WO2024081979A1 - Quick coupling for releasably connecting two cylindrical coupling parts - Google Patents

Quick coupling for releasably connecting two cylindrical coupling parts Download PDF

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Publication number
WO2024081979A1
WO2024081979A1 PCT/AT2023/060128 AT2023060128W WO2024081979A1 WO 2024081979 A1 WO2024081979 A1 WO 2024081979A1 AT 2023060128 W AT2023060128 W AT 2023060128W WO 2024081979 A1 WO2024081979 A1 WO 2024081979A1
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WO
WIPO (PCT)
Prior art keywords
coupling
quick
spring
parts
safety
Prior art date
Application number
PCT/AT2023/060128
Other languages
German (de)
French (fr)
Inventor
Franz LANGGARTNER JUN.
Original Assignee
Langgartner Jun Franz
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 Langgartner Jun Franz filed Critical Langgartner Jun Franz
Publication of WO2024081979A1 publication Critical patent/WO2024081979A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D39/00—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers
    • B65D39/08—Threaded or like closure members secured by rotation; Bushes therefor
    • B65D39/10—Threaded or like closure members secured by rotation; Bushes therefor with bayonet cams
    • 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
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/10—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using a rotary external sleeve or ring on one part
    • F16L37/107—Bayonet-type couplings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/04—Threaded or like caps or cap-like covers secured by rotation
    • B65D41/06—Threaded or like caps or cap-like covers secured by rotation with bayonet cams, i.e. removed by first pushing axially to disengage the cams and then rotating
    • B65D41/065—Threaded or like caps or cap-like covers secured by rotation with bayonet cams, i.e. removed by first pushing axially to disengage the cams and then rotating with integral internal sealing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D45/00—Clamping or other pressure-applying devices for securing or retaining closure members
    • B65D45/02—Clamping or other pressure-applying devices for securing or retaining closure members for applying axial pressure to engage closure with sealing surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D45/00—Clamping or other pressure-applying devices for securing or retaining closure members
    • B65D45/02—Clamping or other pressure-applying devices for securing or retaining closure members for applying axial pressure to engage closure with sealing surface
    • B65D45/04—Clamping or other pressure-applying devices for securing or retaining closure members for applying axial pressure to engage closure with sealing surface comprising U-shaped or bifurcated members coacting with containers these members remaining connected with the closure and with the container when the container is open, e.g. pivoted bails
    • B65D45/08—Clamping or other pressure-applying devices for securing or retaining closure members for applying axial pressure to engage closure with sealing surface comprising U-shaped or bifurcated members coacting with containers these members remaining connected with the closure and with the container when the container is open, e.g. pivoted bails incorporating springs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D45/00—Clamping or other pressure-applying devices for securing or retaining closure members
    • B65D45/02—Clamping or other pressure-applying devices for securing or retaining closure members for applying axial pressure to engage closure with sealing surface
    • B65D45/16—Clips, hooks, or clamps which are removable, or which remain connected either with the closure or with the container when the container is open, e.g. C-shaped
    • B65D45/20—Clips, hooks, or clamps which are removable, or which remain connected either with the closure or with the container when the container is open, e.g. C-shaped pivoted
    • B65D45/22—Clips, hooks, or clamps which are removable, or which remain connected either with the closure or with the container when the container is open, e.g. C-shaped pivoted resilient
    • 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
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/24—Couplings of the quick-acting type in which the connection is made by inserting one member axially into the other and rotating it to a limited extent, e.g. with bayonet action
    • 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
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/24—Couplings of the quick-acting type in which the connection is made by inserting one member axially into the other and rotating it to a limited extent, e.g. with bayonet action
    • F16L37/244—Couplings of the quick-acting type in which the connection is made by inserting one member axially into the other and rotating it to a limited extent, e.g. with bayonet action the coupling being co-axial with the pipe
    • F16L37/248—Bayonet-type couplings
    • 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
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/24—Couplings of the quick-acting type in which the connection is made by inserting one member axially into the other and rotating it to a limited extent, e.g. with bayonet action
    • F16L37/244—Couplings of the quick-acting type in which the connection is made by inserting one member axially into the other and rotating it to a limited extent, e.g. with bayonet action the coupling being co-axial with the pipe
    • F16L37/252—Couplings of the quick-acting type in which the connection is made by inserting one member axially into the other and rotating it to a limited extent, e.g. with bayonet action the coupling being co-axial with the pipe the male part having lugs on its periphery penetrating in the corresponding slots provided in the female part
    • 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
    • F16L55/11—Plugs
    • F16L55/1125—Plugs fixed by rotating a limited amplitude
    • 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
    • F16L55/115—Caps
    • F16L55/1155—Caps fixed by rotating a limited amplitude

Definitions

  • the invention relates to a quick coupling for releasably connecting two cylindrical coupling parts in the direction of their axis of rotation with a bayonet lock.
  • Well-known quick couplings of this type are, for example, fire service couplings, i.e. in particular hose couplings for connecting fire hoses and fittings.
  • the best-known example of these couplings is probably the Storz coupling, a symmetrical hermaphrodite coupling, i.e. the connecting fittings to be coupled are identical on the coupling side and can be connected in any way.
  • the well-known quick couplings are not only used to connect two lines, but can also be used to detachably connect almost any structural element.
  • CH528416A discloses a closure for containers, in particular for jugs, bottles and cans.
  • the closure comprises a seal that presses against the inner wall of the container, the closure having an elastic closure member that is in working connection with an operating element in such a way that the sealing pressure is automatically generated by elastic action.
  • a tensioning mechanism is provided which has an actuator with a helically rising inner shoulder.
  • FR2662427 shows a quick coupling for a bottle, whereby a spring is compressed by pressing down the cap and elastic metal plates engage behind the bottle head. The quick coupling can be released again by turning the cap.
  • a similar quick coupling is known from DE 360756 C, which has a metal hood with a bottle stopper held on it by springs. As soon as the bottle stopper is placed on the upper edge of the bottle mouth, the spring is again compressed by pressing down the metal hood. When fully placed, metal hood attachments again engage behind the bottle head. A clamping ring placed on the conical metal hood secures the metal hood in the closed position and can be released again by turning.
  • the invention is therefore based on the object of specifying a quick coupling of the type described above, which allows a mutual, safe and robust locking of two coupling parts and is easily releasable.
  • the bayonet lock on a coupling part comprises a steep thread running around the longitudinal axis in the coupling direction, to which a thread is attached in the opposite direction to the screwing in direction when A transverse slot is provided running along the coupling and a spring is provided in the coupling area between the two coupling parts which, during coupling, is supported against rotation on both coupling parts in such a way that the spring is tensioned in and around the axis of rotation during the coupling process and secures a coupling attachment provided on the other coupling part, which engages in the steep thread, in the coupling position in the transverse slot.
  • the coupling attachment is effectively connected to the steep thread and the spring is supported on both coupling parts by rotating it around the axis of rotation. If the coupling parts are joined further together in the coupling direction and rotated relative to one another around the axis of rotation by the forced guidance between the coupling attachment and the steep thread, the spring is pressed together in the direction of the axis of rotation on the one hand and tensioned around the axis of rotation on the other. This tensioning around the axis of rotation causes the spring to push the coupling attachment into the transverse slot as soon as the steep thread merges into the transverse slot. This means that the two coupling parts are always held securely in the coupling position.
  • the coupling can only be released again by actively rotating the coupling attachment out of the transverse slot and the spring presses the two coupling parts apart again into their released position.
  • the steep thread can be assigned to the outer or inner casing of the respective coupling part and can be incorporated into the casing surface or raised from it, i.e. protrude.
  • the coupling attachment on the other coupling part is to be designed as a corresponding counterpart and in the simplest case is a pin or similar.
  • the steep thread can be designed with multiple starts. This also allows components with different angular offsets to be mounted to one another.
  • the cross slot is to the axis of rotation, in particular running back against the direction of the coupling. If the transverse slot runs back against the direction of the coupling, this means that the coupling attachment is not only positioned by the spring around the axis of rotation, but also in the direction of the axis of rotation against the end of the transverse slot.
  • the spring is assigned to one of the two clutch parts and is attached to it in a rotationally fixed manner, and if the spring is attached to the other clutch part via an anti-twisting device when coupling. This means that the spring always remains on one of the two clutch parts and cannot be lost.
  • the spring is a coil spring, but any suitable spring can be used that can withstand both pressure and torsion around the axis of rotation.
  • the anti-twisting device can be designed in the form of a claw coupling, in which claw projections on the spring engage in corresponding grooves on the other coupling part.
  • a somewhat more elegant form of anti-twisting device is a claw coupling, in which a clamping plate is attached to the spring, which forms a wave-shaped surface running around the axis of rotation, which engages in corresponding, opposite wave crests and valleys assigned to the other coupling part.
  • the anti-twisting device can also be a type of friction coupling, for example a rubber stopper placed on the front of a bottle or pipe.
  • the anti-twisting device can also be designed in the form of a positive connection, in which the spring is attached to the other coupling part via a profile that deviates from the circular shape.
  • the profile can, for example, have an elliptical or polygonal cross-section.
  • the two coupling parts can be in contact with each other in the coupling position with a seal, in particular a sealing ring, in between.
  • a seal in particular a sealing ring
  • the quick coupling according to the invention is suitable for connecting a wide variety of components, such as for assembling tables, shelves, shaped tube constructions, for setting up obstacle courses and much more.
  • a coupling part can be designed as a closure, in particular as a closure cap or plug, for a component provided with the other coupling part, in particular a liquid container.
  • both coupling parts can be designed as hose or pipe connection couplings, which is particularly advantageous when particularly slim couplings are required.
  • the safety device preferably extends through the radially outer of the two coupling parts and the safety device can be moved with the safety actuation between a safety position protruding towards the radially inner of the two cylindrical coupling parts and a release position lifted away from the radially inner of the two cylindrical coupling parts.
  • the safety device can therefore only be released with a targeted, manual intervention and is protected from the outside, for example against impacts.
  • the safety device In its safety position, the safety device preferably engages in a safety receptacle of the radially inner of the two cylindrical coupling parts.
  • Fig. 1 shows a quick coupling according to the invention in a partially sectioned longitudinal section
  • Fig. 2 shows the quick coupling from Fig. 1 in section along the line ll-ll
  • Fig. 3 a design variant of the quick coupling in a partially sectioned view with the coupling closed
  • Fig. 4 the quick coupling from Fig. 3 in a partially cut longitudinal section with the coupling open
  • Fig. 6 a design variant of the quick coupling in partially sectioned view for connecting fluid lines
  • Fig. 7 another design variant of the quick coupling in partially sectioned exploded view for mounting various components on a shaft
  • Fig. 8 a design variant of a released quick coupling in partially sectioned view with a safety device
  • Fig. 9 the construction variant from Fig. 8 in section along the line IX-IX,
  • Fig. 10 shows the design variant from Fig. 8 with the quick coupling coupled and secured.
  • a quick coupling 1 is described for detachably connecting two cylindrical coupling parts 2, 3 in the direction of their rotation axis 4 with a bayonet lock 5.
  • the bayonet lock 5 comprises a steep thread 6 on a coupling part 2 that runs in the coupling direction around the rotation axis 4, to which a transverse slot 7 is attached that runs opposite to the screwing direction E when coupling.
  • the steep thread 6 and the transverse slot 7 form a hook-shaped Undercut.
  • a spring 8 is provided which is supported against rotation on both coupling parts 2, 3 during coupling in such a way that the spring 8 is tensioned in and around the axis of rotation 4 during the coupling process and secures a coupling attachment 9 provided on the other coupling part 3, which engages in the steep thread 6, in the coupling position in the transverse slot 7.
  • the steep thread 6 is designed with multiple threads. The quick coupling is released in the same way in the opposite direction. The coupling attachment 9 is rotated out of the transverse slot 7 against the force of the spring 8 and the coupling parts 2, 3 are pushed apart again by the spring 8.
  • the transverse slot 7 is aligned transversely to the axis of rotation 4, running back against the direction of rotation of the coupling.
  • the spring 8 is on the one hand assigned to one of the two coupling parts 3 and is fixed to it in a rotationally fixed manner and on the other hand is attached to the other coupling part 2 via an anti-twisting device 10 during coupling.
  • the anti-twisting device can be designed in the manner of a claw coupling, in which claw projections 11 provided on the spring engage in corresponding grooves 12 of the other coupling part.
  • the anti-twisting device can also be designed in the manner of a claw coupling, in which a clamping plate 13 is attached to the spring, which forms a wave-shaped surface running around the axis of rotation 4, which engages in corresponding, opposite wave peaks and valleys assigned to the other coupling part, thus practically corresponding to a face claw coupling.
  • the anti-twisting device can be designed in the form of a positive connection in which the spring is attached to the other coupling part via a profile that deviates from the circular shape, for example elliptical or in the form of a polygon.
  • the two coupling parts 2, 3 rest against each other at the front with a seal 14, in particular a sealing ring, in between.
  • One coupling part 3 can be designed as a closure, in particular as a closure cap or plug, for a component provided with the other coupling part 2, in particular a liquid container. If necessary, both coupling parts 2, 3 can be designed as hose or pipe connection couplings (Fig. 6).
  • Fig. 7 shows a further design variant of the quick coupling according to the invention in a partially sectioned exploded view for mounting various components on a shaft.
  • These components can be flanges, tires and the like, which can be changed quickly and easily with the quick coupling.
  • the anti-twisting device 10 is again designed in the manner of a claw coupling, the anti-twisting device 10 in this case being assigned to a component which forms the coupling part 3, which is to be attached to a shaft, here the coupling part 2.
  • a safety device 15 and a safety actuation 16 can be assigned to the radially outer of the two cylindrical coupling parts 3 in the coupling position, the safety device 15 protruding through the radially outer of the two coupling parts 3 and the safety device 15 can be displaced with the safety actuation 16 between a safety position protruding towards the radially inner of the two cylindrical coupling parts 2 and a release position lifted away from the radially inner of the two cylindrical coupling parts 2.
  • the quick coupling can be secured against accidental release in the coupling position.
  • This safety device can also be provided in an analogous manner in all other embodiments of the invention.
  • a tool or the like is assigned to the coupling part 2, which is positively secured to the coupling part 3 with the safety device against accidental release of the coupling.
  • the fuse 15 engages in a fuse holder
  • the safety receptacle is in particular a bore or the like into which the safety device slides when the quick coupling is closed and in which the safety device is held by means of a coil spring or another suitable spring.
  • the safety actuation 16 can be displaced around and/or in the direction of the rotation axis (4) and has a ramp rising against the actuation direction R
  • Coil spring lifts from the locking position to the release position.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Abstract

The invention relates to a quick coupling (1) for releasably connecting two cylindrical coupling parts (2, 3) in the direction of the rotational axis (4) thereof using a bayonet closure (5). In order to provide advantageous slim design conditions, the invention proposes that, on one coupling part, the bayonet closure comprises a steep thread (6) which runs about the rotational axis (4) in the coupling direction and on which a transverse slot (7) is arranged that runs opposite the screw-in direction (E) when coupling the coupling parts, and a spring (8) is provided in the coupling region between the two coupling parts, said spring being supported in a rotationally fixed manner on both coupling parts (2, 3) during the coupling process such that the spring (8) is clamped in and about the rotational axis (4) during the coupling process and secures a coupling attachment (9), which is provided on the other coupling part and which engages into the steep thread (6), in the transverse slot (7) in the coupled position.

Description

Schnellkupplunq zum lösbaren Verbinden zweier zylinderförmiger Kupplunqsteile Quick coupling for detachable connection of two cylindrical coupling parts
Technisches Gebiet Technical area
Die Erfindung bezieht sich auf Schnellkupplung zum lösbaren Verbinden zweier zylinderförmiger Kupplungsteile in Richtung Ihrer Drehachse mit einem Bajonettverschluss. The invention relates to a quick coupling for releasably connecting two cylindrical coupling parts in the direction of their axis of rotation with a bayonet lock.
Stand der Technik State of the art
Bekannte derartige Schnellkupplungen sind beispielsweise Feuerwehrkupplungen, also insbesondere Schlauchkupplungen zum Verbinden von Feuerwehrschläuchen und Armaturen. Der bekannteste Vertreter dieser Kupplungen ist wohl die Storz-Kupplung, eine symmetrische hermaphrodite Kupplung, d. h. die zu kuppelnden Anschlussarmaturen sind auf der Kupplungsseite identisch und können beliebig verbunden werden. Darüber hinaus gibt es auch Schnellkupplungen, bei denen die beiden Enden eines Schlauches oder einer Armatur zwar gegengleiche aber konstruktiv unterschiedliche Kupplungsteile aufweisen. Die bekannten Schnellkupplungen dienen nicht nur einem Verbinden zweier Leitungen, sondern können auch zum lösbaren Verbinden nahezu beliebiger Konstruktionselemente verwendet werden. Well-known quick couplings of this type are, for example, fire service couplings, i.e. in particular hose couplings for connecting fire hoses and fittings. The best-known example of these couplings is probably the Storz coupling, a symmetrical hermaphrodite coupling, i.e. the connecting fittings to be coupled are identical on the coupling side and can be connected in any way. In addition, there are also quick couplings in which the two ends of a hose or fitting have opposite but structurally different coupling parts. The well-known quick couplings are not only used to connect two lines, but can also be used to detachably connect almost any structural element.
Schnellkupplungen der eingangs geschilderten Art eignen sich auch zum Verschließen von Behältern oder Leitungen. Einen Verschluss für Behälter offenbart beispielsweise die CH528416A, insbesondere für Krüge, Flaschen und Kannen. Der Verschluss umfasst eine gegen die Behälterinnenwand drückende Dichtung, wobei der Verschluss ein elastisches Verschlussorgan aufweist, das mit einem Bedienungsorgan derart in Arbeitsverbindung steht, dass der Dichtungsdruck durch elastische Wirkung selbsttätig erzeugt wird. Zum Vorspannen des elastischen Verschlussorgans in Richtung der Drehachse zum Anpressen des Verschlussorgans gegen die Behälterinnenwand ist ein Spannmechanismus vorgesehen, der einen Stelltrieb mit einer schraubenlinienförmig ansteigenden Innenschulter aufweist. Quick couplings of the type described above are also suitable for closing containers or pipes. For example, CH528416A discloses a closure for containers, in particular for jugs, bottles and cans. The closure comprises a seal that presses against the inner wall of the container, the closure having an elastic closure member that is in working connection with an operating element in such a way that the sealing pressure is automatically generated by elastic action. To pre-tension the elastic closure element in the direction of the axis of rotation in order to press the closure element against the inner wall of the container, a tensioning mechanism is provided which has an actuator with a helically rising inner shoulder.
Die FR2662427 zeigt eine Schnellkupplung für eine Flasche, wobei durch ein hinunterdrücken der Kappe eine Feder zusammengedrückt wird und elastische Metallplättchen den Flaschenkopf hintergreifend einrasten. Durch ein Drehen der Kappe kann die Schnellkupplung wieder gelöst werden. Eine ähnliche Schnellkupplung ist aus der DE 360756 C bekannt, die eine Metallhaube mit einem daran federnd gehaltenen Flaschenstoppel trägt. Sobald der Flaschenstoppel auf einen oberen Mündungsrand der Flasche aufgesetzt ist, wird die Feder wiederum durch hinunterdrücken der Metallhaube zusammengedrückt. Vollständig aufgesetzt hintergreifen wiederum Metallhaubenansätze den Flaschenkopf. Ein auf die konische Metallhaube aufgesetzter Spannring ver stet in der Verschlussstellung mit der Metallhaube und kann durch Drehen wieder gelöst werden. FR2662427 shows a quick coupling for a bottle, whereby a spring is compressed by pressing down the cap and elastic metal plates engage behind the bottle head. The quick coupling can be released again by turning the cap. A similar quick coupling is known from DE 360756 C, which has a metal hood with a bottle stopper held on it by springs. As soon as the bottle stopper is placed on the upper edge of the bottle mouth, the spring is again compressed by pressing down the metal hood. When fully placed, metal hood attachments again engage behind the bottle head. A clamping ring placed on the conical metal hood secures the metal hood in the closed position and can be released again by turning.
Nachteilig am Stand der Technik ist insbesondere die nicht unerhebliche Baugröße einer Storz-Kupplung bzw. die mangelnde mechanische Belastbarkeit der bekannten Flaschenkupplungen für rauere Einsatzzwecke. A particular disadvantage of the state of the art is the considerable size of a Storz coupling and the lack of mechanical resilience of the known bottle couplings for rougher applications.
Darstellung der Erfindung Description of the invention
Der Erfindung liegt somit die Aufgabe zugrunde, eine Schnellkupplung der eingangs geschilderten Art anzugeben, die eine gegenseitige, sichere und robuste Verriegelung zweier Kupplungsteile gestattet und leicht lösbar ist. The invention is therefore based on the object of specifying a quick coupling of the type described above, which allows a mutual, safe and robust locking of two coupling parts and is easily releasable.
Die Erfindung löst die gestellte Aufgabe dadurch, dass der Bajonettverschluss an einem Kupplungsteil ein in Kupplungsrichtung um die Längsachse verlaufendes Steilgewinde umfasst, an das ein entgegengesetzt der Eindrehrichtung beim Kuppeln verlaufender Querschlitz angesetzt ist und dass im Kupplungsbereich zwischen beiden Kupplungsteilen eine Feder vorgesehen ist, die beim Kuppeln derart an beiden Kupplungsteilen drehtest abgestützt ist, dass sich die Feder beim Kupplungsvorgang in und um die Drehachse spannt und einen am anderen Kupplungsteil vorgesehenen Kupplungsansatz, der in das Steilgewinde eingreift, in Kupplungsstellung im Querschlitz sichert. The invention solves the problem in that the bayonet lock on a coupling part comprises a steep thread running around the longitudinal axis in the coupling direction, to which a thread is attached in the opposite direction to the screwing in direction when A transverse slot is provided running along the coupling and a spring is provided in the coupling area between the two coupling parts which, during coupling, is supported against rotation on both coupling parts in such a way that the spring is tensioned in and around the axis of rotation during the coupling process and secures a coupling attachment provided on the other coupling part, which engages in the steep thread, in the coupling position in the transverse slot.
Zum Kuppeln der Kupplungsteile werden diese stirnseitig deckungsgleich aneinandergefügt. Der Kupplungsansatz kommt zur Wirkungsverbindung mit dem Steilgewinde und die Feder stützt sich um die Drehachse drehtest an beiden Kupplungsteilen ab. Werden die Kupplungsteile weiter in Kupplungsrichtung aneinandergefügt und dabei durch die Zwangsführung zwischen Kupplungsansatz und Steilgewinde um die Drehachse relativ zueinander verdreht wird die Feder einerseits in Richtung der Drehachse zusammengepresst und anderseits um die Drehachse gespannt. Dieses Spannen um die Drehachse bewirkt ein Einschieben des Kupplungsansatzes in den Querschlitz durch die Feder, sobald das Steilgewinde in den Querschlitz übergeht. Damit sind die beiden Kupplungsteile in der Kupplungsstellung stets gesichert gehalten. Nur durch ein aktives Herausdrehen des Kupplungsansatzes aus dem Querschlitz kann die Kupplung wieder gelöst werden und drückt die Feder die beiden Kupplungsteile wieder auseinander in ihre gelöste Stellung. Das Steilgewinde kann je nach Verwendungszweck der Schnellkupplung dem Außen- bzw. Innenmantel des jeweiligen Kupplungsteiles zugeordnet sein und kann sowohl in die Mantelfläche eingearbeitet sein, wie aus dieser erhaben sein, also vorstehen. Der Kupplungsansatz am anderen Kupplungsteil ist als entsprechendes Gegenstück auszuführen und im einfachsten Fall ein Zapfen od. dgl. To couple the coupling parts, they are joined together so that the ends are congruent. The coupling attachment is effectively connected to the steep thread and the spring is supported on both coupling parts by rotating it around the axis of rotation. If the coupling parts are joined further together in the coupling direction and rotated relative to one another around the axis of rotation by the forced guidance between the coupling attachment and the steep thread, the spring is pressed together in the direction of the axis of rotation on the one hand and tensioned around the axis of rotation on the other. This tensioning around the axis of rotation causes the spring to push the coupling attachment into the transverse slot as soon as the steep thread merges into the transverse slot. This means that the two coupling parts are always held securely in the coupling position. The coupling can only be released again by actively rotating the coupling attachment out of the transverse slot and the spring presses the two coupling parts apart again into their released position. Depending on the intended use of the quick coupling, the steep thread can be assigned to the outer or inner casing of the respective coupling part and can be incorporated into the casing surface or raised from it, i.e. protrude. The coupling attachment on the other coupling part is to be designed as a corresponding counterpart and in the simplest case is a pin or similar.
Zur Verbesserung der mechanischen Festigkeit und Haltbarkeit der Schnellkupplung kann das Steilgewinde mehrgängig ausgebildet sein. Dies erlaubt es auch Bauteile mit unterschiedlichem Winkelversatz zueinander zu montieren. To improve the mechanical strength and durability of the quick coupling, the steep thread can be designed with multiple starts. This also allows components with different angular offsets to be mounted to one another.
Um einen besonders sicheren Halt des Kupplungsansatzes im Querschlitz in der Kupplungsstellung sicherzustellen, ist es von Vorteil, wenn der Querschlitz quer zur Drehachse, insbesondere gegen die Kupplungsrichtung zurücklaufend, ausgerichtet ist. Ist der Querschlitz gegen die Kupplungsrichtung zurücklaufend bewirkt dies, dass der Kupplungsansatz von der Feder nicht nur um die Drehachse, sondern auch in Richtung der Drehachse gegen das Querschlitzende angestellt wird. In order to ensure a particularly secure hold of the coupling attachment in the cross slot in the coupling position, it is advantageous if the cross slot is to the axis of rotation, in particular running back against the direction of the coupling. If the transverse slot runs back against the direction of the coupling, this means that the coupling attachment is not only positioned by the spring around the axis of rotation, but also in the direction of the axis of rotation against the end of the transverse slot.
Für eine sichere Funktion der Kupplung ist es von Vorteil, wenn die Feder einerseits einem der beiden Kupplungsteile zugeordnet und an diesem drehest befestigt ist und wenn die Feder anderseits beim Kuppeln über eine Verdrehsicherung an das andere Kupplungsteil angesetzt ist. So verbleibt die Feder stets an einem der beiden Kupplungsteile und kann nicht verlorengehen. Im einfachsten Fall ist die Feder eine Schraubenfeder, es kann aber ein beliebige geeignete Feder Verwendung finden, die sowohl auf Druck als auch Torsion um die Drehachse belastbar ist. For the clutch to function safely, it is advantageous if the spring is assigned to one of the two clutch parts and is attached to it in a rotationally fixed manner, and if the spring is attached to the other clutch part via an anti-twisting device when coupling. This means that the spring always remains on one of the two clutch parts and cannot be lost. In the simplest case, the spring is a coil spring, but any suitable spring can be used that can withstand both pressure and torsion around the axis of rotation.
Die Verdrehsicherung kann nach Art einer Klauenkupplung ausgebildet sein, bei der an der Feder vorgesehene Klauenansätze in entsprechende Nuten des anderen Kupplungsteils eingreift. Eine etwas elegantere Form der Verdrehsicherung ist eine Klauenkupplung, bei der an der Feder ein Spannteller befestigt ist, der eine um die Drehachse umlaufende wellenförmige Oberfläche ausbildet, die in entsprechende, gegengleiche dem anderen Kupplungsteil zugeordnete Wellenberge und -täler eingreift. Die Verdrehsicherung kann in einem besonders einfachen Fall auch eine Art Reibkupplung, beispielsweise ein auf eine Flaschen- oder Rohrstirnseite aufgesetzter Gummistopfen sein. The anti-twisting device can be designed in the form of a claw coupling, in which claw projections on the spring engage in corresponding grooves on the other coupling part. A somewhat more elegant form of anti-twisting device is a claw coupling, in which a clamping plate is attached to the spring, which forms a wave-shaped surface running around the axis of rotation, which engages in corresponding, opposite wave crests and valleys assigned to the other coupling part. In a particularly simple case, the anti-twisting device can also be a type of friction coupling, for example a rubber stopper placed on the front of a bottle or pipe.
Ebenso kann die Verdrehsicherung nach Art einer formschlüssigen Verbindung ausgebildet sein, bei der die Feder über ein von der Kreisform abweichendes Profil an das andere Kupplungsteil angesetzt ist. Das Profil kann beispielsweise einen elliptischen bzw. einen Polygonquerschitt aufweisen. The anti-twisting device can also be designed in the form of a positive connection, in which the spring is attached to the other coupling part via a profile that deviates from the circular shape. The profile can, for example, have an elliptical or polygonal cross-section.
Für eine Fluiddichte Verbindung können die beiden Kupplungsteile in der Kupplungsstellung stirnseitig unter Zwischenlage einer Dichtung, insbesondere eines Dichtungsringes, aneinander anliegen. Damit ergibt sich eine zusätzliche Verspannung der Kupplung, wobei durch das Vorsehen eines elastischen Dichtungsringes eine Doppelpassung vermieden werden kann, da die Dichtung den erforderlichen Toleranzausgleich sicherstellt. For a fluid-tight connection, the two coupling parts can be in contact with each other in the coupling position with a seal, in particular a sealing ring, in between. This results in an additional Tensioning of the coupling, whereby a double fit can be avoided by providing an elastic sealing ring, since the seal ensures the necessary tolerance compensation.
Die erfindungsgemäße Schnellkupplung eignet sich zum Verbinden verschiedenster Bauteile, wie beispielsweise zum Zusammenbau von Tischen, Regalen, Formrohrkonstruktionen, zum Aufbau von Hindernisparcours und vielem mehr. Insbesondere kann aber ein Kupplungsteil als Verschluss, insbesondere als Verschlusskappe oder -stopfen, für ein mit dem anderen Kupplungsteil versehenes Bauteil, insbesondere einen Flüssigkeitsbehälter, ausgebildet sein. The quick coupling according to the invention is suitable for connecting a wide variety of components, such as for assembling tables, shelves, shaped tube constructions, for setting up obstacle courses and much more. In particular, however, a coupling part can be designed as a closure, in particular as a closure cap or plug, for a component provided with the other coupling part, in particular a liquid container.
Alternativ können auch beide Kupplungsteile als Schlauch- oder Rohranschlusskupplung ausgebildet sein, was insbesondere dann von Vorteil ist, wenn besonders schlanke Kupplungen erforderlich sind. Alternatively, both coupling parts can be designed as hose or pipe connection couplings, which is particularly advantageous when particularly slim couplings are required.
Zur Sicherung der beiden Kupplungsteile in der Kupplungsstellung gegen ungewolltes Lösen wird vorgeschlagen dem in Kupplungsstellung radial äußeren der beiden zylinderförmigen Kupplungsteile eine Sicherung und eine Sicherungsbetätigung zuzuordnen, wobei die Sicherung vorzugsweise das radial äußere der beiden Kupplungsteile durchragt und die Sicherung mit der Sicherungsbetätigung zwischen einer gegen das radial innere der beiden zylinderförmigen Kupplungsteile vorragenden Sicherungsstellung und einer vom radial inneren der beiden zylinderförmigen Kupplungsteile abgehobenen Freigabestellung verlagerbar ist. Die Sicherung ist damit nur mit einem gezielten, manuellen Eingriff lösbar und von außen, beispielsweise gegen Schläge, geschützt. Die Sicherung greift in seiner Sicherungsstellung vorzugsweise in eine Sicherungsaufnahme des radial inneren der beiden zylinderförmigen Kupplungsteile ein. To secure the two coupling parts in the coupling position against accidental release, it is proposed to assign a safety device and a safety actuation to the radially outer of the two cylindrical coupling parts in the coupling position, whereby the safety device preferably extends through the radially outer of the two coupling parts and the safety device can be moved with the safety actuation between a safety position protruding towards the radially inner of the two cylindrical coupling parts and a release position lifted away from the radially inner of the two cylindrical coupling parts. The safety device can therefore only be released with a targeted, manual intervention and is protected from the outside, for example against impacts. In its safety position, the safety device preferably engages in a safety receptacle of the radially inner of the two cylindrical coupling parts.
Besonders robuste Konstruktionsverhältnisse ergeben sich dabei, wenn die Sicherungsbetätigung um die und/oder in Richtung der Drehachse verlagerbar ist und eine gegen die Betätigungsrichtung ansteigende Rampe aufweist, und wenn die Sicherung einen verbreiterten Kopf aufweist, den die Rampe bei einer Verlagerung der Sicherungsbetätigung aus der Sicherungsstellung in die Freigabestellung hebt. Particularly robust construction conditions result when the safety actuation can be displaced around and/or in the direction of the rotation axis and has a ramp rising against the direction of actuation, and when the safety has a widened head which the ramp can Shifting the safety actuator from the safety position to the release position.
Kurze Beschreibung der Erfindung Brief description of the invention
In der Zeichnung ist der Erfindungsgegenstand beispielsweise dargestellt. Es zeigen The drawing shows the subject matter of the invention as an example.
Fig. 1 eine erfindungsgemäße Schnellkupplung im teilgeschnittenen Längsschnitt, Fig. 2 die Schnellkupplung aus Fig. 1 im Schnitt nach der Linie ll-ll, Fig. 1 shows a quick coupling according to the invention in a partially sectioned longitudinal section, Fig. 2 shows the quick coupling from Fig. 1 in section along the line ll-ll,
Fig. 3 eine Konstruktionsvariante der Schnellkupplung in teilgeschnittener Ansicht bei geschlossener Kupplung, Fig. 3 a design variant of the quick coupling in a partially sectioned view with the coupling closed,
Fig. 4 die Schnellkupplung aus Fig. 3 im teilgeschnittenen Längsschnitt bei offener Kupplung, Fig. 4 the quick coupling from Fig. 3 in a partially cut longitudinal section with the coupling open,
Fig. 5 eine weitere Konstruktionsvariante der Schnellkupplung in teilgeschnittener Ansicht, Fig. 5 another design variant of the quick coupling in partially sectioned view,
Fig. 6 eine Konstruktionsvariante der Schnellkupplung in teilgeschnittener Ansicht zum Verbinden von Fluidleitungen, Fig. 6 a design variant of the quick coupling in partially sectioned view for connecting fluid lines,
Fig. 7 eine weitere Konstruktionsvariante der Schnellkupplung in teilgeschnittener Explosionsansicht zum Montieren diverser Bauteile an einer Welle Fig. 7 another design variant of the quick coupling in partially sectioned exploded view for mounting various components on a shaft
Fig. 8 eine Konstruktionsvariante einer gelösten Schnellkupplung in teilgeschnittener Ansicht mit einer Sicherung, Fig. 8 a design variant of a released quick coupling in partially sectioned view with a safety device,
Fig. 9 die Konstruktionsvariante aus Fig. 8 im Schnitt nach der Linie IX-IX,Fig. 9 the construction variant from Fig. 8 in section along the line IX-IX,
Fig. 10 die Konstruktionsvariante aus Fig. 8 bei gekuppelter und gesicherter Schnellkupplung. Fig. 10 shows the design variant from Fig. 8 with the quick coupling coupled and secured.
Wege zur Ausführung der Erfindung Ways to implement the invention
Es wird eine Schnellkupplung 1 zum lösbaren Verbinden zweier zylinderförmiger Kupplungsteile 2, 3 in Richtung Ihrer Drehachse 4 mit einem Bajonettverschluss 5 beschrieben. Der Bajonettverschluss 5 umfasst an einem Kupplungsteil 2 ein in Kupplungsrichtung um die Drehachse 4 verlaufendes Steilgewinde 6, an das ein entgegengesetzt der Eindrehrichtung E beim Kuppeln verlaufender Querschlitz 7 angesetzt ist. Steilgewinde 6 und Querschlitz 7 bilden dabei eine hakenförmige Hinterschneidung. Im Kupplungsbereich zwischen beiden Kupplungsteilen 2, 3 ist eine Feder 8 vorgesehen, die beim Kuppeln derart an beiden Kupplungsteilen 2, 3 drehtest abgestützt ist, dass sich die Feder 8 beim Kupplungsvorgang in und um die Drehachse 4 spannt und einen am anderen Kupplungsteil 3 vorgesehenen Kupplungsansatz 9, der in das Steilgewinde 6 eingreift, in Kupplungsstellung im Querschlitz 7 sichert. In den dargestellten Ausführungsbeispielen ist das Steilgewinde 6 mehrgängig ausgebildet. Ein Lösen der Schnellkupplung erfolgt analog in umgekehrter Richtung. Der Kupplungsansatz 9 wird gegen die Kraft der Feder 8 aus dem Querschlitz 7 herausgedreht und die Kupplungsteile 2, 3 werden von der Feder 8 wieder auseinandergeschoben. A quick coupling 1 is described for detachably connecting two cylindrical coupling parts 2, 3 in the direction of their rotation axis 4 with a bayonet lock 5. The bayonet lock 5 comprises a steep thread 6 on a coupling part 2 that runs in the coupling direction around the rotation axis 4, to which a transverse slot 7 is attached that runs opposite to the screwing direction E when coupling. The steep thread 6 and the transverse slot 7 form a hook-shaped Undercut. In the coupling area between the two coupling parts 2, 3, a spring 8 is provided which is supported against rotation on both coupling parts 2, 3 during coupling in such a way that the spring 8 is tensioned in and around the axis of rotation 4 during the coupling process and secures a coupling attachment 9 provided on the other coupling part 3, which engages in the steep thread 6, in the coupling position in the transverse slot 7. In the exemplary embodiments shown, the steep thread 6 is designed with multiple threads. The quick coupling is released in the same way in the opposite direction. The coupling attachment 9 is rotated out of the transverse slot 7 against the force of the spring 8 and the coupling parts 2, 3 are pushed apart again by the spring 8.
Der Querschlitz 7 ist quer zur Drehachse 4, gegen die Kupplungsdrehrichtung zurücklaufend, ausgerichtet. The transverse slot 7 is aligned transversely to the axis of rotation 4, running back against the direction of rotation of the coupling.
Die Feder 8 ist einerseits einem der beiden Kupplungsteile 3 zugeordnet und an diesem drehest befestigt und anderseits beim Kuppeln über eine Verdrehsicherung 10 an das andere Kupplungsteil 2 angesetzt. The spring 8 is on the one hand assigned to one of the two coupling parts 3 and is fixed to it in a rotationally fixed manner and on the other hand is attached to the other coupling part 2 via an anti-twisting device 10 during coupling.
Die Verdrehsicherung kann nach Art einer Klauenkupplung ausgebildet sein, bei der an der Feder vorgesehene Klauenansätze 11 in entsprechende Nuten 12 des anderen Kupplungsteils eingreifen. Die Verdrehsicherung kann darüber hinaus nach Art einer Klauenkupplung ausgebildet sein, bei der an der Feder ein Spannteller 13 befestigt ist, der eine um die Drehachse 4 umlaufende wellenförmige Oberfläche ausbildet, die in entsprechende, gegengleiche dem anderen Kupplungsteil zugeordnete Wellenberge und -täler eingreift, also praktisch einer Stirnklauenkupplung entspricht. The anti-twisting device can be designed in the manner of a claw coupling, in which claw projections 11 provided on the spring engage in corresponding grooves 12 of the other coupling part. The anti-twisting device can also be designed in the manner of a claw coupling, in which a clamping plate 13 is attached to the spring, which forms a wave-shaped surface running around the axis of rotation 4, which engages in corresponding, opposite wave peaks and valleys assigned to the other coupling part, thus practically corresponding to a face claw coupling.
Darüber hinaus kann die Verdrehsicherung nach Art einer formschlüssigen Verbindung ausgebildet sein, bei der die Feder über ein von der Kreisform abweichendes Profil an das andere Kupplungsteil angesetzt ist, beispielsweise elliptisch oder nach Art eines Polygons. Die beiden Kupplungsteile 2, 3 liegen in der Kupplungsstellung stirnseitig unter Zwischenlage einer Dichtung14, insbesondere eines Dichtungsringes, aneinander an. Ein Kupplungsteil 3 kann als Verschluß, insbesondere als Verschlusskappe oder -stopfen, für ein mit dem anderen Kupplungsteil 2 versehenes Bauteil, insbesondere einen Flüssigkeitsbehälter, ausgebildet sein. Gegebenenfalls können beide Kupplungsteile 2, 3 als Schlauch- oder Rohranschlusskupplung ausgebildet sein (Fig. 6). In addition, the anti-twisting device can be designed in the form of a positive connection in which the spring is attached to the other coupling part via a profile that deviates from the circular shape, for example elliptical or in the form of a polygon. In the coupling position, the two coupling parts 2, 3 rest against each other at the front with a seal 14, in particular a sealing ring, in between. One coupling part 3 can be designed as a closure, in particular as a closure cap or plug, for a component provided with the other coupling part 2, in particular a liquid container. If necessary, both coupling parts 2, 3 can be designed as hose or pipe connection couplings (Fig. 6).
Fig. 7 zeigt eine weitere Konstruktionsvariante der erfindungsgemäßen Schnellkupplung in teilgeschnittener Explosionsansicht zum Montieren diverser Bauteile an einer Welle. Diese Bauteile können Flansche, Reifen u. dgl. sein, welche mit der Schnellkupplung rasch und einfach gewechselt werden können. In diesem Ausführungsbeispiel ist die Verdrehsicherung 10 wiederum nach Art einer Klauenkupplung ausgebildet, wobei die Verdrehsicherung 10 in diesem Fall einem Bauteil welches das Kupplungsteil 3 bildet zugeordnet ist welches an einer Welle, hier dem Kupplungsteil 2, zu befestigen ist. Fig. 7 shows a further design variant of the quick coupling according to the invention in a partially sectioned exploded view for mounting various components on a shaft. These components can be flanges, tires and the like, which can be changed quickly and easily with the quick coupling. In this embodiment, the anti-twisting device 10 is again designed in the manner of a claw coupling, the anti-twisting device 10 in this case being assigned to a component which forms the coupling part 3, which is to be attached to a shaft, here the coupling part 2.
Bei der Konstruktionsvariante einer gelösten Schnellkupplung gern. Fig. 8 kann dem in Kupplungsstellung radial äußeren der beiden zylinderförmigen Kupplungsteile 3 eine Sicherung 15 und eine Sicherungsbetätigung 16 zugeordnet sein, wobei die Sicherung 15 das radial äußere der beiden Kupplungsteile 3 durchragt und die Sicherung 15 mit der Sicherungsbetätigung 16 zwischen einer gegen das radial innere der beiden zylinderförmigen Kupplungsteile 2 vorragenden Sicherungsstellung und einer vom radial inneren der beiden zylinderförmigen Kupplungsteile 2 abgehobenen Freigabestellung verlagerbar ist. Mit einer derartigen Sicherung kann die Schnellkupplung in Kupplungsstellung gegen ein ungewolltes Lösen gesichert werden. Diese Sicherung kann in analoger Weise bei allen anderen Ausführungsformen der Erfindung ebenfalls vorgesehen sein. In diesem Ausführungsbeispiel ist dem Kupplungsteil 2 ein Werkzeug od. dgl. zugeordnet, welches mit der Sicherung gegen ein ungewolltes Lösen der Kupplung formschlüssig am Kupplungsteil 3 festgelegt ist. Die Sicherung 15 greift in seiner Sicherungsstellung in eine SicherungsaufnahmeIn the design variant of a released quick coupling as shown in Fig. 8, a safety device 15 and a safety actuation 16 can be assigned to the radially outer of the two cylindrical coupling parts 3 in the coupling position, the safety device 15 protruding through the radially outer of the two coupling parts 3 and the safety device 15 can be displaced with the safety actuation 16 between a safety position protruding towards the radially inner of the two cylindrical coupling parts 2 and a release position lifted away from the radially inner of the two cylindrical coupling parts 2. With such a safety device, the quick coupling can be secured against accidental release in the coupling position. This safety device can also be provided in an analogous manner in all other embodiments of the invention. In this exemplary embodiment, a tool or the like is assigned to the coupling part 2, which is positively secured to the coupling part 3 with the safety device against accidental release of the coupling. In its safety position, the fuse 15 engages in a fuse holder
17 des radial inneren der beiden zylinderförmigen Kupplungsteile 2 ein. Die Sicherungsaufnahme ist insbesondere eine Bohrung od. dgl. in welche die Sicherung bei einem schließen der Schnellkupplung eingleitet und in der die Sicherung mittels einer Schraubenfeder od. einer anderen geeigneten Feder gehalten wird. 17 of the radially inner of the two cylindrical coupling parts 2. The safety receptacle is in particular a bore or the like into which the safety device slides when the quick coupling is closed and in which the safety device is held by means of a coil spring or another suitable spring.
Die Sicherungsbetätigung 16 ist um die und/oder in Richtung der Drehachse (4) verlagerbar und weist eine gegen die Betätigungsrichtung R ansteigende RampeThe safety actuation 16 can be displaced around and/or in the direction of the rotation axis (4) and has a ramp rising against the actuation direction R
18 aufweist, wobei die Sicherung 15 einen verbreiterten Kopf 19 aufweist, den die Rampe 18 bei einer Verlagerung der Sicherungsbetätigung 16 gegen die Kraft der18, wherein the safety device 15 has a widened head 19, which the ramp 18 pushes against the force of the
Schraubenfeder aus der Sicherungsstellung in die Freigabestellung hebt. Coil spring lifts from the locking position to the release position.

Claims

Patentansprüche Patent claims
1 . Schnellkupplung (1 ) zum lösbaren Verbinden zweier zylinderförmiger Kupplungsteile (2, 3) in Richtung Ihrer Drehachse (4) mit einem Bajonettverschluss (5), dadurch gekennzeichnet, dass der Bajonettverschluss an einem Kupplungsteil ein in Kupplungsrichtung um die Drehachse (4) verlaufendes Steilgewinde (6) umfasst, an das ein entgegengesetzt der Eindrehrichtung (E) beim Kuppeln verlaufender Querschlitz (7) angesetzt ist und dass im Kupplungsbereich zwischen beiden Kupplungsteilen eine Feder (8) vorgesehen ist, die beim Kuppeln derart an beiden Kupplungsteilen (2, 3) drehfest abgestützt ist, dass sich die Feder (8) beim Kupplungsvorgang in und um die Drehachse (4) spannt und einen am anderen Kupplungsteil vorgesehenen Kupplungsansatz (9), der in das Steilgewinde (6) eingreift, in Kupplungsstellung im Querschlitz (7) sichert. 1. Quick coupling (1) for detachably connecting two cylindrical coupling parts (2, 3) in the direction of their axis of rotation (4) with a bayonet lock (5), characterized in that the bayonet lock on one coupling part comprises a steep thread (6) running in the coupling direction around the axis of rotation (4), to which a transverse slot (7) running opposite to the screwing direction (E) during coupling is attached, and that in the coupling area between the two coupling parts a spring (8) is provided which is supported in a rotationally fixed manner on both coupling parts (2, 3) during coupling in such a way that the spring (8) is tensioned in and around the axis of rotation (4) during the coupling process and secures a coupling attachment (9) provided on the other coupling part, which engages in the steep thread (6), in the coupling position in the transverse slot (7).
2. Schnellkupplung nach Anspruch 1 , dadurch gekennzeichnet, dass das Steilgewinde (6) mehrgängig ausgebildet ist. 2. Quick coupling according to claim 1, characterized in that the steep thread (6) is designed with multiple starts.
3. Schnellkupplung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Querschlitz (7) quer zur Drehachse (4), insbesondere am eindrehseitigen Ende des Steilgewindes (6), gegen die Kupplungsrichtung zurücklaufend, ausgerichtet ist. 3. Quick coupling according to claim 1 or 2, characterized in that the transverse slot (7) is aligned transversely to the axis of rotation (4), in particular at the screw-in end of the steep thread (6), running back against the coupling direction.
4. Schnellkupplung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Feder (8) einerseits einem der beiden Kupplungsteile (3) zugeordnet und an diesem drehest befestigt ist und dass die Feder (8) anderseits beim Kuppeln über eine Verdrehsicherung (10) an das andere Kupplungsteil (2) angesetzt ist. 4. Quick coupling according to one of claims 1 to 3, characterized in that the spring (8) is assigned to one of the two coupling parts (3) and is fixed to it in a rotationally fixed manner and that the spring (8) is attached to the other coupling part (2) via an anti-twist device (10) during coupling.
5. Schnellkupplung nach Anspruch 5, dadurch gekennzeichnet, dass die Verdrehsicherung (10) nach Art einer Klauenkupplung ausgebildet ist, bei der an der Feder vorgesehene Klauenansätze (11 ) in entsprechende Nuten (12) des anderen Kupplungsteils eingreift. 5. Quick coupling according to claim 5, characterized in that the anti-twisting device (10) is designed in the manner of a claw coupling, in which the claw projections (11) provided on the spring engage in corresponding grooves (12) of the other coupling part.
6. Schnellkupplung nach Anspruch 5, dadurch gekennzeichnet, dass die Verdrehsicherung (10) nach Art einer Klauenkupplung ausgebildet ist, bei der an der Feder ein Spannteller (13) befestigt ist, der eine um die Drehachse (4) umlaufende wellenförmige Oberfläche ausbildet, die in entsprechende, gegengleiche dem anderen Kupplungsteil zugeordnete Wellenberge und -täler eingreift. 6. Quick coupling according to claim 5, characterized in that the anti-twisting device (10) is designed in the manner of a claw coupling, in which a clamping plate (13) is fastened to the spring, which forms a wave-shaped surface running around the axis of rotation (4) and engaging in corresponding, opposite wave peaks and valleys assigned to the other coupling part.
7. Schnellkupplung nach Anspruch 5, dadurch gekennzeichnet, dass die Verdrehsicherung (10) nach Art einer formschlüssigen Verbindung ausgebildet ist, bei der die Feder (8) über ein von der Kreisform abweichendes Profil an das andere Kupplungsteil angesetzt ist. 7. Quick coupling according to claim 5, characterized in that the anti-twisting device (10) is designed in the manner of a positive connection, in which the spring (8) is attached to the other coupling part via a profile deviating from the circular shape.
8. Schnellkupplung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die beiden Kupplungsteile (2, 3) in der Kupplungsstellung stirnseitig unter Zwischenlage einer Dichtung (14), insbesondere eines Dichtungsringes, aneinander anliegen. 8. Quick coupling according to one of claims 1 to 7, characterized in that the two coupling parts (2, 3) in the coupling position abut one another at the end with the interposition of a seal (14), in particular a sealing ring.
9. Schnellkupplung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass ein Kupplungsteil (3) als Verschluss, insbesondere als Verschlusskappe oder -stopfen, für ein mit dem anderen Kupplungsteil (2) versehenes Bauteil, insbesondere einen Flüssigkeitsbehälter, ausgebildet ist. 9. Quick coupling according to one of claims 1 to 8, characterized in that one coupling part (3) is designed as a closure, in particular as a closure cap or plug, for a component provided with the other coupling part (2), in particular a liquid container.
10. Schnellkupplung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass beide Kupplungsteile (2, 3) als Werkzeug-, Schlauch- oder Rohranschlusskupplung ausgebildet sind. 10. Quick coupling according to one of claims 1 to 8, characterized in that both coupling parts (2, 3) are designed as tool, hose or pipe connection couplings.
11. Schnellkupplung nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass dem in Kupplungsstellung radial äußeren der beiden zylinderförmigen Kupplungsteile (3) eine Sicherung (15) und eine Sicherungsbetätigung (16) zugeordnet sind, wobei die Sicherung (15) das radial äußere der beiden Kupplungsteile (3) durchragt und die Sicherung (15) mit der Sicherungsbetätigung (16) zwischen einer gegen das radial innere der beiden zylinderförmigen Kupplungsteile (2) vorragenden Sicherungsstellung und einer vom radial inneren der beiden zylinderförmigen Kupplungsteile (2) abgehobenen Freigabestellung verlagerbar ist. 11. Quick coupling according to one of claims 1 to 10, characterized in that a safety device (15) and a safety actuation (16) are assigned to the radially outer of the two cylindrical coupling parts (3) in the coupling position, wherein the safety device (15) outer of the two coupling parts (3) and the safety device (15) can be displaced with the safety actuation (16) between a safety position projecting towards the radially inner of the two cylindrical coupling parts (2) and a release position lifted away from the radially inner of the two cylindrical coupling parts (2).
12. Schnellkupplung nach Anspruch 11 , dadurch gekennzeichnet, dass die Sicherung (15) in seiner Sicherungsstellung in eine Sicherungsaufnahme (17) des radial inneren der beiden zylinderförmigen Kupplungsteile (2) eingreift. 12. Quick coupling according to claim 11, characterized in that the locking device (15) in its locking position engages in a locking receptacle (17) of the radially inner of the two cylindrical coupling parts (2).
13. Schnellkupplung nach Anspruch 11 oder 12, dadurch gekennzeichnet, dass die Sicherungsbetätigung (16) um die und/oder in Richtung der Drehachse (4) verlagerbar ist und eine gegen die Betätigungsrichtung (R) ansteigende Rampe (18) aufweist, und dass die Sicherung (15) einen verbreiterten Kopf (19) aufweist, den die Rampe (18) bei einer Verlagerung der Sicherungsbetätigung (16) aus der Sicherungsstellung in die Freigabestellung hebt. 13. Quick coupling according to claim 11 or 12, characterized in that the safety actuation (16) is displaceable around and/or in the direction of the axis of rotation (4) and has a ramp (18) rising against the actuation direction (R), and that the safety (15) has a widened head (19) which the ramp (18) lifts when the safety actuation (16) is displaced from the securing position to the release position.
PCT/AT2023/060128 2022-10-20 2023-04-17 Quick coupling for releasably connecting two cylindrical coupling parts WO2024081979A1 (en)

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ATA50815/2022A AT525971B1 (en) 2022-10-20 2022-10-20 Quick coupling for releasably connecting two cylindrical coupling parts

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US919743A (en) * 1907-08-31 1909-04-27 Homer Rhea Mason Hose-coupling.
DE360756C (en) 1922-10-06 Fritz Bamberg Bottle cap
DE929165C (en) * 1951-04-24 1955-06-20 T A M La Sa Pour Tous App S Me Locking device for line connections
CH528416A (en) 1970-08-13 1972-09-30 Dubach Werner Closures for containers, in particular jugs, bottles and jugs
GB1394317A (en) * 1972-10-27 1975-05-14 Johns Manville Plastic pipe thrust resistant joint
FR2662427A1 (en) 1990-05-23 1991-11-29 Simbozel Claude Mechanical safety stopper
DE19726739A1 (en) * 1996-09-07 1998-03-12 Gmeiner Timo Bottle top for re-closing bottles

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CH589800A5 (en) * 1975-04-25 1977-07-15 Arx Ag
GB2155985B (en) * 1984-02-16 1988-08-24 Malcolm Gordon Victory Easily operated fastening device
JP3423072B2 (en) * 1994-05-30 2003-07-07 三洋電機株式会社 Hose fittings for beverage containers
US20020011730A1 (en) * 2000-05-26 2002-01-31 Stickan Kelley Allen Apparatus and method for connecting flow conveyances
WO2008062025A1 (en) * 2006-11-21 2008-05-29 Novo Nordisk A/S Medical delivery system comprising locking ring with l-shaped grooves
US10781957B2 (en) * 2017-01-24 2020-09-22 Staubli Faverges Fluid coupling element and fluid-coupling comprising such an element

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE360756C (en) 1922-10-06 Fritz Bamberg Bottle cap
US919743A (en) * 1907-08-31 1909-04-27 Homer Rhea Mason Hose-coupling.
DE929165C (en) * 1951-04-24 1955-06-20 T A M La Sa Pour Tous App S Me Locking device for line connections
CH528416A (en) 1970-08-13 1972-09-30 Dubach Werner Closures for containers, in particular jugs, bottles and jugs
GB1394317A (en) * 1972-10-27 1975-05-14 Johns Manville Plastic pipe thrust resistant joint
FR2662427A1 (en) 1990-05-23 1991-11-29 Simbozel Claude Mechanical safety stopper
DE19726739A1 (en) * 1996-09-07 1998-03-12 Gmeiner Timo Bottle top for re-closing bottles

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