WO2023161512A1 - Dispositif de verrouillage pour manchon d'étanchéité de diamètre modifiable - Google Patents

Dispositif de verrouillage pour manchon d'étanchéité de diamètre modifiable Download PDF

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Publication number
WO2023161512A1
WO2023161512A1 PCT/EP2023/054962 EP2023054962W WO2023161512A1 WO 2023161512 A1 WO2023161512 A1 WO 2023161512A1 EP 2023054962 W EP2023054962 W EP 2023054962W WO 2023161512 A1 WO2023161512 A1 WO 2023161512A1
Authority
WO
WIPO (PCT)
Prior art keywords
chamber
locking device
spring element
teeth
springs
Prior art date
Application number
PCT/EP2023/054962
Other languages
German (de)
English (en)
Inventor
Markus LÄMMERHIRT
Original Assignee
Pipetronics Gmbh & Co. Kg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE102022104689.3A external-priority patent/DE102022104689A1/de
Application filed by Pipetronics Gmbh & Co. Kg filed Critical Pipetronics Gmbh & Co. Kg
Publication of WO2023161512A1 publication Critical patent/WO2023161512A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
    • F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
    • F16L55/163—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a ring, a band or a sleeve being pressed against the inner surface of the pipe

Definitions

  • the present invention relates to a locking device for locking an adjusted inner diameter of an adjustable grommet formed of a band having two overlapping ends and locked to each other by a locking device to adjust the inner diameter.
  • One seal relates to an internal seal, with a conventional rubber-reinforced sealing device being applied from the inside against the leak point of the pipe inner wall of the pipe system.
  • the second possibility relates to a rubber-reinforced seal attached from the outside against the leak point of the outer pipe wall of the pipe system.
  • a conventional seal to be applied to the inner wall may have an inner seal boot comprising an expandable elastic band, such as a steel band or a band of plastic-like material, and a locking device.
  • an expandable elastic band such as a steel band or a band of plastic-like material
  • the steel strip is expanded in the transition from the open position to the locked position and held in its expanded position, ie in the locked position, using the locking device.
  • a slot provided with a row of teeth or two rows of teeth is arranged in the inner end of the strip of the steel strip, while a tensioning pinion is rotatably mounted on the outer end of the strip of the steel strip.
  • the locking pinion engages in the rows of teeth of the slot as a recess, so that after expansion has taken place, the tension of the inner seal sleeve after the locking pinion engages in the rows of teeth of the slit fixes the inner seal sleeve in the locked position in its expanded state.
  • the tension of the inner seal sleeve should be maintained after the locking pinion has engaged in the rows of teeth and the sealing tape applied to the outside of the inner seal sleeve is applied with force over the entire surface against the leak point of the conventional pipeline system.
  • the tension spring acts on the axis of rotation of the locking pinion, holds the locking pinion in engagement with the guide pinion and presses it into the space between the tensioning pinion and the guide pinion. Not only is the structure complex and prone to failure, but it does not ensure permanent sealing of the leak point of a piping system due to the mechanism's susceptibility to fatigue.
  • DE 20 2016 104 723 U1 describes a conventional sealing collar for internal insertion into a pipeline system for the purpose of sealing the leak in the inner pipe wall of the pipeline system, which comprises an expandable steel strip bent together in the shape of a ring with two strip ends, the inner strip end and the Outer band ends overlap in an overlapping area.
  • the conventional sealing sleeve also has a locking device, which includes both a arranged in the steel strip in the circumferential direction slot with at least one row of teeth and a locking member.
  • the latching element engages with its teeth in the row of teeth of the slot in a latching manner.
  • the locking member has a carrier which is provided with a plurality of elastic plastic-like spring elements that is designed to be elastically resilient and resiliently pivotable against the carrier.
  • the spring elements are firmly connected to a plastic-like carrier, optionally in one piece, and aligned obliquely to the circumferential direction, the distance between the free ends of adjacent spring elements corresponding to the distance between adjacent teeth of the rows of teeth, into which the free ends of the spring elements engage in a latching manner.
  • the locking device proves to be sensitive to the high compressive forces that can act on the spring elements, so that a permanent widening or spreading of the sealing sleeve with the same remaining in the blocked position and the loading of the outer sealing strip on the outside of the sealing sleeve the leak is not permanent, but due to material fatigue the whereabouts of the plastic-like material spring elements in the rows of teeth of the slot is omitted. Material fatigue leads to cracks and gaps in the spring elements, so that due to the crumbling of the spring elements that occurs as a result, the sealing sleeve returns from its blocked position to its open position and the elastic rubber band thereby releases the leak point.
  • the DE 10 2020 122 833 B3 describes an inner sealing sleeve for insertion into pipes.
  • the sealing sleeve disclosed there is in particular a liner-end sleeve.
  • the inner seal boot has a boot body formed from a band bent into a ring shape, with an inner band end and an outer band end overlapping.
  • the cuff body can be expanded, so that the inner end of the strap can be displaced along an expansion direction U relative to the outer end of the strap.
  • a locking arrangement prevents the inner strap end from being able to be shifted back relative to the outer strap end counter to the expansion direction.
  • the locking arrangement has a here at the inner end of the belt in Circumferentially arranged slot with a row of teeth and a locking mechanism with a locking member.
  • the locking element is under the influence of a spring element and engages with its locking teeth in the toothing of the row of teeth.
  • the latching element and the spring element are arranged in a chamber of a guide body, with the latching element being displaceable in the chamber.
  • the chamber has so-called jaws which prevent the latching element and/or the spring element from falling out.
  • the problem here is that the locking device has a complex structure and the locking member and the spring element can fall out of the housing, this should not be closed with a lid.
  • the object of the present invention was to overcome the disadvantages of the prior art and in particular to provide a device that is less error-prone and does not require additional closure elements, but the locking element is always stored securely.
  • a locking device for locking an adjusted inner diameter of an adjustable sealing sleeve which is formed from a band which has two overlapping ends, comprising a housing with a locking element and a spring element, the locking element being in a chamber of the housing is movably arranged and is operatively connected to the spring element, and wherein the locking element engages in a row of teeth arranged on the band through an opening of the chamber in order to arrest the band in one direction of movement, the chamber of the housing having a central axis K, which is under a angle a to the longitudinal axis L of the opening, and the side walls of the chamber are, in particular, essentially parallel to the central axis, so that the locking element moves along the central axis K towards and away from the row of teeth can.
  • the inner diameter of a sealing sleeve is understood to mean the diameter which includes the diameter of the cavity inside the sealing sleeve and the thickness of the sealing sleeve and thus corresponds to the diameter of the line to be sealed
  • a row of teeth according to the invention is formed in particular in a sawtooth profile, with the edges perpendicular to the opening being arranged in the direction of movement of the locking device when locking.
  • the row of teeth are arranged in particular vertically to one another to the direction of movement of the belt end, the housing resting in particular on the belt end or is formed in this.
  • the latching element has a further row of teeth corresponding to the row of teeth of the band.
  • the further row of teeth of the locking element is formed in particular in a sawtooth profile, with the edges perpendicular to the recess being arranged counter to the direction of movement of the locking device during locking, so that in a locked state they rest on the vertical edges of the row of teeth of the recess.
  • the angle a is 0° to 90° and in a particularly preferred embodiment 1° to 89°, with an angle in a range of 20° to 70° having proven to be particularly good.
  • the opening of the chamber preferably has the same length as the row of teeth of the latching element.
  • the row of teeth are arranged on an outer end of the band and the locking device on an inner end of the band on a curved, forming the cuff body band, wherein the inner band end and the outer tape ends overlap.
  • the cuff body formed from the band is present in a transport state as a band or as an expandable cuff, the cuff being formed by overlaying the inner band end with the outer band end and inserting the latching device into the recess.
  • the cuff body is expandable and the inner end of the strap is displaceable relative to the outer end of the strap along the recess
  • the latching device comprises a second latching element and the recess comprises a second row of teeth opposite the first, the second latching element being movably arranged in the chamber of the housing and being operatively connected to the first spring element and into the second The row of teeth engages through a second opening of the chamber, the chamber of the housing having a second central axis (J) which is at an angle ( ⁇ ) to the longitudinal axis (L) of the recess along which the second detent member moves
  • a second latching element and a second row of teeth of the recess are provided. This has the particular advantage that the sealing sleeve is evenly loaded after locking and the clamping force of the sleeve is distributed over two rows of teeth, which leads to increased durability and service life.
  • the angle ⁇ is 0° to 90° and in a particularly preferred embodiment 1° to 89°, with an angle in a range of 20° to 70° having proven to be particularly good.
  • the angle ⁇ and the angle ß are chosen to be the same, so that a movement symmetry of the two locking elements is created, in particular in that both angles are mirror-symmetrical about a parallel to the axis of movement of the tape end.
  • the second opening of the chamber preferably has the same length as the row of teeth of the second locking element.
  • the first and the second latching element are in particular operatively connected to the same spring element and are pressed by it in the direction of the first and second opening.
  • the chamber of the housing has a first and a second part, the first part being designed and set up to accommodate the first locking element and the first spring element, and the second part being designed and set up to accommodate a second locking element and a second spring element, while having a second opening of the chamber.
  • first locking member is connected to the first spring element and the second locking member to the first spring element or the second spring element and the first and / or second spring element is connected to the housing.
  • such a connection can be provided, since it is possible to prevent the latching element and/or the spring element from falling out.
  • the first and / or second spring element is formed as shaped springs, strip springs, flat springs, leaf springs, Federklammem, spiral springs, plate springs, wave springs, conical springs, barrel springs or ring springs.
  • the spring elements are made from a corrosion-resistant material, such as stainless steel and/or plastic, and are suitable for use in drinking water.
  • the spring element is made of an elastic material body which has a spring effect. It can be provided according to the invention that the first and/or second spring element comprise a locking device which is designed and set up to hold the restoring force of the spring element and to release it if necessary, with the first and/or second latching element in a preferred embodiment being in the locked position State does not engage in the first and / or second row of teeth of the recess.
  • FIG. 1 shows a schematic sectional view of a locking device according to the invention for determining an inner diameter of an adjustable sealing collar
  • FIG. 2a and b a schematic sectional view of a latching device according to the invention in various embodiments.
  • Figure 1 is a schematic sectional view of a locking device 1 according to the invention comprising a recess 2 with a row of teeth 3 and a latching device 4 is shown.
  • the locking device 1 comprises a housing 5 as well as a latching element 6 and a spring element 7.
  • the locking member 6 is movably arranged in a chamber 8 of the housing 5 and is in operative connection with the spring element 7 . Teeth of the latching device 4 engage through a first opening of the chamber 9 into the row of teeth 10, so that due to the selected shape of the teeth, the bands can move relative to one another in a first direction of movement and in an opposite second direction direction of movement are blocked.
  • the chamber of the housing 8 has a central axis (K) which is arranged at an angle a to the longitudinal axis (L) of the recess 2 .
  • the locking element 6 moves along the central axis (K) and is always securely locked by this movement, which runs obliquely to the movement of the belt.
  • FIGS. 2a and 2b show further embodiments of a locking device 4 according to the invention.
  • the latching device 4 according to FIG. 2a also has a second latching element 11 and a locking device 12, with the locking device 12 not being activated and the chamber of the housing 8 having a second central axis (J) which is at an angle ⁇ to the longitudinal axis (L). the recess 2 is arranged having.
  • the latching device 4 also includes a second chamber 13 and opening 14 as well as a second latching element 15 and a second spring element 16.

Abstract

L'invention concerne un dispositif de verrouillage (1) permettant de verrouiller un diamètre interne défini d'un manchon d'étanchéité adaptable qui est constitué d'une courroie qui a deux extrémités se chevauchant, comprenant un boîtier (5) avec un élément de verrouillage (6) et un élément ressort (7). L'élément de verrouillage est disposé de manière mobile dans une chambre (8) du boîtier et est relié de manière fonctionnelle à l'élément ressort, et l'élément de verrouillage vient en prise dans une rangée de dents disposées sur la courroie à travers une ouverture de la chambre afin de verrouiller la courroie dans une direction de mouvement, la chambre du boîtier ayant un axe central K qui est disposé selon un angle α par rapport à l'axe longitudinal L de l'évidement (2), et les parois latérales de la chambre étant formées parallèlement à l'axe central, en particulier sensiblement parallèlement à l'axe central, de sorte que l'élément de verrouillage est déplacé ou peut être déplacé vers et à partir de la rangée de dents le long de l'axe central K.
PCT/EP2023/054962 2022-02-28 2023-02-28 Dispositif de verrouillage pour manchon d'étanchéité de diamètre modifiable WO2023161512A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022104689.3 2022-02-28
DE102022104689.3A DE102022104689A1 (de) 2021-02-26 2022-02-28 Arretierungsvorrichtung für eine im Durchmesser veränderbare Dichtungsmanschette

Publications (1)

Publication Number Publication Date
WO2023161512A1 true WO2023161512A1 (fr) 2023-08-31

Family

ID=85704851

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2023/054962 WO2023161512A1 (fr) 2022-02-28 2023-02-28 Dispositif de verrouillage pour manchon d'étanchéité de diamètre modifiable

Country Status (1)

Country Link
WO (1) WO2023161512A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3516446A (en) * 1968-01-26 1970-06-23 Dresser Ind Inside repair clamp
US5738359A (en) * 1996-02-23 1998-04-14 Npc Acquisition Corp. Expandable band and locking mechanism for installing a flexible sealing element
EP0936479A1 (fr) * 1998-02-17 1999-08-18 KA-TE System AG Chemisage avec un organe de verrouillage
DE202010013588U1 (de) * 2010-09-24 2010-11-25 Uhrig Kanaltechnik Gmbh Lösbare Dichtungsmanschette zum Einsetzen in Rohre
DE102012111341B3 (de) * 2012-11-23 2014-04-10 GRAF Patentverwertungs GbR (vertretungsberechtigte Gesellschafter: Jürgen Graf, 78073 Bad Dürrheim, Joachim Graf, 78073 Bad Dürrheim) Dichtungsinnenmanschette mit verbessertem Arretierungsmechanismus
DE202016104723U1 (de) 2016-03-17 2016-10-07 Hans Bohnet Dichtungsmanschette zum Einsetzen in ein Rohrleitungssystem
DE102019002736A1 (de) * 2019-04-15 2020-10-15 Uhrig Energie Gmbh Verwendung einer Manschette zum Verbinden von Leitungen, Verfahren zum Verbinden von Leitungen eines Wärmetauschermoduls und Wärmetauschersystem mit der entsprechenden Verbindung
DE102020122833B3 (de) 2020-09-01 2021-09-23 Amex Sanivar Ag Dichtungsinnenmanschette zum Einsetzen in Rohre

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3516446A (en) * 1968-01-26 1970-06-23 Dresser Ind Inside repair clamp
US5738359A (en) * 1996-02-23 1998-04-14 Npc Acquisition Corp. Expandable band and locking mechanism for installing a flexible sealing element
EP0936479A1 (fr) * 1998-02-17 1999-08-18 KA-TE System AG Chemisage avec un organe de verrouillage
DE202010013588U1 (de) * 2010-09-24 2010-11-25 Uhrig Kanaltechnik Gmbh Lösbare Dichtungsmanschette zum Einsetzen in Rohre
DE102012111341B3 (de) * 2012-11-23 2014-04-10 GRAF Patentverwertungs GbR (vertretungsberechtigte Gesellschafter: Jürgen Graf, 78073 Bad Dürrheim, Joachim Graf, 78073 Bad Dürrheim) Dichtungsinnenmanschette mit verbessertem Arretierungsmechanismus
DE202016104723U1 (de) 2016-03-17 2016-10-07 Hans Bohnet Dichtungsmanschette zum Einsetzen in ein Rohrleitungssystem
DE102019002736A1 (de) * 2019-04-15 2020-10-15 Uhrig Energie Gmbh Verwendung einer Manschette zum Verbinden von Leitungen, Verfahren zum Verbinden von Leitungen eines Wärmetauschermoduls und Wärmetauschersystem mit der entsprechenden Verbindung
DE102020122833B3 (de) 2020-09-01 2021-09-23 Amex Sanivar Ag Dichtungsinnenmanschette zum Einsetzen in Rohre

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