Sealed transfer device between two closed volumes featuring safe opening

Abstract

The invention relates to a sealed transfer device between two closed volumes, comprising two flanges (10, 20) which can be fixed to each other by means of a first bayonet connection, two doors (11, 21) which close the passage opening defined by the flanges and which can be fixed to each other by means of a second bayonet connection, and a control mechanism comprising a control part (3) which is movably mounted on the first flange (10) between a position in which it closes the doors (11, 21) and a position in which it opens the doors (11, 21), characterized in that the control mechanism comprises a part (7) for locking the second door (21) to the first door (11), thereby ensuring that the doors are locked together when the control part (3) switches to its position in which it opens the first and second doors, the locking part (7) being integrated into the first door (11).

Description

Technical Field

[0001] This invention relates to a sealed transfer device between two enclosed volumes.

[0002] In this application, "volume" refers to any product, device, or facility that defines volume. Therefore, it can be a casing, isolator, receptacle, container, bag, etc.

[0003] "Closed volume" is understood to refer to a volume isolated from the external environment. This can specifically, but not exclusively, refer to the volume used for the preparation, storage, and / or handling of products that must not come into contact with the outside world or the user.

[0004] The transfer device according to the invention is intended, particularly but not exclusively, for connecting two enclosed volumes to transfer a product from one volume to another without damaging the container. This may include, for example, the transfer of hazardous products, such as certain biological, chemical, or radioactive products; transfer components, such as stoppers, vials, plungers, syringes, etc.; transfer environmental control devices, such as culture media plates, particle counters, etc.; transfer cleaning systems; transfer of liquids, powders, tools; transfer of waste to the outside of the casing; and / or any elements necessary for the production or maintenance of the production line. Background Technology

[0005] A sealing transfer device between two enclosed volumes typically includes two flanges, each defining a passage opening to the enclosed volume, and each passage opening is closed by a door. The flange and door of one enclosed volume can be connected to the flange and door of the other enclosed volume respectively via bayonet connections, and can be secured to each other by rotational movement of one flange and its associated door relative to the flange and door to which they are attached.

[0006] The sealing transfer device further includes control components for opening and closing two doors that are attached and fixed to each other. The control components, movably mounted on one of the flanges, can be operated from inside one of the volumes. To prevent breach of the seal between the two fixed volumes, the sealing transfer device advantageously includes mechanisms to ensure the safety of opening the doors.

[0007] Patent application EP0586307 describes a sealing transfer device that ensures security in this way. The sealing transfer device includes a movable control component mounted on one of the flanges to be movable between a closed position and an open position, a ramp system sandwiched between the control component and a door associated with the flange on which the control component is mounted to disengage the door from the associated flange when the control component moves from its unlocked position to its open position, and a series of mechanical locks. Two of the locks prevent any opening operation as long as there is no other door enclosing the volume, and as long as the flange associated with this door is not fully connected to the flange supporting the control component, a third lock prevents any disconnection of the two flanges, and a fourth lock prevents the control component from returning to its initial position when the door is open. The disadvantage of this implemented security mechanism is that it complicates the structure of the transfer device, makes manufacturing difficult, and increases the risk to its reliability from the perspective of sealing and cleanability. Another disadvantage of this mechanism is that it is difficult to operate in certain situations.

[0008] The object of this invention is to solve these problems by proposing a sealing transfer device between two enclosed volumes, which simplifies and increases the security guarantee for opening the door of the two volumes connected to each other, and is reliable and easy to implement from a sealing point of view.

[0009] Another object of the present invention is to provide a transfer device that improves the ergonomics of opening.

[0010] Another object of the present invention is to provide a transfer device with an improved and more clean shape. Summary of the Invention

[0011] Therefore, and according to a first aspect, the present invention provides a sealing transfer device between two enclosed volumes, comprising first and second flanges defining passage openings to the enclosed volumes, the first and second flanges being fixable to each other via a first bayonet connection; first and second doors closing the passage openings, the first and second doors being fixable to each other via a second bayonet connection, the first door being hinged to the first flange by means of a hinge pin; and a control mechanism comprising a control member movably mounted on the first flange between a closed position and an open position of the first and second doors fixed to each other, the notable feature of the device being that the control mechanism includes a component for locking the second door to the first door, thereby ensuring that the doors are locked together when the control member switches to the open position of the first and second doors, the locking component being integrated into the first door.

[0012] Advantageously, the component for locking the second door to the first door includes locking fingers that extend toward the passage opening and are radially movable between a position in which they are recessed into the first door and a position in which they protrude radially from the first door for locking the doors together.

[0013] According to an advantageous embodiment, the sealing transfer device further includes a component for locking the second flange to the first flange when the first and second doors are in the open position, the component being disposed at the hinge.

[0014] Advantageously, the component for locking the second flange to the first flange includes an elongated hole receiving a rotating pin parallel to the hinge pin and connected to the hinge pin via a drive member, and a locking finger extending toward the channel opening. The locking component is translatable in a direction perpendicular to the hinge pin between a position where the finger is recessed into the first flange and a position where the finger protrudes radially from the first flange for locking the flanges together.

[0015] Advantageously, the rotating pin is actuated by an external lever passing through the first flange to allow the first door to be opened. Passing through the flange overcomes sealing-related problems.

[0016] According to an advantageous configuration, the control mechanism further includes a first blocking member that ensures that the control member is blocked in the closed position in the absence of the second flange.

[0017] Advantageously, the first blocking member includes an eccentric hole through which a rotating pin fixed to the control member passes, the first blocking member being radially movable between a locked position in which the eccentric hole blocks rotation of the control member and an unlocked position in which the eccentric hole moves to allow rotation of the control member, the movement of the second blocking member being ensured by lugs of the bayonet system of the second flange.

[0018] It can also be specified that the control mechanism includes a second blocking component, which ensures that the control component is blocked in the absence of the second door.

[0019] Advantageously, the second blocking member is radially movable between a blocking position in which its circumferential end engages in a blocking hole in the control member and a release position in which the circumferential end disengages from the blocking hole, the second blocking member being moved by a lug of the bayonet system of the second door.

[0020] Advantageously, the control component is movable about an axis circumferentially tangent to the first flange between a closed position where the component forms an angle α with the transverse plane of the flange and an open position where the component forms an angle β greater than α with the transverse plane and opens the connected door.

[0021] Advantageously, the control component is a handle for opening the α door, which can be manually activated and is movably mounted to rotate about a pin parallel to the hinge pin and positioned relative to the hinge in the diametrical direction. Attached Figure Description

[0022] Referring to the accompanying drawings, other features and advantages of the invention will become apparent from the following specific embodiments, in which:

[0023] - Figure 1 This is a perspective view of the inner volume of the first volume of the closed assembly;

[0024] - Figure 1a yes Figure 1 A top view of the closed assembly;

[0025] - Figure 2 yes Figure 1 The longitudinal section view of the closing assembly along axis II-II;

[0026] - Figure 3 yes Figure 1 A cross-sectional view of the outer volume of the closed assembly;

[0027] - Figure 4 It is an exploded schematic view of the container that forms the second volume;

[0028] - Figure 5a This is a cross-sectional view of the mechanism for the existence of the door in the second volume when the second volume is combined with the first volume, with the door in the first volume in the locked position;

[0029] - Figure 5b Showing from Figure 5a The mechanism has the first volume door in the unlocked position;

[0030] - Figure 5c It comes from Figure 5b An enlarged view of the mechanism;

[0031] - Figure 6a This is a cross-sectional view of a safety assurance mechanism used to detect the presence of the flange of the second volume when the second volume is combined with the first volume, with the door of the first volume in the locked position;

[0032] - Figure 6b It comes from Figure 6aA cross-sectional view of the security mechanism, with the door of the first volume in the unlocked position;

[0033] - Figure 7a This is a cross-sectional view of a security mechanism for locking a second-volume door to a first-volume door, the mechanism being in the unlocked position;

[0034] - Figure 7b It comes from Figure 7a A cross-sectional view of the security mechanism shown during the opening of the door;

[0035] - Figure 7c It comes from Figure 7a An enlarged view of the security mechanism, shown in the position for locking the doors together;

[0036] - Figure 7d It comes from Figure 7c A longitudinal cross-sectional view of a security mechanism, the mechanism being positioned to lock the doors together;

[0037] - Figure 8 is a perspective view of the security mechanism for unlocking the flange of the second volume when the second volume is combined with the first volume and the door of the first volume is in the open position;

[0038] - Figure 8a This is a cross-sectional view of the safety assurance mechanism from Figure 8, showing the position of the flange used to unlock the second volume;

[0039] - Figure 8b This is a cross-sectional view of the safety assurance mechanism from Figure 8, located in the middle position of the flange used to lock the second volume;

[0040] - Figure 8c This is a cross-sectional view of the safety assurance mechanism from Figure 8, showing the position of the flange used to lock the second volume.

[0041] - Figure 9 This is a cross-sectional view of the transfer device, showing the connecting door between the two enclosed volumes in its minimum open position;

[0042] - Figure 9a It comes from Figure 9 Detailed perspective view of the hinge of the transfer device;

[0043] - Figure 10 This is a cross-sectional view of the transfer device, showing the connecting door between the two enclosed volumes in its fully open position;

[0044] - Figure 10a It comes from Figure 10 Detailed perspective view of the hinge of the transfer device;

[0045] - Figure 11 This is a top perspective view of an alternative embodiment of a security mechanism for locking the flange of the second volume when the second volume is combined with the first volume and the door of the first volume is in the open position;

[0046] - Figure 12 It comes from Figure 11 A bottom-view perspective of the security assurance agency;

[0047] - Figure 13 It is combined with the hinge pin from Figure 11 A cross-sectional view of the safety assurance mechanism;

[0048] - Figure 13a It is along the flange position used to unlock the second volume. Figure 13 A cross-sectional view of the axis AA of the assembly depicted in the figure;

[0049] - Figure 13b It is located in the position of the flange used to lock the second volume. Figure 13a A view of the assembly.

[0050] For clarity, the same or similar elements in the various embodiments are indicated by the same reference numerals in all the drawings.

[0051] In the following text, the term "inside / internal" in relation to a closed volume refers to the space inside or pointing towards the interior of the closed volume. Similarly, the term "outside / external" in relation to a closed volume refers to the space outside or away from the interior of the closed volume. Detailed Implementation

[0052] The accompanying drawings depict a sealed transfer device between two enclosed volumes.

[0053] The transfer device according to the invention includes Figure 1 The first assembly 1 shown includes a first flange 10 defining a passage opening to a first enclosed volume (not shown) and a first door 11 closing the passage opening defined by the first flange 10. The first door 11 is engaged with the flange 10 by a hinge 4.

[0054] The transfer device further includes Figure 4 The second assembly 2 shown includes a second flange 20 defining a passage opening 22 leading to a second enclosed volume 23 and a second door 21 closing the passage opening defined by the second flange 20.

[0055] The first and second flanges 10 and 20 can be secured to each other via a first bayonet connection. Similarly, the first and second doors 11 and 21 can be secured to each other via a second connection, such as a bayonet connection. Therefore, the flanges and doors are respectively provided with internal or external notches and lugs.

[0056] The first flange 10 and the first door 11 of the first volume will subsequently be referred to as α flange 10 and α door 11, and the second flange 20 and the second door 21 of the second volume will be referred to as β flange 20 and β door 21.

[0057] According to a particular embodiment, the first enclosed volume is the outer shell, while the second enclosed volume is... Figure 4 The container shown is of this type. This is, of course, one embodiment, and the device according to the invention is not limited to this type of enclosed volume.

[0058] The device according to the invention further includes a control mechanism comprising a control member 3 mounted on an α flange 10 for movement between a closed position in which the α door 11 sealably closes the passage opening defined by the α flange 10 and a position for opening the α door and the β door. In the depicted embodiment, the control member 3 is an opening handle 31 of the α door 11, the handle being manually actuated and rotatably mounted about a rotating pin 30 between a closed position forming an angle α with the transverse plane of the flange and an open position forming an angle β with the transverse plane, the rotating pin being arranged diametrically opposite to a hinge 4, and the angle β being greater than the angle α. Figure 1a Pin 30 is advantageously positioned circumferentially tangent to the α flange 10 and perpendicular to the axis of the channel opening associated with the α flange. Pin 30 is housed in housing 32. Control component 3 and hinge 4 are supported by α flange 10.

[0059] Advantageously, the device according to the invention includes a component for rotating the control component 3, thereby allowing the component to be blocked when it is in the closed position of α door 11 and the open positions of α and β doors.

[0060] To improve security associated with the joint opening of the doors of the two volumes and the interconnected placement of each of their interiors, the transfer device includes a set of security mechanisms that allow the door of the second volume and the β flange 20 to be unlocked only when the second volume is connected to the first volume.

[0061] More specifically, the illustrated sealing transfer device includes a set of safety mechanisms, comprising two components for blocking the control component 3 and two components for locking the door and flange together. Therefore, the device includes a first blocking component 5 that blocks the control component 3 in the absence of the β door 21, a second blocking component 6 that blocks the control component 3 in the absence of the associated β flange 20, a first locking component 7 that interlocks the β door 21 with the α door 11, and a second locking component 8 that interlocks the β flange 20 with the α flange 10 when the two joined doors 11, 21 are opened. The blocking component 5 and the locking component 7 are integrated into the door, while the blocking component 6 is located in the control unit, and the locking component 8 is located in the hinge 4. The operation of these safety components is described below.

[0062] First safety guarantee component: Blocking component 5 ( Figure 5a , 5b 5c)

[0063] The first blocking member 5 has the function of blocking the control member 3 in the closed position when the β door 21 is not locked to the α door 11. Therefore, it forms a component for ensuring the security of the β door 21 on the α door 11.

[0064] The first blocking component 5 is a lock integrated into the α-door 11. It includes an upper finger 50 and a lower finger 52, the two fingers being parallel to each other, extending parallel to the plane of the α-door 11, and connected to each other by a connecting wall. The blocking component 5 is mounted to slide radially in a cavity 51 provided in the α-door 11 against the action of a reset member (here, a compression spring 55), i.e., perpendicular to the axis of the channel opening defined by the α-flange and perpendicular to the rotating pin 30 of the control component 3. Therefore, the blocking component 5 can move between a blocking position in which the blocking finger 50 engages in a blocking hole 33 provided in the housing 32, which is supported by the α-flange 10, and a release position in which the blocking finger 50 disengages from the blocking hole 33, and the pin 30 connected to the control component 3 is housed in the housing. In the absence of a container, the control component 3 is blocked in the closed position by the blocking finger 50 engaging in the blocking hole 33. Figure 5aWhen the container is docked onto the outer shell, the β flange 20 and β door 21 contact the α flange 10 and α door 11 of the outer shell, respectively, with the outer lug 200 of the β flange 20 positioned in the recess 100 of the α flange 10. The operator then rotates the β portion (β door and flange) clockwise (approximately 60 degrees) into the α portion (α door and flange) until it contacts the stop 14 of the α flange 10. Translation of the β flange 20 is then blocked by the α flange 10. The β door 21 unlocks from the β flange 20 and locks with the α door 11. During the rotational movement to connect the β portion to the α portion, one of the inner lugs 210 of the β door 21 pushes the lower finger 52 of the blocking member 5, which counteracts the action of the compression spring 55 and moves the finger away from the α flange 10 into the cavity 51. The blocking member 5 carries the finger 50 during its movement, which then disengages from the blocking hole 33 in the block 32. Once the finger is released, control component 3 can be actuated to open the α and β doors that are locked together. The locking of the doors together will be described later.

[0065] Second safety guarantee component: Blocking component 6 ( Figure 6a , 6b )

[0066] The second blocking component 6 has the function of blocking the control component 3 in the closed position when the β flange 20 is not fully fixed to the α flange 10. Therefore, it forms a component for ensuring the safety of the β flange 20 on the α flange 10.

[0067] The second blocking component 6 serves as a latch. Its special shape allows the opening to be mechanically blocked even when the presence of the β flange 20 is not observed.

[0068] More specifically, the blocking member 6 includes an eccentric hole 60 (in the depicted example, a hole having two parallel and offset opening axes) for receiving the rotating pin 30 of the control member 3. The blocking member 6 also includes fingers 61 extending to protrude from the α flange 10. This blocking member 6 is mounted in the housing 32 so as to slide radially against and against the compression spring 65, i.e., perpendicular to the axis of the channel opening defined by the α flange 10. It can be positioned in the eccentric hole 60 to block rotational movement of the pin of the control member 3. Figure 6a The eccentric hole moves toward the outer circumference of the α flange 10 to allow the rotation of the rotary pin 30 connected to the control component 3 to the release position. Figure 6b Move between ).

[0069] In the absence of a container, the rotating pin 30 passes through the portion of the hole 60 that blocks the rotational movement of the pin, thus blocking the control member 3 in the closed position. When the container is mated to the housing, the β flange 20 and β door 21 contact the α flange 10 and α door 11, with the outer lug 200 of the β flange 20 positioned in the recess 100 in the α flange 10. The β portion is then connected to the α portion by rotating the β portion clockwise (approximately 60°) until it contacts the stop 14 supported by the α flange 10. Translation of the β flange 20 is then blocked by the α flange 10. During the rotational movement for connecting the β portion to the α portion, the outer lug 200 of the β flange 20 pushes the finger 61 of the second blocking member 6, which has the function of moving the blocking member 6 radially outward toward the α flange 10 and thus moving the hole 60 relative to the rotating pin of the control member 3 to the position where the rotating pin 30 of the control member 3 is released. Figure 6b The effect of ).

[0070] The advantage of providing these two blocking components 5 and 6 is that they offer dual safety assurance in terms of opening the connecting door, which can only be opened if the β flange 20 and β door 21 are securely connected to the α flange 10 and α door 11 of the housing, respectively. Therefore, these two blocking components are designed to ensure the safety of the β door and β flange on the associated α section.

[0071] Third safety guarantee component: Locking component 7 ( Figures 7a to 7d )

[0072] The locking component 7 functions to lock the β door 21 to the α door 11, i.e., to prevent the β door 21 from separating from the α door 11 when the control component 3 is moved to the open position. The locking component 7 includes a lower finger 71 and an upper finger 72, the two fingers being parallel to each other, extending parallel to the plane of the α door 11, and connected to each other via a connecting wall. The lower finger 71 forms a locking finger (also indicated by reference numeral 71) capable of moving from its recessed position within the α door 11 to its radially protruding locking position from the α door 11. The locking component 7 is mounted to resist a compression spring 73 and slides radially into the cavity 70 within the α door 11 under the action of the compression spring. When the control component 3 is in the closed position, the locking component 7 is held against the housing 32 via the upper finger 72 under the action of the compression spring 73. Figure 7a When the control component 3 moves to the position for opening the door, the α door 11 carries the upper finger 72 during its rotational movement, and the upper finger disengages from the housing 32. Figure 7b and 7cWhen the upper finger 72 is fully disengaged, the locking member 7 is pushed outward by the compression spring, thereby moving the locking finger 71 into the notch in the β door 21. Since the β door 21 is blocked by the inner lug 210 of the β door 21 abutting between the lower finger 71 and the stop 12 supported by the α door 11, the β door can then no longer rotate relative to the α door 11. Figure 7d ). Figures 7a to 7c The locking component 7 is shown in its position for closing the door. Figure 7a ) to its position for opening the door ( Figure 7c The movement of locking component 7 during the transition period of ) thus depicts the intermediate position ( Figure 7b ).

[0073] Fourth safety assurance component: Locking component 8 ( Figures 8a to 8c and alternatives Figures 11 to 13b )

[0074] The locking component 8 has the function of locking the β flange 20 and the α flange 10, that is, preventing the β flange 20 and the α flange 10 from separating when the door is opened inside the housing. It is combined with the pin 40 of the hinge 4. It forms a component that ensures the security of the door-opening β flange 20 in a manner that prevents unlocking.

[0075] The locking component 8 includes a hole 80 through which a bolt 42 passes, the bolt being supported by a second rotating pin 41 connected to a pin 40 of a hinge 4 via drive members 43, 44 (cams in the depicted example). The second rotating pin 41 is also connected to a third pin 45, which passes through an α flange 10 and can be actuated by an external lever (not shown) to allow the α door 11 to open.

[0076] The locking component 8 includes a finger 81 facing the interior of the channel opening. The locking component is translatable perpendicular to the rotating pin 40 of the hinge 4 toward the interior of the channel opening of the α flange 10.

[0077] When the α door 11 is closed, the locking member 8 is positioned such that the finger 81 is recessed relative to the inner surface of the α flange 10. When the door is opened by actuation of the external lever, the third pin 45 rotates the second rotating pin 41 via the drive member 43. During the rotation of the second pin 41, the bolt 42 slides along the hole 80, which is arranged to translate the locking member 8 and position the finger of the locking member in a recess in the β flange 20. Since the β flange 20 is blocked by one of the external lugs 200 of the β flange 20 against the finger 81 of the locking member and by the stop 14 of the α flange 10, the β flange can then no longer rotate relative to the α flange 10. In the previously described method, the opening of the door is actuated by an external lever. It is clear, of course, that this is one embodiment, and the hinge may not be connected to the external lever (in which case the hinge will lack the third rotating pin). Then, after releasing the control member 3, the door is manually opened by pulling the α door from the inside.

[0078] To facilitate the flow of products from one enclosed volume to another, the hinge is equipped with an eccentric cam. Figure 9 , 9a (10, 10a). Therefore, the pin 40 of the hinge 4 includes a cam 45, which advantageously has a notched surface and a generally oval profile arranged under stress on the bolt 46, the portion 47 of the bolt that contacts the cam being translationally movable. This arrangement allows the door to open at a minimal angle within a certain range, thereby allowing the passage for transferring products to remain unobstructed relative to the plane where the passage opening is located.

[0079] Figures 11 to 13b An alternative embodiment is shown for locking the β flange 20 with the α flange 10 when the door is opened inside the housing.

[0080] In this alternative, the locking member 8 is connected to the pin 40 of the hinge 4 via a cam, the cam being fixedly mounted around the pin. The cam 90 has a first profile of a pawl 91, which is arranged to be stressed on a bolt 82 supported by the locking member 8 and thus translate the locking member toward the channel opening during actuation of rotation in one direction (clockwise in the depicted example). The cam 90 also has a second profile 92, which is arranged to block the bolt 82 and thus for translation of the locking member 8 when the α door 11 is in the closed position. Advantageously, the locking member 8 is translated within the guide rail 100.

[0081] Therefore, when the α door 11 is closed, the locking member 8 is positioned such that the finger 81 is recessed relative to the inner surface of the α flange 10, while the cam 90 is in position for blocking the bolt 82 via the second profile 92. Figure 13a When the door is opened, the pin 40 of hinge 4 rotates clockwise, as... Figure 13bAs depicted, this causes the cam 90 to rotate and thereby place the bolt 82 under stress via the contour of the cam's pawl 91. As the locking member 8 is pushed by the cam 90, the locking member translates along the guide rail toward the channel opening in a manner guided by the guide rail 100 to position the finger 81 in the notch 20 in the β flange.

[0082] The present invention has been described above by way of examples. It should be understood that those skilled in the art can make various alternative embodiments of the present invention without departing from the scope of the invention.

Claims

1. A sealed transfer device between two enclosed volumes, comprising: - First and second flanges (10, 20) defining channel openings to the enclosed volume, the first and second flanges (10, 20) being able to be connected and secured to each other via a first bayonet. - First and second doors (11, 21), which close the passage opening, the first and second doors (11, 21) 21) They can be connected and fixed together via a second bayonet. - The first door (11) is hinged to the first flange (10) by means of a hinge (4), the hinge including a hinge pin (40). - A control mechanism comprising a control component (3) movably mounted on the first flange (10) between a closed position of the first door closing the associated passage opening and an open position of the first and second doors (11, 21) fixed to each other. The control mechanism is characterized by including a locking component (7) for locking the second door (21) to the first door (11), thereby ensuring that the first and second doors are locked together when the control component (3) switches the first and second doors to the open position, the locking component (7) being integrated into the first door (11); The locking member (7) for locking the second door (21) to the first door (11) includes a first locking finger (71) extending toward the channel opening and capable of radially moving between a position in which it is recessed into the first door and a position in which it protrudes radially from the first door (11) for locking the first and second doors together.

2. The sealing transfer device according to claim 1, characterized in that, The sealing transfer device further includes another locking component (8) for locking the second flange (20) to the first flange (10) when the first and second doors (11, 21) are in the open position, the other locking component being disposed at the hinge (4).

3. The sealing transfer device according to claim 2, characterized in that, The other locking member (8) for locking the second flange (20) to the first flange (10) includes an elongated hole (80) accommodating a rotating pin parallel to the hinge pin (40) and connected to the hinge pin via a drive member, and a second locking finger (81) extending toward the channel opening. The other locking member (8) is translatable in a direction perpendicular to the hinge pin (40) between a position where the second locking finger (81) is recessed into the first flange (10) and a position where the second locking finger (81) protrudes radially from the first flange (10) for locking the flanges together.

4. The sealing transfer device according to claim 3, characterized in that, The rotating pin is actuated by an external lever passing through the first flange (10) to allow the first door (11) to be opened.

5. The sealing transfer device according to any one of claims 1-4, characterized in that, The control mechanism further includes a first blocking component (6) that ensures that the control component (3) is blocked in the closed position in the absence of the second flange (20).

6. The sealing transfer device according to claim 5, characterized in that, The first blocking member (6) includes an eccentric hole through which a rotating pin fixed to the control member (3) passes. The first blocking member is capable of radial movement between a locked position in which the eccentric hole blocks the rotation of the control member (3) and an unlocked position in which the eccentric hole moves to allow the rotation of the control member (3). The movement of the first blocking member is ensured by lugs of the bayonet system of the second flange.

7. The sealing transfer device according to any one of claims 1-4, characterized in that, The control mechanism includes a second blocking component (5) that ensures that the control component (3) is blocked in the absence of the second door (21).

8. The sealing transfer device according to claim 7, characterized in that, The second blocking member (5) is radially movable between a blocking position in which its circumferential end engages in a blocking hole (33) in the control member (3) and a release position in which the circumferential end disengages from the blocking hole (33), the second blocking member being moved by a lug of the bayonet system of the second door.

9. The sealing transfer device according to any one of claims 1-4, characterized in that, The control component (3) is movable about an axis circumferentially tangent to the first flange (10) between a closed position where the control component forms an angle α with the transverse plane of the flange and an open position where the control component forms an angle β greater than α with the transverse plane and opens the connected door.

10. The sealing transfer device according to any one of claims 1-4, characterized in that, The control component (3) is a handle (31) for opening the α door (11), which can be manually activated and is movably mounted to rotate about a pin (30) parallel to the hinge pin (40) and positioned relative to the hinge (4) in the diametrical direction.

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