Connection device for connecting a first pipe end with a second pipe end

Abstract

The invention relates to a connection device (10) for connecting a first pipe end (12) with a second pipe end (14), the first pipe end (12) having a flange-like radial first widening (16) with a first end face (18) and a first back face (20), and the second pipe end (14) having a plurality of flange-like radial second widenings (22) with a second end face (24) and a second back face (26), respectively, the second widenings (22) being separated from one another by means of interruption sections (84), and the connection device (10) comprising a connection ring (74) with a first closure face (76) and a plurality of second closure faces (78), the second closure faces (78) being separated from one another by means of passage sections (80), the first closure face (76) being placeable in abutment with the first back face (20), and the second closure faces (78) being placeable in abutment with the second back faces (26) by the second widenings (22) being guided through the passage sections (80) in an axial movement and then performing a relative rotational movement between the connection ring (74) and the first pipe end (12) and / or a relative rotational movement between the connection ring (74) and the second pipe end (14). Furthermore, the invention relates to a method and a connection assembly (85) for connecting a first pipe end (12) with a second pipe end (14) by means of such a connection device (10).

Description

Technical Field

[0001] The present invention relates to a connection device for connecting the end of a first pipe to the end of a second pipe. Background Technology

[0002] For connecting or interlocking pipe ends, such as hose ends or conduit ends, to each other, the so-called Triclamp is known as a standardized connection terminal. A Triclamp is understood as a foldable connection terminal or a connection clamp with two axially spaced clamping flanges oriented slightly at an angle to each other, forming a radially widening wedge-shaped annular chamber between them. Such a Triclamp is suitable for corrosion-resistant assembly of two pipe ends, each having a flange-like radially widened portion (also called abutting flange) at its end and contacting each other with its respective end faces. The connection terminal is flipped around the abutting radially widened portions such that the clamping flange contacts the respective back faces of the radially widened portions. The force used to fold the connection terminal is converted into an axial force via the bevel of the clamping flange, which acts as a clamping force on the abutting end faces of the radially widened portions. To hold the connection terminal in the folded state, the free ends of the connection terminal can be interlocked. For this purpose, a threaded connection is typically used. Therefore, a card lock connection is provided in US8328457B2 and DE102016108905A1.

[0003] The disadvantage of the three-clamp clamp is that it is relatively difficult to close and reopen it. This is especially true when only one person needs to close or reopen the clamp, as the required time is particularly significant. This increased time consumption is particularly disadvantageous when pipes connected by the clamps must be frequently cleaned, necessitating the opening of the clamps.

[0004] When using interconnected tubing via three-clamp clamps to transport toxic substances, especially in particulate form, it is essential to ensure that these toxic substances do not reach the environment, or only in very small quantities. For this purpose, so-called secondary interfaces are used, typically flexible tubular sheaths made of plastic film that are interconnected and surround the three-clamp clamps. However, in this case, the three-clamp clamps must be opened and closed with the secondary interfaces closed, which additionally complicates the operation and further increases the time required. Summary of the Invention

[0005] Therefore, the object of the embodiments of the present invention is to provide a connection device for connecting a first pipe end and a second pipe end, by means of which the first pipe end and the second pipe end can be connected and disconnected from each other in a simple and inexpensive manner compared to a three-clamp clamp.

[0006] One embodiment of the present invention relates to a connecting device for connecting a first pipe end and a second pipe end, wherein, - The first pipeline end has a flange-shaped radial widening portion, the first widening portion having a first end face and a first back face, and - The second pipe end has a flange-shaped radial second widening portion, the second widening portion having a second end face and a second back face, and the connecting device includes: - A support ring, which can be placed against the first back surface. - A locking device, which can be detachably connected to the support ring. - In the assembled state, the support ring or the locking device protrudes axially from the first end face and forms a receiving opening, into which the second widened portion can be inserted. - At least one locking body, which is radially movably supported in the support ring and / or in the locking device. - The locking body can be adjusted between an open position and a closed position by means of a locking device. In the open position, the second end face can abut against the first end face. In the closed position, the locking body applies an axially acting closing force to the second back face, thereby pressing the second end face against the first end face.

[0007] By incorporating a support ring and a locking device with which it can be connected, the proposed connecting device can be pre-assembled to such an extent that only the second pipe end needs to be introduced into the receiving opening and then the locking body moved radially. Compared to using a three-prong clamp, this method makes it significantly easier to connect and separate the two pipe ends, allowing a single person to perform the connection without problems. Furthermore, the time required for this is significantly reduced compared to using a three-prong clamp. The proposed connecting device is particularly suitable when the first and second pipe ends are constructed identically.

[0008] According to another embodiment, the locking device can surround the support ring in a ring shape. In this embodiment, the locking device can be designed in a ring shape and therefore rotationally symmetrically, thereby keeping manufacturing costs low. Furthermore, the locking device rests against the support ring around its entire circumference, thereby achieving a favorable force flow between the support ring and the locking device.

[0009] In an improved embodiment, the support ring may consist of at least two annular segments that are detachably connected to each other, the annular segments being radially aligned with or protruding radially outward from the first widening. In the case of two annular segments, these two segments can be constructed as semi-annular segments and thus implemented with identical structures. The use of annular segments is particularly advantageous when the ends of two pipes to be connected are respectively fixedly connected to other components, such as containers or fittings. Therefore, there is no support ring that can be pushed onto the free end of the pipe. However, in embodiments of the support ring that are two-piece or multi-piece, it is possible to arrange the support ring around the associated first pipe. In this respect, in such embodiments, the connecting device can also be used when the first pipe is fixedly connected to other components.

[0010] In an improved embodiment, the locking device can be screwed onto the support ring. This screwing is a relatively simple process. Furthermore, the locking device can be positioned axially relative to the support ring in a desired position, and it remains in this position when released by an authorized person. This simplifies the connection and disconnection of the two pipe ends in a technically simple manner.

[0011] In another embodiment, the locking body can be movably supported in the locking device in the radial direction, and the second back face can have a second bevel inclined relative to the second end face, onto which the locking body applies a closing force. As explained at the beginning, particularly when multiple tubing ends are used for chemical or biotechnological applications, many tubing ends have such bevels, allowing these ends to be interconnected by means of the three clamps explained at the beginning, which can also be used with the connection device proposed. In this embodiment, the locking body can be supported in a technically simple manner, and still, the two tubing ends are pressed together with a sufficiently large closing force to seal the tubing ends together.

[0012] An improved implementation may be characterized in that the locking device includes: - The first ring that can be loosely connected to the support ring. - A second ring that is rotatably and axially fixedly connected to the first ring, the second ring engaging with the locking body with a placement surface and having a varying distance between the placement surface and the axis of rotation of the second ring or along the axis of rotation.

[0013] The placement surface may have a varying distance from the rotation axis of the second ring, or it may have a varying distance along the rotation axis of the second ring.

[0014] When the distance between the placement surface and the rotation axis of the second ring varies, the locking body can move more or less radially inward or in the opposite direction by the rotational movement of the second ring. However, because the second ring does not move axially during rotation, the connecting device according to this embodiment can be used even when there is very little structural space around the connecting device along the axial direction. In this embodiment, the first ring and the support ring are provided to be connected in a torsional manner.

[0015] When the spacing between the placement surfaces varies along the rotation axis of the second ring, the locking body can move more or less radially inward or in the opposite direction by means of the axial movement of the second ring.

[0016] According to another embodiment, the locking body can be pre-tightened relative to the placement surface by means of a first pre-tightening device. The way the locking body is pre-tightened to the placement surface ensures that the placement surface always remains in contact with the locking body. This, in particular, ensures that the locking body moves radially outward to release the two pipe ends from each other.

[0017] In another embodiment, the locking body may be pre-tightened radially inward by means of a second pre-tightening device. When the locking body is pre-tightened by both a first and a second pre-tightening device, the pre-tightening force of the second pre-tightening device is selected to be less than that of the first pre-tightening device. This ensures that the locking body always rests against the placement surface. However, a rotational position of the second ring can also be specified, in which the locking body is not against the placement surface and can therefore move radially outward to some extent against the pre-tightening force of the second pre-tightening device. Thus, the end of the second conduit can be pre-fixed, allowing an operator to remove their hand from the end of the second conduit. The locking body is then brought into contact with the placement surface and moved radially inward by rotating the second ring. This further simplifies the connection and release of the conduit end.

[0018] In an improved implementation, the second ring can be manually rotated using a handle. The handle can be designed as a handwheel or lever, allowing the operator to rotate the second ring comfortably without applying excessive force, so that the connecting device can provide a sufficiently large closing force.

[0019] In an improved embodiment, the second ring can be rotated by means of a drive unit. For example, a hydraulic cylinder, pneumatic cylinder, or electric drive can be used as the drive unit. This automates and simplifies the connection and disconnection process. Furthermore, it is possible to record connection and disconnection as automatically as possible. Additionally, the drive unit can be manipulated to provide a defined tightening torque and thus a corresponding closing force. This ensures that the two pipe ends are neither too strongly nor too weakly pressed against each other.

[0020] The present invention relates to a connecting device for connecting the end of a first pipe to the end of a second pipe, wherein, -The end of the first pipeline includes: o has a flange-shaped radially widened portion or o has a plurality of flange-shaped radially widened portions, each having a first end face and a first back face, the first widened portions being separated from each other by interrupted sections, and - The second pipe end has a plurality of flange-shaped radial second widening portions, each of the second widening portions having a second end face and a second back face, the second widening portions being separated from each other by interruption sections, and the connecting device includes: - A connecting ring having a radially circumferential first closed surface and a plurality of second closed surfaces, the second closed surfaces being separated from each other by through sections. - The first sealing surface can be placed against the first back surface, or the plurality of first sealing surfaces can be placed against the first back surface, and - The second sealing surface can be placed against the second back surface in such a way that the second widening portion is guided through the through section in an axial motion and then a relative rotational movement between the connecting ring and the first pipe end and / or between the connecting ring and the second pipe end is performed.

[0021] The closing ring is designed on the first sealing surface such that the connecting ring can be placed in close contact with a large area of ​​the first back surface, while the closing ring has multiple second sealing surfaces to provide a bayonet-type connection with the second widened portion of the second pipe end. In this configuration of the connection device, the first widened portion can be designed according to the standard flange type, as required when using commercially available triple clamps, while the second pipe end is designed in a bayonet shape. Therefore, to connect and disconnect the two pipe ends, only axial movement along the longitudinal axis defined by the first pipe end, followed by rotational movement about the longitudinal axis, is necessary, allowing connection and disconnection to be performed in a very simple and quick manner.

[0022] It should be noted here that when the first pipe end has multiple flange-shaped radially widened portions separated from each other by interrupted sections, the two pipe ends can also be connected to each other by means of a connection device according to this construction scheme. In this respect, this connection device can be used flexibly.

[0023] Furthermore, the connecting ring can have one continuous first closed surface or multiple first closed surfaces. In the latter case, the first closed surfaces are separated from each other by through sections. The closed ring can then be constructed symmetrically.

[0024] In another construction scheme, the connecting ring can be specified as consisting of two or more annular segments. When two annular segments are provided, these segments can be constructed as semi-annular segments and thus implemented with identical structures. When more than two annular segments are provided, these segments can also be designed with identical structures. The use of multiple annular segments is particularly advantageous when the two pipe ends to be connected are respectively fixedly connected to other components, such as containers or fittings. Therefore, there is no support ring via which it can be pushed to the free end of the pipe connected to the first pipe end. However, in two-piece or multi-piece embodiments of the connecting ring, it is possible to arrange the connecting ring around the associated first pipe. In this construction scheme, it is also possible to connect two pipe ends with uninterrupted radial widenings to each other. However, this connection cannot be implemented according to a bayonet-type connection.

[0025] An extended construction scheme may specify that the ring segments can be interconnected by means of cable ties. Cable ties are inexpensive, mass-produced products. Furthermore, cable ties are very simple to operate and reliable in their function. Alternatively, these ring segments can be interconnected by means of snap-fit ​​or latch connections.

[0026] According to an extended construction scheme, the second sealing surface and / or the second back surface may be inclined in the circumferential direction. Due to the inclination of the second sealing surface and / or the second back surface, when the second pipe end rotates, its rotational motion is also converted into axial motion, causing the second pipe end to move toward the first pipe end, thereby providing a certain clamping force between the two pipe ends and sealingly connecting the two pipe ends to each other.

[0027] Another construction scheme specifies that the connecting ring is made of thermoplastic. Nylon or polyethylene (PE) is particularly considered as the thermoplastic. Typically, the first pipe end is fixedly connected to a container, particularly a reactor, thus determining the material of the first pipe end. The second pipe end, conversely, is often connected to a flexible package or bag used for transporting and storing the substance being converted in the reactor. To transfer the substance to the reactor, the two pipe ends are connected to each other. In flexible packages and bags, there is a problem of cleanup after emptying. It has been proven that, especially with toxic substances, the safest method of cleanup is combustion. With the use of the aforementioned thermoplastic, combustion with minimal residue can be achieved. Therefore, the connecting ring is provided to be made of the aforementioned thermoplastic.

[0028] Furthermore, due to the relatively simple geometry of the connecting ring, which can be manufactured by injection molding, high part counts can be provided at low cost.

[0029] According to another construction scheme, the connecting ring can be constructed complementary to a standard three-prong clamp connector. For example, in ISO 2852 1993-06 (published in June 1993, now cancelled) or DIN 31676, standard three-prong clamp connectors are standardized in texts with priority dates in effect. A construction complementary to these standard three-prong clamp connectors should be understood as follows: the connecting ring is designed to match this and sectionally has a “negative shape” relative to the standard three-prong clamp connector. Standard three-prong clamp connectors are frequently used, particularly in biotechnology and pharmaceutical applications. In this construction scheme, the connecting device can be used for a large number of tubing ends. In another construction scheme, the connecting device can be specified to include secondary interfaces that radially space around the connecting ring. These secondary interfaces allow for the interconnection of flexible tubing encapsulations, which can encapsulate two tubing ends. This significantly reduces the likelihood of, in particular, toxic substances, entering the environment.

[0030] One aspect of the present invention relates to a method for connecting a first conduit end and a second conduit end by means of a connection device according to one of the foregoing construction schemes, the method comprising the following steps: - Place the first closed surface of the connecting ring against the first back surface of the first widened portion at the end of the first pipeline. -Guide the second widened portion at the end of the second conduit through the through section of the connecting ring, and - By means of relative rotational movement between the connecting ring and the first pipe end and / or by means of relative rotational movement between the connecting ring and the second pipe end, the second closed surface of the connecting ring is brought into contact with the second back surface of the second widened portion of the second pipe end.

[0031] Another design relates to a method for connecting a first conduit end and a second conduit end by means of a connection device according to one of the construction schemes described above, the method comprising the following steps: - Guide the first widened portion at the end of the first pipeline through the through section of the connecting ring. -The relative rotational movement between the connecting ring and the end of the first pipeline brings the first closed surface of the connecting ring into contact with the first back surface of the first widened portion of the end of the first pipeline. -Guide the second widened portion at the end of the second conduit through the through section of the connecting ring, and - The second closed surface of the connecting ring is brought into contact with the second back surface of the second widened portion of the second pipe end by the relative rotational movement between the connecting ring and the second pipe end.

[0032] The advantages and technical effects already described for the connecting device can also be achieved using these two methods. It should be emphasized that the first and second conduit ends can be connected to each other quickly and easily. In particular, when using a secondary interface, the two conduit ends can be connected and disconnected without opening the secondary interface, minimizing the risk of damaging the secondary interface or the connected flexible tubular enclosure.

[0033] The connecting ring is a relatively simple design component that can be manufactured at a correspondingly low cost.

[0034] One implementation of the present invention relates to a connection assembly for connecting a first pipe end and a second pipe end by means of a connection device according to one of the foregoing construction schemes, the connection assembly comprising: - First pipe end and second pipe end and -Connecting ring, - The first pipe end and the second pipe end can be connected to each other or be connected by means of the connecting ring.

[0035] The advantages and technical effects already described for the connecting device can also be obtained using the connecting components.

[0036] In an improved implementation, the first conduit end and / or the second conduit end may be made of thermoplastic.

[0037] As already explained, using thermoplastic materials has advantages in removing the connecting ring. The same advantages are also evident, particularly in the tubing ends connected to flexible packaging or bags. Therefore, it is provided that the second tubing end and the connecting ring are made of the same thermoplastic material used to manufacture the flexible packaging or bag. Furthermore, the flexible packaging or bag can be connected to the second tubing end by welding.

[0038] An improved implementation is characterized in that the first and / or second pipe ends are constructed as standard three-prong clamp fittings. As explained, standard three-prong clamp fittings are frequently used, particularly in biotechnology and pharmaceutical applications. In this configuration, the connection device can be used for a large number of pipe ends. It should be explained here that if the first and second pipe ends each have multiple first or second widenings separated from each other by interrupted sections, and provided they also conform to, for example, standards ISO 2852 or DIN 31676, then the implementation of the first and second pipe ends should also be considered as a standard three-prong clamp fitting.

[0039] One embodiment of the invention relates to the application of a connecting device according to one of the foregoing embodiments and construction schemes in the manufacture and transport of biotechnological and pharmaceutical products. The advantages and technical effects already described for the connecting device can also be obtained through this application. In particular, when the connecting device operates via a secondary interface, it is also suitable for connecting the ends of conduits through which toxic substances are directed. In many cases, this relates to particulate substances, which can also be directed through the conduit ends in a liquid or gaseous state.

[0040] An improved implementation involves using the connecting device for single-use or batch use and then removing it. In single-use, the connecting ring is removed at least once after connection and disconnection, while in batch use, multiple second pipe ends are connected to the same first pipe end. Batch use exists, for example, when a reactor needs to be filled with a certain amount of material that cannot be supplied by a single bag and requires emptying multiple bags. Therefore, when using the connecting device, multiple second pipe ends, each connected to a bag for storing and transporting the material, are connected to the first pipe end. Once the required amount of material has been transferred to the reactor, the connecting ring is removed. Attached Figure Description

[0041] Exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. In the drawings: Figure 1A This illustration shows a first embodiment of a connecting device according to the present invention for connecting a first pipe end and a second pipe end, wherein the pipe ends are pre-positioned. Figure 1B Shown in Figure 1A The first embodiment of the connecting device shown in the figure, in which the ends of the pipes are connected to each other, Figure 2A This illustration shows a second embodiment of the connecting device according to the invention for connecting a first pipe end and a second pipe end. Figure 2B Shown in Figure 2A The second embodiment of the connecting device shown in the figure has the conduit end pre-positioned. Figure 2C The schematic cross-sectional view shows the following respectively. Figure 2A A second embodiment of the connecting device is shown, in which the ends of the pipes are interconnected. Figure 3A A third embodiment of the connecting device according to the present invention for connecting a first pipe end and a second pipe end is shown, in which the pipe end is pre-positioned. Figure 3B Shown in Figure 3AThe third embodiment shown in the figure has the pipe ends interconnected. Figure 4A A fourth embodiment of the connecting device according to the present invention for connecting a first pipe end and a second pipe end is shown, in which the pipe end is pre-positioned. Figure 4B Shown in Figure 3A The fourth embodiment shown in the figure has the pipe ends interconnected. Figure 5 A schematic top view of the second embodiment of the connecting device is shown. Figure 6A The first conduit end of the connecting device and the initial state of the third embodiment are shown. Figure 6B Shown in Figure 6A The intermediate state of the third embodiment shown in the figure is in which the connecting device is connected to the end of the first conduit. Figure 6C The second conduit end is shown, which can be connected to the first conduit end by means of a connection device according to the third embodiment. Figure 6D Shown in Figure 6C The second pipe end shown is connected to the first pipe end by means of a connection device according to the third embodiment. Figure 6E An additional second conduit end is shown, which is connected to the first conduit end by means of a connection device according to the third embodiment. Figure 6F Shown in Figure 6E The additional second conduit end shown is connected to the first conduit end by means of a connection device according to the third embodiment, and Figure 6G Shown in Figure 6D The second conduit end shown is connected to the first conduit end by means of a connection device according to the third embodiment, the connection device being surrounded by a secondary interface. Detailed Implementation

[0042] Figure 1A A schematic cross-sectional view illustrates a first embodiment of a connection device 101 according to the present invention for connecting a first conduit end 12 and a second conduit end 14. The first conduit end 12 may be, for example, the end of a pipe or hose. The corresponding situation applies to the second conduit end 14. The pipe or hose can be connected to a container or interface, such as a supply interface (not shown).

[0043] The first conduit end 12 includes a flange-shaped radially widened portion 16 having a first end face 18 and a first back face 20. The second conduit end 14 is correspondingly constructed and therefore includes a flange-shaped radially widened portion 22 having a second end face 24 and a second back face 26. Clearly, the first back face 20 and the second back face 26 are inclined relative to the first end face 18 or the second end face 24, such that the first conduit end 12 includes a first inclined surface 28 and the second conduit end 14 includes a second inclined surface 30. Furthermore, it can be seen that the sealing element 32 is fixed to the second conduit end 14 in this case; it is equally possible to fix it to the first conduit end 12. The first conduit end 12 and the second conduit end 14 are constructed such that the first conduit end and the second conduit end can be interconnected using commercially available three-clamp clamps.

[0044] The connecting device 101 has a support ring 34 that can be placed against the first back surface 20. Here, the support ring 34 can be constructed in the form of a tensioning sleeve, such that the support ring 34 can be axially and torsionally fixed to the first pipe end 12. As explained, the first back surface 20 is constructed as a first inclined surface 28, such that the support ring 34 also has a contact surface oriented corresponding to the first inclined surface 28. Furthermore, from... Figure 1A It can be seen that the support ring 34 protrudes radially outward from the first widening portion 16 and the second widening portion 22. Furthermore, when the support ring 34 is placed in contact with the first back surface 20, the support ring 34 protrudes from the first end face 18. Due to this design, the support ring 34 forms a receiving opening 36 into which the second pipe end 14, along with its second widening portion 22, can be introduced, as it is in… Figure 1A As shown in the diagram. Here, the first pipe end 12 and the second pipe end 14 define a longitudinal axis L, and the support ring 34 is arranged concentrically with this longitudinal axis.

[0045] Furthermore, the connecting device 101 includes a locking device 38, which in the first embodiment is annularly constructed and has an internal thread. Therefore, the locking device 38 can be screwed onto the support ring 34 and positioned coaxially with the longitudinal axis L. The support ring 34 has a correspondingly constructed external thread, and the internal and external threads are... Figure 1A Not shown in detail. To rotate the locking device 38, the locking device has a handle 40, which is constructed in the form of a handwheel 68. Therefore, the user can easily rotate the locking device 38 and thereby screw the locking device onto the support ring 34.

[0046] Furthermore, a locking body 42 is provided, which in the first embodiment is fixed to the support ring 34. The locking body 42 is fixed to the support ring 34 in such a way that it can rotate about a rotation axis DS extending perpendicularly to the longitudinal axis L. The locking body 42 is fixed to the support ring 34 in the region accommodating the opening 36 and thus positioned in front of the first end face 18 when viewed from the first rear face 20. The rotation axis DS extends eccentrically through the locking body 42, which in the first embodiment is about the... Figure 1A The defined plane shown has a generally triangular cross-section. The locking body 42 is supported such that it engages with the locking device 38 depending on the position of the locking device. Figure 1A In this configuration, the locking device 38 is in the open position, in which it does not engage with the locking body 42. Therefore, the locking body 42 can rotate about its axis of rotation DS with minimal restriction. Consequently, the second conduit end 14 can be introduced into the receiving opening 36 without interference to the locking body 42.

[0047] The second conduit end 14 is introduced into the receiving opening 36 to such an extent that the first end face 18 contacts the sealing element 32. The support ring prepositions the second conduit end 14 because the second conduit end 14 is oriented axially aligned with the longitudinal axis L of the first conduit end 12. The locking device 38 then rotates about the longitudinal axis L, thereby locking the conduit along the longitudinal axis L. Figure 1A The downward-pointing longitudinal axis L performs axial movement. Here, from a certain position, the locking device 38 contacts the locking body 42, and here the locking body 42 is positioned relative to... Figure 1A The selected figure rotates clockwise about its axis of rotation DS. A portion of the locking body contacts the second back face 26 due to its eccentric support and applies a closing force to the second back face 26, which is at least partially along the longitudinal axis L and points toward the first end face 18. Thus, the second conduit end 14 is pressed against the first end face 18 of the first conduit end 12, thereby compressing the sealing element 32. The locking body 42 is now in the closed position. The first conduit end 12 and the second conduit end 14 are now sealingly connected to each other, as if... Figure 1B As shown, this allows fluids, particulate solids, or the like to be transported from the first conduit end 12 to the second conduit end 14 or vice versa.

[0048] To disengage the second pipe end 14 from the first pipe end 12, the locking device 38 is positioned so that it no longer engages with the locking body 42, for example, in... Figure 1A The location shown in the image.

[0049] exist Figures 2A to 2CA second embodiment of the connection device 102 according to the invention is also shown in a schematic cross-sectional view. Here, the first conduit end 12 and the second conduit end 14 are substantially the same as those for... Figure 1A and Figure 1B The construction described in the embodiment shown is the same, so reference can be made to the description therein. In this case, the connecting device 102 also includes the already explained support ring 34, which can be placed against the first back surface 20 of the first conduit end 12, as also Figure 2A As shown in the diagram. However, the support ring 34 protrudes only slightly from the first widening portion 16 in the radial direction. Furthermore, in this case, the locking device 38 includes a first ring 44 and a second ring 46. The second ring 46 is fixed to the first ring 44 rotatably about the axis of rotation DR, but again, the second ring 46 cannot move axially. The axis of rotation DR coincides with the longitudinal axis L of the first pipe end. The first ring 44 can be detachably connected to the support ring 34. For this purpose, a locking connection portion 48 with a corresponding locking device 50 is provided, such that the first ring 44 must be pushed only onto the support ring 34 until the locking device 50 establishes a form-locking connection between the first ring 44 and the support ring 34. In addition, an anti-torsion portion 52 is provided, by which the first ring 44 cannot rotate about the support ring 36. The first ring 44 and the second ring 46 are arranged concentrically with the longitudinal axis L.

[0050] The already explained locking body 42 is supported in the locking device 38 in this case and is configured as a locking pin 54. The locking pin 54 is axially slidably supported in the blind hole 56 of the second ring 46 and passes through the hole 57 of the first ring 44. The locking pin 54 includes a flange 58 on which a first preload device 60 and a second preload device 62 are supported. The first preload device 60 is also supported on the first ring 44, while the second preload device 62 is supported on the base of the blind hole 56. The first preload device 60 is configured as a spring, while the second preload device 62 is configured as a resilient O-ring.

[0051] Furthermore, the locking pin 54 extends into the groove 64, which extends a certain dimension along the circumferential direction of the second ring 46 and forms a placement surface 66 on its bottom. The distance between the placement surface 66 and the longitudinal axis L varies along the circumferential direction of the groove 64.

[0052] The first preload device 60 is constructed such that it preloads the locking pin 54 toward the placement surface 66, while the second preload device 62 preloads the locking pin 54 radially inward.

[0053] exist Figure 2AIn this initial position, the connecting device 102 is not yet inserted into the receiving opening 36 formed by the first ring 44. In this position, the locking pin 54 is not yet in contact with the placement surface 66 and can therefore move radially outward by a certain dimension. Figure 2B In this configuration, the second conduit end 14 is introduced into the receiving opening 36, and the locking pin 54 abuts against the second inclined surface 30. When the second conduit end 14 is introduced into the receiving opening 36, the second widening portion 22 contacts the locking pin 54, causing the locking pin to move radially outward to such an extent that the locking pin 54 does not obstruct the axial movement of the second conduit end 14. Here, the second pre-tightening device 62 is compressed, thereby generating a radially inward restoring force. Once the second conduit end 14 moves towards the first conduit end 12 to such an extent that the diameter of the second widening portion 22 decreases in the region of the second inclined surface 30, the locking pin 54 moves radially inward again due to the restoring force of the second pre-tightening device 62, and the locking pin 54 can enter contact with the second inclined surface 30. Therefore, in Figure 2B In the position shown, the second conduit end 14 is held in that position by the locking pin 54; however, the second conduit end 14 is not yet fully abutting against the sealing element 32, so that a sealed connection is not yet formed between the first conduit end 12 and the second conduit end 14. However, an operator can remove their hand from the second conduit end 14 and grasp the handle 40 to rotate the second ring 46. As explained, the distance between the placement surface 66 and the longitudinal axis L varies along the circumferential direction of the groove 64. Now, the second ring 46 is rotated such that the distance between the placement surface 66 and the longitudinal axis L decreases in the area of ​​the locking pin 54. Therefore, the locking pin 54 enters contact with the placement surface 66 from a certain rotated position of the second ring 46. The more the second ring 46 is rotated, the farther the locking pin 54 moves radially inward and presses against the second inclined surface 30. Here, the locking pin 54 partially transmits the force along the longitudinal axis L to the second inclined surface 30, thereby moving the second conduit end 14 toward the first end face 18 of the first conduit end 12. Here, the second end face 24 enters sealing contact with the sealing element 32, so that the first conduit end 12 and the second conduit end 14 are sealingly connected to each other. The locking pin 54 is now in the closed position (see...). Figure 2C ).

[0054] As the locking pin 54 moves radially inward, it compresses the first preload device 60, thus applying a radially outward resetting force to the first preload device. Because the locking pin 54 contacts the placement surface 66, the locking pin 54 remains in place. Figure 2C In the position shown, the second pipe end 14 can no longer move axially relative to the first pipe end 12.

[0055] To further disengage the second conduit end 14 from the first conduit end 12, the second ring 46 rotates in the opposite direction. The restoring force generated by the first preload device 60 ensures that even with the rotation of the second ring 46, the locking pin 54 remains pressed against the placement surface 66. Because the distance between the placement surface 66 and the longitudinal axis L increases in this condition, the locking pin 54 moves radially outward. Therefore, the second conduit end 14 is released, and the second conduit end can be disengaged from the first conduit end 12.

[0056] exist Figure 3A and Figure 3B The third embodiment of the connecting device 103 is shown in the cross-sectional view. Figure 3A In the middle, the end 14 of the second pipeline is pre-positioned, while Figure 3B In this configuration, the first conduit end 12 and the second conduit end 14 are interconnected. The connecting device 103 according to the third embodiment is constructed similarly to the connecting device 102 according to the second embodiment, such that only the main differences will be discussed below. The locking body 42 is implemented as a locking ball 63, which is supported in the hole 57 of the first ring 44, similar to the locking pin 54 of the second embodiment of the connecting device 102. In this embodiment, the second ring 46 also has the groove 64 already explained, on the bottom of which a placement surface 66 is formed. The distance between the placement surface 66 and the axis of rotation DR of the second ring 46 varies along the circumferential direction of the groove 64. The locking ball 63 rests against the placement surface 66. If the second ring 46 rotates, the locking ball 63 moves radially inward and presses against the second inclined surface 30. Here, the locking ball 63 partially transmits the force along the longitudinal axis L to the second inclined surface 30, thus causing the second conduit end 14 to move toward the first end face 18 of the first conduit end 12. Here, the second end face 24 enters sealing contact with the sealing element 32, so that the first conduit end 12 and the second conduit end 14 are sealed to each other. The locking ball 63 is now in the closed position (see...). Figure 3B ).

[0057] To detach the first pipe end 12 from the second pipe end 14, the second ring 46 is rotated back to its original position. Figure 3A In the position shown. If the second conduit end 14 moves away from the first conduit end 12, the locking ball 63 is pressed radially outward and the path for the second conduit end 14 is released, so that the second conduit end 14 can be removed from the receiving opening 36.

[0058] exist Figure 4A and Figure 4B The fourth embodiment of the connecting device 104 is shown in a cross-sectional view. Figure 4A In the middle, the end 14 of the second pipeline is pre-positioned, while Figure 4BIn this embodiment, the first conduit end 12 and the second conduit end 14 are interconnected. In this embodiment, the locking body 42 is also configured as a locking ball 63, which is supported in the hole 57 of the first ring 44. In this embodiment, the second ring 46 is axially movable relative to the first ring 44 and is pre-tensioned by means of a spring 65. Figure 4B The position is shown in the diagram. To define this position, a stop element 69 is provided on the first ring 44, by means of which the axial movement of the second ring 46 is restricted. In this embodiment, the second ring 46 is also equipped with a groove 64; however, the distance between the placement surface 66 and the rotation axis DR remains constant in the circumferential direction but changes in the axial direction. In this case, the second ring 46 is not necessarily rotatably fixed to the first ring 44. For this purpose, the concept of "rotation axis" DR should be understood as geometrically, not functionally. If the predicate of the second ring 46 is... Figure 4B In the position shown, the locking ball 63 is pressed onto the second inclined surface 30, thereby pressing the second conduit end 14 onto the first conduit end 12. The locking ball 63 cannot be radially offset outward, so that the second conduit end 14 can no longer move axially relative to the first conduit end 12.

[0059] In order to further disengage the second pipe end 14 from the first pipe end 12, the second ring 46 moves against the preload of the spring 65. Figure 4A In the position shown, the radial distance between the placement surface 66 and the rotation axis DR increases in the region of the locking ball 63 and becomes so large that the locking ball 63 can be radially displaced outward to such an extent that the second conduit end 14 can be released and the second conduit end can be detached from the first conduit end 12.

[0060] exist Figure 5 The text is a jumbled collection of characters and phrases, seemingly from different sources and lacking coherent sentences. A direct translation wouldn't be meaningful. Figures 2A to 2C The diagram shows a schematic top view of a second embodiment of the connecting device 102. Clearly, the support ring 34 consists of two annular segments 67, which are identically constructed and can be interlocked with each other. As already explained, the support ring 34 is more or less flush with the first widening portion 16 in the radial direction, such that the first ring 44 can be pushed onto the support ring 34 without touching the first widening portion 16. Therefore, the first ring 44 can be pushed onto the first widening portion 16 regardless of whether the first pipe end 12 is part of a pipe fixedly connected to a component, particularly a container. However, when the pipe connected to the first pipe end 12 is fixedly connected to a container or the like, it is impossible for the integral support ring 34, viewed from the first end face 18, to be positioned behind the first widening portion 16 such that the support ring 34 can be placed against the first back face 20. Instead, this arrangement can be achieved using a two-piece or multi-piece support ring 34 when constructing the annular segments 67.

[0061] In addition, Figure 5 A handle 40 can be seen, which is constructed as a handwheel 68, only partially shown. Furthermore, a drive unit 70 is fixed to the support ring 34, by means of which the second ring 46 can be automatically rotated about the longitudinal axis L. In the illustrated embodiment, the drive unit 70 includes a piston cylinder unit 72, which can be pneumatically or hydraulically operated, for example.

[0062] exist Figures 6A to 6G The diagram shows different states according to the fifth embodiment of the proposed connection device 105. Figures 6A to 6G Some of the accompanying figures have enlarged views of parts A through E. Figure 6A The initial state of the connecting device 105 is shown. Additionally, a first conduit end 12 is shown, which is constructed identically to the previously described first conduit end 12 that can be used with conventional three-clamp clamps. In this embodiment, the first conduit end 12 also defines a longitudinal axis L (see...). Figure 6A and Figure 6G Furthermore, in the enlarged view of partial A, it can be seen that the sealing element 32 is connected to the first conduit end 12 on the first end face 18.

[0063] The connection device 105 according to the fifth embodiment includes a connecting ring 74, which in the illustrated embodiment consists of two annular segments 67 that can be interconnected by means of cable ties 82, as shown from... Figure 6B As can be seen, the connecting ring 74 has a first closure surface 76 that is radially uninterruptedly surrounded, which is constructed corresponding to the first slope 28 of the first widening portion 16 of the first conduit end 12. Furthermore, the connecting ring 74 includes a plurality of second closure surfaces 78, which are separated from each other by through sections 80 designed according to the type of gap. The second closure surfaces 78 have the same slope as the first closure surfaces 76, as particularly from… Figure 6B A magnified view of part B can be seen.

[0064] exist Figure 6C The diagram shows a second conduit end 14 having a plurality of second widening portions 22 separated from each other by interruption sections 84, which are also designed as gaps. Furthermore, the second widening portions 22 are constructed identically to those described previously.

[0065] The first conduit end 12, the second conduit end 14, and the connecting device 105 together constitute the connecting assembly 85. One embodiment of the connecting assembly 85 is not shown, in which the first conduit end 12 has a plurality of first widening portions 16 separated from each other by interruption sections 84. In this embodiment of the connecting assembly, the first conduit end 12 and the second conduit end 14 can be implemented with identical structures. The connecting ring 74, conversely, can remain unchanged. However, it is also possible to provide the connecting ring 74 with a plurality of first closing surfaces 76 separated from each other by interruption sections 80 (not shown). In this case, the connecting ring 74 can be constructed symmetrically with respect to a plane of symmetry extending perpendicular to the longitudinal axis L.

[0066] To connect the second conduit end 14 to the first conduit end 12, firstly, using cable ties 82, connect the connecting ring 74 to the first conduit end 12, as shown in... Figure 6B As shown in the diagram. Next, the second conduit end 14 is coaxially arranged with the first conduit end 12, and the second conduit end 14 is placed in a rotatable position in which the second widening portion 22 can be axially guided through the interrupted section 80 of the connecting ring 74. Once the second widening portion 22 is located behind the second closing surface 78 of the connecting ring 74 when viewed axially, the second conduit end 14 and / or the connecting ring 74 are rotated about the longitudinal axis L, so that the second back surface 26 of the second widening portion 22 can be brought into contact with the second closing surface 78 of the connecting ring 74. Thus, the first conduit end 12 and the second conduit end 14 are connected to each other according to a bayonet-type connection.

[0067] Here, not only the second sealing surface 78 but also the second back surface 26 can be constructed with a slight inclination in the circumferential direction, and thus a slope. This results in: when the second pipe end 14 rotates, it also moves axially toward the first pipe end 12, so that the second end face 24 achieves a sealing contact with the sealing element 32, as it moves from... Figure 6D Therefore, the first pipe end 12 and the second pipe end 14 are sealed to each other.

[0068] from Figure 6C and Figure 6D It can be concluded that the flexible encapsulation element 88 is connected to the end of the second pipeline 14. In Figure 6E and Figure 6F In this process, a separately constructed encapsulating component 90 is connected to the second conduit end 14. Therefore, it is possible to connect completely different components to the standardized first conduit end 12 when using the connection device 101.

[0069] Figure 6G Shown in Figure 6DThe connection state of the first conduit end 12 and the second conduit end 14 or the connecting assembly 85 is shown in the diagram. A secondary interface 86 is located radially outside the connecting device 105 or the connecting assembly 85. The secondary interface 86 connects two flexible protective sleeves 92, thereby preventing uncontrolled leakage of substances from the first conduit end 12 or the second conduit end 14 into the environment within the area of ​​the connecting device 105. The secondary interface 86 and the protective sleeves 92 can similarly be used in the connecting devices 101 to 104 according to the first to fourth embodiments.

[0070] List of reference numerals

[0071] 10 Connecting Devices

[0072] Connecting devices 101 to 105

[0073] 12 First pipeline end

[0074] 14 Second pipeline end

[0075] 16 First Widening Section

[0076] 18 First end face

[0077] 20 First Back

[0078] 22 Second Widening Section

[0079] 24 Second end face

[0080] 26 Second Back

[0081] 28 First inclined plane

[0082] 30 second slope

[0083] 32 Sealing elements

[0084] 34 Support ring

[0085] 36 Accommodation opening

[0086] 38 Locking device

[0087] 40 Handle components

[0088] 42 Locked Body

[0089] 44 First Ring

[0090] 46 Second Ring

[0091] 48. Locking connection part

[0092] 50 Locking Devices

[0093] 52 Torsional section

[0094] 54 Locking pins

[0095] 56 Blind Holes

[0096] 57 holes

[0097] 58 Flange

[0098] 60 First preload device

[0099] 62 Second preload device

[0100] 63 Locking ball

[0101] 64 slots

[0102] 65 spring

[0103] 66 Placement surface

[0104] 67. Circular segment

[0105] 68 handwheel

[0106] 69. Stopping element

[0107] 70 drive units

[0108] 72 Piston Cylinder Unit

[0109] 74 Connecting ring

[0110] 76 First closed surface

[0111] 78 Second closed surface

[0112] 80 Through Section

[0113] 82 Cable ties

[0114] 84 Interruption Section

[0115] 85 Connecting Components

[0116] 86 Secondary Interface

[0117] 88 Flexible Encapsulation

[0118] 90 sealed packages

[0119] 92 Protective Case

[0120] Partial sections from A to E

[0121] Rotation axis of DS locking body

[0122] Rotation axis of the second ring of DR

[0123] L is the longitudinal axis.

Claims

1. A connecting device (10), the connecting device comprising a first pipe end (12), a second pipe end (14), and a connecting ring (74), wherein the first pipe end (12) and the second pipe end (14) can be connected by means of the connecting ring. -The first pipeline end (12) includes: o A flange-shaped radially widened first extension (16) having a first end face (18) and a first back face (20) or The first flange-shaped radially widened portions (16) each having a first end face (18) and a first back face (20) are separated from each other by means of interrupted sections (84). - The second pipe end (14) has a plurality of flange-shaped radial second widening portions (22), each of the second widening portions having a second end face (24) and a second back face (26), the second widening portions (22) being separated from each other by means of interruption sections (84), and -The connecting ring (74) has: o One or more first closed surfaces (76) and Multiple second closed surfaces (78), the multiple first closed surfaces (76) and the multiple second closed surfaces (78) are separated from each other by through sections (80), -The first closed surface (76) can be placed against a first back surface (20), or the plurality of first closed surfaces (76) can be placed against a plurality of first back surfaces (20), and - The second closing surface (78) and the second back surface (26) can be placed in contact by guiding the second widening portion (22) through the through section (80) with axial movement and then performing relative rotational movement between the connecting ring (74) and the first pipe end (12) and / or relative rotational movement between the connecting ring (74) and the second pipe end (14). A sealing element (32) is fixed on the end of the first pipeline (12) or the end of the second pipeline (14). Its features are, The first back surface (20) and the second back surface (26) are inclined relative to the first end face (18) or the second end face (24). The first pipe end (12) and the second pipe end (14) are constructed as standard three-clamp fittings and include a first bevel (28) or a second bevel (30), and The connecting ring (74) is complementary to the first pipe end (12) and the second pipe end (14) which are constructed as standard three-clamp connectors and are interconnected.

2. The connection device (10) according to claim 1, characterized in that, The connecting ring (74) is composed of two or more annular segments (67).

3. The connection device (10) according to claim 2, characterized in that, The ring segments (67) can be interconnected by means of cable ties (82).

4. The connection device (10) according to any one of claims 1 to 3, characterized in that, The connecting ring (74) is made of thermoplastic.

5. The connection device (10) according to any one of claims 1 to 3, characterized in that, The connection device (10) includes a secondary interface (86) that radially surrounds the connection ring (74).

6. The connection device (10) according to any one of claims 1 to 3, characterized in that, The first pipe end (12) and / or the second pipe end (14) are made of thermoplastic.

7. A method for connecting a first conduit end (12) and a second conduit end (14) by means of a connecting device (10) according to any one of claims 1 to 6, the method comprising the steps of: - Place the first closed surface (76) of the connecting ring (74) against the first back surface (20) of the first widened portion (16) of the first pipe end (12). - The second widening (22) of the second pipe end (14) is guided through the through section (80) of the connecting ring (74), and - By means of the relative rotational movement between the connecting ring (74) and the first pipe end (12) and / or by means of the relative rotational movement between the connecting ring (74) and the second pipe end (14), the second closed surface (78) of the connecting ring (74) and the second back surface (26) of the second widened portion (22) of the second pipe end (14) are placed in contact.

8. A method for connecting a first conduit end (12) and a second conduit end (14) by means of a connecting device (10) according to any one of claims 1 to 6, the method comprising the steps of: - Guide the first widened portion (16) of the first pipe end (12) through the through section (80) of the connecting ring (74). -The relative rotational movement between the connecting ring (74) and the first pipe end (12) causes the first closed surface (76) of the connecting ring (74) to be placed against the first back surface (20) of the first widened portion (16) of the first pipe end (12). - The second widening (22) of the second pipe end (14) is guided through the through section (80) of the connecting ring (74), and - The second closed surface (78) of the connecting ring (74) and the second back surface (26) of the second widened portion (22) of the second pipe end (14) are placed in contact by the relative rotational movement between the connecting ring (74) and the second pipe end (14).

9. A connection assembly (85) having a connection device according to any one of claims 1 to 6, wherein the first conduit end (12) and the second conduit end (14) are connected to each other by means of the connection ring (74).

10. The connecting component (85) according to claim 9, characterized in that, The first pipe end (12) and / or the second pipe end (14) are made of thermoplastic.

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