DE102007026413B4 - Sealing element with defined aperture - Google Patents
Sealing element with defined aperture Download PDFInfo
- Publication number
- DE102007026413B4 DE102007026413B4 DE102007026413.7A DE102007026413A DE102007026413B4 DE 102007026413 B4 DE102007026413 B4 DE 102007026413B4 DE 102007026413 A DE102007026413 A DE 102007026413A DE 102007026413 B4 DE102007026413 B4 DE 102007026413B4
- Authority
- DE
- Germany
- Prior art keywords
- sealing element
- expansion pin
- bore
- defined aperture
- expanding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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
- F16L55/10—Means for stopping flow from or in pipes or hoses
- F16L55/12—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ
- F16L55/128—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose
- F16L55/132—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially deforming the packing
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- 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
- F16L55/07—Arrangement or mounting of devices, e.g. valves, for venting or aerating or draining
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- 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
- F16L55/10—Means for stopping flow from or in pipes or hoses
- F16L55/12—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ
- F16L55/128—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose
- F16L55/13—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by plastic deformation
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Vessels And Lids Thereof (AREA)
- Insertion Pins And Rivets (AREA)
Abstract
Dichtelement mit definierter Blende, welches als expandierendes Dichtelement ausgebildet ist, umfassend einen koaxial zur dessen Längsachse angeordneten Spreizstift (2), der nach dem Einsetzen des Dichtelementes (1) in der zu verschließenden Bohrung (6) zum radialen Aufspreizen des Dichtelementes (1) axial gezogen und anschließend an einer Sollbruchstelle (3) abgebrochen wird, dadurch gekennzeichnet, dass der Spreizstift (2) eine koaxial zur Längsachse des Dichtelementes (1) angeordnete Bohrung (4) aufweist, welche nach dem Abbrechen des Spreizstiftes (2) einen definierten Blendenquerschnitt (5) freigibt.Sealing element with defined aperture, which is formed as an expanding sealing element, comprising a coaxially to the longitudinal axis of the expansion pin (2), after insertion of the sealing element (1) in the bore to be closed (6) for radial spreading of the sealing element (1) axially drawn and then aborted at a predetermined breaking point (3), characterized in that the expanding pin (2) has a coaxial with the longitudinal axis of the sealing element (1) arranged bore (4) which after breaking off the expansion pin (2) has a defined aperture cross-section ( 5) releases.
Description
Die vorliegende Erfindung bezieht sich auf ein Dichtelement mit definierter Blende, gemäß dem Oberbegriff des Patentanspruchs 1.The present invention relates to a sealing element with a defined aperture, according to the preamble of
Aus dem Stand der Technik ist bekannt, Bohrungen in Hydrauliksystemen durch verschiedene Verschlusselemente abzudichten. Üblicherweise werden als Verschlusselemente Hülsen, Kugeln, Expander oder Schrauben eingesetzt. Hülsen und Kugeln weisen den Nachteil auf, dass der Bohrungsdurchmesser, beispielsweise durch Reiben, sehr genau gefertigt werden muss, wobei bei Schrauben in nachteiliger Weise ein Gewinde benötigt wird.From the prior art it is known to seal holes in hydraulic systems by various closure elements. Usually, sleeves, balls, expander or screws are used as closure elements. Sleeves and balls have the disadvantage that the bore diameter, for example by rubbing, must be made very accurately, with screws in a disadvantageous thread is needed.
Des weiteren besteht bei vielen Verschlusselementen die Notwendigkeit einer Sicherung, was beispielsweise durch Verkleben oder Verstemmen erfolgen kann. Expandierende Verschlusselemente weisen hingegen den Vorteil auf, dass der Bohrungsdurchmesser relativ ungenau sein kann; zudem ist oft eine einfache Bohrbearbeitung ausreichend, um die Dichtheit des Verschlusselementes zu gewährleisten.Furthermore, there is the need for a fuse in many closure elements, which can be done for example by gluing or caulking. By contrast, expanding closure elements have the advantage that the bore diameter can be relatively inaccurate; In addition, a simple drilling is often sufficient to ensure the tightness of the closure element.
Wenn die Bohrung in einem Hydrauliksystem entlüftet werden soll, kann z. B. in die Dichthülse eine Bohrung eingebracht werden, die als Blende dient. Als weitere Elemente, die eine Entlüftung ermöglichen, sind Einsteckelemente bzw. Einschraubelemente bekannt, die in nachteiliger Weise eine aufwändige Bearbeitung der Bohrung durch Reiben oder Gewindeschneiden bzw. eine weitere Art der Sicherung (Verkleben, Verstemmen) benötigen.If the hole to be vented in a hydraulic system, z. B. in the sealing sleeve a hole are introduced, which serves as a diaphragm. As further elements that allow venting, male or female elements are known, which disadvantageously require a complicated processing of the bore by rubbing or tapping or another type of backup (gluing, caulking).
Aus der
Aus der
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein Dichtelement anzugeben, welches so verschlossen werden kann, dass eine definierte Blendenwirkung erzielt wird. Bei dem erfindungsgemäßen Dichtelement sollen Bohrungstoleranzen eine untergeordnete Rolle spielen; zudem soll keine aufwändige Bearbeitung der Bohrung sowie keine zusätzliche Sicherung benötigt werden.The present invention has for its object to provide a sealing element, which can be closed so that a defined aperture effect is achieved. In the sealing element according to the invention bore tolerances should play a minor role; In addition, no elaborate machining of the hole and no additional backup is required.
Diese Aufgabe wird durch die Merkmale der unabhängigen Patentansprüche 1, 4 und 5 gelöst. Weitere erfindungsgemäße Ausgestaltungen und Vorteile gehen aus den Unteransprüchen hervor.This object is solved by the features of
Demnach wird im Rahmen einer ersten Ausgestaltung der Erfindung ein als expandierendes Dichtelement ausgebildetes Dichtelement vorgeschlagen, umfassend einen koaxial zur dessen Längsachse angeordneten Spreizstift, welcher nach dem Einsetzen des Dichtelementes in der zu verschließenden Bohrung zum radialen Aufspreizen des Dichtelementes axial gezogen und anschließend an einer Sollbruchstelle abgebrochen wird.Accordingly, in the context of a first embodiment of the invention designed as an expanding sealing element sealing element is proposed, comprising a coaxially to the longitudinal axis arranged expansion pin, which is pulled axially after insertion of the sealing element in the hole to be closed for radial spreading of the sealing element and then stopped at a predetermined breaking point becomes.
Gemäß der Erfindung weist der Spreizstift eine koaxial zur Längsachse des Dichtelementes angeordnete Bohrung auf, welche nach dem Abbrechen des Spreizstiftes einen definierten Blendenquerschnitt freigibt.According to the invention, the expansion pin has a coaxially arranged to the longitudinal axis of the sealing element bore, which releases a defined aperture cross-section after canceling the expansion pin.
Die im montierten Zustand die Blendenfunktion aufweisende Bohrung im Spreizstift kann zylindrisch oder konisch ausgeführt und mittels Bohren oder spanloser Fertigung gefertigt sein. Gemäß der Erfindung ragt die Bohrung (vor dem Abbrechen des Spreizstiftes) axial betrachtet über die Bruchkante der Sollbruchstelle des Spreizstiftes hinaus.The in the assembled state, the aperture function having hole in the expansion pin can be cylindrical or conical and made by drilling or non-cutting production. According to the invention, the bore (before the breaking off of the spreader pin) protrudes axially beyond the breaking edge of the predetermined breaking point of the spreader pin.
Im Rahmen zweier weiteren Ausführungsformen der Erfindung wird vorgeschlagen, unabhängig von der Ausgestaltung des verwendeten Dichtelementes, die Blendenwirkung dadurch zu erzielen, dass eine Nut oder Riefe in Längsrichtung oder spiralförmig entweder an der Zylinderfläche des Dichtelements oder an der Zylinderfläche der zu verschließenden Bohrung angebracht wird. Das Dichtelement ist hierbei entweder als expandierendes Dichtelement oder als Dichthülse ausgebildet.In the context of two further embodiments of the invention it is proposed, irrespective of the configuration of the sealing element used, to achieve the diaphragm effect by attaching a groove or groove in the longitudinal direction or spirally either to the cylindrical surface of the sealing element or to the cylindrical surface of the bore to be closed. The sealing element is in this case formed either as an expanding sealing element or as a sealing sleeve.
Durch die erfindungsgemäße Konzeption wird ein Dichtelement zur Verfügung gestellt, bei dem etwaige Bohrungstoleranzen eine untergeordnete Rolle spielen. In vorteilhafter Weise ist keine aufwändige Bearbeitung der Bohrung durch Reiben oder Gewindeschneiden erforderlich, wobei auch eine zusätzliche Sicherung, beispielsweise durch Verkleben oder Verstemmen entfällt.By the conception according to the invention, a sealing element is provided, in which any bore tolerances play a minor role. Advantageously, no elaborate machining of the bore by rubbing or tapping is required, with an additional backup, for example, by gluing or caulking omitted.
Die gemäß der Erfindung ausgebildeten Dichtelemente sind für sehr hohe Drücke geeignet und weisen zudem eine geringe Setztiefe und einen sehr festen Sitz auf.The sealing elements formed according to the invention are suitable for very high pressures and also have a low setting depth and a very tight fit.
Die Erfindung wird im Folgenden anhand der beigefügten Figur beispielhaft näher erläutert. Es zeigen:The invention will be explained in more detail below with reference to the accompanying figure. Show it:
Gemäß
Der Spreizstift
Wie aus
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Dichtelementsealing element
- 22
- SpreizstiftArrowhead
- 33
- SollbruchstelleBreaking point
- 44
- Bohrungdrilling
- 55
- BlendenquerschnittOrifice section
- 66
- zu verschließende Bohrunghole to be closed
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007026413.7A DE102007026413B4 (en) | 2007-06-06 | 2007-06-06 | Sealing element with defined aperture |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007026413.7A DE102007026413B4 (en) | 2007-06-06 | 2007-06-06 | Sealing element with defined aperture |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102007026413A1 DE102007026413A1 (en) | 2008-12-11 |
DE102007026413B4 true DE102007026413B4 (en) | 2014-07-10 |
Family
ID=39942115
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102007026413.7A Expired - Fee Related DE102007026413B4 (en) | 2007-06-06 | 2007-06-06 | Sealing element with defined aperture |
Country Status (1)
Country | Link |
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DE (1) | DE102007026413B4 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1122787B (en) * | 1959-04-28 | 1962-01-25 | Werner Viebering | Closing plugs, in particular vent plugs, for closing smooth housing bores |
DE2236726A1 (en) * | 1970-07-29 | 1973-02-01 | Anglo Amer Corp South Africa | DEVICE FOR CONTROLLING A FLOW RATE |
EP0364699A2 (en) * | 1988-09-16 | 1990-04-25 | Koenig Verbindungstechnik Ag | Method for sealing a bore, and sealed bore |
-
2007
- 2007-06-06 DE DE102007026413.7A patent/DE102007026413B4/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1122787B (en) * | 1959-04-28 | 1962-01-25 | Werner Viebering | Closing plugs, in particular vent plugs, for closing smooth housing bores |
DE2236726A1 (en) * | 1970-07-29 | 1973-02-01 | Anglo Amer Corp South Africa | DEVICE FOR CONTROLLING A FLOW RATE |
EP0364699A2 (en) * | 1988-09-16 | 1990-04-25 | Koenig Verbindungstechnik Ag | Method for sealing a bore, and sealed bore |
Also Published As
Publication number | Publication date |
---|---|
DE102007026413A1 (en) | 2008-12-11 |
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OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8110 | Request for examination paragraph 44 | ||
R016 | Response to examination communication | ||
R018 | Grant decision by examination section/examining division | ||
R020 | Patent grant now final | ||
R020 | Patent grant now final |
Effective date: 20150411 |
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R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |