WO1984004163A1 - Device for displaying the liquid level in a container - Google Patents

Device for displaying the liquid level in a container Download PDF

Info

Publication number
WO1984004163A1
WO1984004163A1 PCT/DE1984/000084 DE8400084W WO8404163A1 WO 1984004163 A1 WO1984004163 A1 WO 1984004163A1 DE 8400084 W DE8400084 W DE 8400084W WO 8404163 A1 WO8404163 A1 WO 8404163A1
Authority
WO
WIPO (PCT)
Prior art keywords
container
reed relay
liquid level
displaying
float
Prior art date
Application number
PCT/DE1984/000084
Other languages
German (de)
French (fr)
Inventor
Juergen Peczkowski
Original Assignee
Fluidtech Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fluidtech Gmbh filed Critical Fluidtech Gmbh
Publication of WO1984004163A1 publication Critical patent/WO1984004163A1/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
    • G01F23/64—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements
    • G01F23/72—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements using magnetically actuated indicating means
    • G01F23/74—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements using magnetically actuated indicating means for sensing changes in level only at discrete points

Definitions

  • the invention relates to a device according to the preamble of claim 1.
  • a sight glass is used for liquid display and within the transparent, tubular housing, a thermometer and a plate-shaped contrast member assigned to it are accommodated.
  • the invention has for its object to provide a device for displaying the liquid level in a container with which an electrical device can be operated.
  • This object is achieved according to the invention by the features in the characterizing part of claim 1.
  • the permanent magnet housed in the float closes the reed relay at a certain liquid level, which means that an electrical device can be actuated.
  • the intermediate member prevents the electrical device from being adversely affected by the container wall.
  • a connecting piece 6 is attached by means of two banjo bolts 5 and 5a with the interposition of a rubber plate 12, a nut 14, 14a screwed onto one of the hollow bolts 5, 5a and a washer 15, 15a each being located inside the container.
  • the hollow screw 5 has a bore that communicates with the interior of the container and is connected via a transverse bore to a blind bore in a connector 6.
  • a tube piece 7 serving as a housing is plugged onto an extension of the connector 6, the gap between the tube piece 7 and the connector 6 being sealed by an O-ring 16.
  • a protective tube 8 is arranged, on the opposite sides of which the pipe section 7 is present.
  • a reed relay 9 is accommodated, the connecting line 10 of which is connected to a plug 11 attached to the connector at the bottom.
  • the z. B. consists of a plastic hard foam and encloses a permanent magnet 4.
  • the rubber plate 12 is arranged as an intermediate member made of non-magnetic material, which has such a thickness, e.g. B. 6 mm, has that the permanent magnet 4 in the float is not affected by the steel container wall and does not get stuck, but is always carried by the liquid in the pipe section 7.
  • the pipe section 7 and the plate 12 are surrounded by a U-shaped jacket 18, which is also held by the hollow screws 5, 5a. to Sealing the gap between the hollow screw 5 and the connecting piece 6 penetrated thereby serves an O-ring 17.
  • the upper side of the device, which has the hollow screw 5 a, is designed in the same way as the lower one, with the exception of the plug 11.
  • Liquid 2 is accommodated in the container, the mirror 1 of which has a certain height.
  • the position of the float 3 within the pipe section 7 is determined by the height of the liquid level 1, since there is a connection between the interior of the container and the pipe section 7 via the hollow screws 5, 5a and the connecting pieces 6. If the liquid level 1 has a certain height, then the force of the permanent magnet 4 acts within the float 3 in the sense of closing the reed relay 9. An electrical signal reaches the plug 11 via the connecting line 10, from where it passes through a socket (not shown) and reaches an electrical display device via a cable. If the float 3 does not assume a predetermined height, the reed relay is open.
  • the housing 7 is in contact with the protective tube 8 on both sides. This can also be arranged within the housing 7.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Level Indicators Using A Float (AREA)

Abstract

A device for displaying the liquid level in a container comprises a tubular casing (7) connected to the container wherein a display element (3, 4, 9) is arranged. In order to provide a display device for the level of a liquid held by a container, device with which an electric unit may be actuated, the display element comprises a reed relay (9) and a permanent magnet (4) for operating with the latter and carried by a float (3). Between the reed relay and the wall (13) of the container an intermediary element (12) is provided which maintains the reed relay at a sufficient distance from the wall of the container.

Description

"Vorrichtung zur Anzeige des Flüssigkeitsstandes in einem Behälter" "Device for displaying the liquid level in a container"
Die Erfindung bezieht sich auf eine Vorrichtung entsprechend dem Oberbegriff des Anspruches 1.The invention relates to a device according to the preamble of claim 1.
Bei einer bekannten Vorrichtung der vorgenannten Art dient ein Schauglas zur Flüssigkeitsanzeige und innerhalb des durchsichtigen, rohrförmigen Gehäuses sind ein Thermometer und ein diesem zugeordnetes, plattenförmiges Kontrastglied untergebracht.In a known device of the aforementioned type, a sight glass is used for liquid display and within the transparent, tubular housing, a thermometer and a plate-shaped contrast member assigned to it are accommodated.
Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung zur Anzeige des Flüssigkeitsstandes in einem Behälter zu schaffen, mit der eine elektrische Einrichtung betätigt werden kann. Diese Aufgabe wird durch die Merkmale im Kennzeichnungsteil des Anspruches 1 erfindungsgemäß gelost. Der im Schwimmer untergebrachte Dauermagnet schließt bei einem bestimmten Flüssigkeitsstand das Reed-Relais, wodurch eine elektrische Einrichtung betätigt werden kann. Das Zwischenglied verhindert, daß die elektrische Einrichtung von der Behälterwand in nachteiliger Weise beeinflußt wird.The invention has for its object to provide a device for displaying the liquid level in a container with which an electrical device can be operated. This object is achieved according to the invention by the features in the characterizing part of claim 1. The permanent magnet housed in the float closes the reed relay at a certain liquid level, which means that an electrical device can be actuated. The intermediate member prevents the electrical device from being adversely affected by the container wall.
Die Merkmale der Ansprüche 2 und 4 betreffen bevorzugte Weiterbildungen der Erfindung.The features of claims 2 and 4 relate to preferred developments of the invention.
Weitere Vorteile ergeben sich aus der Beschreibung und der Zeichnung. In dieser ist eine Vorrichtung zur Anzeige des Flüssigkeitsstandes in einem Behälter, insbesondere in einem Tank, im Teillängsschnitt als Ausführungsbeispiel des Gegenstandes der Erfindung schematisch dargestellt.Further advantages result from the description and the drawing. In this is a device for displaying the liquid level in one Containers, particularly in a tank, shown schematically in partial longitudinal section as an embodiment of the subject of the invention.
An einer Behälterwand 13 ist ein Anschlußstück 6 mittels zweier Hohlschrauben 5 und 5a unter Zwischenlage einer Gummiplatte 12 angebracht, wobei sich je eine auf eine der Hohischrauben 5, 5a aufgeschraubte Mutter 14, 14a und je eine Unterlagsscheibe 15, 15a im Innern des Behälters befinden. Die Hohlschraube 5 hat eine mit dem Innern des Behälters in Verbindung stehende Bohrung und ist über eine Querbohrung mit einer Sackbohrung in einem Anschlußstück 6 verbunden. Auf einen Ansatz des Anschlußstückes 6 ist ein als Gehäuse dienendes Rohrstück 7 aufgesteckt, wobei der Spalt zwischen dem Rohrstück 7 und dem Anschlußstück 6 durch einen O-Ring 16 abgedichtet ist. Auf der vom Anschlußstück 6 abgewandten Seite des Rohrstückes 7 befindet sich ein von der Hohlschraube 5a in gleicher Weise gehaltenes, umgekehrt angeordnetes, nicht dargestelltes Anschlußstück, dessen Ansatz in das Rohrstück 7 eingesteckt ist, wobei ebenfalls ein O-Ring zur Abdichtung des Spaltes zwischen dem Rohrstück 7 und dem Anschlußstück 5a dient.On a container wall 13, a connecting piece 6 is attached by means of two banjo bolts 5 and 5a with the interposition of a rubber plate 12, a nut 14, 14a screwed onto one of the hollow bolts 5, 5a and a washer 15, 15a each being located inside the container. The hollow screw 5 has a bore that communicates with the interior of the container and is connected via a transverse bore to a blind bore in a connector 6. A tube piece 7 serving as a housing is plugged onto an extension of the connector 6, the gap between the tube piece 7 and the connector 6 being sealed by an O-ring 16. On the side of the pipe section 7 facing away from the connecting piece 6 there is a connecting piece, not shown, held in the same way by the banjo bolt 5a, the reverse of which, the shoulder of which is inserted into the pipe section 7, with an O-ring for sealing the gap between the Pipe section 7 and the connector 5a is used.
Auf seiten der Behälterwand 13 ist ein Schutzrohr 8 angeordnet, an dessen einander gegenüberliegenden Seiten das Rohrstück 7 ansteht. Im Schutzrohr 8 ist ein Reed-Relais 9 untergebracht, dessen Anschlußleitung 10 mit einem am Anschlußstück unten angebrachten Stecker 11 verbunden ist.On the side of the container wall 13, a protective tube 8 is arranged, on the opposite sides of which the pipe section 7 is present. In the protective tube 8, a reed relay 9 is accommodated, the connecting line 10 of which is connected to a plug 11 attached to the connector at the bottom.
Im Rohrstück 7 ist ein Schwimmer 3 untergebracht, der z. B. aus einem Kunststoff hartschaum besteht und einen Dauermagneten 4 umschließt. Zwischen dem Rohrstück 7 und dem Schutzrohr 8 auf der einen Seite und der Behälterwand 13 auf der anderen Seite ist dieGummiplatte 12 als aus nichtmagnetischem Werkstoff bestehendes Zwischenglied angeordnet, die eine solche Dicke, z. B. 6 mm, hat, daß der Dauermagnet 4 im Schwimmer von der aus Stahl bestehenden Behälterwand nicht beeinträchtigt wird und nicht hängen bleibt, sondern stets von der im Rohrstück 7 befindlichen Flüssigkeit getragen wird.In the pipe section 7, a float 3 is housed, the z. B. consists of a plastic hard foam and encloses a permanent magnet 4. Between the tube piece 7 and the protective tube 8 on one side and the container wall 13 on the other side, the rubber plate 12 is arranged as an intermediate member made of non-magnetic material, which has such a thickness, e.g. B. 6 mm, has that the permanent magnet 4 in the float is not affected by the steel container wall and does not get stuck, but is always carried by the liquid in the pipe section 7.
Das Rohrstück 7 und die Platte 12 sind von einem U-fδrmigen Mantel 18 umgeben, welcher ebenfalls von den Hohlschrauben 5, 5a gehalten wird. Zur Abdichtung des Spaltes zwischen der Hohlschraube 5 und dem von dieser durchsetzten Anschlußstück 6 dient ein O-Ring 17. Die obere, die Hohlschraube 5a aufweisende Seite der Vorrichtung ist gleich wie die untere mit Ausnahme des Steckers 11 ausgebildet.The pipe section 7 and the plate 12 are surrounded by a U-shaped jacket 18, which is also held by the hollow screws 5, 5a. to Sealing the gap between the hollow screw 5 and the connecting piece 6 penetrated thereby serves an O-ring 17. The upper side of the device, which has the hollow screw 5 a, is designed in the same way as the lower one, with the exception of the plug 11.
In dem Behälter ist Flüssigkeit 2 untergebracht, deren Spiegel 1 eine bestimmte Höhe hat. Durch die Höhe des Flüssigkeitsspiegels 1 ist die Lage des Schwimmers 3 innerhalb des Rohrstückes 7 bestimmt, da über die Hohlschrauben 5, 5a und die Anschlußstücke 6 eine Verbindung zwischen dem Innern des Behälters und dem Rohrstück 7 besteht. Weist der Flüssigkeitsspiegel 1 eine bestimmte Höhe auf, so wirkt die Kraft des Dauermagneten 4 innerhalb des Schwimmers 3 im Sinne des Schließens des Reed-Relais 9. Über die Anschlußleitung 10 gelangt ein elektrisches Signal zum Stecker 11, von wo es über eine nicht dargestellte Buchse und über ein Kabel zu einer elektrischen Anzeigeeinrichtung gelangt. Nimmt der Schwimmer 3 nicht eine vorbestimmte Höhe ein, so ist das Reed-Relais geöffnet.Liquid 2 is accommodated in the container, the mirror 1 of which has a certain height. The position of the float 3 within the pipe section 7 is determined by the height of the liquid level 1, since there is a connection between the interior of the container and the pipe section 7 via the hollow screws 5, 5a and the connecting pieces 6. If the liquid level 1 has a certain height, then the force of the permanent magnet 4 acts within the float 3 in the sense of closing the reed relay 9. An electrical signal reaches the plug 11 via the connecting line 10, from where it passes through a socket (not shown) and reaches an electrical display device via a cable. If the float 3 does not assume a predetermined height, the reed relay is open.
Beim vorbeschriebenen Ausführungsbeispiel steht das Gehäuse 7 auf beiden Seiten am Schutzrohr 8 an. Dieses kann auch innerhalb des Gehäuses 7 angeordnet sein. In the exemplary embodiment described above, the housing 7 is in contact with the protective tube 8 on both sides. This can also be arranged within the housing 7.

Claims

PatentansprücheClaims
Vorrichtung zur Anzeige des Flüssigkeitsstandes in einem Behälter mit einem mit dem Behälter verbundenen, rohrförmigen Gehäuse (7), in welchem ein Anzeigeorgan (3, 4, 9) untergebracht ist, dadurch gekennzeichnet, daß das Anzeigeorgan ein Reed-Relais (9) und einen mit diesem zusammenwirkenden Dauermagneten (4) hat, der von einem Schwimmer (3) getragen wird, und daß zwischen dem Reed-Relais und der Wand (13) des Behälters ein das Reed-Relais in einem ausreichenden Abstand zur Behälterwand haltendes Zwischenglied (12) vorgesehen ist.Device for displaying the liquid level in a container with a tubular housing (7) connected to the container, in which a display element (3, 4, 9) is accommodated, characterized in that the display element comprises a reed relay (9) and a with this cooperating permanent magnet (4), which is carried by a float (3), and that between the reed relay and the wall (13) of the container an intermediate member (12) holding the reed relay at a sufficient distance from the container wall is provided.
Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Zwischenglied (12) aus einem nichtmagπetischen Werkstoff besteht.Device according to claim 1, characterized in that the intermediate member (12) consists of a non-magnetic material.
Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Zwischenglied ( 12) als aus Gummi bestehende Platte ausgebildet ist.Apparatus according to claim 1 or 2, characterized in that the intermediate member (12) is designed as a plate made of rubber.
Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Schwimmer (3) aus Hartschaum besteht, in den der Dauermagnet (4) eingebettet ist. Device according to one of the preceding claims, characterized in that the float (3) consists of hard foam in which the permanent magnet (4) is embedded.
5. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß ein Schutzrohr (8) des Reed-Relais (9) längs einer Mantellinie des Gehäuses (7) angeordnet ist und daß das Zwischenglied (12) Spalten zwischen dem Schutzrohr und dem Gehäuse abdichtet. 5. Device according to one of the preceding claims, characterized in that a protective tube (8) of the reed relay (9) is arranged along a surface line of the housing (7) and that the intermediate member (12) seals gaps between the protective tube and the housing .
PCT/DE1984/000084 1983-04-08 1984-04-07 Device for displaying the liquid level in a container WO1984004163A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19838310280 DE8310280U1 (en) 1983-04-08 1983-04-08 DEVICE FOR DISPLAYING THE LIQUID LEVEL IN A CONTAINER

Publications (1)

Publication Number Publication Date
WO1984004163A1 true WO1984004163A1 (en) 1984-10-25

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PCT/DE1984/000084 WO1984004163A1 (en) 1983-04-08 1984-04-07 Device for displaying the liquid level in a container

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DE (1) DE8310280U1 (en)
WO (1) WO1984004163A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1046888A1 (en) * 1999-04-15 2000-10-25 FLUTEC Fluidtechnische Geräte GmbH Indicator and/or control device for fluids
US6532815B2 (en) * 2000-06-20 2003-03-18 Oil-Rite Corporation Fluid level verification apparatus
US6758092B2 (en) 2002-10-30 2004-07-06 Oil-Rite Corporation Fluid level verification apparatus
US9557206B2 (en) 2013-10-28 2017-01-31 Oil-Rite Corporation Adjustable fluid level verification apparatus
US10161778B2 (en) 2015-06-08 2018-12-25 Trico Corp. Adjustable sight gauge and drum breather assembly and method of inspecting fluid level with same

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3114478A (en) * 1962-08-23 1963-12-17 Worthington Corp Liquid level measure device
US3389603A (en) * 1966-06-16 1968-06-25 Sonic Eng Corp Liquid level responsive device
FR2045462A5 (en) * 1969-04-23 1971-02-26 Sasserath & Co Kg H
US4168613A (en) * 1975-03-15 1979-09-25 Nisshin Kogyo Kabushiki Kaisha Oil reservoir device with oil level detector means for a tandem type master cylinder
FR2466002A1 (en) * 1979-09-20 1981-03-27 Ferodo Sa Motor vehicle radiator liq. level detector - uses float operated magnetic switch in subsidiary expansion chamber and connected to lamp circuit
US4289451A (en) * 1979-03-30 1981-09-15 National Semiconductor Corporation External tank level control system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3114478A (en) * 1962-08-23 1963-12-17 Worthington Corp Liquid level measure device
US3389603A (en) * 1966-06-16 1968-06-25 Sonic Eng Corp Liquid level responsive device
FR2045462A5 (en) * 1969-04-23 1971-02-26 Sasserath & Co Kg H
US4168613A (en) * 1975-03-15 1979-09-25 Nisshin Kogyo Kabushiki Kaisha Oil reservoir device with oil level detector means for a tandem type master cylinder
US4289451A (en) * 1979-03-30 1981-09-15 National Semiconductor Corporation External tank level control system
FR2466002A1 (en) * 1979-09-20 1981-03-27 Ferodo Sa Motor vehicle radiator liq. level detector - uses float operated magnetic switch in subsidiary expansion chamber and connected to lamp circuit

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1046888A1 (en) * 1999-04-15 2000-10-25 FLUTEC Fluidtechnische Geräte GmbH Indicator and/or control device for fluids
US6532815B2 (en) * 2000-06-20 2003-03-18 Oil-Rite Corporation Fluid level verification apparatus
US6758092B2 (en) 2002-10-30 2004-07-06 Oil-Rite Corporation Fluid level verification apparatus
US6928716B2 (en) 2002-10-30 2005-08-16 Oil-Rite Corporation Method for assembling a multi-piece apparatus
US9557206B2 (en) 2013-10-28 2017-01-31 Oil-Rite Corporation Adjustable fluid level verification apparatus
US10161778B2 (en) 2015-06-08 2018-12-25 Trico Corp. Adjustable sight gauge and drum breather assembly and method of inspecting fluid level with same

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Publication number Publication date
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