DE102012106734A1 - Connecting device and connection system with such - Google Patents

Abstract

The present invention relates to a connecting device for connecting at least two pipe parts, the connecting device being at least partially connected to a first pipe part and a detachable connection to at least one connecting element operatively connected to a second pipe part being able to be established by means of the connecting device, the connecting device having at least one locking ring at least two elastically movable latching lugs protruding in the radially inner direction of the locking ring and at least one actuator ring for moving the latching lugs from at least one locking position in which at least one of the latching lugs engages the connecting element into at least one unlocking position in which the engagement is released, and vice versa, the respective locking lug being resiliently mounted on the locking ring at a first end via at least one locking arm and a second end opposite the first end de of the locking lug is freely movable, furthermore at least one guide element is arranged in the area of the second end of the respective locking lug and the respective guide element is guided in at least one gate surrounded by the actuator ring in such a way that the locking lug is caused by a spring force built up by the locking arm can be forced into the locking position and by means of a movement of the actuator ring relative to the locking ring and / or the locking ring relative to the actuator ring from the locking position against the spring force into the unlocking position; as well as a connection system comprising such a connection device.

Description

The present invention relates to a connecting device for connecting at least two pipe parts, wherein the connecting device is at least partially connected to a first pipe part and by means of the connecting device a releasable connection with at least one with a second pipe part operatively connected connection element can be produced, the connecting device with at least one locking ring at least two elastically movable latching lugs projecting in the radially inner direction of the locking ring and at least one actuator ring for moving the latching lugs out of at least one locking position, in which at least one of the latching lugs engages in the connecting element, in at least one unlocking position in which the engagement is released; and vice versa, wherein the respective locking lug is resiliently mounted on the Verrieglungsring at a first end via at least one latching arm and a first end opposite the second s end of the latch is free to move.

From the prior art, a plurality of such connecting devices is known. For example, the DE 100 30 030 C1 a Einrenkverbindung between two pipe parts, in particular between the pipe socket of a tapping device or a valve fitting on the one hand and the connection fitting a branch line on the other. The Einrenkverbindung consists of a plug pipe part on the one hand and a receiving pipe part on the other. Among them is a cam ring, which consists of a ring body with at least one radially projecting cam. The receiving tube part has an axially open radial recess, to which an axially closed chamber, which is associated with a control surface, connected in a tag. It is proposed to make the cam radially movable relative to the ring body of the cam ring and to radially profile the cam in the chamber to cooperate with the outer radial contour of the cam when rotating the cam ring. About the cam then the receiving tube part is positively connected to the plug pipe part.

However, the cams and the radial recess must first be aligned against each other before making a connection before they produce a kind of bayonet fitting a connection of the pipe parts. This complicates the connection process. Moreover, the formation of an undercut on an inner surface of the receiving tube part is necessary, which complicates the manufacturing process of the Einrenkverbindung, since the use of slide elements in a molding process is necessary. Further, the disclosed hinge connection does not make it possible to reliably detect from the outside whether the hinge connection is in a locked position or not. Furthermore, the Verrieglungsposition is not self-locking formed.

In addition, the reveals US7,566,079B1 a generic connection device in the form of a pipe coupling. This is suitable for connecting thermoplastic pipes to a metallic inlet connection. When the terminal is inserted into the coupling, a snap connection is provided by a plurality of locking teeth extending radially inwardly through the housing of a collar and engaging an annular projection formed on the inlet port. A solution of the connection of the inlet port and the tube is achieved by a rotation of the collar with respect to a housing of the coupling by a cam track formed on the housing interacting with the locking teeth to move the teeth radially outward and toward them from the projection to solve.

A disadvantage of this connection device, however, is that a comparatively high torque must be built up to solve the connection. Also, a variety of individual elements to provide the pipe coupling is necessary. So at least three individual elements in the form of the housing, a mounting ring and the collar are necessary.

It is therefore the object of the present invention to further develop the connection devices known from the prior art, in particular the generic connection device, in such a way that the disadvantages of the prior art are overcome. In particular, a connecting device is to be provided, which has a structurally simple structure and is easy to manufacture, in particular to reduce manufacturing costs, and at the same time makes a small force required for actuation and enables reliable detection of a locking position and / or an unlocking position.

This object is achieved in that at least one guide element is arranged in the region of the second end of the respective latching lug and the respective guide element is guided in at least one of the actuator ring included backdrop in such a way that the latching lug by a spring force built up by the latching arm in the Verrieglungsposition is zwingbar and by means of a movement of the Aktuatorrings relative to the locking ring and / or the locking ring relative to the Aktuatorring from the locking position against the spring force in the unlocked position is zwingbar.

It is particularly preferred that the first tube part is connectable to the actuator ring or the Verrieglungsring means of at least one first connection device.

Also, a connecting device according to the invention may be characterized in that the connecting element is connected to the second tube part, in particular by means of at least one second connecting device, at least partially, preferably completely, formed in the second tube part and / or at least one receptacle for the latching lug, in particular comprising at least one recess, at least one groove and / or at least one undercut, wherein the receptacle is preferably formed completely circumferentially around the second pipe part.

Furthermore, it is preferred that the connecting element comprises at least a first stop element for the connecting device, in particular the locking ring and / or the Aktuatorring, preferably for limiting movement of the connecting device in an axial direction along a first axis, wherein the first axis preferably a longitudinal axis of first pipe part and / or the second pipe part and / or an axis of symmetry of the actuator ring and / or the locking ring corresponds.

Also, the invention proposes that the locking ring at least partially radially externally attachable to the Aktuatorring, pushed and / or at least partially radially surrounding the Aktuatorring on the Aktutarring or the actuator ring at least partially radially externally attachable to the locking ring, pushed and / or at least partially surrounding the locking ring can be arranged radially on the locking ring, wherein the actuator ring and the locking ring are preferably connected to each other by means of at least one third connecting device, preferably such that a movement in an axial direction of the first axis is prevented and a rotational movement of the actuator ring relative to the Locking ring around the first axis is possible.

A further embodiment of the invention provides that the locking ring or the actuator ring is openable and / or closable at at least one circumferential location by means of at least one fourth connecting device, wherein preferably a plurality of individual segments of the locking ring or the actuator ring is provided, in particular via a plurality of fourth connection devices are connected to each other.

With the invention is also vorgschalgen that the latching lug and / or the latching arm is supported at least in the locking position in a direction along the first axis by at least a second stopper element encompassed by the actuator ring and / or with the second stopper member when building a force on the Connecting device in the direction of the first axis comes into contact, in particular the latching lug, at least in the locking position, at least partially protrudes into at least one opening formed in the actuator ring and / or protrudes through the opening.

It is particularly preferred that the latching arm and / or the locking lug extend or extend substantially in a direction perpendicular to the first axis and / or tangentially to a circumferential direction of the locking ring and / or actuator ring.

A further embodiment of the invention proposes that the latching lugs have at least one chamfer in one direction along the first axis, in particular a deflection of the latching lug and / or the latching arm from the locking position by inserting the second tube part into the actuator ring and / or the Locking ring along the first axis to achieve.

Furthermore, a connecting device may be characterized in that the guide element comprises at least one bolt extending parallel to the first axis and / or preferably at least two, preferably on opposite sides, the latching lug arranged guide elements are provided.

Advantageously, it can be provided that the slide at least one guideway on which rests the guide element, in particular by means of the spring force constructed by the spring force is forced into contact with the guideway comprises, wherein preferably the guideway is inclined with respect to a circumferential direction about the first axis, in particular, the surface of the guide track on which rests the guide element, extends at different radial distances from the first axis.

In the aforementioned embodiment, it is particularly preferred that at least one surface contour area providing a parking position of the connecting device, in particular the locking ring, the latching lug, the latching arm and / or the guide element, is provided in the surface of the guideway, preferably the surface of the guideway for providing the parking position partially uniform radial distance from the first axis and / or the distance of the surface of the guide track from the first axis of the parking position providing surface contour area starting increases at least partially in both circumferential directions of the first axis.

Furthermore, the invention proposes that the actuator ring at least a first mark and the locking ring have at least a second mark, wherein the first mark and the second mark are aligned with each other when the connecting means, in particular the latching nose, is in the Verrieglungsposition, and / or the first mark and the second mark are not aligned when the connecting device, in particular the latching lug, is in the unlocking position and / or the parking position.

A connecting device according to the invention can be characterized by at least one control ring which can be arranged coaxially with the actuator ring and / or the locking ring, wherein the control ring has at least one third marking, wherein in particular the third marking on the one hand and the first marking and / or the second marking on the other hand in the locking position the connecting device are aligned with each other and / or not aligned in the unlocking position and / or the parking position of the connecting device.

It is particularly preferred that the control ring comprises at least one recess for at least partially receiving the guide element and / or the second end of the latching lug, wherein the recess is preferably inclined relative to a radial direction of the first axis.

Furthermore, the connecting device may be characterized by at least one coaxial with the actuator ring, the locking ring and / or the control ring can be arranged end ring, wherein the end ring comprises at least one spring hammer element, which is convertible by means of the guide member from a rest position to a triggering and / or indicator position, wherein the rest position is taken in the presence of Verrieglungsposition the connecting device and / or the triggering and / or indicator position in the presence of the unlocking position and / or the parking position of the connecting device is taken.

In the above-described embodiment of the invention may further be provided that the spring hammer element is mounted by means of a resilient mounting in the end ring, by means of the storage a spring hammer element in the rest position compelling restoring force is buildable and / or the spring hammer element in the trigger and / or indicator position protrudes from the surface of the remaining portion of the end ring, wherein the spring hammer element, in particular in the triggering and / or indicator position, in operative connection with the guide element, in particular abuts this, that by one, preferably by one, in particular for resilient Storage additional, acting on the spring hammer element force, movement of the spring hammer element from the release and / or indicator position in the rest position, the guide element from the parking position, in particular in the locking position, is movable, said B ewegung preferably during a movement of the end ring and / or the spring hammer element against the connecting element, in particular the first stop element, can be generated.

The two aforementioned embodiments of a connecting device can be characterized in that the closing ring has at least one fourth marking, wherein in particular the fourth marking on the one hand and the first marking, the second marking and / or the third marking on the other hand are aligned with one another in the locking position of the connecting device and / or in the unlocked position and / or the parking position of the connecting device are not aligned.

It is preferred that the first marking, the second marking, the third marking and / or the fourth marking comprises at least one depression, at least one elevation, at least one imprint and / or at least one relief.

Furthermore, it can be provided that the actuator ring and / or the locking ring at least one sealing device, preferably comprising at least one O-ring, and / or connectable to the sealing device, in particular at least one recess, such as at least one groove, at least one recess and / or at least comprises an undercut for receiving the sealing device.

Finally, it is proposed for the connection device that the first connection device, the second connection device, the third connection device and / or the fourth connection device at least one latching connection, at least one clamping connection, at least one adhesive connection, at least one clip connection, at least one bayonet connection and / or at least one screw connection include or include.

Furthermore, the invention provides a connection system comprising at least one connecting device according to the invention connected to at least one first tubular part and at least one connectable with at least one second tubular part and / or or from the second pipe part at least partially, preferably completely, comprising connecting element.

The invention is therefore based on the surprising finding that a connecting device can be configured so that a force required for an actuation of the connecting device, in particular for transferring the same from a locking position to an unlocking position and vice versa, can be reduced by actuating a detent nose at least one guide element, which is arranged on a freely movable end of a detent, takes place. Characterized in that the guide element is arranged at one end of the latching nose, which faces away from an end of the latching lug on which the latching lug is resiliently connected via a latching arm with a locking ring, is the largest possible lever arm to overcome a spring force with which the latching lug in the Locking position is forced, ready. Thus, in connection devices known from the prior art, the linkage at the first end of the latching nose, where it is connected to the latching arm or the locking ring, causes, whereby a larger torque must be exerted on the actuator ring or locking ring to the spring force, with which the locking lugs are forced into the Verrieglungsposition to overcome.

Due to the fact that the spring force acting on the latching lugs and produced by the latching arm causes the latching lug to move in the direction of the latching position, a self-locking connection device is furthermore provided. Thus, this spring force causes the detent is forced into the Verrieglungsposition without an application of force on the locking ring and / or actuator ring and in the case in which the connecting element of the second tube part in the region of the connecting device, the detents engage in the connecting element for the production find the connection between the first pipe part and the second pipe part.

The first pipe part is attached to the connecting device, for example via a screw or plug / clamp connection.

It is particularly preferred that the connecting element is formed directly on the second tube part, for example in the form of a circumferential undercut. As a result, the number of required for the preparation of the connection between the first pipe part and the second pipe part of the individual elements is further reduced. However, if a one-piece design of the connecting element with the second tube part should not be possible, the provision of the connecting element as a separate element is possible. This can then be connected to the second pipe part by suitable connecting devices, such as a screw or clip connection. In the formation of the connecting element, it is particularly preferred that this is formed radially symmetrically. Thus, a connection of the two tube parts is made possible at any relative angles to each other, which significantly simplifies the assembly process, for example, compared to a mounting according to the principle of a bayonet closure. However, if a predetermined relative orientation of the pipe parts, in particular non-radially symmetrical tubular parts, desired during assembly, the connecting element but also the locking ring, in particular with regard to the arrangement of the locking lugs and the receptacles on the respective circumference, be formed radially asymmetric.

The formation of a first stop element offers the advantage that a movement of the connecting device relative to the second tube part, in particular the connecting element is limited to ensure trouble-free engagement of the locking lugs in the connecting element in the locking position and thus secure connection of the pipe parts together.

In particular, in the case where the locking ring radially surrounds the actuator ring or vice versa, it is necessary that the locking ring can be applied to the actuator ring or vice versa such that the detents may pass through the actuator ring to engage the connector can and at the same time the guide elements can be brought into operative connection with the backdrop. Under certain boundary conditions, for example when guide elements are provided on both sides of the latching lug, it is not possible in this case to slide the latching ring onto the actuator ring or vice versa in an axial direction along the first axis. In order to avoid a complicated manufacturing process with simultaneous production of the actuator ring and the locking ring, in particular that the locking ring must be formed on the actuator ring or vice versa, it is provided that the locking ring or the actuator ring by means of the fourth connection device in the manner of a lock geometry on at least one Place openable designed. This makes it possible to open the locking ring or Aktuatorring to put the actuator ring or locking ring and then the locking ring or actuator ring is closed by means of the fourth connection device. Furthermore, the locking ring or the actuator ring may also be formed by a plurality of individual segments in order to achieve a modular structure and so the Adjust locking ring or actuator ring to the respective boundary conditions.

In particular, in the case in which the locking lugs protrude into corresponding openings which are formed in the Aktuatorring protrude, in particular in the Verrieglungsposition extend through this, the edges of the openings act as a second stop elements for the latching lugs. Acting on the pipe parts or the connecting device forces, in particular tensile and shear forces are transmitted by the second stop element of the locking lugs on the actuator ring and so derived. To act on the detents pure shear loads, especially on the latching arms no buckling loads, so that a high load capacity is achieved. The second stop element can also be provided independently of the formation of an opening in the actuator ring, for example by an end edge of the actuator ring.

Due to the fact that the latching lugs and the latching arms extend in a circumferential direction and not in a direction parallel to an axis of symmetry of the actuator ring or locking ring, the latching arms, in particular their geometry, such as length, and the associated spring forces can be varied over a wide range be without the extent of the connecting device must be changed in the direction of the axis of symmetry. Thus, a very compact construction of the connecting device can be achieved.

If bevels are provided on the locking lugs, an attachment of the second pipe part to the connecting device or the first pipe part is made possible without additional actuation of the locking ring or of the actuator ring. Thus, the bevel causes, upon insertion of the second pipe part, in particular of the connecting element, in the connecting device, a deflection of the locking lugs from the locking position against the spring force established by the latching arms and upon reaching an end position, in particular upon reaching the first stop element, the locking lugs in "snap back" the locking position and so find engagement in the receptacle of the connecting element.

The formation of additional guide elements on the second end of the locking lugs simplifies the construction of the connecting device significantly. Thus, by the measure on the known from the prior art separate training of the federal government and the cam surface on a separate housing can be omitted, whereby the number of individual elements is further reduced, since the backdrop can be formed directly on the actuator. The formation of a plurality of guide elements on opposite sides of the locking lug also offers the advantage that the force acting on the individual guide element can be reduced and, moreover, a force can be introduced more uniformly into the latching lug or the latching arm via the guide elements. A torsional movement that could lead to premature fatigue and failure is thus prevented.

Due to the special course of the guideway of the scenes on which the guide element (s) rests / rest, in which the guideway is inclined with respect to a circumferential direction about the first axis, in particular the surface of the guideway on which rests the guide element in different Radial distances to the first axis, a conversion of a rotational movement of the actuator ring is achieved in a movement of the locking lugs or latching arms in a radial direction to the outside. This results in the least possible loss of power, so that the force to be built up on the actuator ring does not have to be additionally increased.

The formation of a parking position in the guideway offers several advantages. In the parking position, the locking lugs are in the unlocked position and, without a force must be built or maintained on the Aktuatorring held. Thus, the connecting device can be arranged without an actuation of the actuator ring in a position relative to the second tube part, in which the latching noses engage in a transfer to the unlocking position in the connecting element. In this positioning of the second pipe part relative to the connecting device no additional force for movement of the locking lugs from the Verrieglungsposition must be constructed against the spring force. After reaching the position in which the second tube part finds contact with the connecting device, in particular via the first stop element, the actuator ring can then simply be moved out of the parking position. Due to the shape of the gate or the guideway movement of the Aktuatorrings is then supported in a Verrieglungsposition the locking lugs by the spring force built up by the latching arms, so that only a small amount of force to attach the pipe parts to each other is necessary.

The parking position may be provided by a portion of the guideway in which the guide member remains at a constant distance in the radial direction for different relative rotational positions of the actuator ring and the locking ring to each other. This reduces the force required to leave the parking position.

On the other hand, however, the parking position can already be left by a small unwanted force and the connecting device can be transferred unintentionally into the locked position. If a parking position is formed by providing a recess in the guide track, movement of the actuator ring relative to the locking ring is possible only against the spring force built up by the latching arms. Only after overcoming this increase, the guide element returns to an area in which the radial distance decreases and so the actuator ring is forced into the Verrieglungsposition.

The special design of the guideway in conjunction with the additional guide elements, in particular in the form of bolts, also allows the display of whether the connecting device is in the locked position or outside of this. Thus, surface areas of both the actuator ring and the locking ring are visible from the outside. By attaching suitable markings at predetermined circumferential positions of the actuator ring in the form of first markings and the locking ring in the form of second markings, the locking position, ie a secure connection of the tube parts to each other, can be reliably detected from the outside. Thus, the markers can be arranged so that they are aligned only when the locking lugs and thus the connecting device are in the locked position.

This indication effect can also be reinforced or supported by the use of a control ring. Thus, this control ring allows the position of the locking lugs to be determined indirectly via the position of the guide elements. Thus, recesses are provided in the control ring into which the guide elements, in particular the bolts, engage. By an oblique shaping of the recesses in a radial direction, a movement of the guide elements in the radial direction causes a rotational movement of the control ring relative to the actuator ring or the locking ring. Thus, the control ring is in a predetermined rotational position when the detents, in particular with respect to a radial position, are in the locking position or the guide elements are in a position corresponding to the locking position of the detents. By using corresponding third markings, it is possible to indicate the position of the control ring relative to the actuator ring or the locking ring, which corresponds to the locking position of the locking lugs.

Alternatively or in addition to the control ring, a closing ring, as claimed, may be provided. This cover ring has a spring hammer element that can be brought into interaction with the guide element. This spring hammer element can be arranged and designed such that it can be transferred by the guide element from a rest position into a triggering and / or indicator position. For example, in the triggering and / or indicator position, the spring hammer element can protrude from the surface of the connecting ring and thus indicate a specific position of the guide elements and thus of the latching lugs. For example, the triggering and / or indicator position can be assumed when the guide element or the latching lug is outside the locking position, for example in the parking position. Thus, a user or installer can be warned that the connecting device is not in the locking position. Also, the spring hammer element can support a movement of the guide element from the park position by a restoring force supporting the spring force formed by the latching arms constructed in the direction of the locking position and transmitted via the guide elements on the latching lugs. Also, by exerting a force on the spring hammer element, the guide element and thus the locking lug can be forced out of the parking position. This force can be generated, for example, upon contact of the spring hammer element with the stop element of the second tube part. As a result, in particular the previously described "snapping back" of the locking lugs is triggered in the locking position when they are in the park position when the second pipe part is inserted.

Further features and advantages of the invention will become apparent from the following description, are explained in the preferred embodiments of the invention with reference to schematic drawings. It shows

1a a perspective view of a pipe part to be connected;

1b a cross-sectional view of the pipe part of 1a ;

2a a perspective view of a first embodiment of a connecting device according to the invention;

2 B a cross-sectional view of the connecting device of 2a ;

3a a perspective view of a locking ring of the connecting device of 2a and 2 B ;

3b a side view of the locking ring of 3a ;

3c a plan view of an actuator ring of the connecting device of 2a and 2 B ;

4a a cross-sectional view of the connecting device of 2a and 2 B after a connection with the second tube part of 1a and 1b in a locking position;

4b a cross-sectional view according to 4a in another peripheral area;

5 a perspective cross-sectional view of the connecting device in the locking position;

6 a plan view of arranged on the locking ring and on the Aktuatorring markings of the connecting device of 2a and 2 B ;

7a a perspective view of an actuator ring according to a second embodiment of a connecting device according to the invention;

7b a detail view according to the section A of 7a ;

8a a perspective plan view of a locking ring of the connecting device according to the second embodiment in an open position;

8b a perspective view of the locking ring of 8a in a closed position;

9a a perspective view of the actuator ring of 7a and 7b and the locking ring of the 8a and 8b in a locking position;

9b a supervision according to the 9a in the unlocked position;

10a a plan view of a control ring in a locking position of the connecting device;

10b a supervision according to the 10a in an unlocked position;

11a a plan view of a closing ring of the connecting device according to the second embodiment in a locking position;

11b a cross-sectional view of the second connecting means in the locking position;

12a a supervision according to the 11a in an unlocked position; and

12b a cross-sectional view according to the 11b in an unlocked position.

The present invention provides a connection device by means of which at least two pipe parts can be connected to one another. A first pipe part, not shown, is directly connected to the connecting device, wherein the connecting device has a detachable connection with a second pipe part 1 as in the example 1a and 1b is shown is possible. The second pipe part 1 comprises a connecting element in the form of an undercut 3 , According to the in the 1a and 1b shown second pipe part 1 is the connecting element in one piece in the form of the undercut 3 with the pipe part 1 educated. In addition, the connecting element comprises a first stop element in the form of a step 4 , Also, this stop element is integral with the second pipe part 1 educated. In other, not shown embodiments, the connecting element may also be formed as a separate component, which is connected to the second pipe part.

In 2a is a perspective view of a connecting device 5 illustrated according to a first embodiment of the invention. In 2 B is a cross-sectional view of the connecting device 5 shown. The connection device 5 includes a locking ring 7 and an actuator ring 9 , As 2 B can be seen, has the locking ring 7 a variety of locking lugs 11 on. The locking lugs 11 stand from the locking ring 7 with respect to a symmetry axis B radially inward of the locking ring 7 in front. At the locking lugs 11 are guide elements in the form of bolts 13 formed in a direction substantially parallel to the axis B, formed. Bolts 13 grab into one in the actuator ring 9 trained backdrop 15 one. The scenes 15 have guideways 17 on. The actuator ring 9 is at its the locking ring 7 opposite side, as in 2a represented by a panel 19 covered. This aperture 19 is in 2 B not shown.

In the 3a and 3b is the locking ring 7 the connection device 5 shown in more detail while in 3c the actuator ring 9 is shown in more detail.

Like that 3a and 3b it can be seen, are the locking lugs 11 on which the guide elements in the form of bolts 13 are formed, via latching arms 21 resilient on the locking ring 7 arranged. Both the latch arms 21 , as well as the locking lugs 11 extend along a circumferential direction of the locking ring 7 , that means tangential to a circumferential direction about the axis of symmetry B around. This makes it possible for the length of the latching arms 21 and thus by the latching arms 21 caused spring force can be changed without an extension of the locking ring 7 to extend in a direction parallel to the axis of symmetry B.

In 3c are the scenes 15 within the actuator ring 9 into which the bolts 13 Find intervention, shown. As 3c it can be seen that run in the wings 15 trained guideways 17 inclined with respect to the circumferential direction of the actuator ring 9 , Different areas 23 . 25 the scenery 15 or the guideway 17 are arranged at different radial distances from the axis of symmetry B. Through the area 25 a so-called parking position is determined.

As can be seen in particular from the 2 B results, causes a rotation of the Aktuatorrings 9 relative to the locking ring 7 in that the latching noses 11 due to the guidance of the guide elements 13 in the scenery 15 or guideway 17 be deflected radially outward against a through the latching arms 21 built-up spring force. As 3c it can be seen, the guideway runs 17 in the area 25 at a constant radial distance with respect to the axis of symmetry B. This causes, by a rotation of the Aktuatorrings 9 the guide elements in the form of bolts 13 in this area 25 can be transferred. Because in this area 25 however, there is no skewing, a stable position between the locking ring 7 and the actuator ring 9 ingested. The over the latch arms 21 built-up spring force then ensures that the bolts 13 on the guideway 17 rest, however, is in the actuator ring 9 no torque induced. This allows the connection device 5 stable in the parking position, which corresponds to an unlocking position, can be held.

In 4a is a cross-sectional view of a first peripheral region according to direction E in 3b the connection device 5 shown in a locked position. As 4a it can be seen, is the pipe part 1 in the connection device 5 been inserted. The stage 4 forms a stop for the actuator ring 9 , The catch 11 located in this locking position of the connecting device 5 engaged in the undercut 3 , This will be the second pipe part 1 secured against movement in the direction of the first axis B.

As 4a it can also be seen is within the locking ring 7 a depression 27 in which a sealing element in the form of an O-ring 29 is arranged, formed.

As 4b , which is a cross-sectional view of another peripheral region in the direction F in 3b shows, it can be seen, is the actuator ring 9 by means of a clip connection 31 secured in an axial direction of the first axis B. However, at the same time, a rotation of the actuator ring 9 relative to the locking ring 7 allows. By training appropriate bars 33 on the locking ring 7 It ensures that shearing forces on the locking lugs 11 or latching arms 21 be avoided. So comes the catch 11 or the locking arm 21 in the area of the bridges 33 in contact with a second stop element 34 of the actuator ring 9 ,

In 5 is a perspective view of the connecting device 5 shown in the locking position, but omitting the Aktuatorrings 9 , Again 5 it can be seen is in the locking ring 7 also a recording 35 a connection device, the connection of the connecting device 5 allows with a first tube part, not shown, formed.

In 6 is a plan view of the locking ring 7 and the actuator ring 9 the connection device 5 shown. On the actuator ring 9 , in particular on its circumference is a first mark in the form of a survey 37 formed while on the circumference of the locking ring 7 a second mark in the form of a survey 39 is trained. These marks 37 . 39 allow a user to lock the locking device 5 by recognizing that the markings 37 . 39 aligned with each other. This is especially the case when the locking ring 7 and the actuator ring 9 in the in 2a are shown relative position, so the locking lugs 11 are in their radially inner position.

In the connection device described above 5 According to a first embodiment, the actuator ring 9 partially around the locking ring 7 arranged circumferentially or pushed onto this.

The following is now based on the 7a to 12b a second embodiment of a connecting device according to the invention 5 ' explained. Those elements of the connection device 5 ' , those of the connecting device 5 correspond, bear the same reference numerals, but simply dashed.

In contrast to the connection device 5 becomes at the connection device 5 ' the locking ring 7 ' encircling the actuator ring 9 ' arranged.

This results in particular an internal structure of the Aktuatorrings 9 ' as he is in the 7a and 7b is shown. The appropriate scenes 15 ' are on an outer circumferential surface of the actuator ring 9 ' arranged.

The scenes 15 ' However, they still have guideways 17 ' on where the respective areas 23 ' and 25 ' are formed, in particular by the area 25 ' a parking position is formed. However, an intervention of the locking lugs 11 ' of the locking ring 7 ' as he especially in the 8a and 8b is shown to permit the actuator ring 9 ' openings 41 ' on, through which the locking lugs 11 ' can pass through.

As 8a it can be seen, is the locking ring 7 ' designed such that it is at its periphery in an area 43 ' can be opened. The locking ring 7 ' will be in the in 8a illustrated open constellation on the Aktuatorring 9 ' put on and then in the in 8b transferred constellation shown, ie in the area 43 ' closed by means of a connecting device. Subsequently, the connection device is located 5 ' especially in the in the 9a illustrated constellation.

Bolts 13 ' be in the backdrop 15 ' guided so that they are on the guideway 17 ' rest, under one by the latching arms 21 ' built-up spring preload.

Will now the locking ring 7 ' relative to the actuator ring 9 ' turned, then the bolt 13 ' in the sloping area 23 ' the guideway 17 ' guided and so moved radially outward. This simultaneously causes a movement of the locking lugs 11 'in the openings 41 ' into, in particular in 9b shown. The inner walls of the openings 41 ' form corresponding second stop elements 34 ' for the locking lugs 11 ' or latching arms 21 ' , In the in 9b shown position are the bolts 13 ' in the area 25 ' the guideway 17 ' and thus in the so-called parking position. In this parking position is the connection submission 5 ' or the locking lugs 11 ' in the unlocked position. In this position, the second pipe part in the connecting device 5 ' be introduced. By a corresponding relative rotation of the locking ring 7 ' relative to the actuator ring 9 ' then can the bolts 13 ' and thus the locking lugs 11 ' back in the 9a shown position, so as to lock the connecting device 5 . 5 ' manufacture.

Note, however, that when submitting the connection 5 . 5 ' A connection can also be made by the fact that the second tube part in the connecting device 5 . 5 ' is introduced when it is in a locking position. By appropriate bevels 45 . 45 ' become the catch noses 11 . 11 ' deflected out of the locking position by the axial movement of the second tube part and then after reaching an end position back into the undercut 3 snap back, so the second pipe part 1 connect to.

At the connection submission 5 ' it is also proposed that by a special reference to the 10a and 10b shown control ring 47 ' the detection of a locking or a locking position of the connecting device 5 ' is made possible from the outside.

The control ring 47 ' has a recess 49 ' in which the bolt 13 ' extends. The recess 49 ' is inclined relative to a radial direction of the axis B '. This causes when the bolt 13 ' from the in the 10a shown locking position in the in the 10b shown unlocking / parking position is transferred, the control ring 47 ' relative to the locking ring 7 ' is turned. At the control ring 47 ' is a mark in the form of a survey 51 ' educated. Like that 10a and 10b can be seen, has the locking ring 7 ' also a mark in the form of the survey 39 ' on. Align the markings 39 ' and 51 ' , as in 10a shown, the user can recognize from the outside that the connecting device 5 ' is in the locking position.

Finally, for the connection device 5 ' nor the use of a closing ring 53 ' as he especially in the 11a to 12b is shown proposed. The end ring 53 ' may alternatively or in addition to the control ring 47 ' coaxial with the actuator ring 9 ' or locking ring 7 ' to be ordered. In 11a is a top view of the end ring 53 ' , the control ring 47 ' and the locking ring 7 ' shown, in a locking position of the connecting device 5 ' while in 11b a cross-sectional view through the connecting device 5 ' is shown. The 12a corresponds essentially to the 11a However, the connection device is located 5 ' in the unlocking or parking position. The 12b corresponds essentially to the 11b , however, the connection device is located 5 ' also in the unlocked position.

11a In particular, it can be seen that the closing ring 53 ' a spring hammer element 55 ' having. In addition, at the end ring 53 ' another mark in the form of a survey 57 ' arranged. Is the connection device 5 ' in the locking position, so the aligned on the locking ring 7 ' trained mark 39 ' on the control ring 47 ' trained mark 51 ' and those on the end ring 53 ' trained mark 57 ' ,

In the locking position is beyond the spring hammer element 55 ' indented, ie the surface of the spring hammer element 55 ' closes flush with the remaining surface of the end ring 53 ' from. Is the connection device 5 ' However, in the unlocking position or in a parking position, as in the 12a and 12b is shown, so is the spring hammer element 55 ' from the into the 11a and 11b illustrated rest position in one in the 12a and 12b shown triggering and / or indicator position disengaged. This means that the spring hammer element 55 ' from the surface of the end ring 53 ' protrudes. This provides another indication to the user that the connection submission 5 ' not in the locking position. This display is in addition to that, as in 12a represented, the marks 39 ' . 51 ' and 57 ' not aligned.

As well as the 12b can be seen, is by the spring hammer element 55 ' an extra force on the bolt 13 ' exercised. This strength is especially enhanced when the end ring 53 ' against the attack 4 of the second pipe part 1 to be led. Does it come to a touch of the spring hammer element 55 ' with the stop 4 , so will the bolt 13 ' forced out of the parking position and leaves the area 25 ' in the area 23 ' the scenery 15 ' or guideway 17 ' above. However, this causes the latch 11 ' over the over the latching arm 21 ' built spring force is forced into the locking position with simultaneous relative rotation between the locking ring 7 ' and the actuator ring 9 ' , Thus, there is an automatic transfer of the connection device 5 ' in the locking position and thus to an automatic connection of the first pipe part with the second pipe part. So there is a "snap back", by the spring hammer element 55 ' is triggered when the guide element has been in the stable parking position per se.

The features described in the foregoing description, in the figures and in the claims may be essential to the invention in its various embodiments both individually and in any combination.

LIST OF REFERENCE NUMBERS

1

pipe part

3

undercut

4

step

5, 5 '

connecting device

7, 7 '

locking ring

9, 9 '

actuator ring

11, 11 '

locking lug

13, 13 '

bolt

15, 15 '

scenery

17, 17 '

guideway

19

cover

21, 21 '

detent arm

23, 23 '

Area

25, 25 '

Area

27, 27 '

deepening

29

O-ring

31

clip connection

33

web

34, 34 '

stop element

35,

admission

37

survey

39, 39 '

survey

41 '

opening

43 '

Area

45, 45 '

bevels

47 '

control ring

49 '

recess

51 '

survey

53 '

end ring

55 '

Spring hammer member

 57 '

survey

A

neckline

B, B '

axis of symmetry

e

direction

F

direction

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 10030030 C1 [0002]
• US 7566079 B1 [0004]

Claims (22)

Connection device ( 5 . 5 ' ) for connecting at least two pipe parts, wherein the connecting device ( 5 . 5 ' ) is connected at least in regions with a first pipe part and by means of the connecting device ( 5 . 5 ' ) a detachable connection with at least one with a second tube part ( 1 ) in operative connection element ( 3 . 4 ), the connecting device ( 5 . 5 ' ) at least one locking ring ( 7 . 7 ' ) with at least two elastically movable and in the radially inner direction of the locking ring ( 7 . 7 ' ) projecting locking lugs ( 11 . 11 ' ) and at least one actuator ring ( 9 . 9 ' ) for moving the latching noses ( 11 . 11 ' ) from at least one locking position, in which at least one of the latching lugs ( 11 . 11 ' ) Engagement in the connecting element ( 3 ), in at least one unlocking position, in which the engagement is released, and vice versa, wherein the respective latching lug ( 11 . 11 ' ) at a first end via at least one latching arm ( 21 . 21 ' ) resiliently on the locking ring ( 7 . 7 ' ) is mounted and a first end opposite the second end of the detent ( 11 . 11 ' ) is freely movable, characterized in that in the region of the second end of the respective latching lug ( 11 . 11 ' ) at least one guiding element ( 13 . 13 ' ) is arranged and the respective guide element ( 13 . 13 ' ) in at least one of the actuator ring ( 9 . 9 ' ) included scenery ( 15 . 15 ' ) is guided in such a way that the detent ( 11 . 11 ' ) by a through the latching arm ( 21 . 21 ' ) constructed spring force in the Verrieglungsposition is zwingbar and by means of a movement of the Aktuatorrings ( 9 . 9 ' ) relative to the locking ring ( 7 . 7 ' ) and / or the locking ring ( 7 . 7 ' ) relative to the actuator ring ( 9 . 9 ' ) From the locking position against the spring force in the unlocked position is zwingbar. Connecting device according to claim 1, characterized in that the first tube part with the actuator ring or the Verrieglungsring by means of at least one first connection device is connectable. Connecting device according to claim 1 or 2, characterized in that the connecting element ( 3 ) with the second pipe part ( 1 ), in particular by means of at least one second connecting device is connected, at least partially, preferably completely, in the second tube part ( 1 ) is formed and / or at least one receptacle for the latch ( 11 . 11 ' ), in particular comprising at least one depression, at least one groove and / or at least one undercut ( 3 ), wherein the receptacle ( 3 ) preferably around the second pipe part ( 1 ) is formed completely circumferential. Connecting device according to one of the preceding claims, characterized in that the connecting element at least a first stop element ( 4 ) for the connection device ( 5 . 5 ' ), in particular the locking ring ( 7 . 7 ' ) and / or the actuator ring ( 9 . 9 ' ), preferably for limiting a movement of the connecting device ( 5 . 5 ' ) in an axial direction along a first axis (B, B '), wherein the first axis preferably a longitudinal axis of the first tube part and / or the second tube part and / or an axis of symmetry (B, B') of the Aktuatorrings ( 9 . 9 ' ) relative and / or the locking ring ( 7 . 7 ' ) corresponds. Connecting device according to one of the preceding claims, characterized in that the locking ring ( 7 ' ) at least partially radially outward on the actuator ring ( 9 ' ) attachable, slidable and / or at least partially the Aktuatorring ( 9 ' ) radially surrounding on the actuator ring ( 9 ' ) can be arranged or the actuator ring ( 9 ) at least partially radially outward on the locking ring ( 7 ) attachable, slidable and / or at least partially the locking ring ( 7 ) radially surrounding on the locking ring ( 7 ) can be arranged, wherein the actuator ring ( 9 ) and the locking ring ( 7 ) preferably by means of at least one third connecting device ( 31 ) are connectable to each other, preferably such that a movement in an axial direction of the first axis (B, B ') is prevented and a rotational movement of the Aktuatorrings ( 9 . 9 ' ) relative to the locking ring ( 7 . 7 ' ) about the first axis (B, B ') is possible. Connecting device according to one of the preceding claims, characterized in that the locking ring ( 7 ' ) or the actuator ring at at least one circumferential location ( 43 ' ) is openable and / or closable by means of at least one fourth connecting device, wherein preferably a plurality of individual segments of the locking ring or of the actuator ring is provided, which can be connected to one another in particular via a multiplicity of fourth connecting devices. Connecting device according to one of the preceding claims, characterized in that the latching lug ( 11 . 11 ' ) and / or the latch arm ( 21 . 21 ' ) at least in the locking position in a direction along the first axis (B, B ') through at least a second one of the actuator ring (10). 9 . 9 ' ) stop element ( 34 ) is supported and / or with the second stop element ( 34 ) when a force is applied to the connection device ( 5 . 5 ' ) in the direction of the first axis (B, B ') comes into contact, in particular the latching lug ( 11 ' ), at least in the locking position, at least partially in at least one in the actuator ring ( 9 ' ) formed opening ( 41 ' ) and / or through the opening ( 41 ' ) protrudes. Connecting device according to one of the preceding claims, characterized in that the latching arm ( 11 . 11 ' ) and / or the latch ( 21 . 21 ' ) is substantially in a direction perpendicular to the first axis (B, B ') and / or tangential to a circumferential direction of the locking ring ( 7 . 7 ' ) and / or actuator ring ( 9 . 9 ' ) extends or extend. Connecting device according to one of the preceding claims, characterized in that the latching lug ( 11 . 11 ' ) at least one bevel ( 45 . 45 ' ) in a direction along the first axis (B, B '), in particular a deflection of the latching lug ( 11 . 11 ' ) and / or the latching arm ( 21 . 21 ' ) from the locking position by inserting the second tube part ( 1 ) in the actuator ring ( 9 . 9 ' ) and / or the locking ring ( 7 . 7 ' ) along the first axis (B, B '). Connecting device according to one of the preceding claims, characterized in that the guide element at least one parallel to the first axis (B, B ') extending bolt ( 13 . 13 ' ) and / or preferably at least two, preferably on opposite sides, of the detent ( 11 . 11 ' ) arranged guide elements ( 13 . 13 ' ) are provided. Connecting device according to one of the preceding claims, characterized in that the scenery ( 15 . 15 ' ) at least one guideway ( 17 . 17 ' ) on which the guide element ( 13 . 13 ' ) rests, in particular by means of the spring arm ( 21 . 21 ' ) constructed spring force in contact with the guideway ( 17 . 17 ' ), wherein preferably the guideway ( 17 . 17 ' ) is inclined relative to a circumferential direction about the first axis (B, B '), in particular the surface of the guideway ( 17 . 17 ' ) on which the guide element ( 13 . 13 ' ) rests, at different radial distances from the first axis (B, B ') runs. Connecting device according to claim 11, characterized in that in the surface of the guideway ( 17 . 17 ' ) at least one parking position of the connection device ( 5 . 5 ' ), in particular the locking ring ( 7 . 7 ' ), the catch ( 11 . 11 ' ), the latching arm ( 21 . 21 ' ) and / or the guide element ( 13 . 13 ' ), providing surface contour area ( 25 . 25 ' ) is formed, preferably the surface of the guideway ( 17 . 17 ' ) to provide the parking position in areas a constant radial distance from the first axis (B, B ') and / or the distance of the surface of the guideway ( 17 . 17 ' ) from the first axis (B, B ') of the parking position providing surface contour area ( 25 . 25 ' ), starting in both circumferential directions of the first axis (B, B ') at least partially increases. Connecting device according to one of the preceding claims, characterized in that the actuator ring ( 9 . 9 ' ) at least one first mark ( 37 ) and the locking ring ( 7 ) at least one second mark ( 39 . 39 ' ), the first mark ( 37 ) and the second mark ( 39 ) are arranged in alignment with each other when the connecting device ( 5 ), in particular the catch ( 11 ), is in the locked position, and / or the first mark ( 37 ) and the second mark ( 39 ) are not aligned when the connection device ( 5 ), in particular the catch ( 11 ), in the unlocking position and / or the parking position. Connecting device according to one of the preceding claims, characterized by at least one coaxial with the actuator ring ( 9 ' ) and / or the locking ring ( 7 ' ) can be arranged control ring ( 47 ' ), whereby the control ring ( 47 ' ) at least one third mark ( 51 ' ), wherein in particular the third mark ( 51 ' ) on the one hand and the first mark and / or the second mark ( 39 ' On the other hand, in the locking position of the connecting device (FIG. 5 ' ) are aligned with one another and / or in the unlocking position and / or the parking position of the connecting device ( 5 ' ) are not aligned. Connecting device according to claim 14, characterized in that the control ring ( 47 ' ) at least one recess ( 49 ' ) for at least partially receiving the guide element ( 13 ' ) and / or the second end of the latch ( 11 ' ), wherein the recess ( 49 ' ) is preferably inclined relative to a radial direction of the first axis (B, B '). Connecting device according to one of the preceding claims, characterized by at least one coaxial with the actuator ring ( 9 ' ), the locking ring ( 7 ' ) and / or the control ring ( 47 ' ) can be arranged 53 ' ), whereby the closing ring ( 53 ' ) at least one spring hammer element ( 55 ' ), which by means of the guide element ( 13 ' ) is transferable from a rest position into a triggering and / or indicator position, wherein the rest position in the presence of the Verrieglungsposition the connecting device ( 5 ' ) is taken and / or the triggering and / or indicator position in the presence of the unlocking position and / or the parking position of the connecting device ( 5 ' ) is taken. Connecting device according to claim 16, characterized in that the spring hammer element ( 55 ' ) by means of a resilient mounting in the end ring ( 53 ' ) is mounted, wherein by means of the storage a spring hammer element ( 55 ' ) in the rest position compelling restoring force is buildable, and / or the spring hammer element ( 55 ' ) in the Tripping and / or indicator position from the surface of the remaining area of the end ring ( 53 ' protruding), wherein the spring hammer element ( 55 ' ), in particular in the triggering and / or indicator position, is in operative connection with the guide element, in particular rests against it, that by one, preferably by one, in particular for resilient mounting, on the spring hammer element ( 55 ' ) acting force, movement of the spring hammer element ( 55 ' ) is moved from the release and / or indicator position in the rest position, the guide element from the parking position, in particular in the locking position, wherein this movement preferably during a movement of the end ring ( 53 ' ) and / or the spring hammer element ( 55 ' ) against the connecting element, in particular the first stop element ( 4 ), is producible. Connecting device according to claim 16 or 17, characterized in that the closing ring ( 53 ' ) at least a fourth mark ( 57 ' ), wherein in particular the fourth marking ( 57 ' ) on the one hand and the first mark, the second mark ( 39 ' ) and / or the third mark ( 51 ' On the other hand, in the locking position of the connecting device (FIG. 5 ' ) are aligned with one another and / or in the unlocking position and / or the parking position of the connecting device ( 5 ' ) are not aligned. Connecting device according to one of claims 14 to 18, characterized in that the first mark, the second mark, the third mark and / or the fourth mark at least one recess, at least one elevation ( 37 . 39 . 39 ' . 51 ' . 57 ' ), at least one print and / or at least one relief comprises. Connecting device according to one of the preceding claims, characterized in that the actuator ring and / or the locking ring ( 7 . 7 ' ) at least one sealing device ( 29 . 29 ' ), preferably comprising at least one O-ring ( 29 . 29 ' ), and / or with the sealing device ( 29 . 29 ' ) is connectable, in particular at least one recess, such as at least one groove, at least one recess ( 27 . 27 ' ) and / or at least one undercut for receiving the sealing device ( 29 . 29 ' ). Connecting device according to one of the preceding claims, characterized in that the first connection device, the second connection device, the third connection device and / or the fourth connection device at least one latching connection, at least one clamping connection, at least one Adhäsionsverbindung, at least one clip connection, at least one bayonet connection and / or includes or include at least one screw. Connection system for connecting at least two pipe parts, comprising at least one connection device () connected to at least one first pipe part ( 5 . 5 ' ) according to one of the preceding claims, and at least one with at least one second pipe part ( 1 ) connectable and / or from the second pipe part ( 1 ) at least partially, preferably completely, comprising connecting element ( 3 . 4 ).

Images