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EP1781565B1 - Locking device for a quick-action connection coupling - Google Patents

Locking device for a quick-action connection coupling Download PDF

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Publication number
EP1781565B1
EP1781565B1 EP05763244A EP05763244A EP1781565B1 EP 1781565 B1 EP1781565 B1 EP 1781565B1 EP 05763244 A EP05763244 A EP 05763244A EP 05763244 A EP05763244 A EP 05763244A EP 1781565 B1 EP1781565 B1 EP 1781565B1
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EP
European Patent Office
Prior art keywords
lever
locking
quick
locking device
hand
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 - Lifetime
Application number
EP05763244A
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German (de)
French (fr)
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EP1781565A1 (en
Inventor
Erwin Weh
Wolfgang Weh
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Individual
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Individual
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/06—Details or accessories
    • B67D7/42—Filling nozzles
    • B67D7/44—Filling nozzles automatically closing
    • B67D7/50—Filling nozzles automatically closing and provided with an additional hand lever
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0376—Dispensing pistols

Definitions

  • the invention relates to a locking device for a quick-connect coupling according to the preamble features of claim 1 and as shown in DE 1185938 B known.
  • the applicant also shows a quick-connect coupling, wherein a plurality of valves are provided to ensure a secure connection until the complete production of the compound.
  • These valves are switched after applying the quick-connect coupling in a certain predetermined order, first the exhaust valve is opened, then upon further movement of a control lever as an actuator, the collets are closed and finally the inlet valve is opened.
  • the power requirement is still relatively high, which also applies to the locking and unlocking.
  • this creates a secure connection option the handling of this clutch is still getting used to, especially for gas station customers who expect a conventional fuel nozzle, since in addition to attaching the clutch, the actuation of the control lever is required, so that a one-handed operation is hardly possible.
  • the invention has for its object to provide a locking device for a quick-connect coupling of the type mentioned above, which allows a simple, safe and very simple and power-saving handling with a simple structure.
  • the proposed locking device is characterized by a particularly simple operation, which is also very safe.
  • the connection or the release of the quick-release coupling with a corresponding unlocking similar to a usual petrol refueling nozzle is performed, namely by simple manual one-handed operation.
  • This is particularly important for reasons of market acceptance of natural gas filling stations, because customers have virtually no need to change to unlock this coupling after the filling process and uncouple.
  • the proposed locking device is suitable for various connections or nipples. By integrated into the handrail release lever, which acts on the similarly designed locking lever at the end of the hand lever, a power-saving and secure release is achieved in a kind of one-handed operation.
  • the operator need not or hardly be implemented when one or preferably two pins abkragen laterally from the release lever.
  • the unlocking of the locking element for both right and left-handed is readily possible.
  • the hand lever of nozzles is known per se, so that in a simple manner, a safe and fast one-handed operation of the quick-connect coupling is made possible, the tanker of the operation is basically known.
  • Fig. 1 is an embodiment of a quick connector 10 for connection to a nipple 30 (see. Fig. 2 ).
  • the quick connector 10 has a tubular, cranked housing 11 or interconnected housing parts, in which case the right side serves as an inlet 12 and the left side as an outlet 13 for the forwarding of the fluid to be transferred to the connection nipple 30.
  • the inlet 12 to the housing 11 has a Connection adapter 14, which can be connected to a hose or a pipe for supplying the fluid to be transferred.
  • the connection adapter 14 can be designed in this case in adaptation to the fluid to be transferred, in particular to the respective desired feed angle, passage cross sections, etc.
  • connection adapter 14 On the opposite end of the connection adapter 14, namely the outlet 13, a plurality of tube-shaped, elongated collets 15 are preferably provided as locking elements (see. Fig. 2 ), which are spread radially outwards just before plugging onto the connecting nipple 30, as is shown for example in US Pat WO-A-93/20378 the applicant is shown.
  • the elongated collets 15, generally three or six, are hooked at their right end here to an annular groove 11a of the housing 11 and biased by an annular spring 16. At the here left end on the inwardly cranked surface, the collets 15 each adapted to the connection nipple 30 engagement profiles 17.
  • a sliding sleeve 18 which is mounted on the cylindrical outer surface of the housing 11 in the manner of a rotary feedthrough and can be axially advanced with an actuator 1 in the direction of the connecting nipple 30, as will be described below.
  • the sliding sleeve 18 in this case has an extension 20 which allows the actuator 1 in the central region of the quick connector 10 toward the axial displacement of the sliding sleeve 18, whereby the collets 15 are locked in the connection position.
  • a sealing piston 22 is guided on the inner surface of the housing 11 located towards the outlet 13. This is sealed with a plurality of sealing rings 24 used at the front end of the housing 11 so that the gaseous and / or liquid fluid flowing along the central axis of the quick-connect coupling 10 can not escape to the outside.
  • exhaust valve 25 Of importance is also a centrally mounted in the housing 11 exhaust valve 25.
  • the outlet valve 25 is in this case acted upon by a compression spring 28 which is guided in the housing 11.
  • the outlet valve 25 ensures that until shortly before the Connection of the quick connector 10 to the nipple 30 the fluid supplied through the connection adapter 14 can not escape even when the connection tap on the refueling system is open.
  • the outlet valve 25 is axially displaced when plugging the quick connector 10 on the connecting nipple 30 from the sealing piston 22 and in this case the exhaust valve 25 is opened. In this case, however, an inlet valve 35 of the quick-connect coupling 10 is still closed, which is then opened only in the further sequence by the actuating device 1 or an associated slide 41, as described below.
  • a sliding ring 40 is also guided, which is acted upon by a lever mechanism 42, which also controls the above-mentioned slider 41.
  • the lever mechanism 42 includes a hand lever 50 (within a hand strap 45) which engages after pulling up or pivoting about the axis 51 in the position shown here with a locking lever 44 at the end of the hand lever 50 on the hand strap 45.
  • a locking in the form of a locking bolt 44 ' is provided to lock the hand lever 50 in this locked refueling position.
  • the in 3 and 4 is shown enlarged.
  • Fig. 3 is the end portion of the hand lever 50 shown enlarged, on which the locking lever 44 is pivotally mounted and when pulling up under spring pressure on the locking bolt 44 'engages.
  • the angle-shaped unlocking lever 46 is renewably mounted, namely on the upper leg of a clamp 49 (cf. Fig. 4 ).
  • two pins 47 are provided, on which the release lever 46 (by grasping with two fingers or only by pressure with a finger / thumb) can be pivoted clockwise.
  • the release lever 46 by grasping with two fingers or only by pressure with a finger / thumb
  • the hand lever 50 can be pivoted within the hand bracket 45 down to finally remove the clutch 10.
  • the release lever 46 is mounted on the pins 47 and conveniently protected in the handrail 45 and space-saving integrated therein.
  • the above-mentioned bracket 49 fulfills a dual purpose, namely on the one hand, the storage of the unlocking lever 46 and on the other the formation of the locking bolt 44 ', on which the locking lever 44 engages when pulling the hand lever and thus locks the lever mechanism.
  • the laterally slightly projecting pins 47 are well protected in the transition region from the handrail 45 to the handle or its casing 80, but still reach well from the fingers on the casing 80, so that the release lever 46 can be pivoted in the manner of a one-hand operation, at the end of the refueling process to release the lock 44/44 '.
  • Fig. 2 serves the slide 41 is not only provided for the controlled opening of the inlet valve 35, but also for actuating a vent valve arranged therebetween 60.
  • This venting valve 60 which is likewise co-actuated by the slide 41, also facilitates the uncoupling, as a result of which a defined pressure reduction can take place.
  • this can not only be angled or bent as in this case, but also bent or straight, provided that with these dimensions of the release lever 46, the essential force translation of the manual force (at the pin 47) is achieved to the Lock lever 44 with the least possible effort to bring out of the locking engagement. So wedge surfaces or ramps can be beneficial to achieve a large power transmission.
  • This translation is also influenced by the lengths of the levers on the release lever 46 (distance between pivot point and tapping point) to release the quick release coupling 10 and thus returning to the connection position the locking lever 44 at the end of the hand lever 50 as effortlessly release from the locking engagement.
  • the hand lever 50 down towards
  • the sliding sleeve 18 is withdrawn.
  • the collets 15 can again radially outward spread open to let follow the sliding ring 40 axially to the right here.
  • the exhaust valve 25 is also closed in the manner of a sequential control.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Lock And Its Accessories (AREA)

Description

Die Erfindung betrifft eine Verriegelungsvorrichtung für eine Schnellanschlusskupplung gemäß den oberbegrifflichen Merkmalen des Anspruches 1 und wie aus der DE 1185938 B bekannt.The invention relates to a locking device for a quick-connect coupling according to the preamble features of claim 1 and as shown in DE 1185938 B known.

Bei derartigen Schnellanschlusskupplungen (z.B. gemäß der DE 33 13 258 ) soll eine sichere und schnelle Anschließbarkeit zur Fahrzeugbetankung erreicht werden.In such quick-connect couplings (eg according to the DE 33 13 258 ) should be achieved a safe and fast connectivity for vehicle refueling.

Besonders wichtig ist hierbei die einfache, problemlose Bedienbarkeit der Schnellanschlusskupplung, so dass auch bei ungünstigen Bedingungen oder technisch weniger begabten Personen eine problemlose Handhabung ermöglicht wird. Zur Verriegelung eines dazu dienenden Handhebels wird in der vorstehenden Druckschrift ein Rastmechanismus am Handbügel gezeigt, der jedoch nur mit relativ hohem Kraftaufwand zu entriegeln ist.Particularly important here is the simple, easy operation of the quick-connect coupling, so that even in unfavorable conditions or technically less talented people easy handling is possible. To lock a serving hand lever a locking mechanism on the hand strap is shown in the above document, which is unlocked only with relatively high effort.

In der WO 98/04866 des Anmelders ist zudem eine Schnellanschlusskupplung gezeigt, wobei mehrere Ventile vorgesehen sind, um ein sicheres Anschließen bis zur vollständigen Herstellung der Verbindung zu gewährleisten. Diese Ventile werden dabei nach Ansetzen der Schnellanschlusskupplung in einer bestimmten vorgegebenen Reihenfolge geschaltet, wobei zuerst das Auslassventil geöffnet wird, dann bei weiterer Bewegung eines Steuerungshebels als Betätigungsvorrichtung die Spannzangen geschlossen werden und schließlich das Einlassventil geöffnet wird. Der Kraftbedarf ist hier noch relativ hoch, was auch für die Ver- und Entriegelung gilt. Obwohl hierdurch eine sichere Anschlussmöglichkeit geschaffen wird, ist die Handhabung dieser Kupplung noch relativ gewöhnungsbedürftig, insbesondere für Tankstellenkunden die eine übliche Zapfpistole erwarten, da neben dem Aufstecken der Kupplung das Betätigen des Steuerungshebels erforderlich ist, so dass eine Einhand-Bedienung kaum möglich ist.In the WO 98/04866 the applicant also shows a quick-connect coupling, wherein a plurality of valves are provided to ensure a secure connection until the complete production of the compound. These valves are switched after applying the quick-connect coupling in a certain predetermined order, first the exhaust valve is opened, then upon further movement of a control lever as an actuator, the collets are closed and finally the inlet valve is opened. The power requirement is still relatively high, which also applies to the locking and unlocking. Although this creates a secure connection option, the handling of this clutch is still getting used to, especially for gas station customers who expect a conventional fuel nozzle, since in addition to attaching the clutch, the actuation of the control lever is required, so that a one-handed operation is hardly possible.

Demzufolge liegt der Erfindung die Aufgabe zugrunde, eine Verriegelungsvorrichtung für eine Schnellanschlusskupplung der eingangs genannten Art zu schaffen, die bei einfachem Aufbau eine sichere, besonders einfache und kräftesparende Handhabung ermöglicht.Accordingly, the invention has for its object to provide a locking device for a quick-connect coupling of the type mentioned above, which allows a simple, safe and very simple and power-saving handling with a simple structure.

Diese Aufgabe wird gelöst durch eine Verriegelungsvorrichtung gemäß den Merkmalen des Anspruches 1. Bevorzugte Weiterbildungen der Erfindung sind Gegenstand der Unteransprüche.This object is achieved by a locking device according to the features of claim 1. Preferred developments of the invention are the subject of the dependent claims.

Die vorgeschlagene Verriegelungsvorrichtung zeichnet sich durch eine besonders einfache Bedienung aus, die zudem besonders sicher ist. Insbesondere für die Betankung eines Fahrzeuges mit Erdgas wird hierbei der Anschluss bzw. das Lösen der Schnellanschlusskupplung mit entsprechender Entriegelung ähnlich wie bei einer von der Benzinbetankung gewohnten Zapfpistole durchgeführt, nämlich durch einfache manuelle Einhand-Bedienung. Dies ist insbesondere aus Gründen der Marktakzeptanz von Erdgastankstellen wichtig, da sich die Kunden praktisch kaum umstellen müssen, um diese Anschlusskupplung nach dem Füllvorgang zu entriegeln und abzukuppeln. Es sei darauf hingewiesen, dass sich die vorgeschlagene Verriegelungsvorrichtung für verschiedene Anschlüsse oder Anschlussnippel eignet. Durch den in den Handbügel integrierten Entriegelungshebel, der auf den ähnlich ausgebildeten Verriegelungshebel am Ende des Handhebels wirkt, wird eine kraftsparende und sichere Entriegelung in einer Art Einhandbedienung erreicht. Dabei braucht die Bedienhand nicht oder kaum umgesetzt zu werden, wenn ein oder bevorzugt zwei Zapfen seitlich vom Entriegelungshebel abkragen. Dabei ist die Entriegelung des Verriegelungselements sowohl für Rechts- als auch Linkshänder ohne weiteres möglich. Von Bedeutung bei dieser Art der Verriegelungsvorrichtung ist auch, dass der Handhebel von Zapfpistolen an sich bekannt ist, so dass auf einfache Weise eine sichere und schnelle Einhand-Bedienung der Schnellanschlusskupplung ermöglicht wird, wobei dem Tankkunde der Betätigungsablauf grundsätzlich bekannt ist.The proposed locking device is characterized by a particularly simple operation, which is also very safe. In particular, for the refueling of a vehicle with natural gas in this case the connection or the release of the quick-release coupling with a corresponding unlocking similar to a usual petrol refueling nozzle is performed, namely by simple manual one-handed operation. This is particularly important for reasons of market acceptance of natural gas filling stations, because customers have virtually no need to change to unlock this coupling after the filling process and uncouple. It should be noted that the proposed locking device is suitable for various connections or nipples. By integrated into the handrail release lever, which acts on the similarly designed locking lever at the end of the hand lever, a power-saving and secure release is achieved in a kind of one-handed operation. In this case, the operator need not or hardly be implemented when one or preferably two pins abkragen laterally from the release lever. The unlocking of the locking element for both right and left-handed is readily possible. Significant in this type of locking device is also that the hand lever of nozzles is known per se, so that in a simple manner, a safe and fast one-handed operation of the quick-connect coupling is made possible, the tanker of the operation is basically known.

Nachfolgend wird ein Ausführungsbeispiel anhand der beiliegenden Zeichnungen näher erläutert und beschrieben. Hierin zeigen:

Fig. 1
eine Seitenansicht einer Schnellanschlusskupplung für einen Tankanschluss;
Fig. 2
eine Darstellung der Schnellanschlusskupplung gemäß Fig. 1 im Längsschnitt;
Fig. 3
eine vergrößerte Darstellung des Übergangsbereichs A in Fig. 2; und
Fig. 4
eine Perspektivdarstellung gemäß Fig. 3.
Hereinafter, an embodiment will be explained and described in more detail with reference to the accompanying drawings. Herein show:
Fig. 1
a side view of a quick connector for a tank connection;
Fig. 2
a representation of the quick-connect coupling according to Fig. 1 in longitudinal section;
Fig. 3
an enlarged view of the transition region A in Fig. 2 ; and
Fig. 4
a perspective view according to Fig. 3 ,

In Fig. 1 ist ein Ausführungsbeispiel einer Schnellanschlusskupplung 10 zum Anschluss an einen Anschlussnippel 30 (vgl. Fig. 2) gezeigt. Die Schnellanschlusskupplung 10 weist ein rohrförmiges, abgekröpftes Gehäuse 11 bzw. miteinander verbundene Gehäuseteile auf, wobei hier die rechte Seite als Einlass 12 dient und die linke Seite als Auslass 13 für die Weiterleitung des zu übertragenden Fluids an den Anschlussnippel 30. Der Einlass 12 zu dem Gehäuse 11 weist einen Anschlussadapter 14 auf, der an einen Schlauch oder eine Rohrleitung zur Zuführung des zu übertragenden Fluids angeschlossen werden kann. Der Anschlussadapter 14 kann hierbei in Anpassung an das zu übertragende Fluid, insbesondere an die jeweils gewünschten Zuführwinkel, Durchlassquerschnitte usw. gestaltet sein.In Fig. 1 is an embodiment of a quick connector 10 for connection to a nipple 30 (see. Fig. 2 ). The quick connector 10 has a tubular, cranked housing 11 or interconnected housing parts, in which case the right side serves as an inlet 12 and the left side as an outlet 13 for the forwarding of the fluid to be transferred to the connection nipple 30. The inlet 12 to the housing 11 has a Connection adapter 14, which can be connected to a hose or a pipe for supplying the fluid to be transferred. The connection adapter 14 can be designed in this case in adaptation to the fluid to be transferred, in particular to the respective desired feed angle, passage cross sections, etc.

Auf der dem Anschlussadapter 14 gegenüberliegenden Stirnseite, nämlich dem Auslass 13, sind bevorzugt mehrere in Rohrform angeordnete, längliche Spannzangen 15 als Verriegelungselemente vorgesehen (vgl. Fig. 2), die kurz vor dem Aufstecken auf den Anschlussnippel 30 radial nach außen aufgespreizt sind, wie dies beispielsweise in der WO-A-93/20378 des Anmelders dargestellt ist. Die länglichen Spannzangen 15, im allgemeinen drei oder sechs, sind an ihrem hier rechten Ende an einer Ringnut 11a des Gehäuses 11 eingehängt und durch eine Ringfeder 16 vorgespannt. An dem hier linken Ende an der nach innen abgekröpftem Fläche weisen die Spannzangen 15 jeweils an den Anschlussnippel 30 angepasste Eingriffsprofile 17 auf.On the opposite end of the connection adapter 14, namely the outlet 13, a plurality of tube-shaped, elongated collets 15 are preferably provided as locking elements (see. Fig. 2 ), which are spread radially outwards just before plugging onto the connecting nipple 30, as is shown for example in US Pat WO-A-93/20378 the applicant is shown. The elongated collets 15, generally three or six, are hooked at their right end here to an annular groove 11a of the housing 11 and biased by an annular spring 16. At the here left end on the inwardly cranked surface, the collets 15 each adapted to the connection nipple 30 engagement profiles 17.

Um die Spannzangen 15 herum ist eine Schiebehülse 18 vorgesehen, die an dem zylindrischen Außenmantel des Gehäuses 11 in Art einer Drehdurchführung gelagert ist und mit einer Betätigungsvorrichtung 1 in Richtung zum Anschlussnippel 30 axial vorgeschoben werden kann, wie dies untenstehend beschrieben wird. Die Schiebehülse 18 weist hierbei eine Verlängerung 20 auf, die zur Betätigungsvorrichtung 1 im mittleren Bereich der Schnellanschlusskupplung 10 hin die Axialverschiebung der Schiebehülse 18 ermöglicht, wodurch die Spannzangen 15 in der Anschlussstellung arretiert werden. Wie im Längsschnitt der Fig. 2 gezeigt, ist an der zum Auslass 13 hin gelegenen Innenfläche des Gehäuses 11 ein Dichtkolben 22 geführt. Dieser ist mit mehreren am vorderen Ende des Gehäuses 11 eingesetzten Dichtungsringen 24 abgedichtet, so dass das entlang der Zentralachse der Schnellanschlusskupplung 10 strömende gasförmige und/oder flüssige Fluid nicht nach außen hin austreten kann.To the collets 15 around a sliding sleeve 18 is provided, which is mounted on the cylindrical outer surface of the housing 11 in the manner of a rotary feedthrough and can be axially advanced with an actuator 1 in the direction of the connecting nipple 30, as will be described below. The sliding sleeve 18 in this case has an extension 20 which allows the actuator 1 in the central region of the quick connector 10 toward the axial displacement of the sliding sleeve 18, whereby the collets 15 are locked in the connection position. As in the longitudinal section of the Fig. 2 A sealing piston 22 is guided on the inner surface of the housing 11 located towards the outlet 13. This is sealed with a plurality of sealing rings 24 used at the front end of the housing 11 so that the gaseous and / or liquid fluid flowing along the central axis of the quick-connect coupling 10 can not escape to the outside.

Von Bedeutung ist weiterhin ein zentral im Gehäuse 11 gelagertes Auslassventil 25. Das Auslassventil 25 ist hierbei von einer Druckfeder 28 beaufschlagt, die im Gehäuse 11 geführt ist. Durch dieses Auslassventil 25 wird sichergestellt, dass bis kurz vor dem Anschluss der Schnellanschlusskupplung 10 an den Anschlussnippel 30 das durch den Anschlussadapter 14 zugeführte Fluid auch bei geöffnetem Anschlusshahn an der Betankungsanlage nicht ausströmen kann. Das Auslassventil 25 wird beim Aufstecken der Schnellanschlusskupplung 10 auf den Anschlussnippel 30 vom Dichtkolben 22 axial verschoben und hierbei das Auslassventil 25 geöffnet. Hierbei ist jedoch noch ein Einlassventil 35 der Schnellanschlusskupplung 10 geschlossen, das dann erst in der weiteren Abfolge von der Betätigungsvorrichtung 1 bzw. einem zugehörigen Schieber 41 geöffnet wird, wie untenstehend beschrieben.Of importance is also a centrally mounted in the housing 11 exhaust valve 25. The outlet valve 25 is in this case acted upon by a compression spring 28 which is guided in the housing 11. By this exhaust valve 25 ensures that until shortly before the Connection of the quick connector 10 to the nipple 30 the fluid supplied through the connection adapter 14 can not escape even when the connection tap on the refueling system is open. The outlet valve 25 is axially displaced when plugging the quick connector 10 on the connecting nipple 30 from the sealing piston 22 and in this case the exhaust valve 25 is opened. In this case, however, an inlet valve 35 of the quick-connect coupling 10 is still closed, which is then opened only in the further sequence by the actuating device 1 or an associated slide 41, as described below.

Am Außenumfang des Gehäuses 11 ist zudem ein Schiebering 40 geführt, der über einen Hebelmechanismus 42 beaufschlagt wird, welcher zudem den vorstehend genannten Schieber 41 steuert. Der Hebelmechanismus 42 umfasst einen Handhebel 50 (innerhalb eines Handbügels 45), der nach Hochziehen bzw. Hochschwenken um die Achse 51 in die hier gezeigte Stellung mit einem Verriegelungshebel 44 am Ende des Handhebels 50 am Handbügel 45 einrastet. Im Innern des Handbügels 45 ist dabei eine Verrastung in Form eines Rastbolzens 44' vorgesehen, um den Handhebel 50 in dieser verriegelten Betankungsposition zu arretieren. Von besonderer Bedeutung in ein im Übergangsbereich A der Fig. 2 angeordneter Entriegelungshebel 46, der in Fig. 3 und 4 vergrößert gezeigt ist. Mit diesem Entriegelungshebel 46 wird zum Abkuppeln dann die Verrastung zwischen Rastbolzen 44' und Verriegelungshebels 44 gelöst (vgl. Fig. 3), so dass sich dann der Handhebel 50 um dessen Achse 51 (hier im Uhrzeigersinn) nach unten bewegen kann, wobei die damit gekoppelten Bauteile des Hebelmechanismus 42 und der vorstehenden Ventile folgen.On the outer circumference of the housing 11, a sliding ring 40 is also guided, which is acted upon by a lever mechanism 42, which also controls the above-mentioned slider 41. The lever mechanism 42 includes a hand lever 50 (within a hand strap 45) which engages after pulling up or pivoting about the axis 51 in the position shown here with a locking lever 44 at the end of the hand lever 50 on the hand strap 45. In the interior of the hand strap 45 while a locking in the form of a locking bolt 44 'is provided to lock the hand lever 50 in this locked refueling position. Of particular importance in transitional area A of Fig. 2 arranged unlocking lever 46, the in 3 and 4 is shown enlarged. With this release lever 46, the locking between locking pin 44 'and locking lever 44 is then released for uncoupling (see. Fig. 3 ), so that then the hand lever 50 about its axis 51 (here clockwise) can move down, with the coupled components of the lever mechanism 42 and the protruding valves follow.

In Fig. 3 ist der Endbereich des Handhebels 50 vergrößert dargestellt, an dem der Verriegelungshebel 44 schwenkbar angeordnet ist und beim Hochziehen unter Federdruck am Rastbolzen 44' einrastet. Im Handbügel 45 ist neuerungsgemäß der winkelförmige Entriegelungshebel 46 gelagert, nämlich an dem oberen Schenkel einer Klammer 49 (vgl. auch Fig. 4). Am oberen Ende des Entriegelungshebels 46 sind zwei Zapfen 47 vorgesehen, an denen der Entriegelungshebel 46 (durch Greifen mit zwei Fingern oder nur durch Druck mit einem Finger/Daumen) im Uhrzeigersinn geschwenkt werden kann. Hierdurch wird der vorher eingerastete Verriegelungshebel 44 aus seiner Verrastung am Rastbolzen 44' gedrückt, der bevorzugt durch den unteren Schenkel der Klammer 49 gebildet ist. Somit kann dann der Handhebel 50 innerhalb des Handbügels 45 nach unten verschwenkt werden, um die Kupplung 10 schließlich abzunehmen.In Fig. 3 is the end portion of the hand lever 50 shown enlarged, on which the locking lever 44 is pivotally mounted and when pulling up under spring pressure on the locking bolt 44 'engages. In the hand strap 45, the angle-shaped unlocking lever 46 is renewably mounted, namely on the upper leg of a clamp 49 (cf. Fig. 4 ). At the upper end of Entriegelungshebels 46 two pins 47 are provided, on which the release lever 46 (by grasping with two fingers or only by pressure with a finger / thumb) can be pivoted clockwise. As a result, the previously latched locking lever 44 is pressed out of its latching on the locking bolt 44 ', which is preferably formed by the lower leg of the bracket 49. Thus, then, the hand lever 50 can be pivoted within the hand bracket 45 down to finally remove the clutch 10.

Wie in Fig. 4 dreidimensional dargestellt, ist der Entriegelungshebel 46 über die Zapfen 47 griffgünstig und gut geschützt im Handbügel 45 gelagert sowie platzsparend darin integriert. Die vorstehend erwähnte Klammer 49 erfüllt dabei einen Doppelnutzen, nämlich zum einen die Lagerung des Entriegelungshebels 46 und zum anderen die Bildung des Rastbolzens 44', an dem der Verriegelungshebel 44 beim Hochziehen des Handhebels einrastet und somit den Hebelmechanismus verriegelt. Die seitlich etwas auskragenden Zapfen 47 sind dabei gut geschützt im Übergangsbereich vom Handbügel 45 zum Handgriff bzw. seiner Ummantelung 80 angeordnet, jedoch von den Fingern an der Ummantelung 80 noch gut zu erreichen, so dass der Entriegelungshebel 46 in Art einer Einhandbetätigung verschwenkt werden kann, um am Ende des Tankvorganges die Verriegelung 44/44' zu lösen.As in Fig. 4 shown in three dimensions, the release lever 46 is mounted on the pins 47 and conveniently protected in the handrail 45 and space-saving integrated therein. The above-mentioned bracket 49 fulfills a dual purpose, namely on the one hand, the storage of the unlocking lever 46 and on the other the formation of the locking bolt 44 ', on which the locking lever 44 engages when pulling the hand lever and thus locks the lever mechanism. The laterally slightly projecting pins 47 are well protected in the transition region from the handrail 45 to the handle or its casing 80, but still reach well from the fingers on the casing 80, so that the release lever 46 can be pivoted in the manner of a one-hand operation, at the end of the refueling process to release the lock 44/44 '.

Wie vorstehend im Zusammenhang mit Fig. 2 erwähnt, dient dabei der Schieber 41 nicht nur zur gesteuerten Öffnung des Einlassventils 35 vorgesehen, sondern ebenfalls zur Betätigung eines dazwischen angeordneten Entlüftungsventils 60. Dieses führt über eine im Gehäuse 11 angeordnete Bohrung 61 (vgl. Fig. 2) zu einem Entlüftungsanschluss 70, so dass in der Anschlusskupplung 10 verbleibendes Gas zurückgeführt werden kann. Dieses von dem Schieber 41 ebenfalls mitbetätigte Entlüftungsventil 60 erleichtert zudem das Abkuppeln, da hierdurch ein definierter Druckabbau erfolgen kann.As related to above Fig. 2 mentioned here, serves the slide 41 is not only provided for the controlled opening of the inlet valve 35, but also for actuating a vent valve arranged therebetween 60. This leads via a housing 11 arranged in the bore 61 (see. Fig. 2 ) to a vent port 70 so that gas remaining in the port 10 can be returned. This venting valve 60, which is likewise co-actuated by the slide 41, also facilitates the uncoupling, as a result of which a defined pressure reduction can take place.

Hinsichtlich der Form des Entriegelungshebels 46 kann dieser, nicht nur wie hier abgewinkelt oder abgekröpft sein, sondern auch gebogen oder gerade verlaufen, sofern mit diesen Dimensionierungen des Entriegelungshebels 46 die hier wesentliche Kraftübersetzung der manuellen Kraft (an den Zapfen 47) erzielt wird, um den Verriegelungshebel 44 mit möglichst geringem Kraftaufwand aus dem Rasteingriff zu bringen. So können auch Keilflächen oder Rampen von Vorteil sein, um eine große Kraftübersetzung zu erreichen.With regard to the shape of the unlocking lever 46, this can not only be angled or bent as in this case, but also bent or straight, provided that with these dimensions of the release lever 46, the essential force translation of the manual force (at the pin 47) is achieved to the Lock lever 44 with the least possible effort to bring out of the locking engagement. So wedge surfaces or ramps can be beneficial to achieve a large power transmission.

Diese Übersetzung wird auch durch die Längen der Hebel am Entriegelungshebel 46 (Abstand zwischen Drehpunkt und Abgriffspunkt) beeinflußt, um zum Lösen der Schnellanschlusskupplung 10 und damit dem Zurückführen in die Anschlussstellung den Verriegelungshebel 44 am Ende des Handhebels 50 möglichst kraftsparend aus den Rasteingriff zu lösen. Nach einem kurzen Verschwenkweg wird somit zunächst der Handhebel 50 (nach unten hin) freigegeben, wodurch letztlich die Schiebehülse 18 zurückgezogen wird. Damit können die Spannzangen 15 sich wieder radial nach außen aufspreizen, um den Schiebering 40 axial hier nach rechts folgen zu lassen. Bevor sich somit der Dichtkontakt zwischen dem Dichtkolben 22 und dem Anschlussnippel 30 löst, wird zudem in Art einer Folgesteuerung das Auslassventil 25 geschlossen. Durch diese praktisch fast gleichzeitige Abfolge wird ein sehr schnelles Schließen der Ein- bzw. Auslassventile 35 und 25 erreicht, so dass kein Fluidvolumen austreten kann. Der Entriegelungshebel 46 zusammen mit seiner Hebelübersetzung erlaubt somit ein kraftsparendes, einfaches Abkoppeln der Schnellanschlusskupplung 10 in Einhandbedienung.This translation is also influenced by the lengths of the levers on the release lever 46 (distance between pivot point and tapping point) to release the quick release coupling 10 and thus returning to the connection position the locking lever 44 at the end of the hand lever 50 as effortlessly release from the locking engagement. After a short Verschwenkweg thus first the hand lever 50 (down towards) is released, which ultimately the sliding sleeve 18 is withdrawn. Thus, the collets 15 can again radially outward spread open to let follow the sliding ring 40 axially to the right here. Before thus the sealing contact between the sealing piston 22 and the connecting nipple 30 dissolves, the exhaust valve 25 is also closed in the manner of a sequential control. By this almost almost simultaneous sequence a very fast closing of the inlet and outlet valves 35 and 25 is achieved, so that no fluid volume can escape. The release lever 46 together with its leverage thus allows a power-saving, easy uncoupling of the quick connector 10 in one-handed operation.

Claims (5)

  1. Locking device for a quick-action connection coupling for transferring gaseous and/or liquid fluids, especially for refueling vehicles, comprising a hand lever for actuating a valve and a lock which is positioned on the end side thereof and engages with a hand grip in the refueling position, wherein an unlocking lever (46) which can be pivoted on the hand grip (45) is mounted adjacent to the end region of the hand lever (50),
    characterized in that
    the unlocking lever (46) comprises at least one, preferably two laterally protruding journals (47), arranged inside the hand grip (45).
  2. Locking device according to claim 1,
    characterized in that
    the lock on the hand lever (50) on the end side comprises a locking lever (44) which can be latched into a locking pin (44') on the hand grip (45).
  3. Locking device according to claim 1 or 2,
    characterized in that
    the unlocking lever (46) is arranged as a cranked angle lever.
  4. Locking device according to one of the claims 1 to 3,
    characterized in that
    the journals (47) are arranged in the transitional region (A) of the hand grip (45) relative to a casing (80) of the quick-action connection coupling (10).
  5. Locking device according to one of the claims 2 to 4,
    characterized in that
    the locking lever (46) is held in a swivelable manner on a leg of a clamp (49), whose other leg forms the locking pin (44') of the locking lever (44).
EP05763244A 2004-07-14 2005-07-14 Locking device for a quick-action connection coupling Expired - Lifetime EP1781565B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202004011088U DE202004011088U1 (en) 2004-07-14 2004-07-14 Locking device for a quick-connect coupling
PCT/EP2005/007670 WO2006005618A1 (en) 2004-07-14 2005-07-14 Locking device for a quick-action connection coupling

Publications (2)

Publication Number Publication Date
EP1781565A1 EP1781565A1 (en) 2007-05-09
EP1781565B1 true EP1781565B1 (en) 2009-03-11

Family

ID=34895679

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05763244A Expired - Lifetime EP1781565B1 (en) 2004-07-14 2005-07-14 Locking device for a quick-action connection coupling

Country Status (8)

Country Link
US (1) US8061394B2 (en)
EP (1) EP1781565B1 (en)
JP (1) JP5135631B2 (en)
CN (1) CN101044087B (en)
BR (1) BRPI0513378B1 (en)
DE (2) DE202004011088U1 (en)
RU (1) RU2382733C2 (en)
WO (1) WO2006005618A1 (en)

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Also Published As

Publication number Publication date
BRPI0513378A (en) 2008-05-06
JP5135631B2 (en) 2013-02-06
RU2382733C2 (en) 2010-02-27
BRPI0513378B1 (en) 2018-02-14
US8061394B2 (en) 2011-11-22
JP2008506896A (en) 2008-03-06
EP1781565A1 (en) 2007-05-09
DE502005006832D1 (en) 2009-04-23
RU2007105504A (en) 2008-08-20
DE202004011088U1 (en) 2005-08-25
US20080223486A1 (en) 2008-09-18
CN101044087A (en) 2007-09-26
CN101044087B (en) 2011-08-03
WO2006005618A1 (en) 2006-01-19

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