird die Drehbewegung des Griffes 49 unmittelbar in die Drehbewegung des Trägers 36 umgesetzt, so dass aufwändige Zwischenübertragungselemente nicht erforderlich sind, die den Bauraum und damit die Baugröße des Gehäuses 21 vergrößern würden.The cleaning device is characterized by its simple structural design. In particular, the conversion or adjustment of the roller 40 is possible in a simple manner because it is mounted in the carrier 36, which is only rotated about its axis by means of the handle 49. As a result, the rotary movement of the handle 49 is converted directly into the rotary movement of the carrier 36, so that complex intermediate transmission elements are not required, which would increase the installation space and thus the size of the housing 21.

Claims (12)

  1. Cleaning device for cleaning pipelines, having a spring shaft (2), which is housed in a rotatably driven drum (1) and which is abutted by at least one roller (40) which can be adjusted by means of a handle (49), which roller (40) exerts a feed force on the spring shaft (2) and presses it against a support, wherein the handle (49) is arranged transversely with respect to the spring shaft (2) and is connected in a rotationally fixed manner to a carrier (36) for the adjustable roller (40), which carrier (36) is adjustably mounted in an opening (35) of a housing (21),
    characterized in that the handle (49) is rotatable about its longitudinal axis, in that the carrier (36) is pressure-loaded in the direction of the spring shaft (2) and is under the force of at least one pressure spring (46), which can be tensioned by at least one tensioning element (44), through which an axis (50) of the handle (49) passes, and in that the support is formed by two further positionally fixed rollers (51, 52), which are opposite the adjustable roller (40).
  2. Cleaning device according to Claim 1, characterized in that the carrier (36) is forkshaped.
  3. Cleaning device according to Claim 2, characterized in that the carrier (36) has two legs (37, 38) in which the ends of an axle (39) are fixed, on which the adjustable roller (40) is freely rotatable, which lies between the legs (37, 38).
  4. Cleaning device according to one of Claims 1 to 3, characterized in that the carrier (36) is under the force of at least one disc spring assembly.
  5. Cleaning device according to one of Claims 1 to 4, characterized in that the tensioning element (44) is a rotary wheel, which can be screwed into a receptacle (41) of the housing (21).
  6. Cleaning device according to one of Claims 1 to 5, characterized in that the pressure spring (46) is housed in the tensioning element (44).
  7. Cleaning device according to one of Claims 1 to 6, characterized in that the tensioning element (44) rests on the carrier (36) with the interposition of a thrust washer (45).
  8. Cleaning device according to one of Claims 1 to 7, characterized in that the carrier (36), the tensioning element (44) and the handle (49) have a common axis running transversely, preferably perpendicularly, to the spring shaft (2).
  9. Cleaning device according to one of Claims 1 to 8, characterized in that the axis (50) of the handle (49) passes through the pressure spring (46).
  10. Cleaning device according to one of Claims 1 to 9, characterized in that the rotational movement of the handle (49) is limited in both directions by respectively at least one stop.
  11. Cleaning device according to one of Claims 1 to 10, characterized in that the three rollers (40, 51, 52) are at approximately the same height in the region of a through opening (32), which connects a receiving space (20) for a coupling piece (17) of the drum (1) to an opposite recess (33) of the housing (21).
  12. Cleaning device according to one of Claims 1 to 11, characterized in that the axes of rotation (55, 56) of the other rollers (51, 52) are inclined both horizontally and vertically with respect to the spring shaft (2).
EP16000250.7A 2015-02-12 2016-02-02 Cleaning device for cleaning pipelines Active EP3059022B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015002045.5A DE102015002045A1 (en) 2015-02-12 2015-02-12 Cleaning device for cleaning pipelines

Publications (2)

Publication Number Publication Date
EP3059022A1 EP3059022A1 (en) 2016-08-24
EP3059022B1 true EP3059022B1 (en) 2021-08-11

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP16000250.7A Active EP3059022B1 (en) 2015-02-12 2016-02-02 Cleaning device for cleaning pipelines

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EP (1) EP3059022B1 (en)
DE (1) DE102015002045A1 (en)
ES (1) ES2898326T3 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10612230B2 (en) 2018-06-28 2020-04-07 Sdy International Co., Ltd. Cable control device for pipeline cleaner
DE102018115680B3 (en) 2018-06-28 2019-10-17 Sdy International Co., Ltd. Spring wire control device for pipeline cleaning devices
CN110340081A (en) * 2018-11-23 2019-10-18 上鼎邑国际企业有限公司 The spring thread control device of pipeline remover

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3206782A (en) * 1964-04-27 1965-09-21 John H Larsen Plumber's snake device
US3329044A (en) * 1965-10-04 1967-07-04 Singer Louis Cable handling device
GB1198746A (en) * 1967-11-06 1970-07-15 Conco Inc Conduit Cleaning Apparatus.
US4395791A (en) * 1980-03-03 1983-08-02 Lawrence Irwin F Spring feeding mechanism
US5235718A (en) * 1991-10-24 1993-08-17 Goodway Tools Corporation Tube cleaning apparatus
DE102008015532B4 (en) 2008-03-25 2014-08-07 Rothenberger Ag Cleaning device for cleaning pipelines

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DE102015002045A1 (en) 2016-08-18
ES2898326T3 (en) 2022-03-07
EP3059022A1 (en) 2016-08-24

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